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水稻显性矮秆遗传研究──Ⅰ.关于KL908的矮生性遗传的性质

STUDIES ON THE INHERITANCE OF DOMINANT DWARFISM IN RICE Ⅰ.ON THE GENETIC NATURE OF DWARFISM OF A JAPONICA LINE KL908

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【作者】 朱立宏赖桂贤滕友仁周傲南王浩熙

【Author】 Zhu Lihong; Lai Guixian; Teng Youren; Zhou Aonan and Wang Haoxi(Dept of Agronomy, Nanjing Agric Univ, Nanjing 210095)

【机构】 南京农业大学农学系

【摘要】 KL908与6个高秆品种杂交,根据P1、P2、F1、F2、B1、B2和部分F3世代群体株高变异的分析,证明KL908的矮生性系受1对显性矮秆基因控制。基因的表达爱品种的遗传背景影响,显性效应较弱。KL908的基因型暂定为DKDK,DK与籼稻半矮秆基因sd-1非等位。作者论述了培育显性矮生系的潜在育种意义。

【Abstract】 Based on the analysis of the population variations of plant height in hydrids in cluding F1 , F2 , B1 (backcrossed to dwarf parent), and B2(backerossed to parents) derived from six combinations between KL908 and tall varieties. It was found that the dwarfism of KL908 was controlled by a pair of dominant genes, its expressioncould be affected by different varietal backgrounds. Tentatively the genotype of KL908 was designated as DKDK, thedominant gene, DK, being nonallelle to sd-1, appeared to be week in dominant effect. The potential value of thedominant dwarf lines was disoussed.

【关键词】 水稻矮生性遗传,显性
【Key words】 ricedwarfisminheritancedominance
【基金】 国家自然科学基金
  • 【文献出处】 南京农业大学学报 ,JOURNAL OF NANJING AGRICULTURAL UNIVERSITY , 编辑部邮箱 ,1995年02期
  • 【分类号】S511.03
  • 【被引频次】50
  • 【下载频次】99
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