中国水稻科学

中国水稻科学

• 研究报告 •    下一篇

水稻叶挺长发育动态的QTL分析

何慈信1;朱 军1;严菊强1;Mebrouk Benmoussa1;吴 平2   

  1. 1浙江大学 农学系， 浙江 杭州 310029；Email：cxhe@zju.edu.cn；2浙江大学 生物科学系, 浙江 杭州 310029
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2000-10-10 发布日期:2000-10-10

QTL Mapping for Developmental Behaviour of Leaf Sheath Height in Rice

HE Ci-xing 1; ZHU Jun 1; YAN Ju-qiang 1; Mebrouk BENMOUSSA 1; WU Ping 2   

  1. (1 Department of Agronomy; Zhejiang University; Hangzhou 310029; China; E-mail: cxhe@zju.edu.cn; 2Department of Biological Science, Zhejiang Unversity, Hangzhou 310029, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2000-10-10 Published:2000-10-10

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摘要： 采用条件复合区间作图法，分析籼型品种IR64和粳型品种Azucena为亲本的DH群体，对不同时期的叶挺伸长动态进行了QTL定位。检测到各时期影响叶挺长的非条件QTLs。随着叶挺的伸长，解释叶挺表型变异的所有非条件QTLs贡献率逐渐增加，到测定末期QTL的贡献率达到90.0%。条件QTL分析表明，Hls 1-2、Hls 3-3、Hls 2和Hls 4等位点的基因表达，在8月18日至9月7日和9月7日至9月17日两个时段较为活跃，与DH群体的拔节盛期和抽穗盛期相吻合。

关键词: 发育动态, 数量遗传, 基因座位, 水稻, 叶挺长

Abstract: The DH population, derived from a cross between an indica variety IR64 and a japonica variety Azucena was analyzed, by using conditional composite interval mapping method, to identify QTLs for the developmental behaviour of leaf sheath height. The unconditional QTLs were detected affecting time dependent measures. The contribution to phenotypic variation explained by unconditional QTL is increasing gradually and reaches the peak of 90% at the final stage. Conditional QTL analysis showed that the gene expression at the loci Hls 1-2, Hls 3-3, Hls 2 and Hls 4 was quite active at the intervals from 18 August to 7 September and from 7 September to 17 September. This is unanimous to the date of elongating and heading of DH population.

Key words: developmental behaviour, quantitative genetics, gene locus, rice, height of leaf sheath