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Glacial survival and local adaptation in an alpine leaf beetle

Published on Jun 1, 2007in European Journal of Soil Science2.82
· DOI :10.1111/j.1365-294X.2007.03318.x
Nicolas Margraf9
Estimated H-index: 9
,
Aline Verdon2
Estimated H-index: 2
+ 1 AuthorsRussell E. Naisbit17
Estimated H-index: 17
Abstract
The challenge in defining conservation units so that they represent evolutionary entities has been to combine both genetic properties and ecological significance. Here we make use of the complexity of the European Alps, with their genetic landscape shaped by geographical barriers and postglacial colonization, to examine the correlation between ecological and genetic divergence. Montane species, because of the fragmentation of their present habitat, constitute extreme cases in which to test if genetically distinct subgroups based on neutral markers are also ecologically differentiated and show local adaptation. In the leaf beetle Oreina elongata , populations show variation in host plant use and a patchy distribution throughout the Alps and Apennines. We demonstrate that despite very strong genetic isolation ( F ST = 0.381), variation in host plant use has led to differences in larval life-history traits between populations only as a secondary effect of host defence chemistry, and not through physiological adaptation to plant nutritional value. We also establish that populations that are more ecologically different in terms of larval performance are also more genetically divergent. In addition, morphological variation used to define subspecies appears to be mirrored in the population genetics of this species, resulting in almost perfect clustering based on microsatellite data. Finally, we argue from their strong genetic structure and congruent distribution that the subspecies of O. elongata were divided among the same glacial refugia within the Alps that have been proposed for alpine plants.
  • References (59)
  • Citations (26)
References59
Newest
#1Steffen U. Pauls (AMNH: American Museum of Natural History)H-Index: 24
#2H. Thorsten LumbschH-Index: 51
Last.Peter Haase (AMNH: American Museum of Natural History)H-Index: 34
view all 3 authors...
#1Peter Schönswetter (AMNH: American Museum of Natural History)H-Index: 37
#2Ivana Stehlik (U of T: University of Toronto)H-Index: 20
Last.Andreas Tribsch (AMNH: American Museum of Natural History)H-Index: 29
view all 4 authors...
#1Xue-Jun Ge (CAS: Chinese Academy of Sciences)H-Index: 32
#2Zhang LiAng (CAS: Chinese Academy of Sciences)H-Index: 14
Last.Tzen-Yuh Chiang (NCKU: National Cheng Kung University)H-Index: 11
view all 5 authors...
Cited By26
Newest
#1Thomas Schmitt (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 27
#1Christophe Dufresnes (UNIL: University of Lausanne)H-Index: 14
#2S. N. Livinchuk (RAS: Russian Academy of Sciences)H-Index: 16
Last.Nicolas Perrin (UNIL: University of Lausanne)H-Index: 44
view all 7 authors...
#1Marius JunkerH-Index: 5
#2Marie Zimmermann (François Rabelais University)H-Index: 3
Last.Thomas Schmitt (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 27
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#1J. F. Scheepens (University of Basel)H-Index: 12
#2Eva S. Frei (University of Basel)H-Index: 7
Last.Jürg Stöcklin (University of Basel)H-Index: 32
view all 3 authors...
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