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引用本文:张立颖,赵 萌,李文通,袁 丁,杨贵强.虹鳟(Oncorhynchus mykiss)、溪红点鲑(Salvelinus fontinalus)及杂交种(虹鳟×溪红点鲑) 血清蛋白多态性的研究.海洋与湖沼,2013,44(6):1648-1653.
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虹鳟(Oncorhynchus mykiss)、溪红点鲑(Salvelinus fontinalus)及杂交种(虹鳟×溪红点鲑) 血清蛋白多态性的研究
张立颖,赵 萌,李文通,袁 丁,杨贵强
北京市水产科学研究所暨国家淡水渔业工程技术研究中心
摘要:
利用非变性聚丙烯酰胺凝胶电泳法, 对虹鳟、溪红点鲑及杂交种(虹鳟♀×溪红点鲑♂)的进行了血液蛋白多态性研究, 计算了各座位的基因频率、基因纯合度和Shannon信息指数, 并探讨了群体间的亲缘关系和遗传距离。结果表明: (1) 3个种群在?球蛋白、?1球蛋白、?-球蛋白、前白蛋白和白蛋白5个座位上的遗传差异较大, 血清蛋白座位的优势基因在不同群体中有不同的频率; (2) 杂交种中出现部分双亲特异条带, 表明杂交种整合了虹鳟♀和溪红点鲑♂的遗传信息, 属两性融合生殖, 是真正意义上的杂交种。(3) 杂交种与虹鳟和溪红点鲑的遗传相似性系数分别为0.718和0.575, 遗传距离分别为0.332 和0.554, 表明杂交种与两亲本的遗传差异不是对等的, 而是偏向母本一方, U PGMA系统树也同样证明了这一点。
关键词:  虹鳟, 溪红点鲑, 杂交种, 血清蛋白, 非变性聚丙烯酰胺凝胶电泳
DOI:10.11693/hyhz20130500057
分类号:
基金项目:农业部科研专项, 201003055-05 号; 北京市项目, D121100003712002 号; 北京市项目, Z121105002812114 号; 北京市项目, Z131100003113006号; 北京市局院对接项目新型循环流水养殖模式试验示范, 2013—2015 年。
附件
ZHANG Li-Ying1, ZHAO Meng2, LI Wen-Tong2, YUAN Ding2, YANG Gui-Qiang2
1.Beijing Fisheries Research Institute——National Engineering TechnologyResearch Center for Freshwater Fisheries;2.Beijing Fisheries Research Institute——National Engineering TechnologyResearch Center for Freshwater Fisheries
Abstract:
With native poly acrylamide gel electrophoresis, we analyzed the polymorphism of the serum proteins for three populations: rainbow trout, brook trout, and the hybrid [rainbow trout (♀)×brook trout (♂)]. The genotype frequencies, genetic homozygosity and Shannon's information index were calculated and the relationship and genetic distances of three populations were explored. The results revealed large difference in five serum protein (?-globulin, ?1-globulin, ?-globulin, prealbumin, and albumin) seats, and different frequencies in the dominant gene of the seats in the three populations. In addition, hybrids showed particular bands integrated from genetic information of the parents. Bisexual reproduction was found and they were indeed hybrids in geneticm aterial. The hybrid had a relative genetic similarity of 0.718 and 0.575, in genetic distance of 0.332 and 0.554 from rainbow trout and brook trout, respectively, showing more intimacy to the maternal side, which gains support from UPGMA tree additionally.
Key words:  rainbow trout  brook trout  hybrids  serum protein  native polyacrylamide gel electrophoresis
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