Genetic architecture of cyst nematode resistance revealed by genome-wide association study in soybean.

ABSTRACT:

Background

Bi-parental mapping populations have been commonly utilized to identify and characterize quantitative trait loci (QTL) controlling resistance to soybean cyst nematode (SCN, Heterodera glycines Ichinohe). Although this approach successfully mapped a large number of SCN resistance QTL, it captures only limited allelic diversity that exists in parental lines, and it also has limitations for genomic resolution. In this study, a genome-wide association study (GWAS) was performed using a diverse set of 553 soybean plant introductions (PIs) belonging to maturity groups from III to V to detect QTL/genes associated with SCN resistance to HG Type 0.

Results

Over 45,000 single nucleotide polymorphism (SNP) markers generated by the SoySNP50K iSelect BeadChip (http// www.soyba

SUBMITTER: Vuong TD 

PROVIDER: S-EPMC4533770 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature