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- Volume 67, Issue 12
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f Genome-based reclassification of Sphingopyxis ummariensis as a later heterotypic synonym of Sphingopyxis terrae, with the descriptions of Sphingopyxis terrae subsp. terrae subsp. nov. and Sphingopyxis terrae subsp. ummariensis subsp. nov.
- Authors: Guang-Da Feng1,2 , Dong-Dong Wang1 , Song-Zhen Yang1 , Hua-Ping Li2 , Hong-Hui Zhu1
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- VIEW AFFILIATIONS
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1 1State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Microbial Culture Collection Center (GDMCC), Guangdong Institute of Microbiology, Guangzhou 510070, PR China 2 2College of Agriculture, South China Agricultural University, Guangzhou 510642, PR China
- *Correspondence: Guang-Da Feng [email protected], Hong-Hui Zhu [email protected]
- First Published Online: 31 October 2017, International Journal of Systematic and Evolutionary Microbiology 67: 5279-5283, doi: 10.1099/ijsem.0.002465
- Subject: New Taxa - Proteobacteria
- Received:
- Accepted:
- Cover date:




Genome-based reclassification of Sphingopyxis ummariensis as a later heterotypic synonym of Sphingopyxis terrae, with the descriptions of Sphingopyxis terrae subsp. terrae subsp. nov. and Sphingopyxis terrae subsp. ummariensis subsp. nov., Page 1 of 1
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During the phylogenetic analysis of the genus Sphingopyxis , we found that an incorrect 16S rRNA gene sequence (accession number: D13727) was provided in the original description of Sphingopyxisterrae NBRC 15098T and the wrong sequence has been adopted and used for a long time. It should be replaced by the new correct 16S rRNA gene sequence (accession number: MF618306). The new sequence shared the highest similarity (99.8 %) with that of Sphingopyxisummariensis DSM 24316T. The average nucleotide identity (ANI) (96.87 %) and digital DNA–DNA hybridization (75.30 %) values based on the whole-genome sequences and almost the same phenotypic and chemotaxonomic characteristics of the two type strains revealed that Sphingopyxis ummariensis should be a later heterotypic synonym of Sphingopyxis terrae . However, the distinctions in the genome size, hydrolysis of aesculin, α-glucosidase and particularly the fatty acid profiles strongly support that strain DSM 24316T should be considered to represent a novel subspecies of Sphingopyxis terrae. Two novel subspecies are therefore proposed, namely Sphingopyxisterrae subsp. terrae subsp. nov. (type strain E-1-AT=NBRC 15098T=JCM 10195T=DSM 8831T=LMG 17326T) and Sphingopyxisterrae subsp. ummariensis subsp. nov. (type strain UI2T=DSM 24316T=CCM 7428T=MTCC 8591T).
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The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of Sphingopyxis terrae subsp. terrae JCM 10195T is MF618306. The whole-genome shotgun project for Sphingopyxis terrae subsp. ummariensis DSM 24316T has been deposited at GenBank/EMBL/DDBJ under the accession number NWUR00000000.
- Keyword(s): whole genome sequence, digital DNA–DNA hybridization, Sphingopyxis terrae subsp. ummariensis, 16S rRNA gene sequence, average nucleotide identity, fatty acid profiles
© 2017 IUMS | Published by the Microbiology Society
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