Detection of putative loci affecting conformational type traits in an elite population of united states Holsteins using microsatellite markers

被引：36

作者：

Ashwell, MS ^{[1
]}

Da, Y ^{[1
]}

Vanraden, PM ^{[1
]}

Rexroad, CE ^{[1
]}

Miller, RH ^{[1
]}

机构：

[1] USDA ARS, Beltsville, MD 20705 USA

来源：

JOURNAL OF DAIRY SCIENCE | 1998年 / 81卷 / 04期

关键词：

quantitative trait loci; microsatellite markers; type traits; dairy cattle;

D O I：

10.3168/jds.S0022-0302(98)75674-7

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Quantitative trait loci affecting conformational type traits were studied in seven large grandsire families of US Holsteins using the granddaughter design and 16 microsatellite markers on 10 chromosomes. The most significant marker effect was marker BM203 (chromosome 27) for dairy form in a single grandsire family. A multivariate analysis for dairy form and milk yield was also conducted, and the result was highly significant, indicating that a segregating quantitative trait locus or loci affecting dairy form and milk yield could exist near BM203 on chromosome 27. Marker BM1258 (chromosome 23) had a significant effect on udder depth. A multivariate analysis on udder depth and somatic cell score was conducted for markers 513 and BM1258, and both markers showed significant effects on these two traits, indicating that one or several quantitative trait loci affecting udder depth and mastitis might exist on chromosome 23. Marker BM4204 (chromosome 9) had a significant effect on foot angle and on the composite index of traits pertaining to feet and legs, indicating that one or several quantitative trait loci affecting traits pertaining to feet and legs might exist on chromosome 9. Selection on these markers could increase genetic progress within these families.

引用

页码：1120 / 1125

页数：6

共 20 条

[1] Detection of loci affecting milk production and health traits in an elite US Holstein population using microsatellite markers [J].