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https://www.readbyqxmd.com/read/28230522/multinational-outbreak-of-travel-related-salmonella-chester-infections-in-europe-summers-2014-and-2015
#1
Laure Fonteneau, Nathalie Jourdan Da Silva, Laetitia Fabre, Philip Ashton, Mia Torpdahl, Luise Müller, Brahim Bouchrif, Abdellah El Boulani, Eleni Valkanou, Wesley Mattheus, Ingrid Friesema, Silvia Herrera Leon, Carmen Varela Martínez, Joël Mossong, Ettore Severi, Kathie Grant, François-Xavier Weill, Céline M Gossner, Sophie Bertrand, Tim Dallman, Simon Le Hello
Between 2014 and 2015, the European Centre for Disease Prevention and Control was informed of an increase in numbers of Salmonella enterica serotype Chester cases with travel to Morocco occurring in six European countries. Epidemiological and microbiological investigations were conducted. In addition to gathering information on the characteristics of cases from the different countries in 2014, the epidemiological investigation comprised a matched case-case study involving French patients with salmonellosis who travelled to Morocco that year...
February 16, 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/28230168/phylogenetic-characterizations-of-highly-mutated-ev-b106-recombinants-showing-extensive-genetic-exchanges-with-other-ev-b-in-xinjiang-china
#2
Yang Song, Yong Zhang, Qin Fan, Hui Cui, Dongmei Yan, Shuangli Zhu, Haishu Tang, Qiang Sun, Dongyan Wang, Wenbo Xu
Human enterovirus B106 (EV-B106) is a new member of the enterovirus B species. To date, only three nucleotide sequences of EV-B106 have been published, and only one full-length genome sequence (the Yunnan strain 148/YN/CHN/12) is available in the GenBank database. In this study, we conducted phylogenetic characterisation of four EV-B106 strains isolated in Xinjiang, China. Pairwise comparisons of the nucleotide sequences and the deduced amino acid sequences revealed that the four Xinjiang EV-B106 strains had only 80...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28230102/identification-of-a-new-virulent-clade-in-enterohemorrhagic-escherichia-coli-o26-h11-h-sequence-type-29
#3
Nozomi Ishijima, Ken-Ichi Lee, Tomomi Kuwahara, Haruyuki Nakayama-Imaohji, Saori Yoneda, Atsushi Iguchi, Yoshitoshi Ogura, Tetsuya Hayashi, Makoto Ohnishi, Sunao Iyoda
Enterohemorrhagic Escherichia coli (EHEC) O26 infections cause severe human diseases such as hemolytic uremic syndrome and encephalopathy, and is the predominant serogroup among non-O157 EHEC in many countries. Shiga toxin (Stx), which consists of two distinct types (Stx1 and Stx2), plays a central role in EHEC pathogenesis. The major stx gene type in EHEC O26 strains is stx1, although isolates with only stx2 have emerged in Japan since 2012 and have been reported in Europe. In this study, we selected 27 EHEC O26 strains isolated in Japan and identified a distinct genetic clade within sequence type (ST) 29, designated ST29C1, that carried only stx2 and had the plasmid gene profile ehxA+/katP-/espP+/etpD-...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28229564/diversification-of-hox-gene-clusters-in-osteoglossomorph-fish-in-comparison-to-other-teleosts-and-the-spotted-gar-outgroup
#4
Kyle J Martin, Peter W H Holland
An ancient genome duplication (TGD or 3R) occurred in teleost fish after divergence from the lineage leading to gar. This genome duplication is shared by the three extant teleost lineages: Osteoglossomorpha (bony-tongues), Elopomorpha (eels and tarpons), and Clupeocephala (a large clade including salmon, carp, medaka, zebrafish, cichlids, pufferfish, stickleback, and ∼26,000 other species). After TGD, different clupeocephalan species retained different gene duplicates; this is seen clearly in Hox gene clusters but extends to all genes...
February 23, 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28229558/microbial-diversity-of-a-full-scale-uasb-reactor-applied-to-poultry-slaughterhouse-wastewater-treatment-integration-of-16s-rrna-gene-amplicon-and-shotgun-metagenomic-sequencing
#5
Tiago Palladino Delforno, Gileno Vieira Lacerda Júnior, Melline F Noronha, Isabel K Sakamoto, Maria Bernadete A Varesche, Valéria M Oliveira
The 16S rRNA gene amplicon and whole-genome shotgun metagenomic (WGSM) sequencing approaches were used to investigate wide-spectrum profiles of microbial composition and metabolic diversity from a full-scale UASB reactor applied to poultry slaughterhouse wastewater treatment. The data were generated by using MiSeq 2 × 250 bp and HiSeq 2 × 150 bp Illumina sequencing platforms for 16S amplicon and WGSM sequencing, respectively. Each approach revealed a distinct microbial community profile, with Pseudomonas and Psychrobacter as predominant genus for the WGSM dataset and Clostridium and Methanosaeta for the 16S rRNA gene amplicon dataset...
