Dissecting genetic loci affecting grain morphological traits to improve grain weight via nested association mapping.

ABSTRACT:

Key message

The quantitative trait loci (QTLs) for grain morphological traits were identified via nested association mapping and validated in a natural wheat population via haplotype analysis. Grain weight, one of the three most important components of crop yield, is largely determined by grain morphological traits. Dissecting the genetic bases of grain morphology could facilitate the improvement of grain weight and yield production. In this study, four wheat recombinant inbred line populations constructed by crossing the modern variety Yanzhan 1 with three semi-wild wheat varieties (i.e., Chayazheda, Yutiandaomai, and Yunnanxiaomai from Xinjiang, Tibet, and Yunnan, respectively) and one exotic accession Hussar from Great Britain were investigated for grain weight and eight morphol

SUBMITTER: Wang X 

PROVIDER: S-EPMC6791957 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature