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https://www.readbyqxmd.com/read/28342740/the-development-of-a-real-time-reverse-transcription-polymerase-chain-reaction-rrt-pcr-assay-using-taqman-technology-for-the-pan-detection-of-bluetongue-virus-btv
#1
Catherine Mulholland, Michael J McMenamy, Bernd Hoffmann, Bernadette Earley, Bryan Markey, Joseph Cassidy, Gordon Allan, Michael D Welsh, John McKillen
Bluetongue virus (BTV) is an infectious, non-contagious viral disease of domestic and wild ruminants that is transmitted by adult females of certain Culicoides species. Since 2006, several serotypes including BTV-1, 2, 4, 6, 8, 9 and 16, have spread from the Mediterranean basin into Northern Europe for the first time. BTV-8 in particular, caused a major epidemic in northern Europe. As a result, it is evident that most European countries are at risk of BTV infection. The objective of this study was to develop and validate a real-time reverse transcriptase-polymerase chain reaction (rRT-PCR) assay based on TaqMan technology for the detection of representative strains of all BTV serotypes...
March 22, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28339951/characterization-of-a-hypervirulent-fowl-adenovirus-4-with-the-novel-genotype-newly-prevalent-in-china-and-establishment-of-reproduction-infection-model-of-hydropericardium-syndrome-in-chickens
#2
Q Pan, L Liu, Y Gao, C Liu, X Qi, Y Zhang, Y Wang, K Li, L Gao, X Wang, H Cui
Severe hydropericardium syndrome (HPS) has been present in layers in the northeast of China since June 2015, with mortality rates varying from 30 to 90%. Dead layers had severe hydropericardium with pericardial volumes of 5 to 20 mL, as well as inclusion body hepatitis. Laboratory investigations led to the isolation of a fowl adenovirus strain, HLJFAd15, from the liver tissue of dead layers. Natural deletions of ORF19 and ORF27 were found in this clinical strain by complete genome sequencing, which was identified with the novel genotype recently prevalent in China...
March 4, 2017: Poultry Science
https://www.readbyqxmd.com/read/28335496/quantitative-analysis-of-the-kshv-transcriptome-following-primary-infection-of-blood-and-lymphatic-endothelial-cells
#3
A Gregory Bruce, Serge Barcy, Terri DiMaio, Emilia Gan, H Jacques Garrigues, Michael Lagunoff, Timothy M Rose
The transcriptome of the Kaposi's sarcoma-associated herpesvirus (KSHV/HHV8) after primary latent infection of human blood (BEC), lymphatic (LEC) and immortalized (TIME) endothelial cells was analyzed using RNAseq, and compared to long-term latency in BCBL-1 lymphoma cells. Naturally expressed transcripts were obtained without artificial induction, and a comprehensive annotation of the KSHV genome was determined. A set of unique coding sequence (UCDS) features and a process to resolve overlapping transcripts were developed to accurately quantitate transcript levels from specific promoters...
March 19, 2017: Pathogens
https://www.readbyqxmd.com/read/28334899/association-analyses-of-east-asian-individuals-and-trans-ancestry-analyses-with-european-individuals-reveal-new-loci-associated-with-cholesterol-and-triglyceride-levels
#4
Cassandra N Spracklen, Peng Chen, Young Jin Kim, Xu Wang, Hui Cai, Shengxu Li, Jirong Long, Ying Wu, Ya Xing Wang, Fumihiko Takeuchi, Jer-Yuarn Wu, Keum-Ji Jung, Cheng Hu, Koichi Akiyama, Yonghong Zhang, Sanghoon Moon, Todd A Johnson, Huaixing Li, Rajkumar Dorajoo, Meian He, Maren E Cannon, Tamara S Roman, Elias Salfati, Keng-Hung Lin, Xiuqing Guo, Wayne H H Sheu, Devin Absher, Linda S Adair, Themistocles L Assimes, Tin Aung, Qiuyin Cai, Li-Ching Chang, Chien-Hsiun Chen, Li-Hsin Chien, Lee-Ming Chuang, Shu-Chun Chuang, Shufa Du, Qiao Fan, Cathy S J Fann, Alan B Feranil, Yechiel Friedlander, Penny Gordon-Larsen, Dongfeng Gu, Lixuan Gui, Zhirong Guo, Chew-Kiat Heng, James Hixson, Xuhong Hou, Chao Agnes Hsiung, Yao Hu, Mi Yeong Hwang, Chii-Min Hwu, Masato