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DTSTART:20170326T030000
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DTSTART:20171029T020000
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DTSTAMP:20260427T120028Z
UID:59ad282ce30f9350938752@ist.ac.at
DTSTART:20170920T123000
DTEND:20170920T133000
DESCRIPTION:Speaker: Martin Kapun\nhosted by Nick Barton\nAbstract: Clines\
 , which are gradual changes of genotypes or phenotypes along environmental
  transects\, are often taken as prima facie evidence for the action of spa
 tially varying selection. However\, only due to recent advances in sequenc
 ing technology it now becomes possible to compare genome-wide clinal patte
 rns and test for alternative models. We use the Drosophila melanogaster sy
 stem to study genomic diversity along a latitudinal temperature gradient a
 t the North American east coast. We found evidence for steep and temporall
 y stable clinal variation associated with In(3R)Payne\, a common cosmopoli
 tan inversion\, that cannot be explained by demography alone. To learn mor
 e about the potential adaptive effect of this inversion\, we compare karyo
 type-specific genomic variation on multiple different continents. We find 
 genomic regions in the center of the inversion that are in strong linkage 
 disequilibrium with the inversion breakpoints possibly as a result of sele
 ction for inversion-specific genetic variation. Finally\, with the help of
  a newly founded population genetics consortium\, we now expand the genome
 -wide analysis of clinal genomic variation to the yet largely unexplored E
 uropean continent and find further evidence for the clinal variation of In
 (3R)Payne despite complex demographic patterns.
LOCATION:I22 Lakeside View (I22.01)\, ISTA
ORGANIZER:cfraisse@ist.ac.at
SUMMARY:Martin Kapun: Clines and inversions as evidence for local adaptatio
 n in Drosophila melanogaster
URL:https://talks-calendar.ista.ac.at/events/819
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