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山西白猪DECR1基因多态性与生长性状的关联分析
引用本文:李步高,李根银,王效京,李游山,曹果清,周忠孝.山西白猪DECR1基因多态性与生长性状的关联分析[J].中国畜牧兽医,2009,36(12):70-73.
作者姓名:李步高  李根银  王效京  李游山  曹果清  周忠孝
作者单位:(1.山西农业大学动物科技学院, 太谷 030801; 2.山西省畜禽繁育工作站, 太原 030000;3.西南大学蚕学与系统生物学研究所, 重庆 400715)
基金项目:山西省科技攻关项目,国家农业科技成果转化项目 
摘    要:采用PCR-SSCP方法检测了192头山西白猪DECR1基因第5外显子位点的多态性,并采用最小二乘法拟合线性模型(GLM)对该位点多态性与山西白猪生长性状的关联性进行了分析。结果表明,DECR1基因第5外显子位点存在多态性,表现出CC、CD、DD 3种不同基因型。DECR1基因不同基因型对山西白猪6月龄体重、体高和胸围均有显著影响。CD基因型个体6月龄体重、体高、胸围都显著高于DD型个体(P<0.05);3种基因型对体长的影响均未达到显著水平(P>0.05),但呈现出CD>CC>DD的趋势;3种基因型对背膘厚的影响差异不显著(P>0.05),但呈现出CC<CD<DD的趋势。因此,初步推定CD基因型对选择有正向遗传效应。

关 键 词:DECR1基因  生长性状  多态性  PCR-SSCP  猪  

The Associations between Polymorphisms within DECR1 Gene and Growth Traits of Shanxi White Pigs
LI Bu-gao,LI Gen-yin,WANG Xiao-jing,LI You-shan,CAO Guo-qing,ZHOU Zhong-xiao.The Associations between Polymorphisms within DECR1 Gene and Growth Traits of Shanxi White Pigs[J].China Animal Husbandry & Veterinary Medicine,2009,36(12):70-73.
Authors:LI Bu-gao  LI Gen-yin  WANG Xiao-jing  LI You-shan  CAO Guo-qing  ZHOU Zhong-xiao
Institution:(1. College of Animal Science, Shanxi Agricultural University, Taigu 030801, China;2. Shanxi Animal Breeding Station, Taiyuan 030000, China;3. Institute of Silkworm and Systematic Biology, Southwest University, Chongqing 400715, China)
Abstract:The polymorphisms in the 5th exon of DECR1 gene were detected using PCR-SSCP in 192 Shanxi white pigs.And the effects of different genotypes on growth traits of Shanxi white were analyzed by least square analysis.The results showed that the polymorphisms in the 5th exon site were found and three genotypes were CC,CD and DD,respectively.The polymorphisms of DECR1 gene had significant association(P<0.05) with body weight,body height and chest girth at six-month age.Pigs with genotype CD had significantly high...
Keywords:PCR-SSCP
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