RT Journal Article SR Electronic(1) A1 Madhaiyan, Munusamy A1 Saravanan, Venkatakrishnan Sivaraj A1 Wirth, Joseph S. A1 Whitman, William B.YR 2020 T1 Reclassification of Sphingomonas aeria as a later heterotypic synonym of Sphingomonas carotinifaciens based on whole-genome sequence analysis JF International Journal of Systematic and Evolutionary Microbiology, VO 70 IS 4 SP 2355 OP 2358 DO https://doi.org/10.1099/ijsem.0.004045 PB Microbiology Society, SN 1466-5034, AB The 16S rRNA gene sequences of Sphingomonas carotinifaciens L9-754T and Sphingomonas aeria B093034T possess 99.71 % sequence similarity. Further studies were undertaken to clarify the taxonomic assignments of these species. Whole-genome comparisons showed that S. aeria B093034Tand S. carotinifaciens L9-754T shared 96.9 % average nucleotide identity, 98.4 % average amino acid identity and 76.1 % digital DNA–DNA hybridization values. These values exceeded or approached the recommended species delineation threshold values. Furthermore, a phylogenetic tree based on 41 of the most conserved genes provided additional evidence that S. aeria B093034T and S. carotinifaciens L9-754T are very closely related. Based on this evidence we propose the reclassification of S. aeria Xue et al. 2018 as a later heterotypic synonym of S. carotinifaciens Madhaiyan et al. 2017., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.004045