February 23, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28229249/adcy5-related-dyskinesia-presenting-as-familial-myoclonus-dystonia
#6
Andrew G L Douglas, Gaia Andreoletti, Kevin Talbot, Simon R Hammans, Jaspal Singh, Andrea Whitney, Sarah Ennis, Nicola C Foulds
We describe a family with an autosomal dominant familial dyskinesia resembling myoclonus-dystonia associated with a novel missense mutation in ADCY5, found through whole-exome sequencing. A tiered analytical approach was used to analyse whole-exome sequencing data from an affected grandmother-granddaughter pair. Whole-exome sequencing identified 18,000 shared variants, of which 46 were non-synonymous changes not present in a local cohort of control exomes (n = 422). Further filtering based on predicted splicing effect, minor allele frequency in the 1000 Genomes Project and on phylogenetic conservation yielded 13 candidate variants, of which the heterozygous missense mutation c...
February 22, 2017: Neurogenetics
https://www.readbyqxmd.com/read/28229046/genome-sequence-of-three-psychrobacter-sp-strains-with-potential-applications-in-bioremediation
#7
Aide Lasa, Jesús L Romalde
To date, the genus Psychrobacter consists of 37 recognized species isolated from different sources, however they are more frequently found in cold and other non-polar environments of low water activity. Some strains belonging to the genus have shown different enzymatic activities with potential applications in bioremediation or food industry. In the present study, the whole genome sequences of three Psychrobacter-like strains (C 20.9, Cmf 22.2 and Rd 27.2) isolated from reared clams in Galicia (Spain) are described...
June 2017: Genomics Data
https://www.readbyqxmd.com/read/28228490/short-read-whole-genome-sequencing-for-laboratory-based-surveillance-of-bordetella-pertussis
#8
Alex Marchand-Austin, Raymond S W Tsang, Jennifer L Guthrie, Jennifer H Ma, Gillian Lim, Natasha S Crowcroft, Shelley L Deeks, David J Farrell, Frances B Jamieson
Bordetella pertussis (BP) is a Gram-negative bacterium that causes respiratory infections in humans. Ongoing molecular surveillance of BP acellular vaccine (aP) antigens is critical for understanding the interaction between evolutionary pressures, disease pathogenesis, and vaccine effectiveness. Methods currently used to characterize aP components are relatively labour intensive and low throughput. To address this challenge, we sought to derive aP antigen genotypes from minimally processed short-read whole genome sequencing data generated from 40 clinical BP isolates and analyzed using the SRST2 bioinformatic package...
February 22, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28228245/legionellosis-acquired-through-a-dental-unit-a-case-study
#9
C Schönning, C Jernberg, D Klingenberg, S Andersson, A Pääjärvi, E Alm, E Tano, B Lytsy
In 2012, an elderly immunocompromised man died from legionellosis at a hospital in Uppsala, Sweden. The patient had visited a dental ward at the hospital during the incubation period. Legionella spp. at a concentration of 2000 colony-forming units/L were isolated from the cupfiller outlet providing water for oral rinsing. Isolates from the patient and the dental unit were Legionella pneumophila serogroup 1, subgroup Knoxville and ST9. Pulsed-field gel electrophoresis and whole-genome sequencing strongly suggested that the isolates were of common origin...
January 20, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28228131/whole-genome-sequencing-of-one-complex-pedigree-illustrates-challenges-with-genomic-medicine
#10
Han Fang, Yiyang Wu, Hui Yang, Margaret Yoon, Laura T Jiménez-Barrón, David Mittelman, Reid Robison, Kai Wang, Gholson J Lyon
BACKGROUND: Human Phenotype Ontology (HPO) has risen as a useful tool for precision medicine by providing a standardized vocabulary of phenotypic abnormalities to describe presentations of human pathologies; however, there have been relatively few reports combining whole genome sequencing (WGS) and HPO, especially in the context of structural variants. METHODS: We illustrate an integrative analysis of WGS and HPO using an extended pedigree, which involves Prader-Willi Syndrome (PWS), hereditary hemochromatosis (HH), and dysautonomia-like symptoms...
