Haplotypes Phased from Population Transcriptomes Detecting Selection in the Initial Adaptation of to Stressful Environments.

Adaptation is a characteristic that enhances the survival or reproduction of organisms; selection is the critical process leading to adaptive evolution. Therefore, detecting selection is important in studying evolutionary biology. Changes in allele frequency are fundamental to adaptive evolution.

Demographic history and gene flow during silkworm domestication.

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.

Newly evolved introns in human retrogenes provide novel insights into their evolutionary roles.

Background: Retrogenes generally do not contain introns. However, in some instances, retrogenes may recruit internal exonic sequences as introns, which is known as intronization. A retrogene that undergoes intronization is a good model with which to investigate the origin of introns.