Convergent and complementary selection shaped gains and losses of eusociality in sweat bees.

ABSTRACT: Sweat bees have repeatedly gained and lost eusociality, a transition from individual to group reproduction. Here we generate chromosome-length genome assemblies for 17 species and identify genomic signatures of evolutionary trade-offs associated with transitions between social and solitary living. Both young genes and regulatory regions show enrichment for these molecular patterns. We also identify loci that show evidence of complementary signals of positive and relaxed selection linked specifically to the convergent gains and losses of eusociality in sweat bees. This includes two pleiotropic proteins that bind and transport juvenile hormone (JH)-a key regulator of insect development and reproduction. We find that one of these proteins is primarily expressed in subperineurial glial cells t

SUBMITTER: Jones BM 

PROVIDER: S-EPMC11610481 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature