Geographic variation in the mitochondrial DNA of the red shiner (Cyprinella lutrensis) : the influence of Pleistocene glaciation on population dispersal and divergence /
Coastal Plain, the Great Plains, and the Central Lowlands.
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1994.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | Coastal Plain, the Great Plains, and the Central Lowlands. comprised of haplotypes from the Trinity and Calcasieu rivers Cyprinella lutrensis assayed from localities in the Gulf Despite marked geographic variation in morphometrics, Digestion patterns from 16 restriction endonucleases Divergence estimates between the basal clade, comprised of glaciated regions to the north during the mid- to late- glaciated regions was not geographically structured, and Gulf Coastal Plain possibly during the mid-Pliocene. haplotypes primarily from the Brazos River in east Texas, and haplotypes that differed in geographic distribution. identified fifty mtDNA haplotypes among 127 individuals of in east Texas and southwestern Louisiana, respectively, and in the North American cyprinid fish Cyprinella lutrensis. intrapopulational nucleotide diversity in geographic localities north of Texas and affected directly by localities outside of Texas and by geologic evidence. Maximumparsimony analysis and the neighbor joining method of meristics, and nuptial coloration, mtDNA variation in Mitochondrial (mt)DNA restriction site variation was utilized Nucleotide sequence divergence among haplotypes was highly Nucleotide sequence divergence between the second clade, phylogenetic analysis of mtDNA. Pleistocene glaciation), suggest that C. lutrensis colonized Pleistocene. This hypothesis is supported by levels of subspecies of C. lutrensis were not identifiable by the remaining two clades, place C. lutrensis in the western the third clade (comprised primarily of haplotypes from to determine if significant phylogeographic structure occurs tree construction revealed three major groupings (clades) of variable (mean + SE: 2.87% + 0.08; range: 0.14 - 9.24%). |
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| Item Description: | "Major subject: Genetics". Vita. |
| Physical Description: | ix, 83 leaves : illustrations, maps ; 28 cm. Also available online. |
| Bibliography: | Includes bibliographical references. |