Evolutionary Implications of Genic Variation among Insular Populations of Peromyscus maniculatus and Peromyscus oreas
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A survey of electrophoretic variation in proteins encoded by 24 gene loci revealed differences in allele frequencies between two karyotypically characterized species of deer mice from Vancouver Island and smaller islands in the Queen Charlotte Strait and Strait of Georgia. Patterns of geographic variation evident in morphological analyses, summarized in the recognition of P. maniculatus austerus and three subspecies of P. oreas (P.o. oreas, P.o. interdictus, P.o. isolatus) from Pacific regions of British Columbia and Washington, may stem from genetic factors related to peripheral isolation of P. oreas from P. maniculatus and interspecific differences in dispersal abilities. -from Authors
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Calhoun, S. W., & Greenbaum, I. F.