Prediction of Pasteurella multocida serotypes based on whole genomic sequences

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The serotypes of Pasteurella multocida were predicted based on whole genomic sequences (WGS) with specific genes of the capsular and liposaccharide (LPS) outer core polysaccharide regions as targets. A total of 56 strains were whole genomic sequenced and in addition all assembled genomes from NCBI were included for comparison. BIGSdb (Bacterial Isolate Genome Sequence Database) was installed on a Linux server and targets for capsular types A, B, D, E and F were defined as gene sequences of hyaD, bcbD, dcbF, ecbJ and fcbD, respectively and targets for LPS groups 1, 2, 3, 4, 5, 6, 7 and 8 were defined as gene sequences of pcgB, nctA, gatF, latB, rmlA, nctB, ppgB and natG, respectively. The serotypes of P. multocida were predicted from WGS by designating the capsular type and LPS group as well as subtype alleles to isolates. Comparisons between WGS predictions of capsular types and classical phenotypic typing showed correspondence in 87 % of cases whereas comparisons of WGS predictions of LPS groups to phenotypic typing corresponded for 82 % of the strains. In total 93 % and 94 % of the strains available with WGS could be capsular and LPS group typed, respectively. The server is free to access from https://ivsmlst.sund.ku.dk.

OriginalsprogEngelsk
Artikelnummer109492
TidsskriftVeterinary Microbiology
Vol/bind271
ISSN0378-1135
DOI
StatusUdgivet - 2022

Bibliografisk note

Funding Information:
Tim Frederik Olsen, Department of Public Health and Kamaran Rahim, SUND-IT University of Copenhagen are thanked for help with the setup and maintenance of BIGSdb. Keith Jolley, Department of Zoology, University of Oxford is acknowledged for advises with the BIGSdb. Kirsty Townsend and Ahmed Magdi Moustafa are thanked for background information of some bovine strains. The Danish Veterinary Consortium and AniCon funded the project. The pioneering work of the Australian research groups is acknowledged with respect to annotation of the capsular and core LPS genes including identification of marker genes for the serotypes.

Publisher Copyright:
© 2022 The Authors

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