February 23, 2017: BMC Medical Genomics
https://www.readbyqxmd.com/read/28225804/an-outbreak-of-acute-respiratory-disease-caused-by-a-virus-associated-rna-ii-gene-mutation-strain-of-human-adenovirus-7-in-china-2015
#11
Xiaoxia Yang, Qiongshu Wang, Beibei Liang, Fuli Wu, Hao Li, Hongbo Liu, Chunyu Sheng, Qiuxia Ma, Chaojie Yang, Jing Xie, Peng Li, Leili Jia, Ligui Wang, Xinying Du, Shaofu Qiu, Hongbin Song
Human adenovirus 7 (HAdV-7) strains are a major cause of acute respiratory disease (ARD) among adults and children, associated with fatal pneumonia. An ARD outbreak caused by HAdV-7 that involved 739 college students was reported in this article. To better understand the underlying cause of this large-scale epidemic, virus strains were isolated from infected patients and sequence variations of the whole genome sequence were detected. Evolutionary trees and alignment results indicated that the major capsid protein genes hexon and fibre were strongly conserved among serotype 7 strains in China at that time...
2017: PloS One
https://www.readbyqxmd.com/read/28225773/whole-genome-duplication-and-molecular-evolution-in-cornus-l-cornaceae-insights-from-transcriptome-sequences
#12
Yan Yu, Qiuyun Xiang, Paul S Manos, Douglas E Soltis, Pamela S Soltis, Bao-Hua Song, Shifeng Cheng, Xin Liu, Gane Wong
The pattern and rate of genome evolution have profound consequences in organismal evolution. Whole-genome duplication (WGD), or polyploidy, has been recognized as an important evolutionary mechanism of plant diversification. However, in non-model plants the molecular signals of genome duplications have remained largely unexplored. High-throughput transcriptome data from next-generation sequencing have set the stage for novel investigations of genome evolution using new bioinformatic and methodological tools in a phylogenetic framework...
2017: PloS One
https://www.readbyqxmd.com/read/28224251/complete-genome-sequence-of-sunflower-ring-blotch-virus-a-new-potyvirus-infecting-sunflower-in-argentina
#13
Dariel Cabrera Mederos, Nicolás Bejerman, Verónica Trucco, Soledad de Breuil, Sergio Lenardon, Fabián Giolitti
The complete genome sequence of sunflower ring blotch virus (SuRBV), a previously undescribed potyvirus infecting sunflower in Argentina, is reported. The SuRBV genome comprises 9555 nucleotides (nt) and encodes a polyprotein of 3061 amino acids, flanked by 5' and 3' untranslated regions of 117 and 255 nt, respectively. Phylogenetic analysis showed that SuRBV belongs to the potato virus Y (PVY) subgroup and clusters together with sunflower chlorotic mottle virus and bidens mosaic virus. Percentage nucleotide identity between the whole genomes of SuRBV and BiMV was 70...
February 21, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28224059/identification-of-downy-mildew-resistance-gene-candidates-by-positional-cloning-in-maize-zea-mays-subsp-mays-poaceae
#14
Jae Yoon Kim, Jun-Cheol Moon, Hyo Chul Kim, Seungho Shin, Kitae Song, Kyung-Hee Kim, Byung-Moo Lee
PREMISE OF THE STUDY: Positional cloning in combination with phenotyping is a general approach to identify disease-resistance gene candidates in plants; however, it requires several time-consuming steps including population or fine mapping. Therefore, in the present study, we suggest a new combined strategy to improve the identification of disease-resistance gene candidates. METHODS AND RESULTS: Downy mildew (DM)-resistant maize was selected from five cultivars using a spreader row technique...
