Electronic versions

Documents

  • PDB5849-00.pdf

    Accepted author manuscript, 11 MB, PDF-document

  • 1493.full

    Final published version, 1 MB, PDF-document

DOI

  • M. Malinsky
  • R.J. Challis
  • A.M. Tyers
  • S. Schiffels
  • Y. Terai
  • B.P. Ngatunga
  • E.A. Miska
  • R. Durbin
  • M.J. Genner
  • G.F. Turner
The genomic causes and effects of divergent ecological selection during speciation are still poorly understood. Here, we report the discovery and detailed characterization of earlystage adaptive divergence of two cichlid fish ecomorphs in a small (700m diameter) isolated crater lake in Tanzania. The ecomorphs differ in depth preference, male breeding color, body shape, diet and trophic morphology. With whole genome sequences of 146 fish, we identify 98 clearly demarcated genomic ‘islands’ of high differentiation and demonstrate association of genotypes across these islands to divergent mate preferences. The islands contain candidate adaptive genes enriched for functions in sensory perception (including rhodopsin and other twilight vision associated genes), hormone signaling and morphogenesis. Our study suggests mechanisms and genomic regions that may play a role in the closely related mega-radiation of Lake Malawi.
Original languageEnglish
Pages (from-to)1493-1498
JournalScience
Volume350
Issue number6267
DOIs
Publication statusPublished - 18 Dec 2015

Total downloads

No data available
View graph of relations