Lineage isolation in the face of active gene flow in the coastal plant wild radish is reinforced by differentiated vernalisation responses.

ABSTRACT:

Background

The respective role and relative importance of natural selection and gene flow in the process of population divergence has been a central theme in the speciation literature. A previous study presented conclusive evidence that wild radish on Japanese islands comprises two genetically isolated lineages: the southern and northern groups. However, a general understanding of the lineage isolation with frequent seed flow of the coastal plant species is still unclear. We surveyed nucleotide polymorphisms over 14 nuclear loci in 72 individuals across the Japan-Ryukyu Islands Arc to address the demographic history of wild radish utilising the isolation-with-migration (IM) model. In addition, we investigated the flowering times of individuals in different wild radish lineages, wit

SUBMITTER: Han Q 

PROVIDER: S-EPMC4833902 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature