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Comparative mitochondrial DNA sequence diversity in isolated and open populations of Southern flying squirrels (Glaucomys volans)

by Melaney Birdsong Cook

Institution:	University of North Texas
Department:
Degree:
Year:	1999
Keywords:	Flying squirrels – Arkansas – Genetics.; Population genetics – Arkansas.; Ouachita Mountains; island formation; population genetics
Posted:
Record ID:	1704582
Full text PDF:	http://digital.library.unt.edu/ark:/67531/metadc2222/

Abstract

Three populations of Southern flying squirrels were studied in the Ouachita Mountains of Arkansas to assess the impact of population subdivision-due to island formation – on the population genetics of Glaucomys volans. One island, one mainland, and one open population were investigated. A 367 nucleotide hypervariable region of mitochondrial DNA was sequenced in individuals from each population. Individuals and populations were compared to assess relatedness. Higher sequence diversity was detected in the open and island populations. One island individual shared characters with both the island and mainland populations. Results support the hypothesis that the mainland population may have reduced gene flow. Also, the island population may have been originally founded by at least two maternal lineages.