Document Detail

Extensive gene flow characterizes the phylogeography of a North American migrant bird: Black-headed Grosbeak (Pheucticus melanocephalus).
MedLine Citation:
PMID:  24841539     Owner:  NLM     Status:  Publisher    
We describe range-wide phylogeographic variation in the Black-headed Grosbeak (Pheucticus melanocephalus), a songbird that is widely distributed across North American scrublands and forests. Phylogenetic analysis of mitochondrial DNA (mtDNA, n=424) revealed three geographically structured clades. One widespread clade occurs throughout the Rocky Mountains, Great Basin, and Mexican Plateau, a second clade is found on the Pacific coast and in coastal ranges; and, a third in the Sierra Madre del Sur of Oaxaca and Guerrero. Some geographical structuring occurs in Mexican Plateau and Sierra Madre Oriental mtDNA clade, presumably because these populations have been more stable over time than northern populations. Multiple mitochondrial groups are found sympatrically in the Okanogan River Valley in Washington, the eastern Sierra Nevada, and the Transvolcanic Belt across central Mexico, indicating that there is a potential for introgression. Analyses of 12 nuclear loci did not recover the same geographically structured clades. Population analyses show high levels of gene flow in nucDNA from the Interior into the Sierra Madre del Sur and Pacific population groups, possibly indicating expansion of the Interior population at the expense of peripheral populations.
Paul van Els; Garth M Spellman; Brian Tilston Smith; John Klicka
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-5-16
Journal Detail:
Title:  Molecular phylogenetics and evolution     Volume:  -     ISSN:  1095-9513     ISO Abbreviation:  Mol. Phylogenet. Evol.     Publication Date:  2014 May 
Date Detail:
Created Date:  2014-5-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9304400     Medline TA:  Mol Phylogenet Evol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014 Elsevier Inc. All rights reserved.
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