Genic Differentiation Between Two Chromosomal Races of Pocket Gophers, Geomys bursarius

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Genic data from two chromosomal races of Geomys bursarius from a contact zone in central Texas indicated that the two races possessed distinct gene pools which would define them as separate species. Data from proteins encoded from 21 loci in this study substantiated this hypothesis. A pattern of alternately fixed alleles at the ADH-l, MDH-2, LDH-l, and IDH-1 loci with no apparent gene flow in zones of contact strongly suggested that these two races should be designated as separate species. Levels of heterozygosity and high FST values indicate that genomic structuring within Geomys is most heavily influenced by high levels ... continued below

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vi, 60 leaves: ill.

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Bohlin, Raymond G. May 1980.

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  • Bohlin, Raymond G.

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Genic data from two chromosomal races of Geomys bursarius from a contact zone in central Texas indicated that the two races possessed distinct gene pools which would define them as separate species. Data from proteins encoded from 21 loci in this study substantiated this hypothesis. A pattern of alternately fixed alleles at the ADH-l, MDH-2, LDH-l, and IDH-1 loci with no apparent gene flow in zones of contact strongly suggested that these two races should be designated as separate species. Levels of heterozygosity and high FST values indicate that genomic structuring within Geomys is most heavily influenced by high levels of inbreeding and low migration rates. Fossorial rodents were suggested to undergo speciation primarily through parapatric means.

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vi, 60 leaves: ill.

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  • May 1980

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  • May 10, 2015, 6:16 a.m.

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  • Sept. 2, 2016, 11:09 a.m.

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Bohlin, Raymond G. Genic Differentiation Between Two Chromosomal Races of Pocket Gophers, Geomys bursarius, thesis, May 1980; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc504419/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .