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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo International Journal of Systematic and Evolutionary Microbiology

Volume 75, Issue 3

A whole-genome study suggests a taxonomic rearrangement of as a later heterotypic synonym of and as a later heterotypic synonym of No Access

Abstract

The genus consists of Gram-positive bacteria that are found in nature. The genus, belonging to the family and order , has shown considerable phylogenetic and taxonomic overlaps. Therefore, a phylogenetic, phylogenomic and comparative genomic investigation was conducted to elucidate the taxonomic position of four taxa. Analysis of the 16S rRNA genes showed that the sequence similarity between the tested species ranged from 95.59 to 100%, with VKM Ac-666 as the type species. Moreover, the analysis of digital DNA–DNA hybridization revealed that CGMCC 4.7206ᵀ and JCM 10664ᵀ were 97.97% and DSM 40517ᵀ and JCM 10303ᵀ reached 99.9%. In addition, the average nucleotide identity values for all the combinations exceed 99%, indicating little genomic variation for these strains. Our genomic data strongly indicate the close genetic affinity between Wu 2016 and Liu 2001 and Zhou 1998 and corrig. (Waksman 1923) Labeda 1987, which support their reclassification.

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Keyword(s): digital DNA–DNA hybridization (dDDH) , average nucleotide identity (ANI) , genomics , reclassification and Saccharopolyspora
Funding
This study was supported by the:
  • General Directorate for Scientific Research and Technological Development (DGRSDT)
    • Principal Award Recipient: GuendouzDIF
  • Ministry of Higher Education and Scientific Research of Algeria
    • Principal Award Recipient: GuendouzDIF
© 2025 The Authors
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2025-03-28
2026-02-19

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A whole-genome study suggests a taxonomic rearrangement of Saccharopolyspora subtropica as a later heterotypic synonym of Saccharopolyspora thermophila and Saccharopolyspora spinosporotrichia as a later heterotypic synonym of Saccharopolyspora erythraea
Int J Syst Evol Microbiol 75, 006731 (2025); https://doi.org/10.1099/ijsem.0.006731
/content/journal/ijsem/10.1099/ijsem.0.006731
/content/journal/ijsem/10.1099/ijsem.0.006731
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