Role of genetic introgression during the evolution of cultivated rice (Oryza sativa L.).

ABSTRACT:

Background

Models for the origins of cultivated rice currently fall into two groups: ones that identify independent domestications of the indica, japonica and possibly also the aus types, and others that propose that the domestication phenotype was initially acquired by japonica, the underlying alleles then transferred by introgression to other pre-domesticated populations, giving the indica and aus varieties. Identifying the impact of past gene flow on cultivated rice genomes is therefore crucial to distinguishing between these models and understanding the domestication history of rice. To this end, we used population-scale polymorphism data to identify the progenitor gene pools of indica, japonica and aus. Variation shared among the cultivated groups but absent from at least one

SUBMITTER: Civan P 

PROVIDER: S-EPMC5913815 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature