Genome‑Based Reclassification of Dactylosporangium matsuzakiense Shomura and Niida 1983 As A Later Heterotypic Synonym of Dactylosporangium vinaceum Shomura et al. 1983 and Proposal of Dactylosporangium vinaceum subsp. vinaceum subsp. nov. and Dactylosporangium vinaceum subsp. matsuzakiense subsp. nov.

IF 2.6 3区生物学 Q3 MICROBIOLOGY

Current Microbiology Pub Date : 2025-08-23 DOI:10.1007/s00284-025-04448-y

Rafik Ould Taleb, Rafika Saker, Khaoula Bouznada, Hadj Ahmed Belaouni, Atika Meklat

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引用次数: 0

Abstract

The present study reports comprehensive phylogenomic and comparative analyses between Dactylosporangium vinaceum NRRL B-16297^T and Dactylosporangium matsuzakiense VKM Ac-1321^T to clarify their taxonomic relationship. Genomic relatedness analyses between both type strains yielded an average nucleotide identity (ANI) of 97.6%, an average amino acid identity (AAI) of 99.1% and an estimated digital DNA-DNA (dDDH) hybridization of 79.1%, indicating a shared taxonomic position for D. vinaceum and D. matsuzakiense. This relationship is confirmed by phylogenetic analysis based on the 16S rRNA gene, whole genome and core genes, which indicates that the strains studied form a well-supported monophyletic group. Based on these comprehensive findings, we propose to reclassify Dactylosporangium vinaceum NRRL B-16297^T (= SF-2127^T) and Dactylosporangium matsuzakiense VKM Ac-1321^T (= SF-2052^T) as the same species, in which the name should be Dactylosporangium vinaceum Shomura et al. 1983. Furthermore, based on dDDH value and associated phenotypic data, type strain NRRL B-16297^T represents Dactylosporangium vinaceum subsp. vinaceum subsp. nov. and type strain VKM Ac-1321^T represents Dactylosporangium vinaceum subsp. matsuzakiense subsp. nov.

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松崎Dactylosporangium matsuzakiense Shomura and Niida 1983作为Dactylosporangium vinaceum后异型同系物的基因组重新分类Shomura et al. 1983和vinaceum Dactylosporangium subsp的提出。vinaceum无性系种群。11 .和长柄孢子囊；matsuzakiense无性系种群。11月。

本文对Dactylosporangium vinaceum NRRL B-16297 T和Dactylosporangium matsuzakiense VKM Ac-1321 T进行了系统发育和比较分析，以明确两者的分类关系。两种类型菌株的基因组相关性分析结果显示，平均核苷酸同源性（ANI）为97.6%，平均氨基酸同源性（AAI）为99.1%，估计数字DNA-DNA （dDDH）杂交率为79.1%，表明D. vinaceum和D. matsuzakiense具有共同的分类位置。基于16S rRNA基因、全基因组和核心基因的系统发育分析证实了这一关系，表明所研究的菌株形成了一个良好的单系群。基于这些综合发现，我们建议将Dactylosporangium vinaceum NRRL B-16297 T （= SF-2127 T）与Dactylosporangium matsuzakiense VKM Ac-1321 T （= SF-2052 T）重新分类为同一种，其中名称应为Dactylosporangium vinaceum Shomura et al. 1983。此外，根据dDDH值和相关表型数据，类型菌株NRRL B-16297 T代表Dactylosporangium vinaceum亚种。vinaceum无性系种群。类型菌株VKM ac - 1321t代表葡萄芽孢杆菌亚种。matsuzakiense无性系种群。11月。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Current Microbiology 生物-微生物学

CiteScore

4.80

自引率

3.80%

发文量

380

审稿时长

2.5 months

期刊介绍： Current Microbiology is a well-established journal that publishes articles in all aspects of microbial cells and the interactions between the microorganisms, their hosts and the environment. Current Microbiology publishes original research articles, short communications, reviews and letters to the editor, spanning the following areas: physiology, biochemistry, genetics, genomics, biotechnology, ecology, evolution, morphology, taxonomy, diagnostic methods, medical and clinical microbiology and immunology as applied to microorganisms.