|
|||||
|
|
| 在两个环境中检测控制水稻抽穗期的QTL | |
| 引用本文： | 包劲松,包志毅,何平,朱立煌.在两个环境中检测控制水稻抽穗期的QTL[J].浙江大学学报(农业与生命科学版),2002,28(1):27-32. |
| 作者姓名： | 包劲松 包志毅 何平 朱立煌 |
| 作者单位： | 1. 浙江大学,核农业科学研究所,浙江,杭州,310029 2. 浙江大学,园艺系,浙江,杭州,310029 3. 中国科学院,遗传研究所,北京,100101 |
| 摘 要： | 利用一个DH群体研究了控制抽穗期的QTL,实验分别在杭州(HZ)和海南(HN)两地进行,抽穗期分别在4个和3个不同发育阶段调查.结果表明:在2个环境和7个发育阶段中共检测到8个QTL,分别分布在第1,6,8,10,12号染色体上.其中,2个QTL,qHD-1-1和qHD-12能在2个环境中检测到,其它只能在1个环境中检测到.在HN中一个QTL qHD-10-1主要在发芽后75～85 d检测到其效应,它可解释19.6%的变异.在HZ一个主效QTL qHD-8-1在发芽后80～90 d时检测到效应.其它的QTL只在某一阶段表达.最后讨论了抽穗期QTL的作用模式及其在育种中应用. |
| 关 键 词： | 水稻 抽穗期 数量性状基因位点(QTL) |
Detection of QTLs controlling heading date in the process of rice development at two environments |
|
| Abstract.Detection of QTLs controlling heading date in the process of rice development at two environments[J].Journal of Zhejiang University(Agriculture & Life Sciences),2002,28(1):27-32. | |
| Authors: | Abstract |
| Abstract: | Heading date (HD) is a major determinant of the regional and seasonal adaptation of rice varieties. In order to elucidate the quantitative trait loci (QTL) for HD in the process of rice development, a doubled haploid (DH) population was employed to map QTLs controlling HD at different heading stages in two locations, Hainan (HN) and Hangzhou (HZ) in China. The results indicated that a total of 8 QTL were identified at two environments and seven stages which were located on chromosomes 1, 6, 8, 10 and 12. Two QTL, qHD 1 1 and qHD 12 could be detected at both environments, the others were only detected at one environment. One QTL in HN, qHD 10 1, exerted its effect during 75 85 DAG (days after germination) and could explain 19.6% of the total variation. A major QTL, qHD 8 1 in HZ, showed its effect during 80 90 DAG. The other QTL were only detected in one stage, such as qHD 6 and qHD 10 2 were both specific for 80 DAG in HN, while qHD 1 2 and qHD 8 2 were specific for 85 and 80 DAG in HZ, respectively. Based on the QTL mapping results, we proposed a QTL effect timing model for the HD controlling QTLs. |
| Keywords: | rice heading date quantitative trait locus (QTL) |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《浙江大学学报(农业与生命科学版)》浏览原始摘要信息 | |
| 点击此处可从《浙江大学学报(农业与生命科学版)》下载免费的PDF全文 | |