| kr基因在普通小麦—偃麦草双二倍体背景下的遗传表达分析 |
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| 引用本文： | 杨武云,李先碧.kr基因在普通小麦—偃麦草双二倍体背景下的遗传表达分析[J].西南农业大学学报,1997,19(4):330-333. |
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| 作者姓名： | 杨武云 李先碧 |
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| 作者单位： | 四川省农科院作物所(杨武云)，西南农业大学生物技术中心(李先碧)，四川农业大学小麦研究所(刘登才) |
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| 基金项目： | 国家自然科学基金,四川省应用基础项目资助 |
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| 摘 要： | 通过ＣＳ／Ｔｈ．ｅｌｏｎｇａｔｕｍ和ＣＳ／Ｔｈ．ｂｅｓａｒｂｉｃｕｍ两个双二倍体与黑麦和粘果山羊草的可杂交性，分析了中国春（ＣＳ）的隐性ｋｒ基因在普通小麦－偃麦草双二倍体下的遗传表达。结果表明，偃麦草种Ｔｈ．ｅｌｏｎｇａｔｕｍ和Ｔｈ．ｂｅｓａｒｂｉｃｕｍ中可能存在抑制ＣＳ隐性ｋｒ基因在普通小麦－偃麦草双二倍体中正常表达的遗传因子，其抑制效应因与普通小麦－偃麦草双二倍体杂交的父本不同而异。同时，Ｔｈ．ｅｌｏｎｇａｔｕｍ和Ｔｈ．ｂｅｓａｒｂｉｃｕｍ两个种中的抑制因子的抑制效应也存在差异。
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| 关 键 词： | kr基因 小麦 偃麦草 双二倍体 亲合性 |
ANALYSIS OF GENE EXPRESSION OF kr LOCI UNDER THE T.AESTIVUM THINOPYRUM AMPHIPLOID BACKGROUND |
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| Yang Wuyun.ANALYSIS OF GENE EXPRESSION OF kr LOCI UNDER THE T.AESTIVUM THINOPYRUM AMPHIPLOID BACKGROUND[J].Journal of Southwest Agricultural University,1997,19(4):330-333. |
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| Authors: | Yang Wuyun |
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| Abstract: | The gene expression of the kr loci in the common wheat (Triticum aestivum) variety Chinese Spring (CS) under the T.aestivum Thinopyrum amphiploid background was analysed in an experiment in which two T.estivum Thinopyrum amphiploids (CS/ Th.elongatum and CS/ Th. bessarbicum ) were crossed with Secale cereale and Aegrilops variabilis. A factor or factors seedmed to exist that restrain the normal expression of the kr loci of CS under the T.aestivum Thinopyrum amphiploid background, their suppressing ability varying with the male parent used to pollinate the amphiploids. Differences were also observed between Th. elongatum and Th. bessarbicum in the suppressing effect of their restraining factor(s). |
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| Keywords: | kr coci genes triticum aestivum thinopyrum amphidiploid crossability |
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