Demographic history and gene flow during silkworm domestication.

ABSTRACT:

Background

Gene flow plays an important role in domestication history of domesticated species. However, little is known about the demographic history of domesticated silkworm involving gene flow with its wild relative.

Results

In this study, four model-based evolutionary scenarios to describe the demographic history of B. mori were hypothesized. Using Approximate Bayesian Computation method and DNA sequence data from 29 nuclear loci, we found that the gene flow at bottleneck model is the most likely scenario for silkworm domestication. The starting time of silkworm domestication was estimated to be approximate 7,500 years ago; the time of domestication termination was 3,984 years ago. Using coalescent simulation analysis, we also found that bi-directional gene flow occurred

SUBMITTER: Yang SY 

PROVIDER: S-EPMC4236568 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature