title: Comparative Genomic Analysis of Asian Haemorrhagic Septicaemia-Associated Strains of Pasteurella multocida Identifies More than 90 Haemorrhagic Septicaemia-Specific Genes.
abstract: Pasteurella multocida is the primary causative agent of a range of economically important diseases in animals, including haemorrhagic septicaemia (HS), a rapidly fatal disease of ungulates. There is limited information available on the diversity of P. multocida strains that cause HS. Therefore, we determined draft genome sequences of ten disease-causing isolates and two vaccine strains and compared these genomes using a range of bioinformatic analyses. The draft genomes of the 12 HS strains were between 2,298,035 and 2,410,300 bp in length. Comparison of these genomes with the North American HS strain, M1404, and other available P. multocida genomes (Pm70, 3480, 36950 and HN06) identified a core set of 1,824 genes. A set of 96 genes was present in all HS isolates and vaccine strains examined in this study, but absent from Pm70, 3480, 36950 and HN06. Moreover, 59 genes were shared only by the Asian B:2 strains. In two Pakistani isolates, genes with high similarity to genes in the integrative and conjugative element, ICEPmu1 from strain 36950 were identified along with a range of other antimicrobial resistance genes. Phylogenetic analysis indicated that the HS strains formed clades based on their country of isolation. Future analysis of the 96 genes unique to the HS isolates will aid the identification of HS-specific virulence attributes and facilitate the development of disease-specific diagnostic tests.
authors.affiliation: School of Veterinary and Life Sciences, Murdoch University, South Street, Perth, Western Australia, Australia.
authors.forename: Ahmed M
authors.initials: AM
authors.lastname: Moustafa
authors.affiliation: Victorian Bioinformatics Consortium, Monash University, Wellington Road, Clayton, Melbourne, Victoria, Australia; Victorian Life Sciences Computation Initiative, Grattan Street, Carlton, Melbourne, Victoria, Australia.
authors.forename: Torsten
authors.initials: T
authors.lastname: Seemann
authors.affiliation: Victorian Bioinformatics Consortium, Monash University, Wellington Road, Clayton, Melbourne, Victoria, Australia; Victorian Life Sciences Computation Initiative, Grattan Street, Carlton, Melbourne, Victoria, Australia.
authors.forename: Simon
authors.initials: S
authors.lastname: Gladman
authors.affiliation: Australian Research Council Centre of Excellence in Structural and Functional Microbial Genomics, Monash University, Wellington Road, Clayton, Melbourne, Victoria, Australia; Department of Microbiology, Monash University, Wellington Road, Clayton, Melbourne, Victoria, Australia.
authors.forename: Ben
authors.initials: B
authors.lastname: Adler
authors.affiliation: Australian Research Council Centre of Excellence in Structural and Functional Microbial Genomics, Monash University, Wellington Road, Clayton, Melbourne, Victoria, Australia; Department of Microbiology, Monash University, Wellington Road, Clayton, Melbourne, Victoria, Australia.
authors.forename: Marina
authors.initials: M
authors.lastname: Harper
authors.affiliation: Australian Research Council Centre of Excellence in Structural and Functional Microbial Genomics, Monash University, Wellington Road, Clayton, Melbourne, Victoria, Australia; Department of Microbiology, Monash University, Wellington Road, Clayton, Melbourne, Victoria, Australia.
authors.forename: John D
authors.initials: JD
authors.lastname: Boyce
authors.affiliation: School of Veterinary and Life Sciences, Murdoch University, South Street, Perth, Western Australia, Australia.
authors.forename: Mark D
authors.initials: MD
authors.lastname: Bennett
mesh_terms: D000818:Animals; D001208:Asia; D001426:Bacterial Proteins / Q000235:genetics; D001483:Base Sequence; D002417:Cattle; D002418:Cattle Diseases / Q000235:genetics* / Q000382:microbiology / Q000473:pathology; D055028:Comparative Genomic Hybridization; D004269:DNA, Bacterial / Q000032:analysis; D024881:Drug Resistance, Bacterial / Q000235:genetics; D016680:Genome, Bacterial; D006483:Hemorrhagic Septicemia / Q000235:genetics* / Q000382:microbiology / Q000473:pathology; D059014:High-Throughput Nucleotide Sequencing; D008070:Lipopolysaccharides / Q000096:biosynthesis; D008969:Molecular Sequence Data; D010154:Pakistan; D016979:Pasteurella multocida / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification; D010802:Phylogeny; D020641:Polymorphism, Single Nucleotide; D017422:Sequence Analysis, DNA
chemical_list: D001426:Bacterial Proteins; D004269:DNA, Bacterial; D008070:Lipopolysaccharides