Scholars@Duke

• Background
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  Education, Training, & Certifications

  • Ph.D., The University of Chicago 1991
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  Duke Appointment History

  • Associate Professor of Biology, Biology, Trinity College of Arts & Sciences 2000 - 2008
• Research
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  Selected Grants

  • R2 [Reciprocal Relationships]: Mentorships to Strengthen and Sustain STEM Teachers awarded by  National Science Foundation 2020 - 2025
  • Genetic and Genomics Training Grant awarded by National Institutes of Health 2020 - 2025
  • Collaborative Research: RoL: Rapid Evolution of Reproductive Isolation via Hybrid Seed Lethality in Mimulus awarded by  National Science Foundation 2019 - 2023
  • Genetics Training Grant awarded by National Institutes of Health 1979 - 2020
  • Collaborative Research: Hybrid Seed Inviability and the Evolution of Endosperm Development in Mimulus awarded by  National Science Foundation 2016 - 2019
  • DISSERTATION RESEARCH: Understanding the Role of Chromosomal Inversions in Life History Divergence and Local Adaptation in Mimulus awarded by  National Science Foundation 2015 - 2018
  • Collaborative Proposal: The ecological genomic basis of parallel serpentine adaptation in Mimulus awarded by  National Science Foundation 2014 - 2018
  • DISSERTATION RESEARCH: Genetic Basis of Population Divergence in the Threshold of Environmental Induction of a Floral Popolyphenism in a Mimulus Species awarded by  National Science Foundation 2014 - 2018
  • DISSERTATION RESEARCH: Shedding Light on the Complex Relationship Between Circadian Clock Variation and the Trade-off Between Flowering Time and Flower Size awarded by  National Science Foundation 2015 - 2017
  • DISSERTATION RESEARCH: Genetic Basis and Adaptive Significance of Key Developmental Traits Underlying Ecological Differences Between Sympatric Sister Species awarded by  National Science Foundation 2014 - 2017
  • A Genomic Analysis of Complex Trait Variation in Mimulus awarded by University of Kansas 2012 - 2016
  • LiT: Genomic Analysis of Life-history Adaptation to Variation in Seasonal Water Availability in Mimulus awarded by  National Science Foundation 2010 - 2014
  • DISSERTATION RESEARCH: The Genetics of Adaptation to a Novel Stressful Environment in Mimulus awarded by  National Science Foundation 2012 - 2014
  • DISSERTATION RESEARCH: The Genetic Basis of Local Adaptation: Serpentine Tolerance in Mimulus guttatus awarded by  National Science Foundation 2011 - 2013
  • DISSERTATION RESEARCH: The evolution of phenotypic and genomic changes in allotetraploid Mimulus awarded by  National Science Foundation 2010 - 2013
  • Do Parental Conflict and Genomic Imprinting Cause Hybrid Lethality in Mimulus? awarded by National Institutes of Health 2011 - 2012
  • Discovering Genome Evolution in a Model System for Plant Ecological Genomics awarded by National Institutes of Health 2010 - 2012
  • Ecological Genomics of Drought Adaptation in Mimulus awarded by  National Science Foundation 2007 - 2011
  • FIBR: Integrated Ecological and Genomic Analysis of Speciation in Mimulus awarded by  National Science Foundation 2003 - 2010
  • DISSERTATION RESEARCH: The geographic mode, ecological mechanisms, as well as genetic basis of local adaptation and ecological reproductive isolation awarded by  National Science Foundation 2007 - 2010
  • DISSERTATION RESEARCH: Evolution of Copper Tolerance in Mimulus guttatus awarded by  National Science Foundation 2007 - 2010
  • DISSERTATION RESEARCH: Genetics and evolutionary ecology of a flower color diversification in Chilean Mimulus awarded by  National Science Foundation 2005 - 2008
  • DISSERTATION RESEARCH: Identification and characterization of incompatibility genes that contribute to postzygotic reproductive isolation between species of Mimulus awarded by  National Science Foundation 2004 - 2006
  • REU (Supplement): A genome-wide investigation of factors causing postzygotic isolation awarded by  National Science Foundation 2003 - 2004
  • A genome-wide investigation of factors causing postzygotic isolation between two Mimulus species awarded by  National Science Foundation 2000 - 2004
  • Dissertation Research: Ecological genetics of life-history evolution in Mimulus guttatus awarded by  National Science Foundation 2001 - 2003
  • Doctoral Dissertation: Barriers to genetic exchange between two species of Mimulus awarded by  National Science Foundation 2000 - 2002
• Publications & Artistic Works
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  Selected Publications

  • Academic Articles

    • Leinonen, Päivi H., Matti J. Salmela, Kathleen Greenham, C Robertson McClung, and John H. Willis. “Populations Are Differentiated in Biological Rhythms without Explicit Elevational Clines in the Plant Mimulus laciniatus.” Journal of Biological Rhythms 35, no. 5 (October 2020): 452–64. https://doi.org/10.1177/0748730420936408.
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    • Coughlan, Jenn M., Maya Wilson Brown, and John H. Willis. “Patterns of Hybrid Seed Inviability in the Mimulus guttatus sp. Complex Reveal a Potential Role of Parental Conflict in Reproductive Isolation.” Current Biology : Cb 30, no. 1 (January 2020): 83-93.e5. https://doi.org/10.1016/j.cub.2019.11.023.
