Peach genetic resources: diversity, population structure and linkage disequilibrium.

ABSTRACT:

Background

Peach (Prunus persica (L.) Batsch) is one of the most important model fruits in the Rosaceae family. Native to the west of China, where peach has been domesticated for more than 4,000 years, its cultivation spread from China to Persia, Mediterranean countries and to America. Chinese peach has had a major impact on international peach breeding programs due to its high genetic diversity. In this research, we used 48 highly polymorphic SSRs, distributed over the peach genome, to investigate the difference in genetic diversity, and linkage disequilibrium (LD) among Chinese cultivars, and North American and European cultivars, and the evolution of current peach cultivars.

Results

In total, 588 alleles were obtained with 48 SSRs on 653 peach accessions, giving an averag

SUBMITTER: Li XW 

PROVIDER: S-EPMC3848491 | biostudies-literature | 2013 Sep

REPOSITORIES: biostudies-literature