摘要
通过rRNA基因内转录间隔区的碱基序列分析,对中华根瘤菌属Sinorhizobium、慢生根瘤菌属Bradyrhizobium和中慢生根瘤菌属Mesorhizobium种间亲缘关系十分密切的菌株进行区分.结果表明,rRNA基因间隔区序列能很好地区分种间亲缘关系十分密切的菌株.用rRNA基因间隔区序列构建的系统发育树与rRNA基因序列构建的系统发育树结果十分相似.
Phylogenetic closely related species from Sinorhizobium, Bradyrhizobium and Mesorhizobium were studied by analysis of rRNA gene intergenic spacer sequence. The results indicated that sequences of rRNA gene intergenic spacer would clarify the closely related species. The phylogenetic tree constructed by sequence of 16S-23S rRNA gene intergenetic spacer is very similar with that of 16S rRNA gene sequence.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2004年第4期58-62,共5页
Journal of South China Agricultural University
基金
国家自然科学基金资助项目(30300001和30270001)
华南农业大学校长基金资助项目(4100 K03113)