Genomic analysis of four strains of Corynebacterium pseudotuberculosis bv. Equi isolated from horses showing distinct signs of infection
| Autor: | Judy M. Edman, Rommel Thiago Jucá Ramos, Sharon J. Spier, Artur Silva, Vasco Azevedo, Adonney A. O. Veras, Diego Assis das Graças, Adriana Ribeiro Carneiro, Pablo H. C. G. de Sá, Rafael A. Baraúna, Luis C. Guimarães |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Corynebacterium pseudotuberculosis Biovar Ulcerative lymphangitis Horse Genome Short Genome Report Microbiology C. pseudotuberculosis 03 medical and health sciences Genotype Genetics Pathogen Gene Biovar equi Strain (chemistry) biology Human Genome biology.organism_classification Restriction enzyme 030104 developmental biology Infectious Diseases Genomic Biochemistry and Cell Biology Infection |
| Zdroj: | Standards in genomic sciences, vol 12, iss 1 Standards in Genomic Sciences |
| Popis: | The genomes of four strains (MB11, MB14, MB30, and MB66) of the species Corynebacterium pseudotuberculosis biovar equi were sequenced on the Ion Torrent PGM platform, completely assembled, and their gene content and structure were analyzed. The strains were isolated from horses with distinct signs of infection, including ulcerative lymphangitis, external abscesses on the chest, or internal abscesses on the liver, kidneys, and lungs. The average size of the genomes was 2.3 Mbp, with 2169 (Strain MB11) to 2235 (Strain MB14) predicted coding sequences (CDSs). An optical map of the MB11 strain generated using the KpnI restriction enzyme showed that the approach used to assemble the genome was satisfactory, producing good alignment between the sequence observed in vitro and that obtained in silico. In the resulting Neighbor-Joining dendrogram, the C. pseudotuberculosis strains sequenced in this study were clustered into a single clade supported by a high bootstrap value. The structural analysis showed that the genomes of the MB11 and MB14 strains were very similar, while the MB30 and MB66 strains had several inverted regions. The observed genomic characteristics were similar to those described for other strains of the same species, despite the number of inversions found. These genomes will serve as a basis for determining the relationship between the genotype of the pathogen and the type of infection that it causes. |
| Databáze: | OpenAIRE |
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