标记的等位基因频率对标记辅助导入效率的影响研究  

Effect of Marked Allele Frequencies on Marker-assisted Introgression Efficiency

作　　者：白俊艳[1] 黄勇[1] 杨又兵[1] 祁艳霞[1] 李广录[1] 李宏伟[1] 

机构地区：[1]河南科技大学动物科技学院,河南洛阳471003

出　　处：《中国家禽》2015年第14期13-16,共4页China Poultry

基　　金：国家自然科学基金项目(31201777)

摘　　要：本研究利用标记辅助最佳线性无偏预测(MBLUP)方法探讨了标记的4个等位基因具有不同频率时对标记辅助导入效率的影响。结果表明:利用MBLUP进行前景选择时,导入QTL频率不随供体中初始的标记等位基因频率的变化而变化,即使当供体中初始的标记等位基因频率很低时(0.5/0.25/0.2/0.05),仍然能获得很高的导入QTL频率(0.9954)。This study explored the effect of four alleles of the marker with different frequencies on the efficiency of marker assisted introgression by using marker-assisted best linear unbiased prediction（MBLUP）method. The results showed as follows：for foreground selection with MBLUP method,frequencies of introgressed QTL couldn′t be changed with the original marked allele frequencies in a donor line;the high frequencies of introgressed QTL（0.9954）still could be got even when the original marked allele of a donor line were very low（0.5/0.25/0.2/0.05）.

关 键 词：标记辅助导入 等位基因频率 标记辅助最佳线性无偏预测 

分 类 号：S813[农业科学—畜牧学]