单振菊,冯震,周根,邓晓玲. 南方5省区柑橘黄龙病病原16S rDNA片段的克隆与序列分析[J]. 华南农业大学学报, 2008, 29(2): 25-29. DOI: 10.7671/j.issn.1001-411X.2008.02.006
    引用本文: 单振菊,冯震,周根,邓晓玲. 南方5省区柑橘黄龙病病原16S rDNA片段的克隆与序列分析[J]. 华南农业大学学报, 2008, 29(2): 25-29. DOI: 10.7671/j.issn.1001-411X.2008.02.006
    SHAN Zhen-ju,FENG Zhen,ZHOU Gen,DENG Xiao-ling. Cloning and Sequence Analysis of 16S rDNA of Citrus Huanglongbing Agents Collected from Five Provinces in South China[J]. Journal of South China Agricultural University, 2008, 29(2): 25-29. DOI: 10.7671/j.issn.1001-411X.2008.02.006
    Citation: SHAN Zhen-ju,FENG Zhen,ZHOU Gen,DENG Xiao-ling. Cloning and Sequence Analysis of 16S rDNA of Citrus Huanglongbing Agents Collected from Five Provinces in South China[J]. Journal of South China Agricultural University, 2008, 29(2): 25-29. DOI: 10.7671/j.issn.1001-411X.2008.02.006

    南方5省区柑橘黄龙病病原16S rDNA片段的克隆与序列分析

    Cloning and Sequence Analysis of 16S rDNA of Citrus Huanglongbing Agents Collected from Five Provinces in South China

    • 摘要: 采集了广东、广西、贵州、福建、云南5省区的8个柑橘黄龙病样品,利用黄龙病病原的特异引物对其16S rD-NA片段进行PCR扩增,将其扩增产物纯化、回收,并与 pMD18-T Vector 连接,转化大肠杆菌(Esherichia coli)DH5α,筛选含有黄龙病病原16S rDNA片段的阳性克隆,进行序列测定.利用生物信息学软件对所克隆的序列进行同源性分析和聚类分析.结果表明:来自我国南方5省区的柑橘黄龙病病原16S rDNA的序列与亚洲种(L22532)的同源性为96.9%~98.6%,与非洲种(L22533)的同源性为94.5%~97.1%,与美洲种(AY742824)的同源性为92.5%~94.2%.表明我国南方5省区柑橘黄龙病均属于亚洲种,但在亚洲种内部不同地区的黄龙病病原也发生了微小的变异,其中福建厦门和云南个旧的2个菌株变异较大.

       

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