中国近海与日本近海白姑鱼线粒体细胞色素b基因全序列比较分析

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中国近海与日本近海白姑鱼线粒体细胞色素b基因全序列比较分析
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作者单位:1. 中国海洋大学 海水养殖教育部重点实验室, 山东 青岛266003; 2. 中国水产科学研究院 南海水产研究所,
作者简介:李昂(1985), 男, 硕士研究生, 研究方向为鱼类分类学和种群遗传学. Tel: 0532-82032601; E-mail: angs1202@yahoo.com.cn
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基金项目:国家自然科学基金项目(30471329).

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from different locations was amplified by PCR and the sequence with total length of 1411 bp was sequenced and analyzed. According to the analysis, two distinct clades were detected, one in China’s offshore waters and another in the Japan’s offshore waters. Forty nucleotide substitutions were checked in the total sequences analyzed, and most of them were synonymous transitions at the third codon positions. Nucleotide composition analysis indicated a strong bias against guanine (G) in the complete cytochrome between Chinese and Japanese clades were 1.9% in this study. Applying divergence rate of 2%/MY, the divergence of the two clades occurred about 950 000 years before present (BP) in . The topology of Bayesian tree is similar to those of neighbor Joining tree, maximum parsimonious tree, and maximum likelihood tree, which indicated significant genetic divergency existed in white croaker between China’s offshore and Japan’s offshore.

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李昂,高天翔,孙典荣.中国近海与日本近海白姑鱼线粒体细胞色素b基因全序列比较分析[J].中国水产科学,2010,17(6):1166-1172
.[J]. Journal of Fishery Sciences of China,2010,17(6):1166-1172

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在线发布日期: 2010-11-15
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