Mitochondrial DNA phylogeography of the polytypic North American rat snake (Elaphe obsoleta): a critique of the subspecies concept.

@article{Burbrink2000MitochondrialDP,
  title={Mitochondrial DNA phylogeography of the polytypic North American rat snake (Elaphe obsoleta): a critique of the subspecies concept.},
  author={Frank T Burbrink and Robin Lawson and Joseph Slowinski},
  journal={Evolution; international journal of organic evolution},
  year={2000},
  volume={54 6},
  pages={2107-18}
}
Subspecies have been considered artificial subdivisions of species, pattern classes, or incipient species. However, with more data and modern phylogenetic techniques, some subspecies may be found to represent true species. Mitochondrial DNA analysis of the polytypic snake, Elaphe obsoleta, yields well-supported clades that do not conform to any of the currently accepted subspecies. Complete nucleotide sequences of the cytochrome b gene and the mitochondrial control region produced robust… CONTINUE READING
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