Genetic and Morphological Variation in Natural Populations of the Red Shiner, Notropis lutrensis, and their Relationship to Adaptation in a Generalist Species Page: 2
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Wooten, Michael C. Genetic and Morphological
Variation in Natural Populations of the Red Shiner,
Notropis lutrensis, and their Relationship to Adaptation
in a Generalist Species. Doctor of Philosophy
(Biological Sciences), May 1984, 189 pp., 16 tables,
27 figures, bibliography, titles.
Twenty-two natural populations of the red shiner
minnow, Notropis lutrensis were examined for morpho-
logical and genetic variation. This research was aimed
at testing the hypothesis that morphological and genetic
variation was primarily influenced by the degree of gene
flow between populations. Ten linear measurements were
taken from each of 1320 specimens. Morphological char-
acters were adjusted for differential growth by least
squares linear regression techniques. Genetic vari-
ability was estimated for each individual red shiner
through the methods of starch gel electrophoresis.
Twenty presumtive gene loci were resolved.
Analysis of raw and size-scaled morphological
characters indicated that red shiners were different in
shape. It was suggested that size differences between
males and females may be related to differential
metabolic responses following sexual maturity.
Genetically, males appeared to be less variable than
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Wooten, Michael Conrad. Genetic and Morphological Variation in Natural Populations of the Red Shiner, Notropis lutrensis, and their Relationship to Adaptation in a Generalist Species, dissertation, May 1984; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc331839/m1/2/: accessed May 7, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .