1篇
您的检索式：作者名="HAYART Yousaf"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Statistical method for mapping QTLs for complex traits based on two backcross populations显示文摘Most important agronomic and quality traits of crops are quantitative in nature.The genetic variations in such traits are usually controlled by sets of genes called quantitative trait loci (QTLs),and the interactions between QTLs and the environment.It is crucial to understand the genetic architecture of complex traits to design efficient strategies for plant breeding.In the present study,a new experimental design and the corresponding statistical method are presented for QTL mapping.The proposed mapping population is composed of double backcross populations derived from backcrossing both homozygous parents to DH (double haploid) or RI (recombinant inbreeding) lines separately.Such an immortal mapping population allows for across-environment replications,and can be used to estimate dominance effects,epistatic effects,and QTL-environment interactions,remedying the drawbacks of a single backcross population.In this method,the mixed linear model approach is used to estimate the positions of QTLs and their various effects including the QTL additive,dominance,and epistatic effects,and QTL-environment interaction effects (QE).Monte Carlo simulations were conducted to investigate the performance of the proposed method and to assess the accuracy and efficiency of its estimations.The results showed that the proposed method could estimate the positions and the genetic effects of QTLs with high efficiency. | ZHU ZhiHong HAYART Yousaf YANG Jian CAO LiYong LOU XiangYang XU HaiMing | 2012 | Chinese Science Bulletin2012，57，21： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员