RICE SCIENCE ›› 2005, Vol. 12 ›› Issue (3): 151-156 .

• 研究报告 •    下一篇

Identification of QTLs for Plant Height and Its Components by Using Single Segment Substitution Lines in Rice (Oryza sativa)

HE Feng-hua, XI Zhang-ying, ZENG Rui-zhen, Akshay TALUKDAR, ZHANG Gui-quan   

  1. Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
  • 收稿日期:2005-08-15 出版日期:2005-09-28 发布日期:2005-09-28
  • 通讯作者: ZHANG Gui-quan
  • 基金资助:
    the key project of National Natural Science Foundation of China(30330370) and the team project of Natural ScienceFoundation of Guangdong Province (20003023).

摘要: QTLs for plant height and its components on the substituted segments of fifty-two single segment substitution lines (SSSLs) in rice were identified through t-test (P≤0.001) for comparison between each SSSL and recipient parent Huajingxian 74. On the 14 substituted segments, 24 QTLs were detected, 10 for plant height, 2 for panicle length, 4 for length of the first internode from the top, 5 for length of the second internode from the top and 3 for length of the third internode from the top, respectively. All these QTLs were distributed on nine rice chromosomes except chromosomes 5, 9 and 11. The additive effect ranged from –4.08 to 3.98 cm, and the additive effect percentages varied from –19.35% to 10.43%.

关键词: rice, single segment substitution line, plant height, quantitative trait locus