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    • Flores-Vergara, Miguel A., Elen Oneal, Mario Costa, Gonzalo Villarino, Caitlyn Roberts, Maria Angels De Luis Balaguer, Sílvia Coimbra, John Willis, and Robert G. Franks. “Developmental Analysis of Mimulus Seed Transcriptomes Reveals Functional Gene Expression Clusters and Four Imprinted, Endosperm-Expressed Genes.” Frontiers in Plant Science 11 (January 2020): 132. https://doi.org/10.3389/fpls.2020.00132.
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    • Lowry, D. B., J. M. Sobel, A. L. Angert, T. L. Ashman, R. L. Baker, B. K. Blackman, Y. Brandvain, et al. “The case for the continued use of the genus name Mimulus for all monkeyflowers.” Taxon 68, no. 4 (August 1, 2019): 617–23. https://doi.org/10.1002/tax.12122.
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    • Coughlan, Jennifer M., and John H. Willis. “Dissecting the role of a large chromosomal inversion in life history divergence throughout the Mimulus guttatus species complex.” Molecular Ecology 28, no. 6 (March 2019): 1343–57. https://doi.org/10.1111/mec.14804.
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    • Selby, Jessica P., and John H. Willis. “Major QTL controls adaptation to serpentine soils in Mimulus guttatus.” Molecular Ecology 27, no. 24 (December 18, 2018): 5073–87. https://doi.org/10.1111/mec.14922.
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    • Toll, Katherine, and John H. Willis. “Hybrid inviability and differential submergence tolerance drive habitat segregation between two congeneric monkeyflowers.” Ecology 99, no. 12 (December 2018): 2776–86. https://doi.org/10.1002/ecy.2529.
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    • Troth, Ashley, Joshua R. Puzey, Rebecca S. Kim, John H. Willis, and John K. Kelly. “Selective trade-offs maintain alleles underpinning complex trait variation in plants.” Science (New York, N.Y.) 361, no. 6401 (August 2018): 475–78. https://doi.org/10.1126/science.aat5760.
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    • Ferris, Kathleen G., and John H. Willis. “Differential adaptation to a harsh granite outcrop habitat between sympatric Mimulus species.” Evolution; International Journal of Organic Evolution 72, no. 6 (June 2018): 1225–41. https://doi.org/10.1111/evo.13476.
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    • Barnett, Laryssa L., Ashley Troth, and John H. Willis. “Plastic breeding system response to day length in the California wildflower Mimulus douglasii.” American Journal of Botany 105, no. 4 (April 25, 2018): 779–87. https://doi.org/10.1002/ajb2.1063.
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    • Aeschbacher, Simon, Jessica P. Selby, John H. Willis, and Graham Coop. “Population-genomic inference of the strength and timing of selection against gene flow.” Proceedings of the National Academy of Sciences of the United States of America 114, no. 27 (July 2017): 7061–66. https://doi.org/10.1073/pnas.1616755114.
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    • Greenham, Kathleen, Ping Lou, Joshua R. Puzey, Ganesh Kumar, Cindy Arnevik, Hany Farid, John H. Willis, and C Robertson McClung. “Geographic Variation of Plant Circadian Clock Function in Natural and Agricultural Settings.” Journal of Biological Rhythms 32, no. 1 (February 2017): 26–34. https://doi.org/10.1177/0748730416679307.
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    • Ferris, Kathleen G., Laryssa L. Barnett, Benjamin K. Blackman, and John H. Willis. “The genetic architecture of local adaptation and reproductive isolation in sympatry within the Mimulus guttatus species complex.” Molecular Ecology 26, no. 1 (January 2017): 208–24. https://doi.org/10.1111/mec.13763.
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    • Fierst, J. L., D. A. Murdock, C. Thanthiriwatte, J. H. Willis, and P. C. Phillips. “Metagenomeassembled draft genome sequence of a novel microbial Stenotrophomonas maltophilia strain isolated from Caenorhabditis remanei tissue.” Genome Announcements 5, no. 7 (January 1, 2017). https://doi.org/10.1128/genomeA.01646-16.
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    • Puzey, Joshua R., John H. Willis, and John K. Kelly. “Population structure and local selection yield high genomic variation in Mimulus guttatus.” Molecular Ecology 26, no. 2 (January 2017): 519–35. https://doi.org/10.1111/mec.13922.
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    • Oneal, Elen, John H. Willis, and Robert G. Franks. “Disruption of endosperm development is a major cause of hybrid seed inviability between Mimulus guttatus and Mimulus nudatus.” The New Phytologist 210, no. 3 (May 2016): 1107–20. https://doi.org/10.1111/nph.13842.
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    • Lee, Young Wha, Lila Fishman, John K. Kelly, and John H. Willis. “A Segregating Inversion Generates Fitness Variation in Yellow Monkeyflower (Mimulus guttatus).” Genetics 202, no. 4 (April 2016): 1473–84. https://doi.org/10.1534/genetics.115.183566.
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    • Fierst, J. L., J. H. Willis, C. G. Thomas, W. Wang, R. M. Reynolds, T. E. Ahearne, A. D. Cutter, and P. C. Phillips. “Erratum to: Reproductive Mode and the Evolution of Genome Size and Structure in Caenorhabditis Nematodes (PLoS Genet, (2015), 11, 9).” Plos Genetics 11, no. 9 (September 22, 2015). https://doi.org/10.1371/journal.pgen.1005497.
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    • Ferris, Kathleen G., Tullia Rushton, Anna B. Greenlee, Katherine Toll, Benjamin K. Blackman, and John H. Willis. “Leaf shape evolution has a similar genetic architecture in three edaphic specialists within the Mimulus guttatus species complex.” Annals of Botany 116, no. 2 (August 2015): 213–23. https://doi.org/10.1093/aob/mcv080.
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    • Fierst, Janna L., John H. Willis, Cristel G. Thomas, Wei Wang, Rose M. Reynolds, Timothy E. Ahearne, Asher D. Cutter, and Patrick C. Phillips. “Reproductive Mode and the Evolution of Genome Size and Structure in Caenorhabditis Nematodes.” Plos Genetics 11, no. 6 (June 26, 2015): e1005323. https://doi.org/10.1371/journal.pgen.1005323.
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    • Friedman, Jannice, Alex D. Twyford, John H. Willis, and Benjamin K. Blackman. “The extent and genetic basis of phenotypic divergence in life history traits in Mimulus guttatus.” Molecular Ecology 24, no. 1 (January 2015): 111–22. https://doi.org/10.1111/mec.13004.
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    • Ferris, Kathleen G., Jason P. Sexton, and John H. Willis. “Speciation on a local geographic scale: the evolution of a rare rock outcrop specialist in Mimulus.” Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 369, no. 1648 (August 2014). https://doi.org/10.1098/rstb.2014.0001.
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    • Oneal, Elen, David B. Lowry, Kevin M. Wright, Zhirui Zhu, and John H. Willis. “Divergent population structure and climate associations of a chromosomal inversion polymorphism across the Mimulus guttatus species complex.” Molecular Ecology 23, no. 11 (June 2014): 2844–60. https://doi.org/10.1111/mec.12778.
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    • Fishman, L., J. H. Willis, C. A. Wu, and Y. -. W. Lee. “Comparative linkage maps suggest that fission, not polyploidy, underlies near-doubling of chromosome number within monkeyflowers (Mimulus; Phrymaceae).” Heredity 112, no. 5 (May 2014): 562–68. https://doi.org/10.1038/hdy.2013.143.
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    • Modliszewski, Jennifer L., and John H. Willis. “Near-absent levels of segregational variation suggest limited opportunities for the introduction of genetic variation via homeologous chromosome pairing in synthetic neoallotetraploid Mimulus.” G3 (Bethesda, Md.) 4, no. 3 (March 20, 2014): 509–22. https://doi.org/10.1534/g3.113.008441.
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    • Flagel, Lex E., John H. Willis, and Todd J. Vision. “The standing pool of genomic structural variation in a natural population of Mimulus guttatus.” Genome Biology and Evolution 6, no. 1 (January 2014): 53–64. https://doi.org/10.1093/gbe/evt199.
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    • Hellsten, Uffe, Kevin M. Wright, Jerry Jenkins, Shengqiang Shu, Yaowu Yuan, Susan R. Wessler, Jeremy Schmutz, John H. Willis, and Daniel S. Rokhsar. “Fine-scale variation in meiotic recombination in Mimulus inferred from population shotgun sequencing.” Proceedings of the National Academy of Sciences of the United States of America 110, no. 48 (November 13, 2013): 19478–82. https://doi.org/10.1073/pnas.1319032110.
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    • Friedman, Jannice, and John H. Willis. “Major QTLs for critical photoperiod and vernalization underlie extensive variation in flowering in the Mimulus guttatus species complex.” The New Phytologist 199, no. 2 (July 2013): 571–83. https://doi.org/10.1111/nph.12260.
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    • Wright, Kevin M., Deborah Lloyd, David B. Lowry, Mark R. Macnair, and John H. Willis. “Indirect evolution of hybrid lethality due to linkage with selected locus in Mimulus guttatus.” Plos Biology 11, no. 2 (January 2013): e1001497. https://doi.org/10.1371/journal.pbio.1001497.
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    • Sweigart, A. L., and J. H. Willis. “Molecular evolution and genetics of postzygotic reproductive isolation in plants.” F1000 Biology Reports 4, no. 1 (December 3, 2012). https://doi.org/10.3410/B4-23.
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    • Modliszewski, Jennifer L., and John H. Willis. “Allotetraploid Mimulus sookensis are highly interfertile despite independent origins.” Molecular Ecology 21, no. 21 (November 2012): 5280–98. https://doi.org/10.1111/j.1365-294x.2012.05706.x.
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    • Mojica, Julius P., Young Wha Lee, John H. Willis, and John K. Kelly. “Spatially and temporally varying selection on intrapopulation quantitative trait loci for a life history trade-off in Mimulus guttatus.” Molecular Ecology 21, no. 15 (August 2012): 3718–28. https://doi.org/10.1111/j.1365-294x.2012.05662.x.
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    • Strasburg, Jared L., Natasha A. Sherman, Kevin M. Wright, Leonie C. Moyle, John H. Willis, and Loren H. Rieseberg. “What can patterns of differentiation across plant genomes tell us about adaptation and speciation?” Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 367, no. 1587 (February 2012): 364–73. https://doi.org/10.1098/rstb.2011.0199.
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    • Lowry, David B., Calvin C. Sheng, Zhirui Zhu, Thomas E. Juenger, Brett Lahner, David E. Salt, and John H. Willis. “Mapping of ionomic traits in Mimulus guttatus reveals Mo and Cd QTLs that colocalize with MOT1 homologues.” Plos One 7, no. 1 (January 24, 2012): e30730. https://doi.org/10.1371/journal.pone.0030730.
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    • Benedict, B. G., J. L. Modliszewski, A. L. Sweigart, N. H. Martin, F. R. Ganders, and J. H. Willis. “Mimulus sookensis (Phyrmaceae), a new allotetraploid species derived from Mimulus guttatus and Mimulus nasutus.” Madrono 59 (2012): 29–43.
    • Lowry, David B., Calvin C. Sheng, Jesse R. Lasky, and John H. Willis. “Five anthocyanin polymorphisms are associated with an R2R3-MYB cluster in Mimulus guttatus (Phrymaceae).” American Journal of Botany 99, no. 1 (January 2012): 82–91. https://doi.org/10.3732/ajb.1100285.
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    • Moran, Emily V., John Willis, and James S. Clark. “Genetic evidence for hybridization in red oaks (Quercus sect. Lobatae, Fagaceae).” American Journal of Botany 99, no. 1 (January 2012): 92–100. https://doi.org/10.3732/ajb.1100023.
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    • Mower, Jeffrey P., Andrea L. Case, Eric R. Floro, and John H. Willis. “Evidence against equimolarity of large repeat arrangements and a predominant master circle structure of the mitochondrial genome from a monkeyflower (Mimulus guttatus) lineage with cryptic CMS.” Genome Biology and Evolution 4, no. 5 (January 2012): 670–86. https://doi.org/10.1093/gbe/evs042.
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    • Scoville, Alison G., Young Wha Lee, John H. Willis, and John K. Kelly. “Explaining the heritability of an ecologically significant trait in terms of individual quantitative trait loci.” Biology Letters 7, no. 6 (December 2011): 896–98. https://doi.org/10.1098/rsbl.2011.0409.
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    • Magwene, Paul M., John H. Willis, and John K. Kelly. “The statistics of bulk segregant analysis using next generation sequencing.” Plos Comput Biol 7, no. 11 (November 2011): e1002255. https://doi.org/10.1371/journal.pcbi.1002255.
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    • Anderson, Jill T., John H. Willis, and Thomas Mitchell-Olds. “Evolutionary genetics of plant adaptation.” Trends in Genetics : Tig 27, no. 7 (July 2011): 258–66. https://doi.org/10.1016/j.tig.2011.04.001.
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    • Cooley, Arielle M., Jennifer L. Modliszewski, Megan L. Rommel, and John H. Willis. “Gene duplication in Mimulus underlies parallel floral evolution via independent trans-regulatory changes.” Current Biology : Cb 21, no. 8 (April 7, 2011): 700–704. https://doi.org/10.1016/j.cub.2011.03.028.
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    • Willis, J. H., L. Fishman, and A. Sweigart. “The ecology and genetics of Mimulus.” Annual Review of Ecology, Evolution, and Systematics 42 (January 1, 2011). https://doi.org/10.1146/annurev-ecolsys-102710-145106.
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    • Martin, N. H., and J. H. Willis. “Erratum: Geographical variation in postzygotic isolation and its genetic basis within and between two Mimulus species (Philosophical Transactions of the Royal Society B: Biological Sciences (2010) 365 (2469-2478) DOI: 10.1098/rstb.2010.0030).” Philosophical Transactions of the Royal Society B: Biological Sciences 365, no. 1555 (October 12, 2010): 3261. https://doi.org/10.1098/rstb.2010.0257.
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    • Lowry, David B., and John H. Willis. “A widespread chromosomal inversion polymorphism contributes to a major life-history transition, local adaptation, and reproductive isolation.” Plos Biology 8, no. 9 (September 28, 2010). https://doi.org/10.1371/journal.pbio.1000500.
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    • Martin, Noland H., and John H. Willis. “Geographical variation in postzygotic isolation and its genetic basis within and between two Mimulus species.” Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 365, no. 1552 (August 2010): 2469–78. https://doi.org/10.1098/rstb.2010.0030.
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    • Hall, M. C., D. B. Lowry, and J. H. Willis. “Is local adaptation in Mimulus guttatus caused by trade-offs at individual loci?” Molecular Ecology 19, no. 13 (July 2010): 2739–53. https://doi.org/10.1111/j.1365-294x.2010.04680.x.
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    • Wu, Carrie A., David B. Lowry, Laura I. Nutter, and John H. Willis. “Natural variation for drought-response traits in the Mimulus guttatus species complex.” Oecologia 162, no. 1 (January 2010): 23–33. https://doi.org/10.1007/s00442-009-1448-0.
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    • Charlesworth, Deborah, and John H. Willis. “The genetics of inbreeding depression.” Nature Reviews. Genetics 10, no. 11 (November 2009): 783–96. https://doi.org/10.1038/nrg2664.
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    • Cooley, Arielle M., and John H. Willis. “Genetic divergence causes parallel evolution of flower color in Chilean Mimulus.” The New Phytologist 183, no. 3 (August 2009): 729–39. https://doi.org/10.1111/j.1469-8137.2009.02858.x.
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    • Lowry, David B., Megan C. Hall, David E. Salt, and John H. Willis. “Genetic and physiological basis of adaptive salt tolerance divergence between coastal and inland Mimulus guttatus.” The New Phytologist 183, no. 3 (August 2009): 776–88. https://doi.org/10.1111/j.1469-8137.2009.02901.x.
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    • Scoville, Alison, Young Wha Lee, John H. Willis, and John K. Kelly. “Contribution of chromosomal polymorphisms to the G-matrix of Mimulus guttatus.” The New Phytologist 183, no. 3 (August 2009): 803–15. https://doi.org/10.1111/j.1469-8137.2009.02947.x.
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    • Willis, J. H. “Origin of species in overdrive.” Science 323 (2009): 350–51.
    • Willis, John H. “Genetics. Origin of species in overdrive.” Science (New York, N.Y.) 323, no. 5912 (January 2009): 350–51. https://doi.org/10.1126/science.1169442.
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    • Lowry, David B., Jennifer L. Modliszewski, Kevin M. Wright, Carrie A. Wu, and John H. Willis. “Review. The strength and genetic basis of reproductive isolating barriers in flowering plants.” Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 363, no. 1506 (September 2008): 3009–21. https://doi.org/10.1098/rstb.2008.0064.
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    • Lowry, David B., R Cotton Rockwood, and John H. Willis. “Ecological reproductive isolation of coast and inland races of Mimulus guttatus.” Evolution; International Journal of Organic Evolution 62, no. 9 (September 2008): 2196–2214. https://doi.org/10.1111/j.1558-5646.2008.00457.x.
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    • McDaniel, Stuart F., John H. Willis, and A Jonathan Shaw. “The genetic basis of developmental abnormalities in interpopulation hybrids of the moss Ceratodon purpureus.” Genetics 179, no. 3 (July 2008): 1425–35. https://doi.org/10.1534/genetics.107.086314.
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    • Case, Andrea L., and John H. Willis. “Hybrid male sterility in Mimulus (Phrymaceae) is associated with a geographically restricted mitochondrial rearrangement.” Evolution; International Journal of Organic Evolution 62, no. 5 (May 2008): 1026–39. https://doi.org/10.1111/j.1558-5646.2008.00360.x.
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    • Cooley, A. M., G. Carvallo, and J. H. Willis. “Is floral diversification associated with pollinator divergence? Flower shape, flower colour and pollinator preference in Chilean Mimulus.” Annals of Botany 101, no. 5 (April 2008): 641–50. https://doi.org/10.1093/aob/mcn014.
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    • Sweigart, A. L., N. H. Martin, and J. H. Willis. “Patterns of nucleotide variation and reproductive isolation between a Mimulus allotetraploid and its progenitor species.” Molecular Ecology 17, no. 8 (April 2008): 2089–2100. https://doi.org/10.1111/j.1365-294x.2008.03707.x.
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    • Wu, C. A., D. B. Lowry, A. M. Cooley, K. M. Wright, Y. W. Lee, and J. H. Willis. “Mimulus is an emerging model system for the integration of ecological and genomic studies.” Heredity 100, no. 2 (February 2008): 220–30. https://doi.org/10.1038/sj.hdy.6801018.
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    • Fishman, Lila, and John H. Willis. “Pollen limitation and natural selection on floral characters in the yellow monkeyflower, Mimulus guttatus.” The New Phytologist 177, no. 3 (January 2008): 802–10. https://doi.org/10.1111/j.1469-8137.2007.02265.x.
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    • Mitchell-Olds, Thomas, John H. Willis, and David B. Goldstein. “Which evolutionary processes influence natural genetic variation for phenotypic traits?” Nature Reviews. Genetics 8, no. 11 (November 2007): 845–56. https://doi.org/10.1038/nrg2207.
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    • McDaniel, Stuart F., John H. Willis, and A Jonathan Shaw. “A linkage map reveals a complex basis for segregation distortion in an interpopulation cross in the moss Ceratodon purpureus.” Genetics 176, no. 4 (August 2007): 2489–2500. https://doi.org/10.1534/genetics.107.075424.
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    • Rieseberg, Loren H., and John H. Willis. “Plant speciation.” Science (New York, N.Y.) 317, no. 5840 (August 2007): 910–14. https://doi.org/10.1126/science.1137729.
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    • Martin, Noland H., and John H. Willis. “Ecological divergence associated with mating system causes nearly complete reproductive isolation between sympatric Mimulus species.” Evolution; International Journal of Organic Evolution 61, no. 1 (January 2007): 68–82. https://doi.org/10.1111/j.1558-5646.2007.00006.x.
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    • Mitchell Olds, T., J. H. Willis, and D. Goldstein. “What evolutionary processes influence natural genetic variation for phenotypic traits?” Nature Reviews Genetics 8 (2007): 845–56.
    • Sweigart, Andrea L., Amanda R. Mason, and John H. Willis. “Natural variation for a hybrid incompatibility between two species of Mimulus.” Evolution; International Journal of Organic Evolution 61, no. 1 (January 2007): 141–51. https://doi.org/10.1111/j.1558-5646.2007.00011.x.
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    • Hall, Megan C., and John H. Willis. “Divergent selection on flowering time contributes to local adaptation in Mimulus guttatus populations.” Evolution; International Journal of Organic Evolution 60, no. 12 (December 2006): 2466–77. https://doi.org/10.1111/j.0014-3820.2006.tb01882.x.
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    • Aagaard, Jan E., John H. Willis, and Patrick C. Phillips. “Relaxed selection among duplicate floral regulatory genes in Lamiales.” Journal of Molecular Evolution 63, no. 4 (October 4, 2006): 493–503. https://doi.org/10.1007/s00239-005-0306-x.
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    • Fishman, Lila, and John H. Willis. “A cytonuclear incompatibility causes anther sterility in Mimulus hybrids.” Evolution; International Journal of Organic Evolution 60, no. 7 (July 2006): 1372–81. https://doi.org/10.1554/05-708.1.
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    • Sweigart, Andrea L., Lila Fishman, and John H. Willis. “A simple genetic incompatibility causes hybrid male sterility in mimulus.” Genetics 172, no. 4 (April 2006): 2465–79. https://doi.org/10.1534/genetics.105.053686.
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    • Hall, Megan C., Christopher J. Basten, and John H. Willis. “Pleiotropic quantitative trait loci contribute to population divergence in traits associated with life-history variation in Mimulus guttatus.” Genetics 172, no. 3 (March 2006): 1829–44. https://doi.org/10.1534/genetics.105.051227.
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    • Aagaard, Jan E., Richard G. Olmstead, John H. Willis, and Patrick C. Phillips. “Duplication of floral regulatory genes in the Lamiales.” American Journal of Botany 92, no. 8 (August 2005): 1284–93. https://doi.org/10.3732/ajb.92.8.1284.
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    • Hall, Megan C., and John H. Willis. “Transmission ratio distortion in intraspecific hybrids of Mimulus guttatus: implications for genomic divergence.” Genetics 170, no. 1 (May 2005): 375–86. https://doi.org/10.1534/genetics.104.038653.
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    • Fishman, Lila, and John H. Willis. “A novel meiotic drive locus almost completely distorts segregation in mimulus (monkeyflower) hybrids.” Genetics 169, no. 1 (January 2005): 347–53. https://doi.org/10.1534/genetics.104.032789.
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    • Sweigart, A. L., and J. H. Willis. “Patterns of nucleotide diversity are affected by mating system and asymmetric introgression in two species of Mimulus.” Evolution 57 (November 2003): 2490–2506.
    • Sweigart, Andrea L., and John H. Willis. “Patterns of nucleotide diversity in two species of Mimulus are affected by mating system and asymmetric introgression.” Evolution; International Journal of Organic Evolution 57, no. 11 (November 2003): 2490–2506. https://doi.org/10.1111/j.0014-3820.2003.tb01494.x.
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    • Fishman, Lila, Alan J. Kelly, and John H. Willis. “Minor quantitative trait loci underlie floral traits associated with mating system divergence in Mimulus.” Evolution; International Journal of Organic Evolution 56, no. 11 (November 2002): 2138–55. https://doi.org/10.1111/j.0014-3820.2002.tb00139.x.
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    • Fishman, L., A. J. Kelly, and J. H. Willis. “Minor QTLs underlie floral characters associated with mating system divergence in Mimulus.” Evolution 56 (2002): 2138–55.
    • Kelly, J. K., and J. H. Willis. “A manipulative experiment to estimate biparental inbreeding in monkeyflowers.” International Journal of Plant Sciences 163, no. 4 (January 1, 2002): 575–79. https://doi.org/10.1086/340735.
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    • Fishman, L., A. J. Kelly, E. Morgan, and J. H. Willis. “A genetic map in the Mimulus guttatus species complex reveals transmission ratio distortion due to heterospecific interactions.” Genetics 159, no. 4 (December 2001): 1701–16.
    • Fishman, L., and J. H. Willis. “Evidence for Dobzhansky-Muller incompatibilites contributing to the sterility of hybrids between Mimulus guttatus and M. nasutus.” Evolution; International Journal of Organic Evolution 55, no. 10 (October 2001): 1932–42. https://doi.org/10.1111/j.0014-3820.2001.tb01311.x.
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    • Kelly, J. K., and J. H. Willis. “Deleterious mutations and genetic variation for flower size in Mimulus guttatus.” Evolution; International Journal of Organic Evolution 55, no. 5 (May 2001): 937–42. https://doi.org/10.1554/0014-3820(2001)055[0937:dmagvf]2.0.co;2.
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    • Willis, J. H. “Inbreeding load, average dominance and the mutation rate for mildly deleterious alleles in Mimulus guttatus.” Genetics 153, no. 4 (December 1999): 1885–98.
    • Schultz, S. T., M. Lynch, and J. H. Willis. “Spontaneous deleterious mutation in Arabidopsis thaliana.” Proceedings of the National Academy of Sciences of the United States of America 96, no. 20 (September 1999): 11393–98. https://doi.org/10.1073/pnas.96.20.11393.
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    • Willis, J. H. “The contribution of male-sterility mutations to inbreeding depression in Mimulus guttatus.” Heredity 83 ( Pt 3) (September 1999): 337–46. https://doi.org/10.1038/sj.hdy.6885790.
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    • Lynch, M., J. Blanchard, D. Houle, T. Kibota, S. Schultz, L. Vassilieva, and J. H. Willis. “Spontaneous deleterious mutation.” Evolution 53 (1999): 645–63.
    • Lynch, M., J. Blanchard, D. Houle, T. Kibota, S. Schultz, L. Vassilieva, and J. Willis. “Perspective: Spontaneous deleterious mutation.” Evolution 53, no. 3 (January 1, 1999): 645–63. https://doi.org/10.1111/j.1558-5646.1999.tb05361.x.
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    • Schultz, S. T., M. Lynch, and J. H. Willis. “The genomic mutation rate for fitness in Arabidopsis thaliana.” Procedings of the National Academy of Science, Usa 96 (1999): 11393–98.
    • Sweigart, A., K. Karoly, A. Jones, and J. H. Willis. “The distribution of individual inbreeding coefficients and pairwise relatedness in a population of Mimulus guttatus.” Heredity 83, no. 5 (January 1, 1999): 625–32. https://doi.org/10.1038/sj.hdy.6886020.
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    • Willis, J. H. “The role of genes of large effect on inbreeding depression in Mimulus guttatus.” Evolution 53, no. 6 (January 1, 1999): 1678–91. https://doi.org/10.1111/j.1558-5646.1999.tb04553.x.
