Thermodiscus eudorianus


Formal styling
Thermodiscus eudorianus St. John, Reysenbach, 2024
Effective publication
St. John, Reysenbach, 2024
SeqCode status
Valid (SeqCode)
Register List (validated)
Cannonical URL


N.L. masc. adj. eudorianus, pertaining to Eudora, referencing to the Nereid water spirit in Greek mythology
Nomenclatural type
NCBI Assembly: GCA_015521085.1
Nomenclatural status
Validly published under the SeqCode


The MAG representing this species was obtained from the Northwest Caldera Wall at the deep-sea Brothers volcano along the Kermadec arc. The MAG is composed of 10 contigs, totaling 1,522,352 bp in length, with a GC content of 54.2%. Based on CheckM2 analysis, the genome is about 95.13% complete and 0.11% contaminated, and it includes a complete 16S rRNA gene, a partial 23S rRNA gene and tRNA genes for all 20 standard amino acids. Inclusion of this MAG in Thermodiscus is supported by 16S rRNA gene sequence identity, and its distinction as a unique species is based on geographical location at a deep-sea volcano, and ANI-based divergence between Thermodiscus MAGs. Based on functional genomic analysis, this species is likely a non-motile, piliated anaerobic heterotroph that degrades protein-rich carbon sources and may reduce sulfur, thiosulfate, polysulfides or selenite. It is predicted to grow best at approximately 90°C. The name proposed for this species refers to an ocean-associated Nereid spirit who is the sister of Calypso, referencing the phylogenetic relationship between the Calypsonella and Thermodiscus.
Archaea » Thermoproteota » Thermoprotei » Desulfurococcales » Desulfurococcaceae » Thermodiscus » Thermodiscus eudorianus


NCBI Assembly:GCA_015521085.1
Metagenome-Assembled Genome (MAG)
Estimated Quality Metrics
  • Completeness: 95.13%
  • Contamination: 0.11%
  • Quality: 94.58
Ribosomal and transfer RNA genes
  • 1 16S rRNA (up to 100.0%)
  • 1 23S rRNA (up to 40.0%)
  • tRNAs for 20 amino acids
Sequencing depth
70.01 ×
Other features
  • G+C Content: 54.2%
  • Coding Density: 90.68%
  • Codon Table: 11
  • N50: 272,099 bp
  • Contigs: 10
  • Largest Contig: 418,039 bp
  • Assembly Length: 1,522,352 bp
  • Ambiguous Assembly Fraction: 0.0%
Submitter comments
Completion and contamination were estimated using CheckM2. RNAs were detected with the Prokaryotic Genome Annotation Pipeline (PGAP). The 16S rRNA gene includes a large (586 bp) intervening sequence (shown in Genbank accession PP060619.1). Completion of the 23S rRNA gene was estimated using the Aeropyrum pernix 23S rRNA gene (NR_103216.2).
Automated checks
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Outside links and data sources
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Local history
Registered by
St. John, Emily 6 months ago
Submitted by
St. John, Emily 2 months ago
Endorsed by
Palmer, Marike 2 months ago
Validated by
Palmer, Marike 13 days ago


Citation Title
St. John, Reysenbach, 2024, Systematic and Applied Microbiology Genomic comparison of deep-sea hydrothermal genera related to Aeropyrum, Thermodiscus and Caldisphaera, and proposed emended description of the family Acidilobaceae
Effective publication

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