遗传 ›› 2007, Vol. 29 ›› Issue (8): 1001-1001―1007.

• 研究报告 • 上一篇    下一篇

不同生长环境下水稻最上节间长度QTL定位研究

乔保建1,2, 王盈盈1, 朱晓彪1, 洪德林1   

  1. 1. 南京农业大学作物遗传与种质创新国家重点实验室, 南京 210095
    2. 河南省平顶山市农业科学研究所, 平顶山 467000

  • 收稿日期:2006-11-09 修回日期:2007-03-22 出版日期:2007-08-10 发布日期:2007-08-10
  • 通讯作者: 洪德林

QTL analysis of the uppermost internode length in rice under dif-ferent growing environments

QIAO Bao-Jian1,2, WANG Ying-Ying1, ZHU Xiao-Biao1, HONG De-Lin1

  

  1. 1. State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China;
    2. Insititute of Pingdingshan Agricultural Sciences, Pingdingshan 467000, China
  • Received:2006-11-09 Revised:2007-03-22 Online:2007-08-10 Published:2007-08-10
  • Contact: HONG De-Lin

摘要:

利用由98 个家系组成的 Nipponbare/Kasalath//Nipponbare 回交重组自交系(backcross inbred lines, BIL)作图群体(BC1F12和BC1F13)和复合区间作图方法(CIM), 在3种不同的生长环境下对水稻最上节间长度进行了 QTL 分析。结果表明, 3种不同的生长环境共检测到 13 个 QTL , 分布于第 1, 2, 3, 5, 6, 8, 10, 11 染色体上, 解释性状变异的 3.97%~15.21%。其中qUIL-6在3种不同生长环境中均检测到, qUIL-1a, qUIL-3a, qUIL-3b和 qUIL-10a 等4个位点在两种不同生长环境中均被检测到, 说明这些 QTL 位点受环境影响较小, 表达较为稳定。

关键词: 不同生长环境, 复合区间作图法, 数量性状基因座定位, 最上节间长度, 水稻

Abstract:

A mapping population of 98 backcross inbred lines ( BC1F12 and BC1F13 ), derived from a backcross of Nipponbare (japon-ica) / Kasalath ( indica) // Nipponbare by the single seed descent methods, was employed to map quantitative trait loci (QTL) of the uppermost internode length in rice under different growing environments by composite interval map-
ping method. The results showed that 13 QTLs relating to the uppermost internode length were detected under three differ-
ent growing environments, and these QTLs were located on chromosome 1, 2, 3, 5, 6, 8, 10 and 11, explained 3.97%
-15.21% of observed phenotypic variance, respectively. The locus of qUIL-6 was detected in three growing environments,
and qUIL-1a, qUIL-3a, qUIL-3b and qUIL-10a were detected in two growing environments, indicating that these QTLs were stable and little affected by the environment.