| 节节麦与普通小麦杂交后代的遗传多样性分析 |
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| 引用本文： | 杨玉敏,杨武云,李俊,林超文,张庆玉,张冀. 节节麦与普通小麦杂交后代的遗传多样性分析[J]. 西南农业学报, 2011, 24(6) |
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| 作者姓名： | 杨玉敏 杨武云 李俊 林超文 张庆玉 张冀 |
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| 作者单位： | 1. 四川省农业科学院土壤肥料研究所,四川成都,610066
2. 四川省农业科学院作物研究所,四川成都,610066 |
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| 基金项目： | 四川省财政育种青年基金项目(2010QNJJ-020); 国家小麦产业技术体系项目(nycytx-03) |
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| 摘 要： | 运用SSR标记的方法,对节节麦SQ-214与普通小麦杂交后代的BC1F2群体的64份材料和高代系群体的147份材料在D基因组上的68个SSR位点的遗传多样性进行了分析.结果表明:68对SSR引物在杂交后代的两个群体等位变异位点较多,BC1F2群体共检测到67个位点有变异,等位变异数为212个,主要集中在3D染色体上.高代系中58个位点有变异,等位变异数为184个,等位变异位点多集中在2D上.BC1F2和高代系群体在D基因组的7条染色体上遗传多样性的表现不一致,BC1F2在7条染色体上的遗传多样性显著高于高代系,等位变异分布较高代系均衡.BC1F2材料间的遗传多样性高于高代系.由此可知,节节麦与普通小麦杂交衍生后代具有较高的遗传多样性,可用于进一步改良小麦；同一衍生亲本的衍生后代具有较大的遗传分化,尤其是在随机群体；经过选择后的群体遗传多样性会明显的降低.
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| 关 键 词： | 节节麦SQ-214 普通小麦 遗传多样性 SSR标记 选择压 |
Genetic Diversity in Wheat Derived from Aegilops tauschii by SSR Marker |
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| YANG Yu-min , YANG Wu-yun , LI Jun , LIN Chao-wen , ZHANG Qing-yu , ZHANG Ji. Genetic Diversity in Wheat Derived from Aegilops tauschii by SSR Marker[J]. Southwest China Journal of Agricultural Sciences, 2011, 24(6) |
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| Authors: | YANG Yu-min YANG Wu-yun LI Jun LIN Chao-wen ZHANG Qing-yu ZHANG Ji |
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| Affiliation: | YANG Yu-min1,YANG Wu-yun2,LI Jun2,LIN Chao-wen1,ZHANG Qing-yu1*,ZHANG Ji1(1.Soil Fertilizer Research Institute,Sichuan Academy of Agricultural Sciences,Sichuan Chengdu 610066,China,2.Crop Research Institute,China) |
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| Abstract: | SSR analysis was used to evaluate the genetic variation among 64 lines of BC1F2 and 147 advanced lines of BC1F2-F7 derived from the cross of CS(Triticum aestivum) /SQ-214(Ae.tauschii) //SW3243(T.aestivum).The result showed that sixty-eight polymorphic loci covering the D genome were assessed.At 68 loci among BC1F2,67 loci were polymorphic,and total 212 alleles were obtained,which focused on 3D.Among BC1F2-F7,58 loci were polymorphic,and 184 alleles were obtained,which focused on 2D.Genetic diversity of BC1F... |
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| Keywords: | Aegilops tauschii L. Genetic diversity Artificial selection SSR markers |
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