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Description of Dorea chungnamensis sp. nov., an Aerotolerant Anaerobe Isolated from Pig Feces.

Jayoung Paek·Lu Bai·Jun-Pil Jang·Yeseul Shin·Hongik Kim·Si Hyun Kim·Jeong Hwan Shin·Joong-Ki K Kook·Young-Hyo H Chang
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Abstract

A Gram-stain-positive, rod-shaped aerotolerant anaerobe was isolated from pig feces and designated as strain YH-dor228T. Phylogenetic analysis using 16 S rRNA gene sequence revealed that the strain was most closely related to Dorea hominis NSJ-36T, with 96.6% similarity. The phylogenomic tree revealed that the strain formed a distinct cluster within the genus Dorea. The average nucleotide identity, average amino acid identity, and digital DNA-DNA hybridization values between the strain and the most closely related strains within genus Dorea ranged from 73.4 to 74.9, 66.4-70.5, and 20.0-22.2%, respectively. The major fatty acids were C14:0, C16:0, and C16:1 ω9c DMA. The cell wall peptidoglycan contained meso-diaminopimelic acid. The genomic DNA G + C content of the strain was 40.7%. The chemotaxonomic, phenotypic, and phylogenetic properties of YH-dor228T (= KCTC 25915T=NBRC 117235T) suggested that it represented a novel species of the genus Dorea, for which the name Dorea chungnamensis sp. nov. is proposed.

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AnimalsPhylogenyFecesBase CompositionRNA, Ribosomal, 16SFatty AcidsSwineDNA, BacterialSequence Analysis, DNABacterial Typing TechniquesNucleic Acid HybridizationPeptidoglycanJournal Article

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Jayoung Paek, Lu Bai, Jun-Pil Jang, Yeseul Shin, Hongik Kim, Si Hyun Kim, Jeong Hwan Shin, Joong-Ki K Kook, Young-Hyo H Chang. 2026-09-09. Description of Dorea chungnamensis sp. nov., an Aerotolerant Anaerobe Isolated from Pig Feces.. https://doi.org/10.1007/s00284-026-05115-6

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