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CATEGORIES:Behaviour\, Ecology &amp\; Evolution Seminar Serie
 s
SUMMARY:Ecological genetics of life history and host plant
  adaptation in the Glanville fritillary butterfly 
 - Maaike de Jong - University of Helsinki\, Finlan
 d
DTSTART;TZID=Europe/London:20121023T160000
DTEND;TZID=Europe/London:20121023T170000
UID:TALK37948AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/37948
DESCRIPTION:To gain a full understanding of the mechanisms und
 erlying fitness and adaptation\, it is crucial to 
 consider the ecological conditions that shape evol
 utionary dynamics in nature. The extent of environ
 mental heterogeneity plays a key role in these dyn
 amics and influences genetic and phenotypic variat
 ion in wild populations. Using the well-studied Gl
 anville fritillary butterfly metapopulation of the
  Åland Islands in Finland\, we measured life histo
 ry traits and female host plant preference of wild
  butterflies in large outdoor population cages and
  associated trait variation with SNPs in candidate
  genes. We discovered a strong association between
  a genetic polymorphism in a gene of the Cytochrom
 e P450 family and lifetime reproductive output of 
 the butterflies\, the key component of fitness. Th
 e specific Cyp gene plays an important role in the
  detoxification of host plant chemicals (alleloche
 micals) in butterflies and other species. Previous
  research has shown that the Glanville fritillary 
 Åland population exhibits spatial variation in hos
 t plant adaptation involving two plant species\, P
 lantago lanceolata and Veronica spicata\, which sh
 ow differences in allelochemical levels. We show h
 ere that the Cyp genotype is associated with host 
 plant preference and that there is a strong correl
 ation between Cyp allele frequencies and host plan
 t preference across the Åland Islands. Our results
  suggest that the spatial heterogeneity of the hab
 itat may contribute to the maintenance of genetic 
 variation in Cyp through local adaptation.
LOCATION:Main Lecture Theatre\, Department of Zoology
CONTACT:Oskar Brattstrom
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