Phylogeographic analysis reveals two periods of divergence in large-scaled redfin Tribolodon hakonensis (Pisces, Cyprinidae)

Phylogeographic analysis reveals two periods of divergence in large-scaled redfin Tribolodon... Analysis of mtDNA variation in one of the amphidromic Far Eastern redfins, Tribolodon hakonensis, revealed the presence of three considerably genetically different mtDNA phylogroups in the individuals from the Russian part of the range. These data suggest the presence of the two periods of divergent evolution in the history of the species examined. Comparison of the haplotype distributions from different phylogroups over the species range revealed geographic localization of only one phylogroup in the population samples from southern continental coastal regions of the Sea of Japan. At the same time, two other phylogroups were found in almost equal ratios in northern continental samples and near the Sakhalin Island. These results suggest that the first stage of the divergent evolution, which occured between Pliocene and Pleistocene, resulted in the formation of genetically isolated form (probably, a species) in the region of the Sea of Japan. The second, later period of divergence, probably associated with the separation of the Sea of Okhotsk from the Pacific Ocean then ended with the integration of earlier genetically separated forms into one species with the common gene pool. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Phylogeographic analysis reveals two periods of divergence in large-scaled redfin Tribolodon hakonensis (Pisces, Cyprinidae)

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Publisher
Springer Journals
Copyright
Copyright © 2011 by Pleiades Publishing, Ltd.
Subject
Biomedicine; Human Genetics; Microbial Genetics and Genomics; Animal Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795411090031
Publisher site
See Article on Publisher Site

Abstract

Analysis of mtDNA variation in one of the amphidromic Far Eastern redfins, Tribolodon hakonensis, revealed the presence of three considerably genetically different mtDNA phylogroups in the individuals from the Russian part of the range. These data suggest the presence of the two periods of divergent evolution in the history of the species examined. Comparison of the haplotype distributions from different phylogroups over the species range revealed geographic localization of only one phylogroup in the population samples from southern continental coastal regions of the Sea of Japan. At the same time, two other phylogroups were found in almost equal ratios in northern continental samples and near the Sakhalin Island. These results suggest that the first stage of the divergent evolution, which occured between Pliocene and Pleistocene, resulted in the formation of genetically isolated form (probably, a species) in the region of the Sea of Japan. The second, later period of divergence, probably associated with the separation of the Sea of Okhotsk from the Pacific Ocean then ended with the integration of earlier genetically separated forms into one species with the common gene pool.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Nov 11, 2011

References

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