西门塔尔牛产奶性状的微卫星标记遗传效应分析  

Analysis on Effect of Microsatellite Markers on Milk Production Traits in Simmental

作　　者：方晓敏 许尚忠[1] 张英汉[2] 徐宁迎[3] 

机构地区：[1]中国农业科学院畜牧研究所,北京100094 [2]西北农林科技大学动物科技学院,杨凌712100 [3]浙江大学动物科学学院,杭州310029

出　　处：《遗传》2005年第4期571-574,共4页Hereditas（Beijing)

基　　金："十五"国家科技攻关专题(编号:2002BA518A14)~~

摘　　要：在4条染色体上选择12个微卫星标记对西门塔尔牛育种核心群6个父系组成的150头母牛产奶性状(包括乳脂、乳蛋白、乳糖、干物质含量和奶中体细胞数)进行分子标记遗传效应分析。结果表明:12个微卫星位点都具有高度多态性,杂合度(H)均在0.64～0.86之间,多态信息含量(PIC)达0.60以上,最高为0.85(ILST093);位点ILST093对奶中体细胞数有显著性影响(P<0.05);BMS711对乳脂率有显著性影响(P<0.05);BM1905与奶中乳糖含量呈显著相关(P<0.05);BM6438与5个产奶性状均无相关性。12 microsatellite markers from 4 chromosomes were chosen to analyze the effect on 5 milk production traits （including fat, lactoprotein, lactose, dry matter content and somatic cell number） of 150 cows from a 6-male-line Simmental breeding core group. Results showed that the 12 microsatellite markers were highly polymorphic and their PIC （polymorphism information contents） were over 0.60, and the marker with the highest PIC （0.85） was ILST093. The heterozygosities were among 0.64 and 0.86. Effects of 12 microsatellite loci on milk production traits were analyzed.Results showed that ILST093 had a significant effect on somatic cell number （P〈0.05）. Effects of BMS711 on fat ratio and of BMS1905 on lactose both reached a significant level （P〈0.05）, BM6438 on milk production traits had no significant effect.

关 键 词：西门塔尔牛 产奶性状 微卫星DNA 

分 类 号：S823[农业科学—畜牧学]