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Formation of the Population Structure of the Atlantic Cod Gadus morhua Linnaeus, 1758 in the Quaternary Period

机译:第四纪大西洋鳕鱼(Gadus morhua Linnaeus)人口结构的形成,1758年

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摘要

This paper presents a comparative analysis of the variability of genetic characteristics in samples from the largest stocks of the Atlantic cod Gadus morhua Linnaeus, 1758 in the Northeast Atlantic (NEA) and the Northwest Atlantic (NWA) waters. The results of a pairwise estimation of the genetic differentiation, performed using allozyme and microsatellite markers, detected a significant difference between the cod sample from the New England Shelf (NWA) and the cod of the Icelandic-Greenlandic and Norwegian-Barents Sea stocks. At the same time, cod samples from areas of East and West Greenland and samples from the Barents Sea, despite considerable geographic differences, demonstrated a high level of identity according to molecular genetic markers. The peculiarities of the formation of the cod population structure in the Quaternary period are considered in connection with the dynamics of global climatic and oceanological processes.
机译:本文对来自大西洋鳕鱼(Gadus morhua Linnaeus,1758)在东北大西洋(NEA)和西北大西洋(NWA)水域中最大种群的样本中遗传特性的变异性进行了比较分析。使用同工酶和微卫星标记对遗传分化进行成对估计的结果,发现新英格兰大陆架(NWA)的鳕鱼样本与冰岛格陵兰和挪威-巴伦支海种群的鳕鱼之间存在显着差异。同时,尽管地理差异很大,但东西格陵兰的鳕鱼样品和巴伦支海的样品根据分子遗传标记仍显示出很高的同一性。考虑到第四纪期间鳕鱼种群结构形成的特殊性,与全球气候和海洋过程的动力学联系在一起。

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