Keyword: population genetics

Edeline Gagnon

I build phylogenies to clarify taxonomy and biodiversity of key plant groups, focusing on tomato (Solanaceae) and legume (Fabaceae). I use these trees to study how lineages diversified and responded to environmental change, providing evolutionary context for global biodiversity and biome assembly. I study trait evolution to see how ecological pressures shape morphological and genomic features—like genome size, underground organs, and fruit—and how traits affect adaptation. I apply population genomics to wild species to test species boundaries and assess genetic variation, disease-resistance gene diversity, and historical genomic change from modern and herbarium samples. Together, these approaches link evolutionary history, trait diversity, and genomic processes to inform conservation.

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Brian Husband

My research program investigates the ecological and evolutionary processes operating in plant populations, both wild and domesticated. Much of our work is conducted through the lens of plant reproductive systems, which control the quantity and quality of sperm and eggs, patterns of mating, and ultimately the transmission of genetic variation from one generation to the next. Current research projects include: 1) mating system variation and evolution, 2) polyploid speciation, 3) genetic and phenotypic consequences of whole genome duplication; 4) biology of small populations, and 5) impacts of hybridization between introduced species and endangered congeners. We work on a variety of study systems, including Arabidopsis, apple, strawberry, fireweed, American chestnut, and mulberry.

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