华北农学报 ›› 2010, Vol. 25 ›› Issue (6): 74-80. doi: 10.7668/hbnxb.2010.06.014

所属专题: 水稻 生物技术

• 论文 • 上一篇    下一篇

粳稻直立穗型基因效应的研究

陈书强1,2, 王嘉宇1, 薛菁芳2, 徐正进1, 陈温福1   

  1. 1 沈阳农业大学水稻研究所 辽宁 沈阳 110161;
    2 黑龙江省农业科学院水稻研究所 黑龙江 佳木斯 154026
  • 收稿日期:2010-10-10 出版日期:2010-12-28
  • 通讯作者: 徐正进(1958-),男,辽宁营口人,研究员,博士,博士生导师,主要从事水稻产量生理与遗传基础研究。
  • 作者简介:陈书强(1976-),男,黑龙江阿城人,助理研究员,博士,主要从事水稻产量生理和生物技术研究。
  • 基金资助:
    国家自然科学基金项目(30370866);教育部高等学校博士学科点专项科研基金项目(20050157001);辽宁省教育厅重点实验室项目(20060753)

Research on Erect Panicle Genetic Effects of Japonica Rice

CHEN Shu-qiang1,2, WANG Jia-yu1, XUE Jing-fang2, XU Zheng-jin1, CHEN Wen-fu1   

  1. 1 Rice Institute of Shenyang Agricultural University,Shenyang 110161,China;
    2 Rice Research Institute,Heilongjiang Academy of Agricultural Sciences,Jiamusi 154026,China
  • Received:2010-10-10 Published:2010-12-28

摘要: 利用弯穗型品种丰锦和直穗型品种辽粳5杂交高世代(F14)中分离的一对直立穗型和弯穗型近等基因系(ZF14和WF14)研究了粳稻直立穗型基因对农艺性状的影响。结果发现,直立穗基因(EP)除了使穗型直立外,还具有使植株矮化、穗长变短、叶型直立、叶片变短变宽等作用。它能使一次枝梗上的二次枝梗数增加,从而增加二次枝梗颖花数和着粒密度,达到增加产量的目的。直立穗基因(EP)可能从幼苗开始生长阶段(播种后10 d)就有表达效应,使得幼苗在株高、叶形态和干物质重上表现出差异。内源激素含量上的差异是使近等基因系在形态性状上表现出差异的内在生理原因。

关键词: 粳稻, 近等基因系, 直立穗型基因, 农艺性状

Abstract: Effect of erect panicle japonica gene on agronomic traits were studied using a pair of erect panicle type near-isogenic lines(ZFl4 and WFl4)derived from high—generation(F14)of curved panicle variety Toyonihiki and erect panicle variety”Liaojing 5”cross.The results showed that the erect panicle gene(EP)have the effect of not only making panicle type erect, but also making plant height dwarf, panicle length short, leaf posture erect, leaves wide and short and s0 on.EP increased the number of secondary branch on primary branch.consequently EP raised yield through increasing fertilized spikelet number on secondary branch and grain density.EP may have expression effect from the seedling growth stage(10 d after sowing).It make seedlings present differences in plant height。leaf shape and dry weight.The inherent physiological causes that NILs made difference in morphological traits were that endoge· nous hormone contents differenced in each growth stage.

Key words: Japonica rice, Near—isogenic lines, Erect panicle gene, Agronomic traits

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引用本文

陈书强, 王嘉宇, 薛菁芳, 徐正进, 陈温福. 粳稻直立穗型基因效应的研究[J]. 华北农学报, 2010, 25(6): 74-80. doi: 10.7668/hbnxb.2010.06.014.

CHEN Shu-qiang, WANG Jia-yu, XUE Jing-fang, XU Zheng-jin, CHEN Wen-fu. Research on Erect Panicle Genetic Effects of Japonica Rice[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(6): 74-80. doi: 10.7668/hbnxb.2010.06.014.

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