| 水稻正反交杂合体在不同海拔产生的F2群体的遗传分化研究 |
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| 引用本文： | 王石华,谭学林,谭亚玲.水稻正反交杂合体在不同海拔产生的F2群体的遗传分化研究[J].西南农业学报,2011,24(1). |
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| 作者姓名： | 王石华 谭学林 谭亚玲 |
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| 作者单位： | 1. 丽江师范高等专科学校生命科学系,云南,丽江,674100;云南农业大学稻作研究所,云南,昆明,650201
2. 云南农业大学稻作研究所,云南,昆明,650201 |
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| 基金项目： | 国家自然科学基金项目(30860065) |
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| 摘 要： | 利用云南海拔2650 m高寒稻区种植的地方粳稻老品种小麻谷与具有籼稻细胞质背景的改良品系南34为亲本,基于SSR标记评价了在400、1860和2200 m 3个不同海拔下产生的正反交F2群体的遗传多样性与遗传分化。结果表明,F2(小麻谷×南34)群体的遗传多样性高于在同一海拔下产生的反交F2群体。2个组合在海拔400 m的海拔产生的群体中遗传多样性均最小,并随海拔的升高而增加,在海拔2200 m的海拔产生的群体中遗传多样性最丰富。正反交组合F2群体间的遗传分化高于同一组合在不同海拔下产生的F2群体之间的遗传分化。同一组合在不同海拔产生的F2群体间的遗传分化随产生群体的海拔差异增加而扩大。本研究在DNA水平上证实了细胞质和海拔明显影响水稻杂种后代群体的遗传多样性和遗传分化。
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| 关 键 词： | 海拔 籼粳稻细胞质 SSR 遗传多样性 遗传分化 |
Genetic Differentiation among Rice F2 Populations Generated from Reciprocal Hybrids Grown at Different Altitudes |
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| WANG Shi-hua,TAN Xue-lin,TAN Ya-lin.Genetic Differentiation among Rice F2 Populations Generated from Reciprocal Hybrids Grown at Different Altitudes[J].Southwest China Journal of Agricultural Sciences,2011,24(1). |
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| Authors: | WANG Shi-hua TAN Xue-lin TAN Ya-lin |
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| Institution: | WANG Shi-hua1,2,TAN Xue-lin2,TAN Ya-lin2(1.Life Sciences Department of Lijiang Teachers College,Yunnan Lijiang 674100,China,2.Rice Research Institute,Yunnan Agricultural University,Yunnan Kunming 650201,China) |
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| Abstract: | The genetic diversity and divergency of 6 rice reciprocal F2 populations generated at three places with different altitude of 400,1860 and 2200 m were assessed based on SSR markers polymorphism.The material parents were Xiaomagu,japonica rice landrace grown at Yunnan alpine region at 2650 m,and Nan34,an improved line that cytoplasm donated by indica rice.The results showed that the genetic diversity of F2 population was affected by cytoplasm.And it was also influenced by the altitude change,as the altitude ... |
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| Keywords: | Altitude Indica and japonica cytoplasm SSR Genetic diversity Genetic differentiation |
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