Variation of mitochondrial DNA in Far Eastern mullet pilengas, Liza haematocheilus Temminck and Schlegel, acclimatized in the Azov-Black Sea basin

• Published in: Russian journal of genetics Vol. 43; no. 9; pp. 1062 - 1065
• Main Authors: Salmenkova, E. A., Gordeeva, N. V., Omel’chenko, V. T., Makhotkin, M. A., Dudkin, S. I.
• Format: Journal Article
• Language: English
• Published: 01.09.2007
• ISSN: 1022-7954; 1608-3369
• DOI: 10.1134/S1022795407090141

This study continues the investigation of genetic variation in the populations of native and acclimatized in the Azov-Black Sea basin pilengas from the Sea of Japan. The previous comparison based on allozyme analysis was supplemented by analysis of restriction polymorphism of a mitochondrial DNA fragment containing the cytochrome b gene and the D-loop. Five out of fifteen tested endonucleases detected polymorphic sites. In the samples of native and acclimatized pilengas, five common haplotypes were found; ten and three 'unique' haplotypes were detected in the Far Eastern and the Azov populations, respectively. The differences in haplotype distributions between these populations were highly significant (P < 0.001). The mtDNA variation was lower in the Azov than in the Far Eastern population (haplotype diversity mu respectively 6.35 plus or minus 0.27 and 9.14 plus or minus 0.55), which is in good agreement with the decrease in the number of polymorphic loci and the mean number of alleles per locus, found earlier for allozyme markers in this population. The reasons for these differences in the acclimatized population are discussed.