Genome-wide association study and Mendelian randomization analysis provide insights for improving rice yield potential.

ABSTRACT: Rice yield per plant has a complex genetic architecture, which is mainly determined by its three component traits: the number of grains per panicle (GPP), kilo-grain weight (KGW), and tillers per plant (TP). Exploring ideotype breeding based on selection for genetically less complex component traits is an alternative route for further improving rice production. To understand the genetic basis of the relationship between rice yield and component traits, we investigated the four traits of two rice hybrid populations (575 + 1495 F₁) in different environments and conducted meta-analyses of genome-wide association study (meta-GWAS). In total, 3589 significant loci for three components traits were detected, while only 3 loci for yield were detected. It indicated that rice yield is mai

SUBMITTER: Su J 

PROVIDER: S-EPMC7994632 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature