Name: Rhodococcoides Val-Calvo and Vázquez-Boland 2024

Category: Genus

Proposed as: gen. nov.

Etymology: Rho.do.coc.co.i’des. N.L. masc. n. Rhodococcus, a bacterial genus; L. adj. suff. -oides, resembling; N.L. neut. n. Rhodococcoides, a genus resembling Rhodococcus

Gender, pronunciation (Latin): neuter (stem: Rhodococcoid-), r^ho-do-kok-ko-I-des

Type species: Rhodococcoides fascians (Tilford 1936) Val-Calvo and Vázquez-Boland 2024

Effective publication: Val-Calvo J, Vazquez-Boland JA. Mycobacteriales taxonomy using network analysis-aided, context-uniform phylogenomic approach for non-subjective genus demarcation. mBio 2023; 14:e0220723. 🇬🇧

IJSEM list: Oren A, Göker M. Validation list no. 216. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2024; 74:6229.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Rhodococcus Zopf 1891 (Approved Lists 1980)

• Synonyms:

  • Name	Kind
    "Prescottella" Jones et al. 2013	heterotypic synonym, not validly published
    Prescottella Sangal et al. 2022	heterotypic synonym, validly published under the ICNP
    Rhodococcus Zopf 1891 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP, conserved name
    "Prescottia" Jones et al. 2013	heterotypic synonym, not validly published

• Notes:
  • 🚂 For the type species of this genus another name is in use, which is affiliated with the genus Rhodococcus Zopf 1891 (Approved Lists 1980). Publication: Goodfellow M. Reclassification of Corynebacterium fascians (Tilford) Dowson in the genus Rhodococcus, as Rhodococcus fascians comb. nov. S yst. Appl. Microbiol. 1984; 5:225-229. 🇬🇧
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Val-Calvo et al. (2025). Editors in search of reviewers are advised to consider additional criteria such as whether a taxon is covered by one of the ICSP subcommittees.
  • ❗ Rhodococcoides is the correct name instead if this genus is regarded as a separate genus (i.e., if its nomenclatural type is not assigned to another genus whose name is validly published, legitimate and not rejected and has priority).
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 6; JCM: 6; NBRC: 5; NCIMB: 3; LMG: 3; IFO: 2; CCTCC: 2; ATCC: 2; NRRL: 2; CIP: 2.

Subdivision:

Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 7
Total number of child taxa: 7

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Rhodococcoides corynebacterioides (Serrano et al. 1972) Val-Calvo and Vázquez-Boland 2024	validly published under the ICNP	synonym
    Rhodococcoides fascians (Tilford 1936) Val-Calvo and Vázquez-Boland 2024	validly published under the ICNP	synonym
    Rhodococcoides kroppenstedtii (Mayilraj et al. 2006) Val-Calvo and Vázquez-Boland 2024	validly published under the ICNP	synonym
    Rhodococcoides kyotonense (Li et al. 2007) Val-Calvo and Vázquez-Boland 2024	validly published under the ICNP	synonym
    Rhodococcoides navarretei (Carrasco et al. 2024) Val-Calvo et al. 2025	validly published under the ICNP	synonym
    Rhodococcoides trifolii (Kämpfer et al. 2013) Val-Calvo and Vázquez-Boland 2024	validly published under the ICNP	synonym
    Rhodococcoides yunnanense (Zhang et al. 2005) Val-Calvo and Vázquez-Boland 2024	validly published under the ICNP	synonym

Parent taxon: Nocardiaceae Castellani and Chalmers 1919 (Approved Lists 1980)

Assigned by: Val-Calvo J, Vazquez-Boland JA. Mycobacteriales taxonomy using network analysis-aided, context-uniform phylogenomic approach for non-subjective genus demarcation. mBio 2023; 14:e0220723. 🇬🇧

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Record number: 46664