Geographic population structure in an outcrossing plant invasion after centuries of cultivation and recent founding events.

ABSTRACT: Population structure and genetic diversity of invasions are the result of evolutionary processes such as natural selection, drift and founding events. Some invasions are also molded by specific human activities such as selection for cultivars and intentional introduction of desired phenotypes, which can lead to low genetic diversity in the resulting invasion. We investigated the population structure, diversity and origins of a species with both accidental and intentional introduction histories, as well as long-term selection as a cultivar. Dyer's woad (Isatis tinctoria; Brassicaceae) has been used as a dye source for at least eight centuries in Eurasia, was introduced to eastern USA in the 1600s, and is now considered invasive in the western USA. Our analyses of amplified fragment l

SUBMITTER: Gaskin JF 

PROVIDER: S-EPMC5881623 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature