首页 | 本学科首页   官方微博 | 高级检索  
   检索      


Evidence for a third allele at the β-lactoglobulin (β-Lg) locus of sheep milk and its occurrence in different breeds
Authors:G ERHARDT
Institution:Institute of Animal Science, Justus-Liebig-University, Giessen, FRG
Abstract:Summary. Milk samples from 189 Merinoland Sheep, 145 Black Faced Mutton Sheep, 89 East Friesian Milk Sheep, 36 Rhön, 36 Pleven, 23 Tsigaja, 25 Black Razka and 86 Hungarian Merino x Pleven (F1) sheep were analysed by polyacrylamide gel electrophoresis under acid conditions and isoelectric focusing in ultrathin layer polyacrylamide gels with carrier ampholytes. Six different β-lactoglobulin (β-Lg) phenotypes (A, AB, B, AC, BC and C) were observed by both methods. The occurrence of three codominant alleles (β-LgA, β-LgB, β-Lgc) at an autosomal locus (β-Lg) was supported by family and population data on genetic equilibrium. Differences in gene frequencies between the breeds were observed.
Keywords:β-lactoglobulin polymorphism  European sheep breeds  isoelectric focusing  polyacrylamide gel electrophoresis
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号