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    • Kelly, A. J., and J. H. Willis. “Polymorphic microsatellite loci in Mimulus guttatus and related species.” Molecular Ecology 7, no. 6 (January 1, 1998): 769–74. https://doi.org/10.1046/j.1365-294x.1998.00328.x.
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    • Willis, J. H. “Measures of phenotypic selection are biased by partial inbreeding.” Evolution 50, no. 4 (January 1, 1996): 1501–11. https://doi.org/10.1111/j.1558-5646.1996.tb03923.x.
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    • Schultz, S. T., and J. H. Willis. “Individual variation in inbreeding depression: the roles of inbreeding history and mutation.” Genetics 141, no. 3 (November 1995): 1209–23.
    • Gimelfarb, A., and J. H. Willis. “Linearity Versus nonlinearity of offspring-parent regression: an experimental study of Drosophila melanogaster.” Genetics 138, no. 2 (October 1994): 343–52.
    • Gimelfarb, A., and J. H. Willis. “Linearity vs. nonlinearity of offspring-parent regression: experimental study.” Genetics 138 (1994): 343–52.
    • Willis, J. H. “Effects of different levels of inbreeding on fitness components in Mimulus guttatus.” Evolution 47, no. 3 (January 1, 1993): 864–76. https://doi.org/10.1111/j.1558-5646.1993.tb01240.x.
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    • Willis, J. H. “Partial self-fertilization and inbreeding depression in two populations of mimulus guttatus.” Heredity 71, no. 2 (January 1, 1993): 145–54. https://doi.org/10.1038/hdy.1993.118.
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    • Willis, J. H., and H. A. Orr. “Increased heritable variation following population bottlenecks: The role of dominance.” Evolution 47 (1993): 949–57.
    • Willis, J. H. “Genetic analysis of inbreeding depression caused by chlorophyll-deficient lethals in mimulus guttatus.” Heredity 69, no. 6 (January 1, 1992): 562–72. https://doi.org/10.1038/hdy.1992.172.
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    • Willis, J. H., J. A. Coyne, and M. Kirkpatrick. “Can one predict the evolution of quantitative traits without genetics?” Evolution 45 (1991): 441–44.
    • Bergelson, J. M., J. H. Willis, and P. E. Robakiewicz. “Variance in search time: Do groups always reduce risk?” Animal Behaviour 34, no. PART 1 (January 1, 1986): 289–91. https://doi.org/10.1016/0003-3472(86)90036-9.
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• Teaching & Mentoring
• 

  Recent Courses

  • BIOLOGY 202L: Gateway to Biology: Genetics and Evolution 2020
  • BIOLOGY 293: Research Independent Study 2020
  • BIOLOGY 450S: Genomics of Adaptation: A Modern Look at Evolution 2020
  • BIOLOGY 791T: Tutorial 2020
  • BIOLOGY 792: Research 2020
  • UPGEN 778B: University Program in Genetics and Genomics Biological Solutions Module Il 2020
  • BIOLOGY 202L: Gateway to Biology: Genetics and Evolution 2019
  • BIOLOGY 450S: Genomics of Adaptation: A Modern Look at Evolution 2019
  • BIOLOGY 728A: University Program in Genetics and Genomics Biological Solutions Module I 2019
  • BIOLOGY 791T: Tutorial 2019
  • CMB 778A: University Program in Genetics and Genomics Biological Solutions Module I 2019
  • MGM 778A: University Program in Genetics and Genomics Biological Solutions Module I 2019
  • UPGEN 778A: University Program in Genetics and Genomics Biological Solutions Module I 2019
  • BIOLOGY 202L: Gateway to Biology: Genetics and Evolution 2018
  • BIOLOGY 293: Research Independent Study 2018
  • BIOLOGY 391: Independent Study: Advanced Topics 2018
  • BIOLOGY 450S: Genomics of Adaptation: A Modern Look at Evolution 2018
  • BIOLOGY 493: Research Independent Study 2018
  • BIOLOGY 728A: University Program in Genetics and Genomics Biological Solutions Module I 2018
  • BIOLOGY 791T: Tutorial 2018
  • BIOLOGY 841: Ecological Perspectives: Evolution to Ecosystems 2018
  • CMB 778A: University Program in Genetics and Genomics Biological Solutions Module I 2018
  • ENVIRON 841: Ecological Perspectives: Evolution to Ecosystems 2018
  • EVANTH 741: Ecological Perspectives: Evolution to Ecosystems 2018
  • MGM 778A: University Program in Genetics and Genomics Biological Solutions Module I 2018
  • UPE 701: Ecological Perspectives: Evolution to Ecosystems 2018
  • UPGEN 778A: University Program in Genetics and Genomics Biological Solutions Module I 2018
• Scholarly, Clinical, & Service Activities
• 

  Presentations & Appearances

  • Departmental Seminar, Department of Molecular and Computational Biology, University of Southern California. October 25, 2013  2013
  • Symposium Speaker, American Genetic Association Annual Symposium, A Discussion on the Origin of Species, Cornell University. July 21, 2013  2013
  • Graduate Student Invited Departmental Seminar, Department of Ecology and Evolution, University of Chicago. April 1, 2013  2013
  • Note: Due to a family emergency I had to cancel three invited seminars during summer 2012, including a symposium in Scotland that I co-organized. I also had to cancel a fall 2012 invitation due to conflict with teaching schedule.. December 29, 2012  2012
  • Speaker at Symposium on Micro-Evo-Devo: Flower Form and Function sponsored by NSF Research Coordination Network. May 13, 2012  2012
