| 长白山三种赤杨根瘤内Frankia基因多样性的REP分析 |
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| 引用本文： | 唐晓萌,代玉梅,熊智,曹军.长白山三种赤杨根瘤内Frankia基因多样性的REP分析[J].生态学杂志,2004,23(3):68-71. |
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| 作者姓名： | 唐晓萌 代玉梅 熊智 曹军 |
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| 作者单位： | 1. 中国科学院沈阳应用生态研究所,沈阳,110016
2. 西南林学院,昆明,650224 |
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| 基金项目： | 国家重点基础研究发展规划项目 (NO 0 0 1CB10 89)，中国科学院沈阳应用生态研究所创新项目 (C11AG -SCXZY0 10 6)，中国科学院长白山森林生态系统定位研究站资助 |
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| 摘 要： | 利用REP PCR方法研究了长白山不同海拔处 3种赤杨根瘤内Frankia菌基因多样性。结果表明 ,赤杨根瘤内Frankia菌存在丰富的基因多样性。宿主和海拔因素共同影响长白山赤杨属Frankia菌的基因多样性 :东北赤杨Frankia菌的宿主专一性很强 ,西伯利亚赤杨和色赤杨的Frankia菌的有较近的亲缘关系。不同海拔的同种宿主共生的Frankia菌基因类型不同 ,相同海拔的西伯利亚赤杨和色赤杨的Frankia菌出现宿主混乱现象
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| 关 键 词： | 基因多样性 赤杨 海拔 Frankia REP |
| 文章编号： | 1000-4890(2004)03-0068-04 |
| 修稿时间： | 2003年4月30日 |
Genetic diversity analysis of Frankia strains in nodules of three Alnus species from Changbai Mountain by REP fingerprinting |
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| TANG Xiaomeng ,DAI Yumei ,XIONG Zhi ,CAO Jun.Genetic diversity analysis of Frankia strains in nodules of three Alnus species from Changbai Mountain by REP fingerprinting[J].Chinese Journal of Ecology,2004,23(3):68-71. |
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| Authors: | TANG Xiaomeng DAI Yumei XIONG Zhi CAO Jun |
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| Institution: | TANG Xiaomeng 1,DAI Yumei 1,XIONG Zhi 2,CAO Jun 1** |
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| Abstract: | The genetic diversity of the Frankia strains in the nodules of Alnus tinctoria,A.mandshurica and A.sibirica growing at different altitude in Changbai Mountain was studied by REP-PCR fingerprinting.The REP-PCR fingerprint patterns revealed that uncultured Frankia strains tested had a high genetic diversity.Host and altitude factors influenced the genetic diversity.Frankia strains from A.mandshurica showed greater specialization toward the host,and Frankia stains from A.sibirica and A.tinctoria had a closer affinity.The Frankia stains from the same alder distributing at different altitude belonged to different REP patterns,and the Frankia stains from A.sibirica and A.tinctoria at the same altitude showed promiscuity. |
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| Keywords: | genetic diversity Alnus altitude Frankia REP |
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