Population structure, relatedness and ploidy levels in an apple gene bank revealed through genotyping-by-sequencing.

ABSTRACT: In recent years, new genome-wide marker systems have provided highly informative alternatives to low density marker systems for evaluating plant populations. To date, most apple germplasm collections have been genotyped using low-density markers such as simple sequence repeats (SSRs), whereas only a few have been explored using high-density genome-wide marker information. We explored the genetic diversity of the Pometum gene bank collection (University of Copenhagen, Denmark) of 349 apple accessions using over 15,000 genome-wide single nucleotide polymorphisms (SNPs) and 15 SSR markers, in order to compare the strength of the two approaches for describing population structure. We found that 119 accessions shared a putative clonal relationship with at least one other accession in the collec

SUBMITTER: Larsen B 

PROVIDER: S-EPMC6093671 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature