Name: Shigella Castellani and Chalmers 1919 (Approved Lists 1980)

Category: Genus

Proposed as: gen. nov.

Etymology: N.L. fem. dim. n. Shigella, named after K. Shiga, the Japanese bacteriologist who first discovered the dysentery bacillus

Gender: feminine

Type species: Shigella dysenteriae (Shiga 1897) Castellani and Chalmers 1919 (Approved Lists 1980)

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Original publication: Castellani A, Chalmers AJ. Manual of Tropical Medicine, 3rd ed. Williams Wood and Co., New York, 1919.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published

Taxonomic status: correct name

• Notes:
  • Breed et al. (1957) assigned this genus to the tribe Salmonelleae Kalz 1957 (Approved Lists 1980). Publication: Parker CD. Genus V. Thiobacillus Beijerinck 1904. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 83-88.
  • The type species of this genus has alternatively been placed in the genus Bacillus Cohn 1872 (Approved Lists 1980). Publication: Shiga K. Sekiri Byogen Kenkyu Hokoku Dai-Ichi (First report on etiologic research on dysentery). Saikingaku-Zasshi 1897; 25:790-810.
  • The four species of Shigella and Escherichia coli are a single species on the basis of DNA relatedness. Moreover, these taxa are often difficult to separate biochemically, and pathogenicity does not provide definitive separation (some Escherichia coli strains can cause a dysentery-like diarrhea). However, they remain separate species to avoid confusion in medical microbiology. Publication: Brenner DJ. Family I. Enterobacteriaceae Rahn 1937, Nom. fam. cons. Opin. 15, Jud. Com. 1958, 73; Ewing, Farmer, and Brenner 1980, 674; Judicial Commission 1981, 104. In: Krieg NR, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 1, The Williams & Wilkins Co, Baltimore, 1984, p. 408-420.

Subdivision:

Number of child taxa with a validly published and correct name: 4
Number of child taxa with a validly published name, including synonyms: 4
Total number of child taxa: 4

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Shigella boydii Ewing 1949 (Approved Lists 1980)	validly published, conserved name	correct name
    Shigella dysenteriae (Shiga 1897) Castellani and Chalmers 1919 (Approved Lists 1980)	validly published	correct name
    Shigella flexneri Castellani and Chalmers 1919 (Approved Lists 1980)	validly published, conserved name	correct name
    Shigella sonnei (Levine 1920) Weldin 1927 (Approved Lists 1980)	validly published, conserved name	correct name

Parent taxon: Enterobacteriaceae Rahn 1937 (Approved Lists 1980)

Assigned by: Ewing WH, Farmer Iii JJ, Brenner DJ. Proposal of Enterobacteriaceae fam. nov., nom. rev. to replace Enterobacteriaceae Rahn 1937, nom. fam. cons. (Opin. 15, Jud. Comm. 1958), which lost standing in nomenclature on 1 January 1980. Int. J. Syst. Bacteriol. 1980; 30:674-675.

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