Differentiation of large-scaled redfin Tribolodon hakonensis (Pisces, Cyprinidae) in the Russian part of the range as inferred from the data of karyological analysis and PCR-RFLP analysis of mitochondrial DNA

Differentiation of large-scaled redfin Tribolodon hakonensis (Pisces, Cyprinidae) in the Russian... Considerable differences in karyotypes of Tribolodon hakonensis from Primorye and the rivers of the Sea of Okhotsk drainage were demonstrated. These differences raise doubts that these fishes belong to one species and point to the necessity of more precise definition of the species status of the southern form of T. hakonensis. The karyological evidence is consistent with the data of mtDNA PCR-RFLP analysis on genetic independence of the southern and the northern forms of T. hakonensis. In the northern form of T. hakonensis, variation of the chromosomal arm number was revealed. Specifically, the number of chromosomes was constant (2n = 50), whereas the number of chromosomal arms (NF) constituted 88, 92, and 94, which suggests genetic heterogeneity of the northern form. PCR-RFLP analysis of mtDNA showed that haplotypes of northern T. hakonensis split into two groups with 100% support. Based on comparative phylogenetic and karyological analyses of the Tribolodon species, independent divergence of the southern and the northern forms of T. hakonensis was suggested. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Differentiation of large-scaled redfin Tribolodon hakonensis (Pisces, Cyprinidae) in the Russian part of the range as inferred from the data of karyological analysis and PCR-RFLP analysis of mitochondrial DNA

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2012 by Pleiades Publishing, Ltd.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795412020147
Publisher site
See Article on Publisher Site

Abstract

Considerable differences in karyotypes of Tribolodon hakonensis from Primorye and the rivers of the Sea of Okhotsk drainage were demonstrated. These differences raise doubts that these fishes belong to one species and point to the necessity of more precise definition of the species status of the southern form of T. hakonensis. The karyological evidence is consistent with the data of mtDNA PCR-RFLP analysis on genetic independence of the southern and the northern forms of T. hakonensis. In the northern form of T. hakonensis, variation of the chromosomal arm number was revealed. Specifically, the number of chromosomes was constant (2n = 50), whereas the number of chromosomal arms (NF) constituted 88, 92, and 94, which suggests genetic heterogeneity of the northern form. PCR-RFLP analysis of mtDNA showed that haplotypes of northern T. hakonensis split into two groups with 100% support. Based on comparative phylogenetic and karyological analyses of the Tribolodon species, independent divergence of the southern and the northern forms of T. hakonensis was suggested.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Feb 20, 2012

References

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