Genetic differentiation across the social transition in a socially polymorphic sweat bee, Halictus rubicundus

A. Soro, J. Field, C. Bridge, S.C. Cardinal, Robert Paxton

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Eusociality is widely considered a major evolutionary transition. The socially polymorphic sweat bee Halictus rubicundus, solitary in cooler regions of its holarctic range and eusocial in warmer parts, is an excellent model organism to address this transition, and specifically the question of whether sociality is associated with a strong barrier to gene flow between phenotypically divergent populations. Mitochondrial DNA (COI) from specimens collected across the British Isles, where both solitary and social phenotypes are represented, displayed limited variation, but placed all specimens in the same European lineage; haplotype network analysis failed to differentiate solitary and social lineages. Microsatellite genetic variability was high and enabled us to quantify genetic differentiation among populations and social phenotypes across Great Britain and Ireland. Results from conceptually different analyses consistently showed greater genetic differentiation between geographically distant populations, independently of their social phenotype, suggesting that the two social forms are not reproductively isolated. A landscape genetic approach revealed significant isolation by distance (Mantel test r = 0.622, p
Original languageEnglish
Pages (from-to)3351-3363
Number of pages13
JournalMolecular Ecology
Volume19
Issue number16
DOIs
Publication statusPublished - Aug 2010

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Genetics

Fingerprint Dive into the research topics of 'Genetic differentiation across the social transition in a socially polymorphic sweat bee, Halictus rubicundus'. Together they form a unique fingerprint.

  • Cite this