Comparative population genomics identified genomic regions and candidate genes associated with fruit domestication traits in peach.

ABSTRACT: Crop evolution is a long-term process involving selection by natural evolutionary forces and anthropogenic influences; however, the genetic mechanisms underlying the domestication and improvement of fruit crops have not been well studied to date. Here, we performed a population structure analysis in peach (Prunus persica) based on the genome-wide resequencing of 418 accessions and confirmed the presence of an obvious domestication event during evolution. We identified 132 and 106 selective sweeps associated with domestication and improvement, respectively. Analysis of their tissue-specific expression patterns indicated that the up-regulation of selection genes during domestication occurred mostly in fruit and seeds as opposed to other organs. However, during the improvement stage, more up-

SUBMITTER: Cao K 

PROVIDER: S-EPMC6737019 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature