PHYLOGENETIC INTERRELATIONSHIPS OF MEMBERS OF THE GENERA AEROMONAS AND PLESIOMONAS AS DETERMINED BY 16S RIBOSOMAL DNA SEQUENCING - LACK OF CONGRUENCE WITH RESULTS OF DNA-DNA HYBRIDIZATIONS
PHYLOGENETIC INTERRELATIONSHIPS OF MEMBERS OF THE GENERA AEROMONAS AND PLESIOMONAS AS DETERMINED BY 16S RIBOSOMAL DNA SEQUENCING - LACK OF CONGRUENCE WITH RESULTS OF DNA-DNA HYBRIDIZATIONS
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DOI：
10.1099/00207713-42-3-412
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发表时间：
1992-07-01
期刊：
影响因子：
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通讯作者：
COLLINS, MD
中科院分区：
文献类型：
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作者：
MARTINEZMURCIA, AJ;BENLLOCH, S;COLLINS, MD
采用小亚基核糖体DNA （rDNA）测序方法研究了气单胞菌属和Plesiomonas属成员的系统发育相互关系。气单胞菌属的成员在变形菌门的伽马亚纲中形成了一个独特的分支。志贺氏Plesiomonas shigelloides也聚集在变形菌门γ亚纲的范围内，但与肠杆菌科成员的关系比与气单胞菌科成员的关系更密切。气单胞菌属各种之间的整体序列相似性非常高（约为98 ~ 100%）。从rDNA序列数据分析中得出的一些关系与染色体DNA-DNA配对实验的结果明显不一致。诊断性rDNA特征可能对大多数气单胞菌种类的区分有价值。
The phylogenetic interrelationships of members of the genera Aeromonas and Plesiomonas were investigated by using small-subunit ribosomal DNA (rDNA) sequencing. Members of the genus Aeromonas formed a distinct line within the gamma subclass of the Proteobacteria. Plesiomonas shigelloides also clustered within the confines of the gamma subclass of the Proteobacteria but exhibited a closer association with members of the family Enterobacteriaceae than with members of the family Aeromonadaceae. Species of the genus Aeromonas exhibited very high levels of overall sequence similarity (ca. 98 to 100%) with each other. Several of the relationships derived from an analysis of the rDNA sequence data were in marked disagreement with the results of chromosomal DNA-DNA pairing experiments. Diagnostic rDNA signatures that have possible value for differentiating most Aeromonas species were discerned.