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  1. Fulltext Population genomics reveals additive and replacing horizontal gene transfers in the emerging pathogen Dickeya solani
    Khayi S, Blin P, Pédron J, Chong TM, Chan KG, Moumni M, et al.
    BMC Genomics, 2015;16:788.
    PMID: 26467299 DOI: 10.1186/s12864-015-1997-z
    Dickeya solani is an emerging pathogen that causes soft rot and blackleg diseases in several crops including Solanum tuberosum, but little is known about its genomic diversity and evolution.
    Matched MeSH terms: Gene Transfer, Horizontal/genetics*
  2. Fulltext In vitro transfer of methicillin resistance determinants mecA from methicillin resistant Staphylococcus aureus (MRSA) to methicillin susceptible Staphylococcus aureus (MSSA)
    Bitrus AA, Zunita Z, Bejo SK, Othman S, Nadzir NA
    BMC Microbiol, 2017 04 04;17(1):83.
    PMID: 28376716 DOI: 10.1186/s12866-017-0994-6
    BACKGROUND: Staphylococcus aureus more than any other human pathogen is a better model for the study of the adaptive evolution of bacterial resistance to antibiotics, as it has demonstrated a remarkable ability in its response to new antibiotics. This study was designed to investigate the in vitro transfer of mecA gene from methicillin resistant S. aureus to methicillin susceptible S. aureus.

    RESULT: The recipient transconjugants were resistant to erythromycin, cefpodoxime and were mecA positive. PCR amplification of mecA after mix culture plating on Luria Bertani agar containing 100 μg/mL showed that 75% of the donor and 58.3% of the recipient transconjugants were mecA positive. Additionally, 61.5% of both the donor cells and recipient transconjugants were mecA positive, while 46.2% and 41.75% of both donor and recipient transconjugants were mecA positive on LB agar containing 50 μg/mL and 30 μg/mL respectively.

    CONCLUSION: In this study, the direction of transfer of phenotypic resistance as well as mecA was observed to have occurred from the donor to the recipient strains. This study affirmed the importance of horizontal transfer events in the dissemination of antibiotics resistance among different strains of MRSA.

    Matched MeSH terms: Gene Transfer, Horizontal/genetics
  3. Fulltext Comparative genomic analysis of six bacteria belonging to the genus Novosphingobium: insights into marine adaptation, cell-cell signaling and bioremediation
    Gan HM, Hudson AO, Rahman AY, Chan KG, Savka MA
    BMC Genomics, 2013;14:431.
    PMID: 23809012 DOI: 10.1186/1471-2164-14-431
    Bacteria belonging to the genus Novosphingobium are known to be metabolically versatile and occupy different ecological niches. In the absence of genomic data and/or analysis, knowledge of the bacteria that belong to this genus is currently limited to biochemical characteristics. In this study, we analyzed the whole genome sequencing data of six bacteria in the Novosphingobium genus and provide evidence to show the presence of genes that are associated with salt tolerance, cell-cell signaling and aromatic compound biodegradation phenotypes. Additionally, we show the taxonomic relationship between the sequenced bacteria based on phylogenomic analysis, average amino acid identity (AAI) and genomic signatures.
    Matched MeSH terms: Gene Transfer, Horizontal/genetics
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