Kathleen M. Pryer | Scholars@Duke

Kathleen M. Pryer
Professor of Biology

My research focuses on understanding the evolutionary relationships of ancient land plants, especially ferns and horsetails, by integrating evidence from morphology, molecules (DNA sequence data from multiple genes), and the fossil record. I use an explicit phylogenetic framework to examine the morphological evolution of various sporophytic and gametophytic characters within vascular plants, and to gain insight into the evolution of various life history traits and the body plans that typify vascular plants. A phylogenetic perspective also informs my molecular evolutionary studies that attempt to elucidate why we observe remarkable rate heterogeneity in chloroplast genes in land plant phylogeny.

Current Appointments & Affiliations

Professor of Biology, Biology, Trinity College of Arts & Sciences 2011
Associate of the Duke Initiative for Science & Society, Duke Science & Society, Initiatives 2017

Contact Information

358 Bio Sci Bldg, Durham, NC 27708
Box 90338, Durham, NC 27708-0338
pryer@duke.edu
Pryer Lab Website

Background
Education, Training, & Certifications
- Ph.D., Duke University 1995
- M.S., University of Guelph (Canada) 1981
- B.S., McGill University (Canada) 1976
Duke Appointment History
- Associate Professor of Biology, Biology, Trinity College of Arts & Sciences 2005 - 2011
- Assistant Professor of Biology, Biology, Trinity College of Arts & Sciences 2001 - 2004
Recognition
In the News
- JAN 9, 2018 Duke Research Blog
  
  Kathleen Pryer: A Passion for the Little-Loved Fern
- JUL 2, 2015 Nature
  
  Kathleen Pryer comments: Plant collections left in the cold by cuts
- FEB 16, 2015 redOrbit
  
  Distant fern species create 'love child' after 60 million years
- FEB 13, 2015
  
  Distant Species Produce Love Child After 60-Millon-Year Breakup
- JUL 18, 2014 Durham Herald-Sun
  
  Duke researcher uses crowdfunding to raise money for fern genome project
- JUL 14, 2014 Scientific American
  
  How scientists uncovered Arctic clues to a past where a tiny fern changed the planet
- JUL 2, 2014
  
  Crowdfunding for Azolla Fern Research Hits Target
- JUN 20, 2014 The Economist
  
  Finding the genome of an extraordinary plant
- JUN 19, 2014
  
  Going Public With Research Funding
- JUN 13, 2014 Phys.org
  
  Tiny plant, big potential: Researchers raise money from public to sequence 'superorganism' genome
- MAY 30, 2014 The Globe and Mail
  
