An Electrophoretic Analysis of Necturus from the Southeastern United States

A starch gel electrophoretic analysis of 19 loci in samples from five species of Necturus was conducted to clarify several taxonomic problems. There are two major clades in the genus; seven synapomorphies separate the N. lewisi-N. punctatus clade from that containing N. maculosus, N. beyeri, and N....

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Bibliographic Details
Published in:Journal of herpetology 1990-06, Vol.24 (2), p.163-175
Main Authors: Guttman, Sheldon I., Weigt, Lee A., Moler, Paul E., Ashton, Ray E., Mansell, Barry W., Peavy, James
Format: Article
Language:English
Subjects:
Alleles
Amphibia. Reptilia
Biological and medical sciences
Biological taxonomies
Evolution
Freshwater
Fundamental and applied biological sciences. Psychology
Genetic distance
Genetic loci
Herpetology
Larvae
Necturus
Phylogenetics
Taxa
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
Vouchers
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Summary:A starch gel electrophoretic analysis of 19 loci in samples from five species of Necturus was conducted to clarify several taxonomic problems. There are two major clades in the genus; seven synapomorphies separate the N. lewisi-N. punctatus clade from that containing N. maculosus, N. beyeri, and N. alabamensis. Within the latter, five synapomorphies distinguish N. maculosus from the remaining taxa. Necturus beyeri and N. alabamensis are genetically distinct and should be considered separate species. We suggest that N. alabamensis, as presently constituted, may represent more than one species.
ISSN:0022-1511
1937-2418
DOI:10.2307/1564224