Candidate loci involved in domestication and improvement detected by a published 90K wheat SNP array.

ABSTRACT: Selection is one of the most important forces in crop evolution. Common wheat is a major world food crop and a typical allopolyploid with a huge and complex genome. We applied four approaches to detect loci selected in wheat during domestication and improvement. A total of 7,984 candidate loci were detected, accounting for 23.3% of all 34,317 SNPs analysed, a much higher proportion than estimated in previous reports. We constructed a first generation wheat selection map which revealed the following new insights on genome-wide selection: (1) diversifying selection acted by increasing, decreasing or not affecting gene frequencies; (2) the number of loci under selection during domestication was much higher than that during improvement; (3) the contribution to wheat improvement by the D sub-ge

SUBMITTER: Gao L 

PROVIDER: S-EPMC5361097 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature