中国农业科学 ›› 2005, Vol. 38 ›› Issue (09): 1923-1925 .

• 研究简报 • 上一篇    下一篇

水稻第2染色体上细菌性条斑病抗性QTL的检测

郑景生,方宣钧,李义珍   

  1. 海南省热带农业资源开发利用研究所
  • 收稿日期:2004-03-18 修回日期:1900-01-01 出版日期:2005-09-10 发布日期:2005-09-10
  • 通讯作者: 方宣钧

Detection of QTL Conferring Resistance to Bacterial Leaf Streak in Rice Chromosome 2 (O. sativa L. spp. indica)

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  1. 海南省热带农业资源开发利用研究所
  • Received:2004-03-18 Revised:1900-01-01 Online:2005-09-10 Published:2005-09-10

摘要: 用中抗和高抗细菌性条斑病(简称细条病)的两个籼稻品种明恢86和佳辐占为亲本构建了F2群体,应用SSR标记在水稻第2染色体的RM279~RM154之间检测到1个与水稻细条病抗性有关的QTL,其可解释遗传表型变异的13.7%,其加性效应为0.9576,来自抗病亲本佳辐占。

关键词: 水稻, 细菌性条斑病, QTL检测

Abstract: A F2 population from a cross between two indica rice cultivars, Minghui86 and Jiafuzhan, which are moderately and highly resistant to bacterial leaf streak (BLS) respectively, was established. One QTL conferring the resistance to BLS was detected in the region between microsatellite markers RM279 and RM154 on chromosome 2 of rice (O.sativa L. spp. indica) using SSR (simple sequence repeats) marker, which could explain 13.7% of the phenotypic variation. Its additive effect from Jiafuzhan is 0.9576.

Key words: Rice (Oryza sativa L. spp. indica), Bacterial leaf streak (Xanthomonas oryze pv. oryzicola), QTL