  Kathleen Pryer: This lowly fern has massive green potential
Awards & Honors
Expertise
Global Scholarship
- Research
  - Costa Rica (Country)
  - Mexico (Country)
Research
Selected Grants
- Digitization TCN: Collaborative Research: The Pteridological Collections Consortium: An integrative approach to pteridophyte diversity over the last 420 million years awarded by University of North Carolina - Chapel Hill 2018 - 2021
- DISSERTATION RESEARCH: Evolution and Function of Farina in the Desiccation-tolerant Notholaenid Ferns (Pteridaceae) awarded by National Science Foundation 2017 - 2021
- Oceans Apart: Assessing the roles of Vicariance and Long-distance Dispersal in the Widely Disjunct Fern Genus Cheilanthes (Pteridaceae) awarded by National Geographic Society 2019
- Collaborative Research: Digitization TCN: The Macroalgal Herbarium Consortium: Accessing 150 Years of Specimen Data to Understand Changes in the Marine/Aquatic Environment awarded by University of North Carolina - Chapel Hill 2013 - 2018
- Identifying those Pesky Mustards: The Boechera Digitization Project awarded by Andrew W. Mellon Foundation 2014 - 2017
- DISSERTATION RESEARCH: Early Evolution of Fungi and the Transition to a Terrestrial Lifestyle: Marine Habitats, the New Frontier awarded by National Science Foundation 2013 - 2017
- Collaborative Research: Exploring the Evolution of an Extreme Makeover in Ferns awarded by National Science Foundation 2012 - 2016
- DISSERTATION RESEARCH: Assessing the Evolutionary Significance of Recurrent Horizontal Gene Transfer of a Chimeric Photoreceptor in Ferns awarded by National Science Foundation 2014 - 2016
- DISSERTATION RESEARCH: Untangling the Cystopteris fragilis Complex: An Investigation of the Effects of Polploidy on Diversification Rates awarded by National Science Foundation 2011 - 2015
- DISSERTATION RESEARCH: Patterns of Gene Expression in Allopolyploid Taxa of Recurrent Origin: A Case Study of the Polypod Ferns awarded by National Science Foundation 2011 - 2014
- DISSERTATION RESEARCH: Subsexual Processes and the Origin of Genetic Variation in Asexual Ferns awarded by National Science Foundation 2011 - 2014
- Collaborative Research: The Roles of Polyploidy and Apomixis in Shaping the Diversity and Distribution of Cheilanthoid Ferns awarded by National Science Foundation 2007 - 2011
- A plan to rehouse and reorganize the vascular plant herbarium and botanical library at Duke University (DUKE) awarded by National Science Foundation 2007 - 2011
- Career: Reconciling patterns of phylogenetic rate heterogenity in ferns with morphology, ecology and life history awarded by National Science Foundation 2004 - 2010
- DISSERTATION RESEARCH: Evolution and diversification of epiphytic ferns awarded by National Science Foundation 2004 - 2007
- REU Site: Bioinformatic and Phylogenetic approaches to the study of plant and fungal biodiversity awarded by National Science Foundation 2004 - 2007
- Collaborative Research: Using phylogeny to investigate the history of morphological evolution in heterosporous ferns awarded by National Science Foundation 2001 - 2005
- Ontogeny and Phylogeny in the Aquatic Fern Family Marsileaceae awarded by National Science Foundation 1993 - 1995
Publications & Artistic Works
Selected Publications
- Academic Articles
  - Meineke, Emily K., et al. “Applying machine learning to investigate long-term insect-plant interactions preserved on digitized herbarium specimens.” Applications in Plant Sciences, vol. 8, no. 6, June 2020, p. e11369. Epmc, doi:10.1002/aps3.11369.
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  - Pryer, Kathleen M., et al. “Using computer vision on herbarium specimen images to discriminate among closely related horsetails (Equisetum).” Applications in Plant Sciences, vol. 8, no. 6, June 2020, p. e11372. Epmc, doi:10.1002/aps3.11372.
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  - Kao, Tzu-Tong, et al. “Infraspecific diversification of the star cloak fern (Notholaena standleyi) in the deserts of the United States and Mexico.” American Journal of Botany, vol. 107, no. 4, Apr. 2020, pp. 658–75. Epmc, doi:10.1002/ajb2.1461.
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  - Windham, Michael D., et al. “A step-by-step protocol for meiotic chromosome counts in flowering plants: A powerful and economical technique revisited.” Appl Plant Sci, vol. 8, no. 4, Apr. 2020, p. e11342. Pubmed, doi:10.1002/aps3.11342.
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  - George, Lisa O., et al. “Baja: A New Monospecific Genus Segregated from Cheilanthes s. l. (Pteridaceae).” Systematic Botany, vol. 44, no. 3, American Society of Plant Taxonomists, Sept. 2019, pp. 471–82. Crossref, doi:10.1600/036364419x15620113920536.
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  - Kao, Tzu-Tong, et al. “Low-copy nuclear sequence data confirm complex patterns of farina evolution in notholaenid ferns (Pteridaceae).” Molecular Phylogenetics and Evolution, vol. 138, Sept. 2019, pp. 139–55. Epmc, doi:10.1016/j.ympev.2019.05.016.
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  - Sigel, E. M., et al. “Expression level dominance and homeolog expression bias in recurrent origins of the allopolyploid fern polypodium hesperium.” American Fern Journal, vol. 109, no. 3, July 2019, pp. 224–47. Scopus, doi:10.1640/0002-8444-109.3.224.
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  - Eily, A. N., et al. “A first glimpse at genes important to the Azolla–Nostoc symbiosis.” Symbiosis, vol. 78, no. 2, June 2019, pp. 149–62. Scopus, doi:10.1007/s13199-019-00599-2.
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  - Yang, Emily J., et al. “NCP activates chloroplast transcription by controlling phytochrome-dependent dual nuclear and plastidial switches.” Nat Commun, vol. 10, no. 1, June 2019, p. 2630. Pubmed, doi:10.1038/s41467-019-10517-1.
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  - Li, Fay-Wei, et al. “Fern genomes elucidate land plant evolution and cyanobacterial symbioses.” Nature Plants, vol. 4, no. 7, July 2018, pp. 460–72. Epmc, doi:10.1038/s41477-018-0188-8.
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  - Huiet, L., et al. “A worldwide phylogeny of Adiantum (Pteridaceae) reveals remarkable convergent evolution in leaf blade architecture.” Taxon, vol. 67, no. 3, June 2018, pp. 488–502. Scopus, doi:10.12705/673.3.
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  - Schuettpelz, E., et al. “Are there too many fern genera?” Taxon, vol. 67, no. 3, June 2018, pp. 473–80. Scopus, doi:10.12705/673.1.
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  - Dijkhuizen, Laura W., et al. “Is there foul play in the leaf pocket? The metagenome of floating fern Azolla reveals endophytes that do not fix N2 but may denitrify.” The New Phytologist, vol. 217, no. 1, Jan. 2018, pp. 453–66. Epmc, doi:10.1111/nph.14843.
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  - Sigel, Erin M., et al. “Overlapping Patterns of Gene Expression Between Gametophyte and Sporophyte Phases in the Fern Polypodium amorphum (Polypodiales).” Frontiers in Plant Science, vol. 9, Jan. 2018, p. 1450. Epmc, doi:10.3389/fpls.2018.01450.
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  - Song, Michael, et al. “A novel chloroplast gene reported for flagellate plants.” American Journal of Botany, vol. 105, no. 1, Jan. 2018, pp. 117–21. Epmc, doi:10.1002/ajb2.1010.
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  - Rothfels, Carl J., et al. “Next-generation polyploid phylogenetics: rapid resolution of hybrid polyploid complexes using PacBio single-molecule sequencing.” The New Phytologist, vol. 213, no. 1, Jan. 2017, pp. 413–29. Epmc, doi:10.1111/nph.14111.
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  - Hirai, R. Y., et al. “Phylogeny and relationships of the neotropical Adiantum raddianum group (Pteridaceae).” Taxon, vol. 65, no. 6, Dec. 2016, pp. 1225–35. Scopus, doi:10.12705/656.1.
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  - Li, Fay-Wei, et al. “Genes Translocated into the Plastid Inverted Repeat Show Decelerated Substitution Rates and Elevated GC Content.” Genome Biology and Evolution, vol. 8, no. 8, Aug. 2016, pp. 2452–58. Epmc, doi:10.1093/gbe/evw167.
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  - Schuettpelz, E., et al. “A revised generic classification of vittarioid ferns (Pteridaceae) based on molecular, micromorphological, and geographic data.” Taxon, vol. 65, no. 4, Aug. 2016, pp. 708–22. Scopus, doi:10.12705/654.2.
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  - Haufler, C. H., et al. “Sex and the single gametophyte: Revising the homosporous vascular plant life cycle in light of contemporary research.” Bioscience, vol. 66, no. 11, Jan. 2016, pp. 928–37. Scopus, doi:10.1093/biosci/biw108.
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  - Pryer, K. M., et al. “Maidenhair ferns, adiantum, are indeed monophyletic and sister to shoestring ferns, vittarioids (Pteridaceae).” Systematic Botany, vol. 41, no. 1, Jan. 2016. Scopus, doi:10.1600/036364416X690660.
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  - Grusz, Amanda L., and Kathleen M. Pryer. “Development of microsatellite markers for the apomictic triploid fern Myriopteris lindheimeri (Pteridaceae).” Applications in Plant Sciences, vol. 3, no. 11, Nov. 2015. Epmc, doi:10.3732/apps.1500061.
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  - Kao, T. T., et al. “Origins of the endemic scaly tree ferns on the galápagos and Cocos Islands.” International Journal of Plant Sciences, vol. 176, no. 9, Nov. 2015, pp. 869–79. Scopus, doi:10.1086/683303.
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  - Wolf, Paul G., et al. “An Exploration into Fern Genome Space.” Genome Biology and Evolution, vol. 7, no. 9, Sept. 2015, pp. 2533–44. Epmc, doi:10.1093/gbe/evv163.
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  - Rothfels, Carl J., et al. “The evolutionary history of ferns inferred from 25 low-copy nuclear genes.” American Journal of Botany, vol. 102, no. 7, July 2015, pp. 1089–107. Epmc, doi:10.3732/ajb.1500089.
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  - Rothfels, Carl J., et al. “Natural hybridization between genera that diverged from each other approximately 60 million years ago.” The American Naturalist, vol. 185, no. 3, Mar. 2015, pp. 433–42. Epmc, doi:10.1086/679662.
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  - Huiet, Layne, et al. “Adiantumshastense, a new species of maidenhair fern from California.” Phytokeys, no. 53, Jan. 2015, pp. 73–81. Epmc, doi:10.3897/phytokeys.53.5151.
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  - Li, Fay-Wei, et al. “Phytochrome diversity in green plants and the origin of canonical plant phytochromes.” Nature Communications, vol. 6, Jan. 2015, p. 7852. Epmc, doi:10.1038/ncomms8852.
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  - Li, Fay-Wei, et al. “The origin and evolution of phototropins.” Frontiers in Plant Science, vol. 6, Jan. 2015, p. 637. Epmc, doi:10.3389/fpls.2015.00637.
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  - Schuettpelz, E., et al. “A Unified Approach to Taxonomic Delimitation in the Fern Genus Pentagramma (Pteridaceae).” Systematic Botany, vol. 40, no. 3, Jan. 2015, pp. 629–44. Scopus, doi:10.1600/036364415X689366.
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  - Rothfels, C. J., et al. “Low-copy nuclear data confirm rampant allopolyploidy in the cystopteridaceae (Polypodiales).” Taxon, vol. 63, no. 5, Oct. 2014, pp. 1026–36. Scopus, doi:10.12705/635.32.
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  - Sigel, Erin M., et al. “Evidence for reciprocal origins in Polypodium hesperium (Polypodiaceae): a fern model system for investigating how multiple origins shape allopolyploid genomes.” American Journal of Botany, vol. 101, no. 9, Sept. 2014, pp. 1476–85. Epmc, doi:10.3732/ajb.1400190.
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  - Li, Fay-Wei, et al. “Horizontal transfer of an adaptive chimeric photoreceptor from bryophytes to ferns.” Proceedings of the National Academy of Sciences of the United States of America, vol. 111, no. 18, May 2014, pp. 6672–77. Epmc, doi:10.1073/pnas.1319929111.
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  - Korall, P., and K. M. Pryer. “Global biogeography of scaly tree ferns (Cyatheaceae): Evidence for Gondwanan vicariance and limited transoceanic dispersal.” Journal of Biogeography, vol. 41, no. 2, Feb. 2014, pp. 402–13. Scopus, doi:10.1111/jbi.12222.
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  - Korall, Petra, and Kathleen M. Pryer. “Global biogeography of scaly tree ferns (Cyatheaceae): evidence for Gondwanan vicariance and limited transoceanic dispersal.” Journal of Biogeography, vol. 41, no. 2, Feb. 2014, pp. 402–13. Epmc, doi:10.1111/jbi.12222.
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  - Grusz, A. L., et al. “Patterns of diversification in the xeric-adapted fern genus myriopteris (Pteridaceae).” Systematic Botany, vol. 39, no. 3, Jan. 2014, pp. 698–714. Scopus, doi:10.1600/036364414X681518.
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  - Li, Fay-Wei, and Kathleen M. Pryer. “Crowdfunding the Azolla fern genome project: a grassroots approach.” Gigascience, vol. 3, Jan. 2014, p. 16. Epmc, doi:10.1186/2047-217x-3-16.
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  - Sessa, Emily B., et al. “Between two fern genomes.” Gigascience, vol. 3, Jan. 2014, p. 15. Epmc, doi:10.1186/2047-217x-3-15.
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  - Sigel, E. M., et al. “Rediscovery of Polypodium calirhiza (Polypodiaceae) in Mexico.” Brittonia, 2014, pp. 1–9.
  - Sigel, E. M., et al. “Rediscovery of Polypodium calirhiza (Polypodiaceae) in Mexico.” Brittonia, vol. 66, no. 3, Jan. 2014, pp. 278–86. Scopus, doi:10.1007/s12228-014-9332-6.
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  - Sigel, E. M., et al. “Phylogeny, divergence time estimates, and phylogeography of the diploid species of the polypodium vulgare complex (Polypodiaceae).” Systematic Botany, vol. 39, no. 4, Jan. 2014, pp. 1042–55. Scopus, doi:10.1600/036364414X683921.
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  - Rothfels, C. J., et al. “A plastid phylogeny of the cosmopolitan fern family cystopteridaceae (Polypodiopsida).” Systematic Botany, vol. 38, no. 2, June 2013, pp. 295–306. Scopus, doi:10.1600/036364413X666787.
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  - Grusz, A. L., et al. “Refining the phylogeny of cheilanthoid ferns: The resurrection and recircumscription of Myriopteris (Pteridaceae).” Systematic Botany, 2013.
  - León, B., et al. “Revealing a cryptic fern distribution through DNA sequencing: Pityrogramma trifoliata in the Western Andes of Peru.” American Fern Journal, vol. 103, no. 1, Jan. 2013, pp. 40–48. Scopus, doi:10.1640/0002-8444-103.1.40.
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  - Rothfels, Carl J., et al. “Transcriptome-mining for single-copy nuclear markers in ferns.” Plos One, vol. 8, no. 10, Jan. 2013, p. e76957. Epmc, doi:10.1371/journal.pone.0076957.
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  - Beck, James B., et al. “Identifying multiple origins of polyploid taxa: a multilocus study of the hybrid cloak fern (Astrolepis integerrima; Pteridaceae).” American Journal of Botany, vol. 99, no. 11, Nov. 2012, pp. 1857–65. Epmc, doi:10.3732/ajb.1200199.
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  - Li, F. W., et al. “Gaga, a new fern genus segregated from cheilanthes (pteridaceae).” Systematic Botany, vol. 37, no. 4, Oct. 2012, pp. 845–60. Scopus, doi:10.1600/036364412X656626.
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  - Pryer, Kathleen M. “The Distinguished Legacy of DMB: Donald MacPhail Britton (1923–2012).” American Fern Journal, vol. 102, no. 4, American Fern Society, Oct. 2012, pp. 241–51. Crossref, doi:10.1640/0002-8444-102.4.241.
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  - Johnson, Anne K., et al. “Unique expression of a sporophytic character on the gametophytes of notholaenid ferns (Pteridaceae).” American Journal of Botany, vol. 99, no. 6, June 2012, pp. 1118–24. Epmc, doi:10.3732/ajb.1200049.
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  - Rothfels, Carl J., et al. “Overcoming deep roots, fast rates, and short internodes to resolve the ancient rapid radiation of eupolypod II ferns.” Systematic Biology, vol. 61, no. 3, May 2012, pp. 490–509. Epmc, doi:10.1093/sysbio/sys001.
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  - Pryer, K. M. “The distinguished legacy of DMB: Donald MacPhail Britton (1923 - 2012).” American Fern Journal, vol. 102, 2012, p. inpress.
  - Rothfels, C. J., et al. “A revised classification for eupolypod II ferns (Polypodiales: Polypodiopsida).” Taxon, vol. 61, 2012, pp. 515–33.
  - Rothfels, C. J., et al. “A revised family-level classification for eupolypod II ferns (Polypodiidae: Polypodiales).” Taxon, vol. 61, no. 3, Jan. 2012, pp. 515–33. Scopus, doi:10.1002/tax.613003.
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  - Beck, James B., et al. “Do asexual polyploid lineages lead short evolutionary lives? A case study from the fern genus Astrolepis.” Evolution; International Journal of Organic Evolution, vol. 65, no. 11, Nov. 2011, pp. 3217–29. Epmc, doi:10.1111/j.1558-5646.2011.01362.x.
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  - Sigel, E. M., et al. “Species relationships and farina evolution in the cheilanthoid fern genus Argyrochosma (Pteridaceae).” Systematic Botany, vol. 36, no. 3, July 2011, pp. 554–64. Scopus, doi:10.1600/036364411X583547.
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  - Wolf, Paul G., et al. “The evolution of chloroplast genes and genomes in ferns.” Plant Molecular Biology, vol. 76, no. 3–5, July 2011, pp. 251–61. Epmc, doi:10.1007/s11103-010-9706-4.
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  - Li, Fay-Wei, et al. “rbcL and matK earn two thumbs up as the core DNA barcode for ferns.” Plos One, vol. 6, no. 10, Jan. 2011, p. e26597. Epmc, doi:10.1371/journal.pone.0026597.
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  - Pryer, Kathleen M., et al. “DNA barcoding exposes a case of mistaken identity in the fern horticultural trade.” Molecular Ecology Resources, vol. 10, no. 6, Nov. 2010, pp. 979–85. Epmc, doi:10.1111/j.1755-0998.2010.02858.x.
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  - Korall, Petra, et al. “Abrupt deceleration of molecular evolution linked to the origin of arborescence in ferns.” Evolution; International Journal of Organic Evolution, vol. 64, no. 9, Sept. 2010, pp. 2786–92. Epmc, doi:10.1111/j.1558-5646.2010.01000.x.
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  - Beck, J. B., et al. “A diploids-first approach to species delimitation and interpreting polyploid evolution in the fern genus astrolepis (pteridaceae).” Systematic Botany, vol. 35, no. 2, Apr. 2010, pp. 223–34. Scopus, doi:10.1600/036364410791638388.
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  - Grusz, Amanda L., et al. “Deciphering the origins of apomictic polyploids in the Cheilanthes yavapensis complex (Pteridaceae).” American Journal of Botany, vol. 96, no. 9, Sept. 2009, pp. 1636–45. Epmc, doi:10.3732/ajb.0900019.
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  - Schneider, H., et al. “Is morphology really at odds with molecules in estimating fern phylogeny?” Systematic Botany, vol. 34, no. 3, July 2009, pp. 455–75. Scopus, doi:10.1600/036364409789271209.
