中国水稻科学 ›› 2011, Vol. 25 ›› Issue (4): 357-364.DOI: 10.3969/j.issn.1001-7216.2011.04.003

• 研究报告 • 上一篇    下一篇

太湖流域晚粳品种抽穗期的遗传分析

周振玲1, 2, 江玲1,徐大勇1, 2, 魏祥进1, 刘喜1, 卢百关2, 万建民1, 3, *   

  1. 1南京农业大学  作物遗传与种质创新国家重点实验室,  江苏  南京 210095; 2连云港市农业科学院, 江苏  连云港 222006; 3中国农业科学院
    作物科学研究所,  北京 100081
  • 收稿日期:2010-11-08 修回日期:2011-02-18 出版日期:2011-07-10 发布日期:2011-07-10
  • 基金资助:

    国家自然科学基金资助项目(30871497);国家863计划资助项目(2009AA101101);江苏省品种创新工程资助项目(BE20093013, BE2008354);高等学校学科创新引智计划资助项目(B08025)

Genetic Analysis of Heading Date of Late Season   Japonica Rice   from Taihu Lake Region

ZHOU  Zhen-Ling1, 2 , JIANG  Ling1,Xu Da-Yong1, 2 , WEI  Xiang-Jin1, LIU  Xi1, LU  Bai-Guan2, WAN  Jian-Min1, 3 , *   

  1. 1 State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; 2Lianyungang Academy of Agricultural Sciences, Lianyungang 222006, China; 3  Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2010-11-08 Revised:2011-02-18 Online:2011-07-10 Published:2011-07-10

摘要: 设置人工长短日照、高低温环境对太湖流域20份晚粳水稻品种的光、温敏感性及基本营养生长期进行分析,结果表明,这20份晚粳品种都表现出强感光性,而且多数品种基本营养生长期较短,具有较强的感温性,抽穗期长短与品种的感光性呈显著正相关。利用一套抽穗期主基因近等基因系分析这些晚粳品种的抽穗期基因型,结果表明, 太湖流域晚粳品种几乎都同时携带主效显性感光等位基因E1和显性早熟等位基因Ef1,在E2位点主要为非感光等位基因e2,在E3位点,部分品种携带感光等位基因E3或E3t;在Se1位点,携带的主要是非感光等位基因Se1e,还有部分品种为主效显性感光等位基因Se1n;另外,大部分品种还携带可以部分抑制Se1、E1表达的隐性感光抑制因子hd2。

关键词:  晚粳稻, 抽穗期, 遗传分析, 感光性, 感温性, 基本营养生长期

Abstract: Heading dates  of 20 late season  japonica rice cultivars  native to the Taihu Lake region of China were investigated, and their basic vegetative growth (BVG), photoperiodsensitivity (PS) and temperaturesensitivity (TS) were analyzed under artificial shortday  and  natural longday conditions in Nanjing, as well as  artificial high temperature and natural low temperature conditions  in winter in Hainan.  The results showed  that  all the cultivars had strong PS, and most of   the cultivars had strong TS and short BVG. Regression analysis  showed a significant correlation between heading date and PS,  indicating PS was the main factor affecting heading date of late season  japonica rice cultivars from the Taihu Lake region.  Genetic analyses were conducted by using a set  of heading date near isogenic lines  as tester lines.  All these  japonica cultivars carried the  dominant photoperiod sensitivity allele E1 and the dominant earlyheading gene Ef1. At the  E2  and E3 loci, most of  the late season japonica cultivars  carried  the photoperiod insensitivity alleles  e2  and e3, but some carried the photoperiod sensitivity alleles E2  and E3 or E3t.  At the Se1  locus,  these late season  japonica cultivars  mainly carried recessive photoperiod insensitivity gene Se1e, others carried Se1n. In addition, some of the late season  japonica cultivars carried the recessive allele hd2, inhibiting the expressions of E1 and Se-1.

Key words: late season , japonica rice, heading date, genetic analysis, photoperiod sensitivity, temperature sensitivity, basic vegetative growth

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