Dynamic effects of interacting genes underlying rice flowering-time phenotypic plasticity and global adaptation.

ABSTRACT: The phenotypic variation of living organisms is shaped by genetics, environment, and their interaction. Understanding phenotypic plasticity under natural conditions is hindered by the apparently complex environment and the interacting genes and pathways. Herein, we report findings from the dissection of rice flowering-time plasticity in a genetic mapping population grown in natural long-day field environments. Genetic loci harboring four genes originally discovered for their photoperiodic effects (Hd1, Hd2, Hd5, and Hd6) were found to differentially respond to temperature at the early growth stage to jointly determine flowering time. The effects of these plasticity genes were revealed with multiple reaction norms along the temperature gradient. By coupling genom

SUBMITTER: Guo T 

PROVIDER: S-EPMC7263186 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature