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Evolutionary genetics of the endemic Schizorathicine (Cypriniformes: Cyprinidae) fishes of Lake Rara, Nepal

The three endemic species of Schizothorax from Lake Rara, Nepal comprise a putative cyprinid species flock. Mitochondrial DNA sequences were compared for specimens of the endemic species S. raraensis, S. macrophthalmus, and S. nepalensis, and specimens of S. richardsonii and S. progastus from the Ka...

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Published in:Biochemical systematics and ecology 2002-11, Vol.30 (10), p.919-929
Main Authors: Dimmick, Walter Wheaton, Edds, David R.
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description The three endemic species of Schizothorax from Lake Rara, Nepal comprise a putative cyprinid species flock. Mitochondrial DNA sequences were compared for specimens of the endemic species S. raraensis, S. macrophthalmus, and S. nepalensis, and specimens of S. richardsonii and S. progastus from the Karnali River, Koshi River, and Kali Gandaki River drainages. An analysis of molecular variance demonstrated that S. nepalensis is genetically distinct from a group composed of S. raraensis and S. macrophthalmus. Phylogenetic analyses based on parsimony failed to corroborate or conclusively reject a hypothesis of monophyly for the three endemic species of Schizothorax from Lake Rara. The mtDNA haplotypes of S. richardsonii and S. progastus from the Karnali River drainage were not significantly differentiated from one another, but pairwise comparisons of haplotypes from the Lake Rara basin, Karnali River drainage, Koshi River drainage, and Kali Gandaki River drainage were significantly differentiated from one another.
doi_str_mv 10.1016/S0305-1978(02)00030-3
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ispartof Biochemical systematics and ecology, 2002-11, Vol.30 (10), p.919-929
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source ScienceDirect Journals
subjects Cyprinidae
Cypriniformes
mtDNA
S chizothorax
Species flock
title Evolutionary genetics of the endemic Schizorathicine (Cypriniformes: Cyprinidae) fishes of Lake Rara, Nepal
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