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Proposal to transfer Bacillus dafuensis and Bacillus massiliigabonensis to the genus Cytobacillus as Cytobacillus dafuensis comb. nov., and Cytobacillus massiliigabonensis comb. nov., respectively

文献类型： 外文期刊

作者： Liu, Bing-Bing 1 ; Liu, Guo-Hong 2 ; Dhulappa, Awalagaway 3 ; Rao, Manik Prabhu Narsing 4 ;

作者机构： 1.Nanyang Inst Technol, Sch Biol & Chem Engn, Key Lab Ind Microbiol Henan Prov, Nanyang 473000, Peoples R China

2.Fujian Acad Agr Sci, Agr Bioresources Res Inst, Fuzhou 350003, Fujian, Peoples R China

3.Maharanis Sci Coll Women, Dept Microbiol, Bangalore 560001, India

4.Univ Autonoma Chile, Fac Ingn, Inst Ciencias Quim Aplicadas, Talca 3460000, Chile

关键词： Reclassification; Cytobacillus dafuensis; Cytobacillus massiliigabonensis; genome analysis

期刊名称：FEMS MICROBIOLOGY LETTERS （ 影响因子：2.1； 五年影响因子：2.8 ）

ISSN： 0378-1097

年卷期： 2023 年 370 卷

页码：

收录情况： SCI

摘要： Reclassification of Bacillus dafuensis and Bacillus massiliigabonensis. In the present study, the taxonomic position of Bacillus dafuensis and Bacillus massiliigabonensis was evaluated using genome-based comparison. The 16S rRNA gene sequence obtained from the Bacillus dafuensis FJAT-25496(T) genome showed 99.7% similarity with the type strain of Cytobacillus citreus, while Bacillus massiliigabonensis Marseille-P2639(T) showed 98.7% similarity with the type species of Cytobacillus solani. The 16S rRNA gene sequence similarity of Bacillus dafuensis FJAT-25496(T) and Bacillus massiliigabonensis Marseille-P2639(T) with Cytobacillus members was above the threshold (94.5%) for genus delineation. In phylogenetic (based on 16S rRNA gene sequences) and phylogenomic (based on 71 bacterial single-copy genes) trees, Bacillus dafuensis and Bacillus massiliigabonensis clustered with Cytobacillus members. The 16S rRNA gene sequence, amino acid identity and percentage of conserved proteins analysis indicated Bacillus dafuensis FJAT-25496(T) and Bacillus massiliigabonensis Marseille-P2639(T) as a member of the genus Cytobacillus. The digital DNA-DNA hybridization and the average nucleotide identity values of Bacillus dafuensis FJAT-25496(T) and Bacillus massiliigabonensis Marseille-P2639(T) with Cytobacillus members was below the cut-off value (70/94%-95%) for species delineation. Based on the results we propose to transfer Bacillus dafuensis and Bacillus massiliigabonensis to the genus Cytobacillus as Cytobacillus dafuensis comb. nov., and Cytobacillus massiliigabonensis comb. nov., respectively.

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