1. Population structure in diverse pepper (Capsicum spp.) accessions
- Author
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Jack McCoy, Natalia Martínez-Ainsworth, Vivian Bernau, Hannah Scheppler, Grant Hedblom, Achuyt Adhikari, Anna McCormick, Michael Kantar, Leah McHale, Lev Jardón-Barbolla, Kristin L. Mercer, and David Baumler
- Subjects
General Medicine ,General Biochemistry, Genetics and Molecular Biology - Abstract
Background Peppers, bell and chile, are a culturally and economically important worldwide. Domesticated Capsicum spp. are distributed globally and represent a complex of valuable genetic resources. Objectives Explore population structure and diversity in a collection of 467 peppers representing eight species, spanning the spectrum from highly domesticated to wild using 22,916 SNP markers distributed across the twelve chromosomes of pepper. Results These species contained varied levels of genetic diversity, which also varied across chromosomes; the species also differ in the size of genetic bottlenecks they have experienced. We found that levels of diversity negatively correlate to levels of domestication, with the more diverse being the least domesticated.
- Published
- 2023
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