期刊
HEREDITY
卷 112, 期 6, 页码 638-645出版社
SPRINGERNATURE
DOI: 10.1038/hdy.2014.1
关键词
marker-assisted selection; genomic selection; heading time; plant height; hybrid wheat
资金
- BMBF [FKZ0315945D]
Based on data from field trials with a large collection of 135 elite winter wheat inbred lines and 1604 F-1 hybrids derived from them, we compared the accuracy of prediction of marker-assisted selection and current genomic selection approaches for the model traits heading time and plant height in a cross-validation approach. For heading time, the high accuracy seen with marker-assisted selection severely dropped with genomic selection approaches RR-BLUP (ridge regression best linear unbiased prediction) and BayesC pi, whereas for plant height, accuracy was low with marker-assisted selection as well as RR-BLUP and BayesC pi. Differences in the linkage disequilibrium structure of the functional and single-nucleotide polymorphism markers relevant for the two traits were identified in a simulation study as a likely explanation for the different trends in accuracies of prediction. A new genomic selection approach, weighted best linear unbiased prediction (W-BLUP), designed to treat the effects of known functional markers more appropriately, proved to increase the accuracy of prediction for both traits and thus closes the gap between marker-assisted and genomic selection.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据