Consulta: subjectFacets:"Horizontal gene transfer"
Registros recuperados: 3
Data/hora: 27/07/2024 03:11:24

Comparative genomics of pathogenic lineages of Vibrio nigripulchritudo identifies virulence-associated traits
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Goudenege, David; Labreuche, Yannick; Krin, Evelyne; Ansquer, Dominique; Mangenot, Sophie; Calteau, Alexandra; Medigue, Claudine; Mazel, Didier; Polz, Martin F.; Le Roux, Frederique.
Vibrio nigripulchritudo is an emerging pathogen of farmed shrimp in New Caledonia and other regions in the Indo-Pacific. The molecular determinants of V. nigripulchritudo pathogenicity are unknown; however, molecular epidemiological studies have suggested that pathogenicity is linked to particular lineages. Here, we performed high-throughput sequencing-based comparative genome analysis of 16 V. nigripulchritudo strains to explore the genomic diversity and evolutionary history of pathogen-containing lineages and to identify pathogen-specific genetic elements. Our phylogenetic analysis revealed three pathogen-containing V. nigripulchritudo clades, including two clades previously identified from New Caledonia and one novel clade comprising putatively...
Tipo: Text
Palavras-chave: Horizontal gene transfer; Nigritoxin; Phylogeny; Shrimp; Virulence; Vibrio.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00160/27117/28369.pdf

Insertion sequences as variability generators in the Mycoplasma hyopneumoniae and M. synoviae genomes
Provedor de dados: Genetics and Molecular Biology
Autores: Loreto,Elgion Lúcio Silva; Ortiz,Mauro Freitas; Porto,Jorge Ivan Rebelo.
We have analyzed the sequenced genomes of three strains of Mycoplasma hyopneumoniae and one strain of M. synoviae, and have found three and two different transposable element families, respectively in each species. In M. hyopneumoniae, the Insertion Sequences of the IS4 family is represented by ISMHp1, a putatively active element. The IS3 family is represented by several degenerated sequences. A third element called tMH was found, which shows some characteristics reminiscent of retrotransposons. In M. synoviae, three different possibly active IS4 elements are present (ISMHp1-like; ISMs1 and IS1634-like elements). The IS30 family is represented by the degenerated IS1630-like element. The IS1634-like element is shown to be involved in chromosomal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insertion sequences; IS; Mollicutes; Horizontal gene transfer; Mycoplasma.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000200017

Underrated Staphylococcus species and their role in antimicrobial resistance spreading
Provedor de dados: Genetics and Molecular Biology
Autores: Rossi,Ciro César; Pereira,Monalessa Fábia; Giambiagi-deMarval,Marcia.
Abstract The increasing threat of antimicrobial resistance has shed light on the interconnection between humans, animals, the environment, and their roles in the exchange and spreading of resistance genes. In this review, we present evidences that show that Staphylococcus species, usually referred to as harmless or opportunistic pathogens, represent a threat to human and animal health for acting as reservoirs of antimicrobial resistance genes. The capacity of genetic exchange between isolates of different sources and species of the Staphylococcus genus is discussed with emphasis on mobile genetic elements, the contribution of biofilm formation, and evidences obtained either experimentally or through genome analyses. We also discuss the involvement of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Horizontal gene transfer; Antimicrobial resistance; Coagulase negative staphylococcus; Biofilm; CRISPR; One Health.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000300303