  • Departmental Seminar, Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara. April 16, 2012  2012
  • Plenary Lecture, Ecological Genetics Group Meeting. April 11, 2012  2012
  • Ecological Genetics Seminar, Department of Biology, University of Oulu. March 2, 2012  2012
  • Departmental Seminar, Department of Biology, University of Oulu. March 1, 2012  2012
  • Plenary Talk, Marie Curie Symposium, Progress in Understanding the Origins of Biodiversity. February 27, 2012  2012
  • Invited speaker, Department of Biology, University of Virginia, Charlottesville, VA. November 11, 2011  2011
  • Invited speaker, Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ. November 7, 2011  2011
  • Keynote speaker, Evolutionary Biology Forum, Institute of Botany, Chinese Academy of Sciences, Beijing, China. October 13, 2011  2011
  • Invited speaker, Symposium on Frontiers in Plant Biology, Beijing Normal University, Beijing, China. October 9, 2011  2011
  • Invited speaker, Cornell Center for Comparative and Population Genomics, Cornell University, Ithaca, NY. October 3, 2011  2011
  • Invited speaker, Symposium on Molecular Tools and Ecology, Annual Meeting of the Ecological Society of American, Austin, TX. August 9, 2011  2011
  • Invited speaker, 18th Biennial Penn State Plant Biology Symposium on Plant Evolutionary Genomics, Penn State University, University Park, PA. May 20, 2011  2011
  • Invited speaker, Quantitative Trait Locus Mapping Workshop, Department of Ecology and Genetics, Uppsala University, Uppsala, Sweden. April 7, 2011  2011
  • Invited Speaker, Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway. February 10, 2011  2011
  • Invited Speaker, Session on Speciation Genomics, Plant and Animal Genome Conference 2011, San Diego, CA. January 15, 2011  2011
  • Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada. December 17, 2010  2010
  • Invited Speaker, Session on Natural Variation and Adaptation, XVII Congress of the Federation of European Societies of Plant Biology, Valencia, Spain. July 6, 2010  2010
  • Invited Speaker for Symposium on Adaptive Responses During Plant Development and Evolution, Wenner-Gren Foundation, Kristineberg/Fiskebäckskil, Sweden. July 3, 2010  2010
  • Department of Plant Developmental Biology, Max Planck Institute for Plant Breeding Research, Cologne, Germany. May 19, 2010  2010
  • Student-Invited Speaker for Departmental Seminar Series, Population Biology Graduate Program, University of California, Davis, Davis, CA. April 23, 2010  2010
  • Student-Invited Speaker for Workshop on Genomics and Evolution, Population Biology Graduate Program, University of California, Davis, Davis, CA. April 22, 2010  2010
  • Department of Genetics, North Carolina State University, Raleigh, NC. April 12, 2010  2010
  • Department of Zoology. December 9, 2009  2009
  • Invited Speaker for Royal Society Discussion Meeting: Genetics and the Causes of Evolution: 150 Years of Progress Since Darwin. November 12, 2009  2009
  • Keynote Speaker; Symposium on Molecular Evolution II: Speciation. October 27, 2009  2009
  • Colloquium Speaker; Max-Planck-Institutes for Developmental Biology and for Biological Cybernetics and the Friedrich-Miescher Laboratory. June 17, 2009  2009
  • Invited Speaker for Symposium on Molecular Basis of Speciation; 2009 Annual Meeting of the Society for Molecular Biology and Evolution. June 4, 2009  2009
  • Invited Plant Reproduction and Mating Systems Symposium Speaker, Canadian Society for Ecology and Evolution. May 16, 2009  2009
  • Department of Biology. April 10, 2009  2009
  • Department of Biology. April 9, 2009  2009
  • 2009 JGI Users Meeting. March 26, 2009  2009
  • Department of Horticulture and Landscape Architecture. March 19, 2009  2009
  • Department of Biology. March 5, 2009  2009
  • Opening talk: iPlant Collaborative Grand Challenge Workshop on Plant Adaptation; Biosphere2, University of Arizona; Tucson, AZ. October 1, 2008  2008
  • 19th New Phytologist Symposium - Physiological Sculpture of Plants: new visions and capabilities for crop development; Timberline Lodge; Mount Hood, OR. September 18, 2008  2008
  • Institute for Biodiversity and Ecosystem Dynamics; University of Amsterdam; Amsterdam, The Netherlands. June 26, 2008  2008
  • Gatsby Foundation Meeting on the Future of Plant Evolutionary Genomics at The Royal Society; London, UK. June 19, 2008  2008
  • Invited Speaker, IDEG 2008 Symposium: Integrating Evolution, Development, & Genomics; University of California Berkeley; Berkeley, CA. May 30, 2008  2008
  • Evolutionary Biology; University of Wisconsin; Madison, WI. April 17, 2008  2008
  • Department of Genetics; University of Wisconsin; Madison, WI. April 16, 2008  2008
  • Keynote talk; iPlant Collaborative Kickoff; Cold Spring Harbor Laboratory; Cold Spring Harbor, NY;. April 8, 2008  2008
  • Department of Biology; University of Massachusetts Amhearst; Amhearst, MA. April 3, 2008  2008
  • Department of Biology; Indiana University; Bloomington, Indiana. March 28, 2008  2008
• 

  Service to the Profession

  • Panel Member, Organism-Environment Interactions Program, Division of Integrated Organismal Systems, National Science Foundation. October 13, 2010  2010

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