[Comparison of mitochondrial DNA in two greenling species and their hybrids (CEM. Hexagrammidae: Pisces) from Peter the Great Bay (Sea of Japan)].

Fragments of mtDNA from two greenling species, Hexagrammos octogrammus and H. agrammus, and their possible hybrids were amplified in PCR and examined using RFLP analysis. The inferred sequence difference between the species was 6.6%, which corresponds to about 3 Myr of their divergence. The reproductive contribution of males and females to the hybrids was estimated.