1887

Abstract

The genetic relationship between and was studied. was originally described as serologically non-typable but was later reported to be a group B, type Ib streptococcus. Upon comparative analysis of five gene sequences, it was found that and are closely related. Sequence similarity values between these two species were 100·0 % for 16S rRNA, 99·6 % for , 98·6 % for , 99·5 % for and 99·8 % for genes. These data strongly suggest that and are synonyms. The biochemical characteristics of , which differ slightly from those of typical , are similar to those of other group B, type Ib streptococci isolated from fish and frogs. Whole genome DNA–DNA hybridization values between the type strains of both species were greater than 78·6 %. On the basis of these data, it is proposed that is a later synonym of .

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2005-03-01
2019-11-17
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vol. , part 2, pp. 961–965

Tables giving details of the biochemical characteristics of and , and the sequence similarity data for various species are available to download. [PDF](94KB)



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