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  - Schuettpelz, Eric, and Kathleen M. Pryer. “Evidence for a Cenozoic radiation of ferns in an angiosperm-dominated canopy.” Proceedings of the National Academy of Sciences of the United States of America, vol. 106, no. 27, July 2009, pp. 11200–05. Epmc, doi:10.1073/pnas.0811136106.
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  - Pryer, Kathleen M., and David J. Hearn. “Evolution of leaf form in marsileaceous ferns: evidence for heterochrony.” Evolution; International Journal of Organic Evolution, vol. 63, no. 2, Feb. 2009, pp. 498–513. Epmc, doi:10.1111/j.1558-5646.2008.00562.x.
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  - Hennequin, S., et al. “Divergence times and the evolution of epiphytism in filmy ferns (Hymenophyllaceae) revisited.” International Journal of Plant Sciences, vol. 169, no. 9, Nov. 2008, pp. 1278–87. Scopus, doi:10.1086/591983.
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  - Schuettpelz, E., et al. “The utility of nuclear gapCp in resolving polyploid fern origins.” Systematic Botany, vol. 33, no. 4, Oct. 2008, pp. 621–29. Scopus, doi:10.1600/036364408786500127.
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  - Nagalingum, N. S., et al. “Assessing phylogenetic relationships in extant heterosporous ferns (Salviniales), with a focus on Pilularia and Salvinia.” Botanical Journal of the Linnean Society, vol. 157, no. 4, Aug. 2008, pp. 673–85. Scopus, doi:10.1111/j.1095-8339.2008.00806.x.
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  - Metzgar, J. S., et al. “The paraphyly of Osmunda is confirmed by phylogenetic analyses of seven plastid loci.” Systematic Botany, vol. 33, no. 1, Mar. 2008, pp. 31–36. Scopus, doi:10.1600/036364408783887528.
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  - Christenhusz, M. J., et al. “Evolutionary relationships within the Neotropical, eusporangiate fern genus Danaea (Marattiaceae).” Molecular Phylogenetics and Evolution, vol. 46, no. 1, Jan. 2008, pp. 34–48. Epmc, doi:10.1016/j.ympev.2007.09.015.
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  - Rothfels, C. J., et al. “Toward a monophyletic Notholaena (Pteridaceae): Resolving patterns of evolutionary convergence in xeric-adapted ferns.” Taxon, vol. 57, no. 3, Jan. 2008, pp. 712–24. Scopus, doi:10.1002/tax.573005.
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  - Metzgar, J. S., et al. “Phylogeny and divergence time estimates for the fern genus Azolla (Salviniaceae).” International Journal of Plant Sciences, vol. 168, no. 7, Oct. 2007, pp. 1045–53. Scopus, doi:10.1086/519007.
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  - Haugen, Peik, et al. “Cyanobacterial ribosomal RNA genes with multiple, endonuclease-encoding group I introns.” Bmc Evolutionary Biology, vol. 7, Sept. 2007, p. 159. Epmc, doi:10.1186/1471-2148-7-159.
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  - Schuettpelz, Eric, et al. “A molecular phylogeny of the fern family Pteridaceae: assessing overall relationships and the affinities of previously unsampled genera.” Molecular Phylogenetics and Evolution, vol. 44, no. 3, Sept. 2007, pp. 1172–85. Epmc, doi:10.1016/j.ympev.2007.04.011.
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  - Korall, Petra, et al. “A molecular phylogeny of scaly tree ferns (Cyatheaceae).” American Journal of Botany, vol. 94, no. 5, May 2007, pp. 873–86. Epmc, doi:10.3732/ajb.94.5.873.
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  - Nagalingum, N. S., et al. “Molecular phylogenetic relationships and morphological evolution in the heterosporous fern genus Marsilea.” Systematic Botany, vol. 32, no. 1, Jan. 2007, pp. 16–25. Scopus, doi:10.1600/036364407780360256.
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  - Schuettpelz, E., and K. M. Pryer. “Fern phylogeny inferred from 400 leptosporangiate species and three plastid genes.” Taxon, vol. 56, no. 4, Jan. 2007, pp. 1037–50. Scopus, doi:10.2307/25065903.
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  - Nagalingum, N. S., et al. “Comparative morphology of reproductive structures in heterosporous water ferns and a reevaluation of the sporocarp.” International Journal of Plant Sciences, vol. 167, no. 4, July 2006, pp. 805–15. Scopus, doi:10.1086/503848.
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  - Korall, Petra, et al. “Tree ferns: monophyletic groups and their relationships as revealed by four protein-coding plastid loci.” Molecular Phylogenetics and Evolution, vol. 39, no. 3, June 2006, pp. 830–45. Epmc, doi:10.1016/j.ympev.2006.01.001.
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  - Schuettpelz, Eric, and Kathleen M. Pryer. “Reconciling extreme branch length differences: decoupling time and rate through the evolutionary history of filmy ferns.” Systematic Biology, vol. 55, no. 3, June 2006, pp. 485–502. Epmc, doi:10.1080/10635150600755438.
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  - Korall, P., et al. “On the phylogenetic position of Cystodium: It's not a tree fern - It's a polypod!.” American Fern Journal, vol. 96, no. 2, Apr. 2006, pp. 45–53. Scopus, doi:10.1640/0002-8444(2006)96[45:OTPPOC]2.0.CO;2.
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  - Schuettpelz, E., et al. “Plastid atpA data provide improved support for deep relationships among ferns.” Taxon, vol. 55, no. 4, Jan. 2006, pp. 897–906. Scopus, doi:10.2307/25065684.
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  - Smith, A. R., et al. “A classification for extant ferns.” Taxon, vol. 55, no. 3, Jan. 2006, pp. 705–31. Scopus, doi:10.2307/25065646.
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  - Wikström, Niklas, and Kathleen M. Pryer. “Incongruence between primary sequence data and the distribution of a mitochondrial atp1 group II intron among ferns and horsetails.” Molecular Phylogenetics and Evolution, vol. 36, no. 3, Sept. 2005, pp. 484–93. Epmc, doi:10.1016/j.ympev.2005.04.008.
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  - Pryer, Kathleen M., et al. “Phylogeny and evolution of ferns (monilophytes) with a focus on the early leptosporangiate divergences.” American Journal of Botany, vol. 91, no. 10, Oct. 2004, pp. 1582–98. Epmc, doi:10.3732/ajb.91.10.1582.
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  - Schneider, Harald, et al. “Ferns diversified in the shadow of angiosperms.” Nature, vol. 428, no. 6982, Apr. 2004, pp. 553–57. Epmc, doi:10.1038/nature02361.
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  - Des Marais, D. L., et al. “Phylogenetic relationships and evolution of extant horsetails, Equisetum, based on chloroplast DNA sequence data (rbcL and trnL-F).” International Journal of Plant Sciences, vol. 164, no. 5, Jan. 2003, pp. 737–51. Scopus, doi:10.1086/376817.
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  - Dubuisson, J. Y., et al. “rbcL phylogeny of the fern genus Trichomanes (Hymenophyllaceae), with special reference to Neotropical taxa.” International Journal of Plant Sciences, vol. 164, no. 5, Jan. 2003, pp. 753–61. Scopus, doi:10.1086/377059.
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  - Pryer, Kathleen M., et al. “Deciding among green plants for whole genome studies.” Trends in Plant Science, vol. 7, no. 12, Dec. 2002, pp. 550–54. Epmc, doi:10.1016/s1360-1385(02)02375-0.
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  - Schneider, H., and K. M. Pryer. “Structure and function of spores in the aquatic heterosporous fern family Marsileaceae.” International Journal of Plant Sciences, vol. 163, no. 4, Jan. 2002, pp. 485–505. Scopus, doi:10.1086/340736.
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  - Smith, A. R., et al. “Metaxya lanosa, a second species in the genus and fern family Metaxyaceae.” Systematic Botany, vol. 26, no. 3, Oct. 2001, pp. 480–86.
  - Pryer, K. M., et al. “rbcL data reveal two monophyletic groups of filmy ferns (Filicopsida: Hymenophyllaceae).” American Journal of Botany, vol. 88, no. 6, June 2001, pp. 1118–30. Epmc, doi:10.2307/2657095.
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  - Pryer, K. M., et al. “Horsetails and ferns are a monophyletic group and the closest living relatives to seed plants.” Nature, vol. 409, no. 6820, Feb. 2001, pp. 618–22. Epmc, doi:10.1038/35054555.
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  - Lupia, R., et al. “Marsileaceae sporocarps and spores from the late cretaceous of Georgia, U.S.A.” International Journal of Plant Sciences, vol. 161, no. 6, Jan. 2000, pp. 975–88. Scopus, doi:10.1086/317567.
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  - Pryer, K. M. “Phylogeny of Marsileaceous Ferns and Relationships of the Fossil Hydropteris pinnata Reconsidered.” International Journal of Plant Sciences, vol. 160, no. 5, Sept. 1999, pp. 931–54. Epmc, doi:10.1086/314177.
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  - Turner, S., et al. “Investigating deep phylogenetic relationships among cyanobacteria and plastids by small subunit rRNA sequence analysis.” The Journal of Eukaryotic Microbiology, vol. 46, no. 4, July 1999, pp. 327–38. Epmc, doi:10.1111/j.1550-7408.1999.tb04612.x.
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  - Wolf, P. G., et al. “Phylogenetic relationships of the enigmatic fern families Hymenophyllopsidaceae and Lophosoriaceae: Evidence from rbcL nucleotide sequences.” Plant Systematics and Evolution, vol. 219, no. 3–4, Jan. 1999, pp. 263–70. Scopus, doi:10.1007/BF00985583.
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  - Hasebe, Mitsuyasu, et al. “Fern Phylogeny Based on rbcL Nucleotide Sequences.” American Fern Journal, vol. 85, no. 4, JSTOR, Oct. 1995, pp. 134–134. Crossref, doi:10.2307/1547807.
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  - Pryer, Kathleen M., et al. “Phylogenetic Relationships of Extant Ferns Based on Evidence from Morphology and rbcL Sequences.” American Fern Journal, vol. 85, no. 4, JSTOR, Oct. 1995, pp. 205–205. Crossref, doi:10.2307/1547810.
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  - Pryer, Kathleen M., and Christopher H. Haufler. “Isozymic and Chromosomal Evidence for the Allotetraploid Origin of Gymnocarpium dryopteris (Dryopteridaceae).” Systematic Botany, vol. 18, no. 1, JSTOR, Jan. 1993, pp. 150–150. Crossref, doi:10.2307/2419795.
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  - Pryer, Kathleen M. “The Status of Gymnocarpium heterosporum and G. robertianum in Pennsylvania.” American Fern Journal, vol. 82, no. 1, JSTOR, Jan. 1992, pp. 34–34. Crossref, doi:10.2307/1547760.
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  - Pryer, K. “The limestone oak fern: new to Manitoba.” The Blue Jay, vol. 48, no. 4, 1990, pp. 192–95.
  - Pryer, K. M., and L. R. Phillippe. “A synopsis of the genus Sanicula (Apiaceae) in eastern Canada.” Canadian Journal of Botany, vol. 67, no. 3, Jan. 1989, pp. 694–707. Scopus, doi:10.1139/b89-093.
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  - McNeill, J., and Kathleen M. Pryer. “THE STATUS AND TYPIFICATION OF PHEGOPTERIS AND GYMNOCARPIUM.” Taxon, vol. 34, no. 1, Wiley, Feb. 1985, pp. 136–43. Crossref, doi:10.2307/1221578.
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  - Pryer, Kathleen M., et al. “A numerical analysis of chromatographic profiles in North American taxa of the fern genus Gymnocarpium.” Canadian Journal of Botany, vol. 61, no. 10, Canadian Science Publishing, Oct. 1983, pp. 2592–602. Crossref, doi:10.1139/b83-285.
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  - Pryer, Kathleen M., and D. M. Britton. “Spore studies in the genus Gymnocarpium.” Canadian Journal of Botany, vol. 61, no. 2, Canadian Science Publishing, Feb. 1983, pp. 377–88. Crossref, doi:10.1139/b83-045.
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  - Sarvela, J., et al. “Studies on the Gymnocarpium robertianum complex in North America.” Rhodora, vol. 83, 1981, pp. 421–31.
  - Chase, R., et al. “Responses to conspecific chemical stimuli in the treatment snail Achatina fulica (Pulmonata: Sigmurethra).” Behavioral Biology, vol. 22, no. 3, Mar. 1978, pp. 302–15. Epmc, doi:10.1016/s0091-6773(78)92366-0.
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  - Meineke, E. K., et al. Applying Machine Learning to Investigate Long Term Insect-Plant Interactions Preserved on Digitized Herbarium Specimens. Cold Spring Harbor Laboratory. Crossref, doi:10.1101/790899.
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- Book Sections
  - Schuettpelz, E., and K. M. Pryer. “Fern phylogeny.” Biology and Evolution of Ferns and Lycophytes, 2008, pp. 395–416. Scopus, doi:10.1017/CBO9780511541827.016.
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  - Smith, A. R., et al. “Fern classification.” Biology and Evolution of Ferns and Lycophytes, 2008, pp. 417–67. Scopus, doi:10.1017/CBO9780511541827.017.
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- Conference Papers
  - Windham, Michael D., et al. “Using Plastid and Nuclear DNA Sequences to Redraw Generic Boundaries and Demystif Species Complexes in Cheilanthoid Ferns.” American Fern Journal, vol. 99, no. 2, AMER FERN SOC INC, 2009, pp. 128–32.
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  - Pryer, K. M., et al. “The radiation of vascular plants.” Assembling the Tree of Life, edited by J. Cracraft and M. J. Donoghue, OXFORD UNIV PRESS, 2004, pp. 138–53.
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Teaching & Mentoring
Recent Courses
- BIOLOGY 158: Plants and Human Use 2020
- BIOLOGY 293: Research Independent Study 2020
- BIOLOGY 347L: Plants and People 2020
- BIOLOGY 493: Research Independent Study 2020
- BIOLOGY 791T: Tutorial 2020
- BIOLOGY 792: Research 2020
- BIOLOGY 158: Plants and Human Use 2019
- BIOLOGY 347L: Plants and People 2019
- BIOLOGY 493: Research Independent Study 2019
- BIOLOGY 791T: Tutorial 2019
- BIOLOGY 792: Research 2019
- HOUSECS 59: House Course 2019
- BIOLOGY 158: Plants and Human Use 2018
- BIOLOGY 293: Research Independent Study 2018
- BIOLOGY 347L: Plants and People 2018
- BIOLOGY 391: Independent Study: Advanced Topics 2018
- BIOLOGY 493: Research Independent Study 2018
- BIOLOGY 792: Research 2018
Scholarly, Clinical, & Service Activities
Presentations & Appearances
Outreach & Engaged Scholarship
Service to the Profession
- President. American Fern Society. 2012 - 2014 2012 - 2014
- President. American Society of Plant Taxonomists. 2012 - 2013 2012 - 2013
- Council Member, International Association of Plant Taxonomists (IAPT). 2011 - 2017 2011 - 2017
- Associate Editor : Annals of Botany. 2010 2010
- Associate Editor : Molecular Phylogenetics and Evolution. 2010 2010
Service to Duke
- Director of Graduate Studies. Department of Biology, Duke University. July 2014 - June 2020 2014 - 2020
- Director of DUKE Herbarium. Department of Biology, Duke University. 2005 - 2022 2005 - 2022

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