Early Domestication History of Asian Rice Revealed by Mutations and Genome-Wide Analysis of Gene Genealogies.

ABSTRACT:

Background

Asian rice (Oryza sativa L.) has been a model plant but its cultivation history is inadequately understood, and its origin still under debate. Several enigmas remain, including how this annual crop shifted its growth habit from its perennial ancestor, O. rufipogon, why genetic divergence between indica and japonica appears older than the history of human domestication, and why some domestication genes do not show signals of introgression between subgroups. Addressing these issues may benefit both basic research and rice breeding.

Results

Gene genealogy-based mutation (GGM) analysis shows that history of Asian rice is divided into two phases (Phase I and II) of about equal lengths. Mutations occurred earlier than the partition of indica and japonica to Os genome ma

SUBMITTER: Lu Y 

PROVIDER: S-EPMC8847465 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature