Studies of rice Hd1 haplotypes worldwide reveal adaptation of flowering time to different environments.

ABSTRACT: Rice domestication/adaptation is a good model for studies of the development and spread of this important crop. Mutations that caused morphological and physiological change, followed by human selection/expansion, finally led to the improvement of phenotypes suitable for different kinds of environments. We used the sequence information for Heading date 1 (Hd1) gene to reveal the association between sequence changes and flowering phenotypes of rice in different regions. Seven loss-of-function hd1 haplotypes had been reported. By data-mining the genome sequencing information in the public domain, we discovered 3 other types. These loss-of-function allele haplotypes are present in subtropical and tropical regions, which indicates human selection. Some of these haplotypes are present locally. H

SUBMITTER: Wu CC 

PROVIDER: S-EPMC7498076 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature