感光性的遗传背景对水稻短光诱导雄性不育特性表达的影响研究

应用生态学报 ›› 2000, Vol. ›› Issue (5): 710-712.

感光性的遗传背景对水稻短光诱导雄性不育特性表达的影响研究

陆燕鹏, 万邦惠, 陈雄辉, 彭海峰, 梁克勤

华南农业大学, 广州510642

收稿日期:1999-12-15 修回日期:2000-05-24 出版日期:2000-09-25
通讯作者: 陆燕鹏,男,1973年生,博士,讲师,主要从事水稻杂种优势的研究与利用,发表研究论文多篇
基金资助:
广东省自然科学基金(960423);广东省重点科技攻关资助项目

Influence of genetic background of photoperiodic response on expression of short photoperiod sensitive male sterility in rice

LU Yanpeng, WAN Banghui, CHEN Xionghui, PENG Haifeng, LIANG Keqin

South China Agricultural University, Guangzhou 510642

Received:1999-12-15 Revised:2000-05-24 Online:2000-09-25

摘要/Abstract

摘要： 通过对双亲及F₁的感光性分析和F₂群体单株的感光性及短光不育特性分析表明,强感光性对弱感光性表现为显性;具短光不育特性的单株其感光性均表现为中度以上感光(短日出穗促进率>15%).对宜D1S与宜D2S的光敏性、感光性分析和不育基因的等位性测定表明,两者感光性与光敏性符合正相关的结论,它们的不育主基因是等位的.可以认为,对短光低温不育水稻,短光不育基因需要在感光性基因存在时才能得到表达,同一不育基因导入不同遗传背景的材料,育性表现不同,并非不育基因本身发生了变异,而是基因表达条件(如感光性的遗传背景)改变所致.

Abstract: The photoperiodic response of F₁ and its parents was analyzed, and the photoperiodic response and short photoperiod sensitive male sterility of F₂ progenies were studied in this paper. The results showed that the strong response was dominant over the weak response to photoperiod.The photoperiodic response of plants with short photoperiod sensitive male sterility in F₂ was above medial degree(the rate of heading acceleration >15%). Photoperiodic response showed a positive correlation with short photoperiod sensitive male sterility. The main sterility genes of Yid1s and Yid2s were allelism. It can be inferred that the short photoperiod sensitive male sterile gene might be expressed upon the presence of the photoperiodic response genes, and that the short photoperiod sensitive male sterility of plants with the same genes could differ in their reproductive expressions,not because of the changes of the genes,but the difference in genetic backgrounds of photoperiodic response.

陆燕鹏, 万邦惠, 陈雄辉, 彭海峰, 梁克勤. 感光性的遗传背景对水稻短光诱导雄性不育特性表达的影响研究[J]. 应用生态学报, 2000, (5): 710-712.

LU Yanpeng, WAN Banghui, CHEN Xionghui, PENG Haifeng, LIANG Keqin. Influence of genetic background of photoperiodic response on expression of short photoperiod sensitive male sterility in rice[J]. Chinese Journal of Applied Ecology, 2000, (5): 710-712.

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