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SUMMARY:Drift\, draft and structure: modelling evolution in a spatial cont
 inuum - Alison Etheridge\,  Oxford (TBC)
DTSTART:20091103T160000Z
DTEND:20091103T173000Z
UID:TALK19783@talks.cam.ac.uk
CONTACT:Berestycki
DESCRIPTION:One of the outstanding successes of mathematical population ge
 netics is Kingman's coalescent. This process provides a simple and elegant
  description of the genealogical trees relating individuals in a sample of
  neutral genes from a panmictic population\, that is\, one in which every 
 individual is equally likely to mate with every other and all individuals 
 experience the same conditions. But real populations are not like this. Sp
 urred on by the recent flood of DNA sequence data\, an enormous industry h
 as developed that seeks to extend Kingman's coalescent to incorporate thin
 gs like variable population size\, natural selection and spatial and genet
 ic structure. But a satisfactory approach to populations evolving in a spa
 tial continuum has proved elusive. In this talk we describe the effects of
  some of these biologically important phenomena on the genealogical trees 
 before describing a new approach (joint work with Nick Barton\, IST Austri
 a) to modelling the evolution of populations distributed in a spatial cont
 inuum. 
LOCATION:MR12\, CMS\, Wilberforce Road\, Cambridge\, CB3 0WB
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