Document Detail


Morphological and microsatellite differentiation in Melospiza melodia (Aves) at a microgeographic scale.
MedLine Citation:
PMID:  14635909     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Geographical variation in microsatellite allele frequencies and morphology were compared for five subspecies of Melospiza melodia (song sparrow; M. m. samuelis, M. m. maxillaris, M. m. pusillula, M. m. gouldii, and M. m. heermanni) in 14 populations in the San Francisco Bay region to (a) assess divergence based on these estimates and (b) test the hypothesis that drift is responsible for morphological and genetic divergence. Morphological differentiation between subspecies was high despite low differentiation at microsatellite loci, indicating high gene flow and large effective population sizes. Low concordance of morphological and genetic estimates of divergence suggests that selection or phenotypic plasticity in morphology has caused morphological differentiation among the subspecies.
Authors:
Y Chan; P Arcese
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Journal of evolutionary biology     Volume:  16     ISSN:  1010-061X     ISO Abbreviation:  J. Evol. Biol.     Publication Date:  2003 Sep 
Date Detail:
Created Date:  2003-11-25     Completed Date:  2003-12-09     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8809954     Medline TA:  J Evol Biol     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  939-47     Citation Subset:  IM    
Affiliation:
Department of Forest Sciences, Centre for Applied Conservation Research, University of British Columbia, Vancouver, B.C., Canada. yvonchan@stanford.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Evolution*
Female
Genetic Variation*
Geography
Male
Microsatellite Repeats*
Phenotype
Population Dynamics
Songbirds* / anatomy & histology,  genetics

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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