Dissection of the Genetic Basis of Rice Panicle Architecture Using a Genome-wide Association Study.

ABSTRACT: Panicle architecture is one of the major factors influencing productivity of rice crops. The regulatory mechanisms underlying this complex trait are still unclear and genetic resources for rice breeders to improve panicle architecture are limited. Here, we have performed a genome-wide association study (GWAS) to analyze and identify genetic determinants underlying three panicle architecture traits. A population of 340 rice accessions from the 3000 Rice Genomes Project was phenotyped for panicle length, primary panicle number and secondary branch number over two years; GWAS was performed across the whole panel, and also across the japonica and indica sub-panels. A total of 153 quantitative trait loci (QTLs) were detected, of which 5 were associated with multiple traits, 8 were unique to eit

SUBMITTER: Bai S 

PROVIDER: S-EPMC8421479 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature