| 牙鲆养殖群体遗传结构的研究 |
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| 引用本文： | 黎中宝.牙鲆养殖群体遗传结构的研究[J].海洋学报,2004,26(3):102-108. |
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| 作者姓名： | 黎中宝 |
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| 作者单位： | 集美大学水产学院 福建厦门361021，厦门大学海洋与环境学院，福建厦门361005 |
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| 基金项目： | 福建省重点科技攻关资助项目(2002N020). |
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| 摘 要： | 应用聚丙烯酰胺凝胶电泳技术研究了牙鲆养殖群体(F1代)的遗传结构.结果表明,牙鲆养殖群体具有较高的遗传多样性水平.牙鲆群体平均每位点等位基因数的变化为1.19(0.11)～1.24(0.10).多态位点百分数的变化为14.29%～23.81%.期望杂合度的变化为0.056(0.036)～0.057(0.033).观察杂合度的变化为0.099(0.065)～0.104(0.065).牙鲆群体间遗传分化较低,群体间分化度为0.005,表明总的遗传变异中有99.5%来自群体内,有0.5%来自群体间.群体间遗传距离和遗传一致度均值分别为0.001和0.999.群体间基因流很大,等于49.75.
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| 关 键 词： | 牙鲆 等位酶 遗传结构 遗传多样性 遗传分化 |
| 文章编号： | 0253-4192(2004)03-0102-07 |
| 收稿时间： | 2003/5/20 0:00:00 |
| 修稿时间： | 2003/8/25 0:00:00 |
Genetic structure of cultivated stocks in Paralichthys olivaceus |
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| LI Zhong-bao.Genetic structure of cultivated stocks in Paralichthys olivaceus[J].Acta Oceanologica Sinica (in Chinese),2004,26(3):102-108. |
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| Authors: | LI Zhong-bao |
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| Institution: | LI Zhong-bao~ |
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| Abstract: | Genetic structure of cultivated stocks was investigated using the assay of vertical slab polyacr ylamidegel electrophoresis in Paralichthys olivaceus.Higher level of genetic diversity in the stocks was found:Mean number of alleles perlocus(A) is 1.19(0.11)~1.24(0.10),percentage of polymorphic loci(P0.99) is 14.29%~23.81%, the observed heterozygosity(Ho) is 0.099(0.065)~0.104(0.065),expected heterozygosity(He) is 0.056 (0.036)~0.057(0.033).The results showed that the coefficient of gene differentiation between the stocks is low,Fst=0.005,there is no significant difference in biochemical genetic character istics among the stocks.The genetic distance and genetic identity is 0.001 and 0.999 respectively.Gene flow among the stocks is large(Nm=49.75). |
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| Keywords: | Paralichthys olivaceus allozyme genetic structure genetic diversity genetic differentiation |
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