Smelts of the genus Osmerus, O. eperlanus and O. mordax dentes, inhabiting the basins of the Atlantic, Arctic, and Pacific oceans were investigated using RFLP analysis of the mitochondrial DNA segments A8/A6/COIII/ND3 and ND3/ND4, and sequencing of the cytb and COI genes (mtDNA), and intron 1 of the rpS7 gene (nDNA). A total of 14 samples from the populations from most part of the Russian range were examined. The mean values of haplotype and nucleotide diversity constituted 0.5997 ± 0.11264 and 0.003201 for O. m. dentex, and 0.3086 ± 0.09892 and 0.000431 for O. eperlanus, respectively. The high level of interspecific diversity (12.94%) along with the low level of intraspercific diversity (0.049% for O. m. dentex, and 0.001% for O. eperlanus was observed. The dendrograms (UPGMA, NJ, MP, and BA) constructed using the data of RFLP analysis of mtDNA, along with the sequencing data of mitochondrial and nuclear genes were congruent. The representatives of O. eperlanus and O. m. dentex formed steady clusters in accordance with their species affiliation, albeit without subdivision into local populations depending on their geographic locality.
Russian Journal of Genetics – Springer Journals
Published: Aug 19, 2011
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