Genome-based classification of the family Haloferacaceae and description of five novel species of Halobaculum

Abstract The taxonomic status of some species of Halobellus, Haloferax, Halogranum, and Haloplanus within the family Haloferacaceae was elucidated by phylogenetic, phylogenomic, and comparative genomic analyses. The relative species of each genus should constitute a single species based on the overall genome-related indexes proposed for species demarcation. The cutoff values of AAI (72.1%), ANI (82.2%), and rpoB′ gene similarity (90.7%) were proposed to differentiate genera within the family Haloferacaceae. According to these standards, a novel genus related to the genus Halobaculum was proposed to accommodate Halobaculum halophilum Gai3-$ 2^{ T} $ and Halobaculum salinum NJ-3-$ 1^{ T} $. Five halophilic archaeal strains, $ DT31^{T} $, $ DT55^{T} $, $ DT92^{T} $, $ SYNS20^{T} $, and $ YSMS11^{T} $, isolated from a tidal flat and a marine solar saltern in China, were subjected to polyphasic classification. The phenotypic, phylogenetic, phylogenomic, and comparative genomic analyses revealed that strains $ DT31^{T} $ (= CGMCC 1.$ 18923^{ T} $ = JCM $ 35417^{ T} $), $ DT55^{T} $ (= CGMCC 1.$ 19048^{ T} $ = JCM $ 36147^{ T} $), $ DT92^{T} $ (= CGMCC 1.$ 19057^{ T} $ = JCM $ 36148^{ T} $), $ SYNS20^{T} $ (= CGMCC 1.$ 62628^{ T} $ = JCM $ 36154^{ T} $), and $ YSMS11^{T} $ (= CGMCC 1.$ 18927^{ T} $ = JCM $ 34912^{ T} $) represent five novel species of the genus Halobaculum, for which the names, Halobaculum lipolyticum sp. nov., Halobaculum marinum sp. nov., Halobaculum litoreum sp. nov., Halobaculum halobium sp. nov., and Halobaculum limi sp. nov., are proposed..

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:28

Enthalten in:

Extremophiles - 28(2024), 2 vom: 28. März

Sprache:

Englisch

Beteiligte Personen:

Tan, Shun [VerfasserIn]
Zhu, Ling-Rui [VerfasserIn]
Zhang, Qing-Ke [VerfasserIn]
Dong, Xin-Yue [VerfasserIn]
Hou, Jing [VerfasserIn]
Cui, Heng-Lin [VerfasserIn]

Links:

Volltext [lizenzpflichtig]

BKL:

42.30 / Mikrobiologie

42.90 / Ökologie: Allgemeines

Themen:

Gen. nov.
Novel species
Synonym

Anmerkungen:

© The Author(s), under exclusive licence to Springer Nature Japan KK, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

doi:

10.1007/s00792-024-01337-3

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

SPR055332471