High genetic similarity of Streptococcus agalactiae and Streptococcus difficilis: S. difficilis Eldar et al. 1995 is a later synonym of S. agalactiae Lehmann and Neumann 1896 (Approved Lists 1980)
1 Department of Microbiology, Regeneration and Advanced Medical Science, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan 2 Marine Biotechnology Institute, 3-75-1 Heita, Kamaishi, Iwate, Japan Correspondence Yoshiaki Kawamura kawamura{at}cc.gifu-u.ac.jp The genetic rel...
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| creator | Kawamura, Yoshiaki Itoh, Yoko Mishima, Noriko Ohkusu, Kiyufumi Kasai, Hiroaki Ezaki, Takayuki |
| description | 1 Department of Microbiology, Regeneration and Advanced Medical Science, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan
2 Marine Biotechnology Institute, 3-75-1 Heita, Kamaishi, Iwate, Japan
Correspondence Yoshiaki Kawamura kawamura{at}cc.gifu-u.ac.jp
The genetic relationship between Streptococcus agalactiae and Streptococcus difficilis was studied. S. difficilis 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 S. agalactiae and S. difficilis are closely related. Sequence similarity values between these two species were 100·0 % for 16S rRNA, 99·6 % for gyrB , 98·6 % for sodA , 99·5 % for gyrA and 99·8 % for parC genes. These data strongly suggest that S. agalactiae and S. difficilis are synonyms. The biochemical characteristics of S. difficilis , which differ slightly from those of typical S. agalactiae , are similar to those of other group B, type Ib streptococci isolated from fish and frogs. Whole genome DNADNA hybridization values between the type strains of both species were greater than 78·6 %. On the basis of these data, it is proposed that S. difficilis is a later synonym of S. agalactiae .
Published online ahead of print on 12 November 2004 as DOI 10.1099/ijs.0.63403-0.
The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA, gyrB , sodA , gyrA and parC gene sequences discussed in this study can be found in Fig. 1.
Tables giving details of the biochemical characteristics of Streptococcus difficile and Streptococcus agalactiae , and the sequence similarity data for various Streptococcus species are available as supplementary material in IJSEM Online. |
| doi_str_mv | 10.1099/ijs.0.63403-0 |
| format | Article |
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2 Marine Biotechnology Institute, 3-75-1 Heita, Kamaishi, Iwate, Japan
Correspondence Yoshiaki Kawamura kawamura{at}cc.gifu-u.ac.jp
The genetic relationship between Streptococcus agalactiae and Streptococcus difficilis was studied. S. difficilis 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 S. agalactiae and S. difficilis are closely related. Sequence similarity values between these two species were 100·0 % for 16S rRNA, 99·6 % for gyrB , 98·6 % for sodA , 99·5 % for gyrA and 99·8 % for parC genes. These data strongly suggest that S. agalactiae and S. difficilis are synonyms. The biochemical characteristics of S. difficilis , which differ slightly from those of typical S. agalactiae , are similar to those of other group B, type Ib streptococci isolated from fish and frogs. Whole genome DNADNA hybridization values between the type strains of both species were greater than 78·6 %. On the basis of these data, it is proposed that S. difficilis is a later synonym of S. agalactiae .
Published online ahead of print on 12 November 2004 as DOI 10.1099/ijs.0.63403-0.
The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA, gyrB , sodA , gyrA and parC gene sequences discussed in this study can be found in Fig. 1.
Tables giving details of the biochemical characteristics of Streptococcus difficile and Streptococcus agalactiae , and the sequence similarity data for various Streptococcus species are available as supplementary material in IJSEM Online.</description><identifier>ISSN: 1466-5026</identifier><identifier>EISSN: 1466-5034</identifier><identifier>DOI: 10.1099/ijs.0.63403-0</identifier><identifier>PMID: 15774692</identifier><language>eng</language><publisher>Reading: Soc General Microbiol</publisher><subject>Animals ; Bacterial Proteins - genetics ; Bacteriology ; Biological and medical sciences ; DNA Gyrase - genetics ; DNA Topoisomerase IV - genetics ; DNA, Bacterial - analysis ; Fundamental and applied biological sciences. Psychology ; Humans ; Microbiology ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Phylogeny ; RNA, Ribosomal, 16S - genetics ; Sequence Analysis, DNA ; Streptococcus - classification ; Streptococcus - genetics ; Streptococcus agalactiae ; Streptococcus agalactiae - classification ; Streptococcus agalactiae - genetics ; Streptococcus difficilis ; Superoxide Dismutase - genetics ; Systematics</subject><ispartof>International journal of systematic and evolutionary microbiology, 2005-03, Vol.55 (2), p.961-965</ispartof><rights>2006 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c353t-831e2fcf605f952ac390df83fabaf21592e0afff778d5e80385e0cae898ffb573</citedby><cites>FETCH-LOGICAL-c353t-831e2fcf605f952ac390df83fabaf21592e0afff778d5e80385e0cae898ffb573</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,3733,3734,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16647947$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15774692$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kawamura, Yoshiaki</creatorcontrib><creatorcontrib>Itoh, Yoko</creatorcontrib><creatorcontrib>Mishima, Noriko</creatorcontrib><creatorcontrib>Ohkusu, Kiyufumi</creatorcontrib><creatorcontrib>Kasai, Hiroaki</creatorcontrib><creatorcontrib>Ezaki, Takayuki</creatorcontrib><title>High genetic similarity of Streptococcus agalactiae and Streptococcus difficilis: S. difficilis Eldar et al. 1995 is a later synonym of S. agalactiae Lehmann and Neumann 1896 (Approved Lists 1980)</title><title>International journal of systematic and evolutionary microbiology</title><addtitle>Int J Syst Evol Microbiol</addtitle><description>1 Department of Microbiology, Regeneration and Advanced Medical Science, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan
2 Marine Biotechnology Institute, 3-75-1 Heita, Kamaishi, Iwate, Japan
Correspondence Yoshiaki Kawamura kawamura{at}cc.gifu-u.ac.jp
The genetic relationship between Streptococcus agalactiae and Streptococcus difficilis was studied. S. difficilis 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 S. agalactiae and S. difficilis are closely related. Sequence similarity values between these two species were 100·0 % for 16S rRNA, 99·6 % for gyrB , 98·6 % for sodA , 99·5 % for gyrA and 99·8 % for parC genes. These data strongly suggest that S. agalactiae and S. difficilis are synonyms. The biochemical characteristics of S. difficilis , which differ slightly from those of typical S. agalactiae , are similar to those of other group B, type Ib streptococci isolated from fish and frogs. Whole genome DNADNA hybridization values between the type strains of both species were greater than 78·6 %. On the basis of these data, it is proposed that S. difficilis is a later synonym of S. agalactiae .
Published online ahead of print on 12 November 2004 as DOI 10.1099/ijs.0.63403-0.
The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA, gyrB , sodA , gyrA and parC gene sequences discussed in this study can be found in Fig. 1.
Tables giving details of the biochemical characteristics of Streptococcus difficile and Streptococcus agalactiae , and the sequence similarity data for various Streptococcus species are available as supplementary material in IJSEM Online.</description><subject>Animals</subject><subject>Bacterial Proteins - genetics</subject><subject>Bacteriology</subject><subject>Biological and medical sciences</subject><subject>DNA Gyrase - genetics</subject><subject>DNA Topoisomerase IV - genetics</subject><subject>DNA, Bacterial - analysis</subject><subject>Fundamental and applied biological sciences. 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2 Marine Biotechnology Institute, 3-75-1 Heita, Kamaishi, Iwate, Japan
Correspondence Yoshiaki Kawamura kawamura{at}cc.gifu-u.ac.jp
The genetic relationship between Streptococcus agalactiae and Streptococcus difficilis was studied. S. difficilis 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 S. agalactiae and S. difficilis are closely related. Sequence similarity values between these two species were 100·0 % for 16S rRNA, 99·6 % for gyrB , 98·6 % for sodA , 99·5 % for gyrA and 99·8 % for parC genes. These data strongly suggest that S. agalactiae and S. difficilis are synonyms. The biochemical characteristics of S. difficilis , which differ slightly from those of typical S. agalactiae , are similar to those of other group B, type Ib streptococci isolated from fish and frogs. Whole genome DNADNA hybridization values between the type strains of both species were greater than 78·6 %. On the basis of these data, it is proposed that S. difficilis is a later synonym of S. agalactiae .
Published online ahead of print on 12 November 2004 as DOI 10.1099/ijs.0.63403-0.
The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA, gyrB , sodA , gyrA and parC gene sequences discussed in this study can be found in Fig. 1.
Tables giving details of the biochemical characteristics of Streptococcus difficile and Streptococcus agalactiae , and the sequence similarity data for various Streptococcus species are available as supplementary material in IJSEM Online.</abstract><cop>Reading</cop><pub>Soc General Microbiol</pub><pmid>15774692</pmid><doi>10.1099/ijs.0.63403-0</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Animals Bacterial Proteins - genetics Bacteriology Biological and medical sciences DNA Gyrase - genetics DNA Topoisomerase IV - genetics DNA, Bacterial - analysis Fundamental and applied biological sciences. Psychology Humans Microbiology Molecular Sequence Data Nucleic Acid Hybridization Phylogeny RNA, Ribosomal, 16S - genetics Sequence Analysis, DNA Streptococcus - classification Streptococcus - genetics Streptococcus agalactiae Streptococcus agalactiae - classification Streptococcus agalactiae - genetics Streptococcus difficilis Superoxide Dismutase - genetics Systematics |
| title | High genetic similarity of Streptococcus agalactiae and Streptococcus difficilis: S. difficilis Eldar et al. 1995 is a later synonym of S. agalactiae Lehmann and Neumann 1896 (Approved Lists 1980) |
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