Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Sevilla, 41012 Sevilla, Spain.
Int J Syst Evol Microbiol. 2024 Sep;74(9). doi: 10.1099/ijsem.0.006510.
The haloarchaeal genera and , belonging to the family , order , class , within the phylum , have previously exhibited significant phylogenetic and taxonomic overlaps. This issue was recently resolved by merging the two genera into a single genus, . However, and were described almost simultaneously with the proposal to unify the genera and . Their names were validly published under the International Code of Nomenclature of Prokaryotes (ICNP) according to Validation List no. 217, alongside six species and the transfer of the existing species into the genus . Therefore a phylogenetic, phylogenomic, and comparative genomic analysis was carried out to clarify the taxonomic status of these two haloarchaeal species, and , with lower priority than the six new species of the genus . Phylogenetic studies of 16S rRNA and gene sequences, along with phylogenomic reconstructions using single-copy core-orthologous proteins, indicated that the two species clustered with the members of the genus . The overall genome relatedness indexes (OGRIs), comparative analyses of phenotypic features, and polar lipid profiles further supported their taxonomic reassignment as two separate species within the genus . Consequently, we propose the reclassification of Straková . 2024 and Straková . 2024 into the genus , as comb. nov. and comb. nov., respectively, in accordance with the ICNP.
先前，归入科、目、纲、门的嗜盐古菌属和属于科、目、纲、门的属在系统发育和分类上存在显著重叠。这个问题最近通过将两个属合并为一个属来解决。然而，和几乎是同时被描述的，当时提议将和统一为一个属。根据国际原核生物命名法规（ICNP）第 217 号确认清单，它们的名称是有效的，与六个属的种和现有属的种的转移一起被确认。因此，进行了系统发育、系统基因组学和比较基因组学分析，以澄清这两个嗜盐古菌种和的分类地位，其优先级低于属的六个新种。16S rRNA 和基因序列的系统发育研究，以及使用单拷贝核心直系同源蛋白进行的系统基因组重建表明，这两个种与属的成员聚类。总的基因组相关指数（OGRI）、表型特征的比较分析和极性脂谱进一步支持了它们作为属内两个独立种的分类重分配。因此，我们建议根据 ICNP 将 Straková. 2024 和 Straková. 2024 重新分类为属，分别为组合新种和组合新种。
