Genomic Signals of Adaptation towards Mutualism and Sociality in Two Ambrosia Beetle Complexes.

ABSTRACT: Mutualistic symbiosis and eusociality have developed through gradual evolutionary processes at different times in specific lineages. Like some species of termites and ants, ambrosia beetles have independently evolved a mutualistic nutritional symbiosis with fungi, which has been associated with the evolution of complex social behaviors in some members of this group. We sequenced the transcriptomes of two ambrosia complexes (Euwallacea sp. near fornicatus⁻Fusarium euwallaceae and Xyleborus glabratus⁻Raffaelea lauricola) to find evolutionary signatures associated with mutualism and behavior evolution. We identified signatures of positive selection in genes related to nutrient homeostasis; regulation of gene expression; development and function of the nervous syste

SUBMITTER: Blaz J 

PROVIDER: S-EPMC6463014 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature