title: Reclassification of Halomonas caseinilytica Wu et al. 2008 as a later synonym of Halomonas sinaiensis Romano et al. 2007, and emendation of the species description.
abstract: The taxonomic relationship between Halomonas sinaiensis DSM 18067(T) and Halomonas caseinilytica JCM 14802(T) has not been established, despite the high similarity (99.6 %) of their 16S rRNA gene sequences. To clarify their taxonomic positions, a polyphasic approach was applied to both type strains. Genomic relatedness analyses between H. sinaiensis DSM 18067(T) and H. caseinilytica JCM 14802(T) resulted in an average nucleotide identity of 99.5 % and an estimated DNA-DNA hybridization of 96.1 % by the genome-to-genome distance calculator, indicating that they belong to a single species. Phenotypic and chemotaxonomic characteristics showed no pronounced differences between the two type strains. Based on the results of this polyphasic study, it is proposed that H. caseinilytica JCM 14802(T) is a later heterotypic synonym of H. sinaiensis DSM 18067(T). An emended description for the species H. sinaiensis is given.
authors.affiliation: Division of Polar Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, 21990, Republic of Korea.
authors.forename: Chung Yeon
authors.initials: CY
authors.lastname: Hwang
authors.affiliation: Division of Polar Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, 21990, Republic of Korea.
authors.forename: Inae
authors.initials: I
authors.lastname: Lee
authors.affiliation: Division of Polar Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, 21990, Republic of Korea.
authors.forename: Soo Jung
authors.initials: SJ
authors.lastname: Yoon
authors.affiliation: Division of Polar Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, 21990, Republic of Korea.
authors.forename: Yung Mi
authors.initials: YM
authors.lastname: Lee
authors.affiliation: Division of Earth-System Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, 21990, Republic of Korea.
authors.forename: Won Sang
authors.initials: WS
authors.lastname: Lee
authors.affiliation: Division of Polar Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, 21990, Republic of Korea. hklee@kopri.re.kr.
authors.forename: Hong Kum
authors.initials: HK
authors.lastname: Lee
mesh_terms: D016680:Genome, Bacterial; D020632:Halomonas / Q000145:classification* / Q000235:genetics; D007564:Japan; D058889:Molecular Typing; D010802:Phylogeny; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S / Q000235:genetics
chemical_list: D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S
keywords: Gammaproteobacteria; Halomonas caseinilytica; Halomonas sinaiensis; Heterotypic synonym