| 12份不同地理居群野菊的遗传多样性分析 |
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| 引用本文： | 张鲜艳,张飞,陈发棣,郭慧敏,陈素梅.12份不同地理居群野菊的遗传多样性分析[J].南京农业大学学报,2011,34(3). |
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| 作者姓名： | 张鲜艳 张飞 陈发棣 郭慧敏 陈素梅 |
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| 作者单位： | 南京农业大学园艺学院,江苏,南京,210095 |
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| 基金项目： | 教育部新世纪优秀人才支持计划项目(NCET-06-0489); 上海市农委重点攻关项目(沪农科攻字(2006)第4-3号) |
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| 摘 要： | 结合形态学性状和分子标记对12份不同地理居群野菊进行了遗传多样性研究。结果表明:不同地理居群野菊各形态性状存在不同程度的变异(14.06%～67.50%),叶柄长、叶长/叶柄长、花序径、舌状花长、舌状花宽和舌状花长/舌状花宽可能是造成野菊不同地理居群间表型差异的主要因素。25个ISSR引物共扩增到246条扩增带,其中229条呈多态性,多态性带比率平均为92.5%;29对SRAP引物组合共产生651条扩增带,其中638条呈多态性,多态性带比率平均为98.0%,从分子水平揭示了野菊丰富的遗传多样性。12个居群间的Nei's遗传距离分布在0.211 7～0.494 9之间;聚类分析表明,南京野菊和四川野菊遗传关系较近,武夷山野菊独立成一组,与其他地理居群野菊遗传关系较远,不同地理居群野菊的遗传变异与地理分布相关性不明显。
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| 关 键 词： | 野菊 地理居群 形态性状 分子标记分析 遗传多样性 |
Analysis of genetic diversity among 12 geographicalpopulations of Dendranthema indicum |
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| ZHANG Xian-yan,ZHANG Fei,CHEN Fa-di,GUO Hui-min,CHEN Su-mei.Analysis of genetic diversity among 12 geographicalpopulations of Dendranthema indicum[J].Journal of Nanjing Agricultural University,2011,34(3). |
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| Authors: | ZHANG Xian-yan ZHANG Fei CHEN Fa-di GUO Hui-min CHEN Su-mei |
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| Institution: | ZHANG Xian-yan,ZHANG Fei,CHEN Fa-di,GUO Hui-min,CHEN Su-mei(College of Horticulture,Nanjing Agricultural University,Nanjing 210095,China) |
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| Abstract: | Morphological characteristics and molecular markers were used to study the genetic diversity among 12 populations of Dendranthema indicum.The results showed that morphology characteristics had considerable variances(14.06%-67.50%)among geographical populations.The variations of morphological characters of the D.indicum may be caused mainly by the leafstalk length,the leaf length/leafstalk length,the inflorescence diameter,the ray floret length,the ray floret width,and the ray floret length/ray floret width.... |
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| Keywords: | Dendranthema indicum geographical population morphological characteristics molecular marker analysis genetic diversity |
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