Parallel Speciation of Wild Rice Associated with Habitat Shifts.

ABSTRACT: The occurrence of parallel speciation strongly implies the action of natural selection. However, it is unclear how general a phenomena parallel speciation is since it was only shown in a small number of animal species. In particular, the adaptive process and mechanisms underlying the process of parallel speciation remain elusive. Here, we used an integrative approach incorporating population genomics, common garden, and crossing experiments to investigate parallel speciation of the wild rice species Oryza nivara from O. rufipogon. We demonstrated that O. nivara originated multiple times from different O. rufipogon populations and revealed that different O. nivara populations have evolved similar phenotypes under divergent selection, a reflection of recurrent local adaptation of ancient O.

SUBMITTER: Cai Z 

PROVIDER: S-EPMC6501882 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature