鸡MC3R基因多态性及其与屠体和肉质性状的相关性  

Genetic Diversity of MC3R Gene and Its Association with Slaughter Traits and Meat Quality Traits in Chickens

作　　者：王彦[1] 苏毅[1] 刘益平[1] 蒋小松[2] 李亮[1] 杜华锐[2] 朱庆[1] 

机构地区：[1]四川农业大学动物科技学院,雅安625014 [2]四川省畜牧科学研究院,成都610066

出　　处：《畜牧兽医学报》2007年第10期1027-1031,共5页ACTA VETERINARIA ET ZOOTECHNICA SINICA

基　　金：四川省畜禽育种攻关项目资助(01NG002-06)

摘　　要：以四川大恒家禽育种有限公司和四川省畜牧科学研究院培育的5个新品系纯系和3个杂交系鸡群为试验材料,对MC3R基因进行PCR扩增,采用PCR-SSCP技术结合测序分析了MC3R基因在上述鸡群中的多态性。结果表明:8个鸡群中存在A 1424 G的突变。经过基因型与屠体性状的关联分析得知:各基因型除与半净膛率(SEP)和腿肌率(LMP)无显著影响(P>0.05)外,对其它屠体性状则有显著(P<0.05)和极显著影响(P<0.01);与肉质性状相关分析结果显示,1424位点仅对粗蛋白(CP)含量和肌内脂肪含量(IMF)影响显著(P<0.05)。In present study,8 populations （including 5 pure lines and 3 crossbreeds developed by Dahen Poultry Breeding Company and Sichuan Animal Science Academy） were used to analyze MC3R gene polymorphism by PCR-SSCP. Result indicated that there was one mutation sites in 8 populations （A 1424 G）. The statistics analysis results showed that the MC3R polymorphism was no significant difference for SEP and LMP trait （P〉 0.05）, while there were significant difference （P〈0.05） and high significant difference （P〈0.01） for other slaughter traits. In addition, the significant difference of CP and IMF value were also observed only at meat quality traits （P〈0.05）.

关 键 词：鸡 MC3R基因 单核苷酸多态性 屠体及肉质性状 

分 类 号：S831.2[农业科学—畜牧学]