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	Provedor de dados Nature Precedings (4) Autor Hoi Shan Kwan (4) Man Kit Cheung (4) Wenyan Nong (4) Lei LI (2) Lei Li (2) Chi Keung Cheng (1) Chun Hang Au (1) Man Chun Wong (1) Qianli Huang (1) Mais... Palavra-chave Genetics & Genomics (4) Microbiology (4) Bioinformatics (3) Evolutionary Biology (2) Biotechnology (1) Tipo do documento Manuscript (4) Ano 2011 (4) País United Kingdom (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última 2011 German Escherichia coli O104:H4 outbreak: Alignment-free whole-genome phylogeny by feature frequency profiles Nature Precedings Man Kit Cheung; Lei Li; Wenyan Nong; Hoi Shan Kwan. Accuracy of SNP-based whole-genome phylogeny reconstruction relies heavily on quality of sequence alignment which is particularly hindered by poorly assembled genomes. Alignment-free methods might provide additional insights. Here, we constructed a whole-genome phylogeny of 10 isolates from the current German E. coli outbreak against 30 existing E. coli genomes as well as that of a historical EHEC isolate using the alignment-free feature frequency profile method. Our results revealed a high similarity among E. coli isolates from the current outbreak and the historical EHEC being the most closely related isolate sequenced thus far. Tipo: Manuscript Palavras-chave: Genetics & Genomics; Microbiology; Bioinformatics; Evolutionary Biology. Ano: 2011 URL: http://precedings.nature.com/documents/6109/version/2 2011 German Escherichia coli outbreak: Alignment-free whole-genome phylogeny by feature frequency profiles Nature Precedings Man Kit Cheung; Lei LI; Wenyan Nong; Hoi Shan Kwan. Accuracy of SNP-based whole-genome phylogeny reconstruction relies heavily on quality of sequence alignment which is particularly hindered by poorly assembled genomes. Alignment-free methods might provide additional insights. Here, we constructed a whole-genome phylogeny of 9 E.coli isolates from the 2011 German outbreak against existing E. coli genomes using the alignment-free feature frequency profile method. In addition, we looked for gene elements that distinguish the outbreak group from the other E. coli strains and possibly accounted for the emergence of the outbreak isolates using the distinguishing feature analysis. Tipo: Manuscript Palavras-chave: Genetics & Genomics; Microbiology; Bioinformatics; Evolutionary Biology. Ano: 2011 URL: http://precedings.nature.com/documents/6109/version/1 2011 German Escherichia coli outbreak: Prophage analysis of close-assembled TY2482 against 55989 using PHAST Nature Precedings Man Kit Cheung; Lei LI; Wenyan Nong; Hoi Shan Kwan. Using the Hiseq data of the German E. coli outbreak isolate TY2482, preliminary prophage analyses have been performed by some researchers previously. With the closed assembly of the same isolate being available, another round of analysis might help in resolving questions that remain unclear due to the incompleteness of the dataset. Tipo: Manuscript Palavras-chave: Genetics & Genomics; Microbiology; Bioinformatics. Ano: 2011 URL: http://precedings.nature.com/documents/6110/version/1 A Proposal of Genomic Analytical Workflow in a Bacterial Pathogen Outbreak Investigation Nature Precedings Hoi Shan Kwan; Chun Hang Au; Chi Keung Cheng; Man Kit Cheung; Qianli Huang; Lei Li; Wenyan Nong; Man Chun Wong. The German Escherichia coli O104:H4 outbreak causing Hemolytic Uremic Syndrome (HUS) started in early May 2011. Conventional typing methods including serotyping, multi-locus sequence typing (MLST) and pulse-field gel electrophoresis (PFGE) seemed to yield only limited information about the causative agent. The advantages of the Genome sequencing approach are apparent compared to conventional methods. Genome sequencing and analyses with an appropriate workflow would be the new paradigm in bacterial outbreak investigation. Tipo: Manuscript Palavras-chave: Biotechnology; Genetics & Genomics; Microbiology. Ano: 2011 URL: http://precedings.nature.com/documents/6663/version/1 Registros recuperados: 4 Primeira ... 1 ... Última

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