Article
Standing variation rather than recent adaptive introgression probably underlies differentiation of the texanus subspecies of Helianthus annuus.
Molecular ecology - 1 Dec 2021
Owens Gregory L, Todesco Marco, Bercovich Natalia, Légaré Jean-Sébastien, Mitchell Nora, Whitney Kenneth D, Rieseberg Loren H
Abstract excerpt
The origins of geographic races in wide-ranging species are poorly understood. In Texas, the texanus subspecies of Helianthus annuus has long been thought to have acquired its defining phenotypic traits via introgression from a local congener, H. debilis, but previous tests of this hypothesis were inconclusive. Here, we explore the origins of H. a. texanus using whole genome sequencing data from across the entire...
Topics
- Genomics
- Helianthus
- Hybridization, Genetic
- Phenotype
- Selection, Genetic