Show simple item record Pulgararín-R, Paulo C. Burg, Theresa M. 2016-04-04T21:31:01Z 2016-04-04T21:31:01Z 2012
dc.identifier.citation Pulgarín-R, P. C., & Burg, T. M. (2012). Genetic signals of demographic expansion in downy woodpecker (Picoides pubescens) after the last North American glacial maximum. PLoS ONE, 7(7), e40412. doi:10.1371/journal.pone.0040412 en_US
dc.description Sherpa romeo green journal en_US
dc.description.abstract The glacial cycles of the Pleistocene have been recognized as important, large-scale historical processes that strongly influenced the demographic patterns and genetic structure of many species. Here we present evidence of a postglacial expansion for the Downy Woodpecker (Picoides pubescens), a common member of the forest bird communities in North America with a continental distribution. DNA sequences from the mitochondrial tRNA-Lys, and ATPase 6 and 8 genes, and microsatellite data from seven variable loci were combined with a species distribution model (SDM) to infer possible historical scenarios for this species after the last glacial maximum. Analyses of Downy Woodpeckers from 23 geographic areas suggested little differentiation, shallow genealogical relationships, and limited population structure across the species’ range. Microsatellites, which have higher resolution and are able to detect recent differences, revealed two geographic groups where populations along the eastern edge of the Rocky Mountains (Montana, Utah, Colorado, and southern Alberta) were genetically isolated from the rest of the sampled populations. Mitochondrial DNA, an important marker to detect historical patterns, recovered only one group. However, populations in Idaho and southeast BC contained high haplotype diversity and, in general were characterized by the absence of the most common mtDNA haplotype. The SDM suggested several areas in the southern US as containing suitable Downy Woodpecker habitat during the LGM. The lack of considerable geographic structure and the starburst haplotype network, combined with several population genetic tests, suggest a scenario of demographic expansion during the last part of Pleistocene and early Holocene. en_US
dc.language.iso en_CA en_US
dc.publisher Public Library of Science en_US
dc.subject Downy woodpecker en_US
dc.subject Birds -- Dispersal en_US
dc.subject Mitochondrial DNA en_US
dc.subject Last Glacial Maximum en_US
dc.subject Microsatellites (Genetics) en_US
dc.subject Population genetics en_US
dc.title Genetic signals of demographic expansion in downy woodpecker (Picoides pubescens) after the last North American glacial maximum en_US
dc.type Article en_US
dc.publisher.faculty Arts and Science en_US
dc.publisher.department Department of Biological Sciences en_US
dc.description.peer-review Yes en_US
dc.publisher.institution University of Lethbridge en_US

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