QTL detection for grain shape and fine mapping of two novel locus <i>qGL4</i> and <i>qGL6 in rice</i>.

ABSTRACT: Rice grain size and grain weight, which have a great influence on rice quality and yield, are complex quantitative traits that are mediated by grain length (GL), grain width (GW), length-to-width ratio (LWR), and grain thickness (GT). In this study, the BC₁F₂ and BC₁F_2:3 populations derived from a cross between two indica rice varieties, Guangzhan 63-4S (GZ63-4S) and Dodda, were used to locate quantitative trait loci (QTL) related to grain size. A total of 30 QTL associated with GL, GW and LWR were detected, of which six QTL were scanned repeatedly in both populations. Two QTL, qGL4 and qGL6, were selected for genetic effect validation and were subsequently fine mapped to 2.359 kb and 176 kb, respectively. LOC_Os04g52240</

SUBMITTER: Zheng Y 

PROVIDER: S-EPMC11402885 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature