Michael Fontaine: A phylogenomic portrait of radiation and introgression in the An. gambiae complex

  • Datum: 08.12.2016
  • Uhrzeit: 14:00 - 15:00
  • Vortragende(r): Michael Fontaine vom Groningen Institute for Evolutionary Life Sciences (GELIFES) in den Niederlanden
  • Mehr Informationen unter https://michaelcfontaine.wordpress.com/
  • Ort: MPI Plön
  • Raum: Hörsaal
  • Gastgeber: Julien Dutheil

Abstract (auf Englisch):

Introgressive hybridization is now recognized as a widespread phenomenon, but its role in evolution remains contested. Here, we use newly available reference genome assemblies and re-sequencing genome to investigate phylogenetic and population relationships and introgression in a medically important group of Afrotropical mosquito sibling species. We have identified the correct species branching order to resolve a contentious phylogeny and show that lineages leading to the principal vectors of human malaria were among the first to split. Pervasive autosomal introgression between these malaria vectors means that only a small fraction of the genome, mainly on the X chromosome, has not crossed species boundaries. Our results suggest that traits enhancing vectorial capacity may be gained through interspecific gene flow, including between nonsister species.

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