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<p>In the present study, the taxonomic position of <i>Salisediminibacterium haloalkalitolerans</i> was evaluated by determining the 16S rRNA gene sequence similarity, genome relatedness, and phylogenetic analyses. The 16S rRNA gene sequences extracted from the genomes of <i>Salisediminibacterium haloalkalitolerans</i> 10nlg<sup>T</sup> and <i>Salisediminibacterium halotolerans</i> DSM 26530<sup>T</sup> showed 100% similarity, supporting their classification as the same species. The average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) values between <i>S. haloalkalitolerans</i> and <i>S. halotolerans</i> were 97.7 and 80.2%, respectively, above the cutoff value (95–96% ANI; 70% dDDH) for species delineation. <i>S. haloalkalitolerans</i> and <i>S. halotolerans</i> should be classified as the same species because the 16S rRNA gene phylogeny and phylogenomic tree (based on 71 bacterial single-copy genes) showed no genetic divergence between them. Based on the above results and the rule of priority in nomenclature, we propose to reclassify <i>Salisediminibacterium haloalkalitolerans</i> Sultanpuram et al. 2015 as a later heterotypic synonym of <i>Salisediminibacterium halotolerans</i> Jiang et al. 2012.</p>

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Reclassification of Salisediminibacterium haloalkalitolerans Sultanpuram et al. 2015 as a Later Heterotypic Synonym of Salisediminibacterium halotolerans Jiang et al. 2012

  • 期刊论文

  • 发表日期：

    2025年1月21日

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  • Yanyan Wang,
  • Haijie Wang,
  • Syed Raziuddin Quadri,
  • Ngoc Tung Quach,
  • Wen-Jun Li,
  • Feng Wang,
  • Jun Yuan,
  • Chao Chen,
  • Manik Prabhu Narsing Rao,
  • Ying-Qian Kang

摘要

In the present study, the taxonomic position of Salisediminibacterium haloalkalitolerans was evaluated by determining the 16S rRNA gene sequence similarity, genome relatedness, and phylogenetic analyses. The 16S rRNA gene sequences extracted from the genomes of Salisediminibacterium haloalkalitolerans 10nlgT and Salisediminibacterium halotolerans DSM 26530T showed 100% similarity, supporting their classification as the same species. The average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) values between S. haloalkalitolerans and S. halotolerans were 97.7 and 80.2%, respectively, above the cutoff value (95–96% ANI; 70% dDDH) for species delineation. S. haloalkalitolerans and S. halotolerans should be classified as the same species because the 16S rRNA gene phylogeny and phylogenomic tree (based on 71 bacterial single-copy genes) showed no genetic divergence between them. Based on the above results and the rule of priority in nomenclature, we propose to reclassify Salisediminibacterium haloalkalitolerans Sultanpuram et al. 2015 as a later heterotypic synonym of Salisediminibacterium halotolerans Jiang et al. 2012.