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作物学报 ›› 2012, Vol. 38 ›› Issue (01): 10-22.doi: 10.3724/SP.J.1006.2012.00010

• 作物遗传育种·种质资源·分子遗传学 • 上一篇    下一篇

我国水稻主栽品种抽穗期多样性的遗传分析

魏祥进1，徐俊锋1，江玲1，王洪俊1，周振玲1，翟虎渠3，万建民1,2,*   

  1. 1 南京农业大学作物遗传与种质创新国家重点实验室 / 江苏省植物基因工程技术研究中心，江苏南京210095；2 中国农业科学院作物科学研究所，北京100081；3中国农业科学院，北京100081
  • 收稿日期:2011-06-20 修回日期:2011-09-16 出版日期:2012-01-12 网络出版日期:2011-11-07
  • 通讯作者: 万建民, E-mail: wanjm@njau.edu.cn, wanjm@caas.net.cn
  • 基金资助:

    本研究由国家高技术研究发展计划(863计划)项目(2006AA100101, 2006AA10Z1A5, 2006BAD13B01, 2009AA101101), 国家自然科学基金项目(30871497, 30571142), 江苏省高技术招标项目(BG2006301)和高等学校学科创新引智计划项目(B08025)资助。

Genetic Analysis for the Diversity of Heading Date of Cultivated Rice in China

WEI Xiang-Jin1,XU Jun-Feng1,JIANG Ling1,WANG Hong-Jun1,ZHOU Zhen-Ling1,ZHAI Hu-Qu3,WAN Jian-Min1,2,*   

  1. 1 State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Provincial Center of Plant Gene Engineering, Nanjing Agricultural University, Nanjing 210095, China; 2 Institute of Crop Sciences, National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing 100081, China; 3 Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2011-06-20 Revised:2011-09-16 Published:2012-01-12 Published online:2011-11-07
  • Contact: 万建民, E-mail: wanjm@njau.edu.cn, wanjm@caas.net.cn

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被引次数

21

摘要： 抽穗期决定着水稻品种的地区和季节适应性，我国水稻品种抽穗期表现出丰富的多样性。设置长、短日照和高、低温4种环境，分析了来自我国各稻区的83份粳稻和51份籼稻共134份水稻主栽品种的抽穗期感光性、感温性及基本营养生长性。回归分析表明我国水稻主栽品种的抽穗期与其感光性、基本营养生长性呈显著线性相关。高纬度地区的水稻品种往往具有弱的感光性和基本营养生长性，低纬度地区的品种感光性和基本营养生长性较强。利用一套抽穗期近等基因系对这134份品种抽穗期基因型进行了分析。结果表明，感光基因E1与基本营养生长Ef-1位点的不同基因型对我国水稻主栽品种抽穗期多样性起着重要的作用。大多数带有非感光等位基因e1的品种感光性与基本营养生长性都相对较弱，抽穗期较短；而携带感光性等位基因E1或E1t的品种的感光性与基本营养生长性都相对较强，抽穗期较长。在Ef-1位点，携带显性早熟等位基因Ef-1的品种，其基本营养生长性较弱，抽穗期较短；而携带早熟效应较弱的等位基因Ef-1t或迟熟等位基因ef-1的品种，其基本营养生长性较强，抽穗期较长。同时，各主基因的不同基因型在我国各稻区或各种类型水稻中的分布频率也表现出不同的特点。这些结果将对我国水稻种质的合理利用及广适应性水稻新品种的选育具有重要的指导意义。

关键词: 感光性, 感温性, 基本营养生长性, 基因型分析

Abstract: Heading date (HD) determines the adaptability to growing regions of cultivated rice. There is a rich diversitycultivated rice. In this study, of HDs in Chinese HDs of 83 typical japonica rice and 51 typical indica rice cultivars native to different regions in China were investigated and their basic vegetative growth (BVG), photoperiod-sensitivities (PS) and temperature-sensitivities (TS) were analyzed. A regression analysis showed that HD was closely correlated with PS and BVG. The PS and BVG of cultivars were weak in high latitude regions of China, and strong in low latitude regions.Genetic analyses of the 134 cultivars were conducted using a set of HD tester lines. The results showed that, on the whole, when the cultivars carried no-PS allele e1,the plants headed earlier with weaker PS and BVG, when the cultivars carried the PS allele E1 or E1t, the plants headed later with strong PS and BVG. When the cultivars carried the allele Ef-1,the plants headed earlier with weaker BVG, when the cultivars carried the allele Ef-1t or ef-1, the plants headed later with strong BVG. It suggested that E1and Ef-1 are two major determinants of variation in heading date of cultivated rice in China. Otherwise, the distribution of different alleles of the major heading date genes in different regions of China was analysed, and the results showed that the leading alleles of the major HD genes in different regions of China was different.

Key words: Heading date, Diversity, Cultivated rice, Basic vegetative growth, Photoperiod-sensitivities

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