Association mapping for epistasis and environmental interaction of yield traits in 323 cotton cultivars under 9 different environments.

ABSTRACT: Improving yield is a major objective for cotton breeding schemes, and lint yield and its three component traits (boll number, boll weight and lint percentage) are complex traits controlled by multiple genes and various environments. Association mapping was performed to detect markers associated with these four traits using 651 simple sequence repeats (SSRs). A mixed linear model including epistasis and environmental interaction was used to screen the loci associated with these four yield traits by 323 accessions of Gossypium hirsutum L. evaluated in nine different environments. 251 significant loci were detected to be associated with lint yield and its three components, including 69 loci with individual effects and all involved in epistasis interactions. These significant loci explain ∼ 62

SUBMITTER: Jia Y 

PROVIDER: S-EPMC4014473 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature