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Quaternary Climate Instability Is Correlated With Patterns Of Population Genetic Variability In Bombus Huntii, Jonathan B. Koch, Rémy Vandame, Jorge Mérida-Rivas, Philippe Sagot, James Strange
Quaternary Climate Instability Is Correlated With Patterns Of Population Genetic Variability In Bombus Huntii, Jonathan B. Koch, Rémy Vandame, Jorge Mérida-Rivas, Philippe Sagot, James Strange
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Climate oscillations have left a significant impact on the patterns of genetic diversity observed in numerous taxa. In this study, we examine the effect of Quaternary climate instability on population genetic variability of a bumble bee pollinator species, Bombus huntii in western North America. Pleistocene and contemporary B. huntii habitat suitability (HS) was estimated with an environmental niche model (ENM) by associating 1,035 locality records with 10 bioclimatic variables. To estimate genetic variability, we genotyped 380 individuals from 33 localities at 13 microsatellite loci. Bayesian inference was used to examine population structure with and without a priori specification of geographic …