February 2017: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28223977/staphylococcal-aureus-enterotoxin-c-and-enterotoxin-like-l-associated-with-post-partum-mastitis
#15
Kristina T Franck, Heidi Gumpert, Bente Olesen, Anders R Larsen, Andreas Petersen, Jette Bangsborg, Per Albertsen, Henrik Westh, Mette D Bartels
Denmark is a low prevalence country with regard to methicillin resistant Staphylococcus aureus (MRSA). In 2008 and 2014, two neonatal wards in the Copenhagen area experienced outbreaks with a typical community acquired MRSA belonging to the same spa type and sequence type (t015:ST45) and both were PVL and ACME negative. In outbreak 1, the isolates harbored SCCmec IVa and in outbreak 2 SCCmec V. The clinical presentation differed between the two outbreaks, as none of five MRSA positive mothers in outbreak 1 had mastitis vs...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28223918/rpph1-upregulates-cdc42-expression-and-promotes-hippocampal-neuron-dendritic-spine-formation-by-competing-with-mir-330-5p
#16
Yifei Cai, Ziling Sun, Huizhen Jia, Hongxue Luo, Xiaoyang Ye, Qi Wu, Yi Xiong, Wei Zhang, Jun Wan
Alzheimer's disease (AD) is a heterogeneous neurodegenerative disease. Recent studies employing microRNA-seq and genome-wide sequencing have identified some non-coding RNAs that are influentially involved in AD pathogenesis. Non-coding RNAs can compete with other endogenous RNAs by microRNA response elements (MREs) and manipulate biological processes, such as tumorigenesis. However, only a few non-coding RNAs have been reported in the pathogenesis of AD. In this study, we constructed the first competing endogenous RNA (ceRNA) network leveraging whole transcriptome sequencing and a previously studied microRNA-seq of APPswe/PS1ΔE9 transgenic mice...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28223711/identification-of-novel-cancer-therapeutic-targets-using-a-designed-and-pooled-shrna-library-screen
#17
David Oliver, Hao Ji, Piaomu Liu, Alexander Gasparian, Ellen Gardiner, Samuel Lee, Adrian Zenteno, Lillian O Perinskaya, Mengqian Chen, Phillip Buckhaults, Eugenia Broude, Michael D Wyatt, Homayoun Valafar, Edsel Peña, Michael Shtutman
Targeted cancer therapeutics aim to exploit tumor-specific, genetic vulnerabilities specifically affecting neoplastic cells without similarly affecting normal cells. Here we performed sequencing-based screening of an shRNA library on a panel of cancer cells of different origins as well as normal cells. The shRNA library was designed to target a subset of genes previously identified using a whole genome screening approach. This focused shRNA library was infected into cells followed by analysis of enrichment and depletion of the shRNAs over the course of cell proliferation...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28223526/hypermutation-signature-reveals-a-slippage-and-realignment-model-of-translesion-synthesis-by-rev3-polymerase-in-cisplatin-treated-yeast
#18
Romulo Segovia, Yaoqing Shen, Scott A Lujan, Steven J M Jones, Peter C Stirling
Gene-gene or gene-drug interactions are typically quantified using fitness as a readout because the data are continuous and easily measured in high throughput. However, to what extent fitness captures the range of other phenotypes that show synergistic effects is usually unknown. Using Saccharomyces cerevisiae and focusing on a matrix of DNA repair mutants and genotoxic drugs, we quantify 76 gene-drug interactions based on both mutation rate and fitness and find that these parameters are not connected. Independent of fitness defects, we identified six cases of synthetic hypermutation, where the combined effect of the drug and mutant on mutation rate was greater than predicted...
February 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28223510/pemapper-and-pecaller-provide-a-simplified-approach-to-whole-genome-sequencing
#19
H Richard Johnston, Pankaj Chopra, Thomas S Wingo, Viren Patel, Michael P Epstein, Jennifer G Mulle, Stephen T Warren, Michael E Zwick, David J Cutler
The analysis of human whole-genome sequencing data presents significant computational challenges. The sheer size of datasets places an enormous burden on computational, disk array, and network resources. Here, we present an integrated computational package, PEMapper/PECaller, that was designed specifically to minimize the burden on networks and disk arrays, create output files that are minimal in size, and run in a highly computationally efficient way, with the single goal of enabling whole-genome sequencing at scale...
February 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28223462/fallacy-of-the-unique-genome-sequence-diversity-within-single-helicobacter-pylori-strains
#20
Jenny L Draper, Lori M Hansen, David L Bernick, Samar Abedrabbo, Jason G Underwood, Nguyet Kong, Bihua C Huang, Allison M Weis, Bart C Weimer, Arnoud H M van Vliet, Nader Pourmand, Jay V Solnick, Kevin Karplus, Karen M Ottemann
Many bacterial genomes are highly variable but nonetheless are typically published as a single assembled genome. Experiments tracking bacterial genome evolution have not looked at the variation present at a given point in time. Here, we analyzed the mouse-passaged Helicobacter pylori strain SS1 and its parent PMSS1 to assess intra- and intergenomic variability. Using high sequence coverage depth and experimental validation, we detected extensive genome plasticity within these H. pylori isolates, including movement of the transposable element IS607, large and small inversions, multiple single nucleotide polymorphisms, and variation in cagA copy number...
February 21, 2017: MBio
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