Genomic analyses of an extensive collection of wild and cultivated accessions provide new insights into peach breeding history.

ABSTRACT:

Background

Human selection has a long history of transforming crop genomes. Peach (Prunus persica) has undergone more than 5000 years of domestication that led to remarkable changes in a series of agronomically important traits, but genetic bases underlying these changes and the effects of artificial selection on genomic diversity are not well understood.

Results

Here, we report a comprehensive analysis of peach evolution based on genome sequences of 480 wild and cultivated accessions. By focusing on a set of quantitative trait loci (QTLs), we provide evidence supporting that distinct phases of domestication and improvement have led to an increase in fruit size and taste and extended its geographic distribution. Fruit size was predominantly selected during domestication, and

SUBMITTER: Li Y 

PROVIDER: S-EPMC6383288 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature