Current Duke Appointments & Affiliations
Professor Emeritus of Biology
·
2025 - Present
Biology,
Trinity College of Arts & Sciences
Associate of the Duke Initiative for Science & Society
·
2017 - Present
Duke Science & Society,
University Initiatives & Academic Support Units
Recent Scholarly Works
Phasing Hyb-Seq loci from two combined bait sets to investigate phylogenetic patterns of hybridization within Boechera s.s. (Brassicaceae).
Journal article Annals of botany · August 2026 Background and aimsThe complex landscape of hybridization and apomixis that characterizes the genus Boechera (Brassicaceae) is only beginning to be understood. Boechera, with over 80 recognized sexual species predominantly in North America, has em ... Full text CiteResolving taxonomic complexity in the genus Boechera (Brassicaceae) using the Boechera Microsatellite Website: a case study of the rare triploid B. bodiensis.
Journal article Annals of botany · August 2026 Background and aimsThe genus Boechera (rock cress) comprises ∼75 sexual diploid taxa and >355 genetically distinct hybrid lineages, many of which reproduce asexually through apomixis. This complex reproductive landscape poses substantial challenge ... Full text CiteLosing genes, gaining edits: how relaxed selection and inverted repeat expansion shape RNA editing in Schizaeaceae plastomes.
Journal article The Plant journal : for cell and molecular biology · June 2026 RNA editing is a post-transcriptional pyrimidine exchange process that alters plastid and mitochondrial transcripts in nearly all land plants. Although confined to organelles, it is directed by nuclear-encoded PLS-type pentatricopeptide repeat (PPR) protei ... Full text CiteRecent Grants
Digitization TCN: Collaborative Research: The Pteridological Collections Consortium: An integrative approach to pteridophyte diversity over the last 420 million years
ResearchCo-Principal Investigator · Awarded by University of North Carolina - Chapel Hill · 2018 - 2022DISSERTATION RESEARCH: Evolution and Function of Farina in the Desiccation-tolerant Notholaenid Ferns (Pteridaceae)
Inst. Training Prgm or CMEPrincipal Investigator · Awarded by National Science Foundation · 2017 - 2022Oceans Apart: Assessing the roles of Vicariance and Long-distance Dispersal in the Widely Disjunct Fern Genus Cheilanthes (Pteridaceae)
Inst. Training Prgm or CMEPrincipal Investigator · Awarded by National Geographic Society · 2019 - 2019View All Grants
Education
Duke University ·
1995
Ph.D.
University of Guelph (Canada) ·
1981
M.S.
McGill University (Canada) ·
1976
B.S.