Campus Units

Ecology, Evolution and Organismal Biology

Document Type

Article

Publication Version

Published Version

Publication Date

7-10-2018

Journal or Book Title

Scientific Reports

Volume

8

First Page

10388

DOI

10.1038/s41598-018-28489-5

Abstract

Eusociality has independently evolved multiple times in the hymenoptera, but the patterns of adaptive molecular evolution underlying the evolution and elaboration of eusociality remain uncertain. Here, we performed a population genomics study of primitively eusocial Polistes (paper wasps), and compared their patterns of molecular evolution to two social bees; Bombus (bumblebees), and Apis (honey bees). This species triad allowed us to study molecular evolution across a gradient of social complexity (Polistes < Bombus < Apis) and compare species pairs that have similar (i.e. Polistes and Bombus) or different (i.e. Polistes and Apis) life histories, while controlling for phylogenetic distance. We found that regulatory genes have high levels of positive selection in Polistes; consistent with the prediction that adaptive changes in gene regulation are important during early stages of social evolution. Polistes and Bombus exhibit greater similarity in patterns of adaptive evolution including greater overlap of genes experiencing positive selection, and greater positive selection on queen-biased genes. Our findings suggest that either adaptive evolution of a few key genes underlie the evolution of simpler forms of eusociality, or that the initial stages of social evolution lead to selection on a few key traits orchestrated by orthologous genes and networks.

Comments

This article is published as Dogantzis, Kathleen A., Brock A. Harpur, André Rodrigues, Laura Beani, Amy L. Toth, and Amro Zayed. "Insects with similar social complexity show convergent patterns of adaptive molecular evolution." Scientific Reports 8 (2018): 10388. doi: 10.1038/s41598-018-28489-5.

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Copyright Owner

The Authors

Language

en

File Format

application/pdf

Share

COinS