Genetic Relationship between Lake and Marine Forms of Pacific Herring Clupea pallasii
Journal of Ichthyology(2020)
摘要
Polymorphism in the variable fragment of the mtDNA control region (D-loop, 373 bp) and four microsatellite loci in 683 specimens of the Pacific herring Clupea pallasii sampled at different locations from the Asian part of range has been studied. It is shown that the Pacific herring lake forms inhabiting the three lakes on Sakhalin Island (Ainskoe) and in the Kamchatka Peninsula (Vilyuy and Nerpiche) have significantly diverged from the marine forms according to the data on the mtDNA and nDNA markers. The genetic variations among the herring forms inhabiting different lakes ( F ST = 0.034−0.066) and between the lake herring forms and marine herring forms ( F ST = 0.004−0.055) are revealed. The level of the genetic differentiation among the lake herring forms is much higher than that among the samples of the marine herring forms, which may be explained by the founder effect. Evolution of the lake forms occurred along with the geological processes producing the lakes.
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关键词
Pacific herring Clupea pallasii
, lake herring form, mtDNA control region, D-loop, microsatellite markers
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