| Comparative studies on some genetic characteristics among four large yellow croaker (Pseudosciaena crocea) populations |
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| 作者姓名： | WANG Dexiang WANG Jun DING Shaoxiong SU Yongquan |
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| 作者单位： | College of Oceanography ＆ Environmental Sciences, Xiamen University, Xiamen 361005, China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | The genetic structure was compared among four large yellow croaker (Pseudosciaena crocea) populations, an important aquaculture species in China. RAPD and ISSR results show that the genetic distances between domestic stocks and their wild counterparts are significantly larger than those between the three wild stocks. The sequence of mtDNA cyt b shows that the three wild populations share the same sequence, with differences in the four bases from the cultured stock: two transitions 57(C-T), 291(G-A)] and two transversions 66(C-G),223(A-C)]. Cluster analysis reveals that the domestic stock has diverged from its parental wild stock Min—Yuedong (Fujian Province—eastern Guangdong Province, China) stock]. Results demonstrate that 20 a of domestication of the Pseudosciaena crocea stock has resulted in significant genetic changes.
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| 关 键 词： | 遗传变异 野生族群 海洋生物 RAPD |
| 收稿时间： | 2007/1/29 0:00:00 |
| 修稿时间： | 2007-01-29 |
Comparative studies on some genetic characteristics among four large yellow croaker (Pseudosciaena crocea) populations |
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| WANG Dexiang,WANG Jun,DING Shaoxiong,SU Yongquan.Comparative studies on some genetic characteristics among four large yellow croaker (Pseudosciaena crocea) populations[J].Acta Oceanologica Sinica,2007,26(4):148-155. |
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| Authors: | WANG Dexiang WANG Jun DING Shaoxiong and SU Yongquan |
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| Institution: | College of Oceanography & Environmental Sciences, Xiamen University, Xiamen 361005, China |
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| Abstract: | The genetic structure was compared among four large yellow croaker (Pseudosciaena crocea) populations, an important aquaculture species in China. RAPD and ISSR results show that the genetic distances between domestic stocks and their wild counterparts are significantly larger than those between the three wild stocks. The sequence of mtDNA cyt b shows that the three wild populations share the same sequence, with differences in the four bases from the cultured stock: two transitions 57 ( C-T), 291 (G-A) ] and two transversions 66 (C-G) ,223 (A-C) ]. Cluster analysis reveals that the domestic stock has diverged from its parental wild stock Min-Yuedong (Fujian Province-eastern Guangdong Province, China) stock]. Results demonstrate that 20 a of domestication of the Pseudosciaena crocea stock has resulted in significant genetic changes. |
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| Keywords: | Pseudosciaena crocea genetic variation wild stock domestic stock RAPD ISSR cyt b genes |
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