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当前位置: 首页 > 文章 > 西农萨能奶山羊CSN1S2基因多态与产奶量、体尺指标的相关分析 畜牧兽医学报 2005,36 (4) 318-322
Position: Home > Articles > Association of Polymorphisms of CSN1S2 Gene with Average Milk Yield and Body Sizes Indexes in Xinong Saanen Dairy Goat Chinese Journal of Animal and Veterinary Sciences 2005,36 (4) 318-322

西农萨能奶山羊CSN1S2基因多态与产奶量、体尺指标的相关分析

作  者：
蓝贤勇;陈宏;张润锋;田燚;张永德;房兴唐;孙维斌;雷初朝;胡沈荣
单  位：
徐州师范大学生命科学学院生物技术研究所;西北农林科技大学动物科技学院
关键词：
萨能奶山羊;CSN1S2基因;相关分析
摘  要：
利用PCR2RFLP技术对69只西农萨能奶山羊的CSN1S2基因进行多态性分析。扩增产物为310bp的CSN1S2F基因片段,被Alw26I限制性内切酶消化后表现多态性。F等位基因为310bp,N等位基因为179和131bp,相应地,FF基因型为310bp,NF基因型为310,179和131bp,NN基因型为179和131bp。在该群体中,F等位基因频率为010870,N等位基因频率为019130,处于Hardy2Weinberg平衡状态。将西农萨能奶山羊CSN1S2F基因座不同基因型与平均产奶量进行相关分析,结果表明:CSN1S2的不同基因型对平均产奶量有显著影响,NN基因型个体产奶量最高,FF基因型个体产奶量最低,且FF基因型个体平均产奶量显著低于NN基因型个体(P<0105)。将西农萨能奶山羊CSN1S2F基因座不同基因型与体尺指标进行相关分析,结果表明:在初生重和体高指标上,NF基因型个体显著优于NN基因型个体(P<0105);在体斜长和管围指标上,NF基因型个体略优于NN基因型个体,但差异不显著(P>0105);在成年体重和胸围指标上,不同的基因型个体间无差异。
译  名：
Association of Polymorphisms of CSN1S2 Gene with Average Milk Yield and Body Sizes Indexes in Xinong Saanen Dairy Goat
作  者：
LAN Xian-yong~1,CHEN Hong~(1,2*), ZHANG Run-feng~1, TIAN Yi~1, ZHANG Yong-de~1,FANG Xing-tang~2,SUN Wei-bin~1, LEI Chu-zhao~1, HU Shen-rong~1(1.Shaanxi Key Laboratory of Agricultural Molecular Biology,College of Animal Science and Technology, Northwest Science and Technology University of Agriculture and Forestry, Yangling 712100,China;2. Institute of Biotechnology, College of Life Science,Xuzhou Normal University, Xuzhou 221116, China)
关键词：
Xinong Saanen dairy goat; CSN1S2 gene; correlation analysis
摘  要：
PCR-RFLP technique was used to analyze the polymorphisms of CSN1S2~F loci in 69 Xinong Saanen dairy goats. 310 bp fragment of CSN1S2~F gene digested with Alw26I demonstrated polymorphisms, namely, allele F with only one 310 bp band and allele N with 179 bp, 131 bp bands. Correspondingly, it showed that genotype FF of individuals had 310 bp band, genotype NF of individuals had 310 bp, 179 bp and 131 bp bands, and genotype NN of individual had 179 bp and 131 bp bands. In this Xinong Saanen goat population, gene frequencies of allele F and N were 0.087 0 and 0.913 0, respectively, which was at Hardy-Weinberg equilibrium (P>0.05). Analyzing correlation between different genotypes of CSN1S2 gene and average milk yield, we could find that different genotypes had significantly effect on average milk yield. In average milk yield index, milk yield of individual with genotype NN was the highest, and genotype NN were prior to FF genotype (P<0.05). Association different genotypes of CSN1S2 gene with body size indexes indicated that individual with genotype NF was better than those of genotype NN in body weight and stature (P<0.05), and individuals with genotypes NF and NN had no significant difference in other indexes (P>0.05), such as body size, shank girth and body weight.

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