Phylogenetic Relationship of Serovar C-1 Isolates of Avibacterium paragallinarum

The bacterium Avibacterium paragallinarum is the etiologic agent of infectious coryza of chickens. Serovar C-1 has emerged in infectious coryza outbreaks in layer hens of Ecuador and Mexico. In the current study, genotyping and phylogenetic analyses of five Ecuadorian and 10 Mexican isolates of Av....

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Bibliographic Details
Published in:Avian diseases 2014-03, Vol.58 (1), p.143-146
Main Authors: García-Sánchez, A, Morales-Erasto, V, Talavera-Rojas, M, Robles-González, F, Allen, M. S, Blackall, P. J, Soriano-Vargas, E
Format: Article
Language:English
Subjects:
Animals
Antigens
Avibacterium paragallinarum
Bacterial Proteins - genetics
Bacterial Proteins - metabolism
Blasts
Chickens
Computer software
Ecuador
Etiology
Genes
Genotype
Genotypes
Haemophilus Infections - microbiology
Haemophilus paragallinarum - genetics
Haemophilus paragallinarum - metabolism
infectious coryza
Mexico
Molecular Sequence Data
Phylogenetics
Phylogeny
Polymerase Chain Reaction - veterinary
poultry
Poultry Diseases - microbiology
Research Note
Research Notes
Ribosomal RNA
RNA, Ribosomal, 16S - genetics
RNA, Ribosomal, 16S - metabolism
rRNA genes
Sequence Analysis, DNA - veterinary
serovar C-1
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Summary:The bacterium Avibacterium paragallinarum is the etiologic agent of infectious coryza of chickens. Serovar C-1 has emerged in infectious coryza outbreaks in layer hens of Ecuador and Mexico. In the current study, genotyping and phylogenetic analyses of five Ecuadorian and 10 Mexican isolates of Av. paragallinarum serovar C-1 were performed. All 15 isolates share a unique enterobacterial repetitive intergenic consensus-based-PCR fingerprint and have identical 16S ribosomal RNA and hemagglutinin antigen gene sequences. Results indicate that Ecuadorian and Mexican isolates of serovar C-1 of Av. paragallinarum have a clonal relationship. Nota de Investigación—Relación filogenética de aislamientos de Avibacterium paragallinarum serovar C-1. La bacteria Avibacterium paragallinarum es el agente etiológico de la coriza infecciosa de los pollos. El serovar C-1 se ha presentado en brotes de coriza infecciosa en gallinas ponedoras de Ecuador y de México. En el presente estudio, se llevó a cabo la genotipificación y análisis filogenéticos de cinco aislamientos ecuatorianos y de diez aislamientos mexicanos de Av. paragallinarum serovar C-1. Los 15 aislamientos compartieron una huella genética intergénica, consensuada y repetitiva única de enterobacterias, que fue detectada por PCR y también mostraron secuencias idénticas de los genes ribosomal 16S y del antígeno de la hemaglutinina. Los resultados indican que los aislamientos ecuatorianos y mexicanos de serovar C-1 de Av. paragallinarum tienen una relación clonal.
ISSN:0005-2086
1938-4351
DOI:10.1637/10572-051413-ResNote.1