Michael Fontaine: A phylogenomic portrait of radiation and introgression in the An. gambiae complex
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Datum:
08.12.2016
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Uhrzeit:
14:00 - 15:00
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Vortragende(r):
Michael Fontaine vom Groningen Institute for Evolutionary Life Sciences (GELIFES) in den Niederlanden
- Mehr Informationen unter https://michaelcfontaine.wordpress.com/
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Ort:
MPI Plön
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Raum:
Hörsaal
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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.