Isono, Jyh-Ming Jimmy Juang, Chiea-Chuen Khor, Yun Kyoung Kim, Woon-Puay Koh, Michiaki Kubo, I-Te Lee, Sun-Ju Lee, Wen-Jane Lee, Kae-Woei Liang, Blanche Lim, Sing-Hui Lim, Jianjun Liu, Toru Nabika, Wen-Harn Pan, Hao Peng, Thomas Quertermous, Charumathi Sabanayagam, Kevin Sandow, Jinxiu Shi, Liang Sun, Pok Chien Tan, Shu-Pei Tan, Kent D Taylor, Yik-Ying Teo, Sue-Anne Toh, Tatsuhiko Tsunoda, Rob M van Dam, Aili Wang, Feijie Wang, Jie Wang, Wen Bin Wei, Yong-Bing Xiang, Jie Yao, Jian-Min Yuan, Rong Zhang, Wanting Zhao, Yii-Der Ida Chen, Stephen S Rich, Jerome I Rotter, Tzung-Dau Wang, Tangchun Wu, Xu Lin, Bok-Ghee Han, Toshihiro Tanaka, Yoon Shin Cho, Tomohiro Katsuya, Weiping Jia, Sun-Ha Jee, Yuan-Tsong Chen, Norihiro Kato, Jost B Jonas, Ching-Yu Cheng, Xiao-Ou Shu, Jiang He, Wei Zheng, Tien-Yin Wong, Wei Huang, Bong-Jo Kim, E-Shyong Tai, Karen L Mohlke, Xueling Sim
Large-scale meta-analyses of genome-wide association studies (GWAS) have identified >175 loci associated with fasting cholesterol levels, including total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and triglycerides (TG). With differences in linkage disequilibrium (LD) structure and allele frequencies between ancestry groups, studies in additional large samples may detect new associations. We conducted staged GWAS meta-analyses in up to 69,414 East Asian individuals from 24 studies with participants from Japan, the Philippines, Korea, China, Singapore, and Taiwan...
February 21, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334241/rmats-dvr-rmats-discovery-of-differential-variants-in-rna
#5
Jinkai Wang, Yang Pan, Shihao Shen, Lan Lin, Yi Xing
Motivation: RNA sequences of a gene can have single nucleotide variants (SNVs) due to single nucleotide polymorphisms (SNPs) in the genome, or RNA editing events within the RNA. By comparing RNA-seq data of a given cell type before and after a specific perturbation, we can detect and quantify SNVs in the RNA and discover SNVs with altered frequencies between distinct cellular states. Such differential variants in RNA (DVRs) may reflect allele-specific changes in gene expression or RNA processing, as well as changes in RNA editing in response to cellular perturbations or stimuli...
March 11, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28333230/bayesian-analysis-of-evolutionary-divergence-with-genomic-data-under-diverse-demographic-models
#6
Yujin Chung, Jody Hey
We present a new Bayesian method for estimating demographic and phylogenetic history using population genomic data. Several key innovations are introduced that allow the study of diverse models within an Isolation with Migration framework. The new method implements a 2-step analysis, with an initial Markov chain Monte Carlo (MCMC) phase that samples simple coalescent trees, followed by the calculation of the joint posterior density for the parameters of a demographic model. In step 1, the MCMC sampling phase, the method uses a reduced state space, consisting of coalescent trees without migration paths, and a simple importance sampling distribution without the demography of interest...
February 25, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28331090/hili-inhibits-hiv-replication-in-activated-t-cells
#7
B Matija Peterlin, Pingyang Liu, Xiaoyun Wang, Daniele Cary, Wei Shao, Marie Leoz, Tian Hong, Tao Pan, Koh Fujinaga
Piwil proteins restrict the replication of mobile genetic elements in the germline. They are also expressed in many transformed cell lines. In this report, we discovered that the human piwil 2 (hili) can also inhibit HIV replication, especially in activated CD4+ T cells that are the preferred target cells for this virus in the infected host. Although resting cells did not express hili, it was rapidly induced following T cell activation. In these cells and transformed cell lines, depletion of hili increased levels of viral proteins and new viral particles...
March 22, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28331089/diversity-distribution-and-evolution-of-tomato-viruses-in-china-uncovered-by-small-rna-sequencing
#8
Chenxi Xu, Xuepeng Sun, Angela Taylor, Chen Jiao, Yimin Xu, Xiaofeng Cai, Xiaoli Wang, Chenhui Ge, Guanghui Pan, Quanxi Wang, Zhangjun Fei, Quanhua Wang
Tomato is a major vegetable crop that has tremendous popularity. However, viral disease is still a major factor limiting tomato production. Here we report the tomato virome identified through sequencing small RNAs of 170 field-grown samples collected in China. A total of 22 viruses were identified including both well-documented and newly detected viruses. The tomato viral community is dominated by a few species, and they exhibit polymorphisms and recombination in the genomes with coldspots and hotspots. Most samples were co-infected by multiple viruses and the majority of identified viruses are positive-sense single-stranded RNA viruses...
March 22, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28327996/genome-sequencing-of-the-sweetpotato-whitefly-bemsia-tabaci-med-q
#9
Wen Xie, Chunhai Chen, Zezhong Yang, Litao Guo, Xin Yang, Dan Wang, Ming Chen, Jinqun Huang, Yanan Wen, Yang Zeng, Yating Liu, Jixing Xia, Lixia Tian, Hongying Cui, Qingjun Wu, Shaoli Wang, Baoyun Xu, Xianchun Li, Xinqiu Tan, Murad Ghanim, Baoli Qiu, Huipeng Pan, Dong Chu, Helene Delatte, M N Maruthi, Feng Ge, Xueping Zhou, Xiaowei Wang, Fanghao Wan, Yuzhou Du, Chen Luo, Fengming Yan, Evan L Preisser, Xiaoguo Jiao, Brad S Coates, Jinyang Zhao, Qiang Gao, Jinquan Xia, Ye Yin, Yong Liu, Judith K Brown, Xuguo Joe Zhou, Youjun Zhang
Background: The sweetpotato whitefly Bemisia tabaci is a highly destructive agricultural and ornamental crop pest. It damages host plants through both phloem feeding and vectoring plant pathogens. Introductions of B. tabaci are difficult to quarantine and eradicate because of its high reproductive rates, broad host plant range, and insecticide resistance. Findings: A total of 791 Gb of raw DNA sequence from whole genome shotgun sequencing, and 13 BAC pooling libraries were generated by Illumina sequencing using different combinations of mate-pair and pair-end libraries...
March 15, 2017: GigaScience
https://www.readbyqxmd.com/read/28325903/whole-genome-analysis-of-human-papillomavirus-types-16-18-and-58-isolated-from-cervical-precancer-and-cancer-samples-in-chinese-women
#10
Ying Liu, Yaqi Pan, Weijiao Gao, Yang Ke, Zheming Lu
Human papillomavirus (HPV) types 16, 18 and 58 are ranked the top three high-risk HPV types for cervical intraepithelial neoplasia (CIN) and invasive carcinoma. We aimed to evaluate the diversity of HPV16, HPV18, and HPV58 genetic variants by HPV capture technology combined with next generation sequencing. 295, 73, and 148 variations were observed in 51 HPV16, 7 HPV18, and 11 HPV58 genomes, respectively. HPV16 isolates were predominantly of the A variant lineage, and sublineage A4 (Asian) was the most common...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28325850/phenotypic-diversity-and-genotypic-flexibility-of-burkholderia-cenocepacia-during-long-term-chronic-infection-of-cystic-fibrosis-lungs
#11
Amy Huei-Yi Lee, Stephane Flibotte, Sunita Sinha, Adrianna Paiero, Rachel L Ehrlich, Sergey Balashov, Garth D Ehrlich, James E A Zlosnik, Joshua Chang Mell, Corey Nislow
Chronic bacterial infections of the lung are the leading cause of morbidity and mortality in cystic fibrosis patients. Tracking bacterial evolution during chronic infections can provide insights into how host selection pressures-including immune responses and therapeutic interventions-shape bacterial genomes. We carried out genomic and phenotypic analyses of 215 serially collected Burkholderia cenocepacia isolates from 16 cystic fibrosis patients, spanning a period of 2-20 yr and a broad range of epidemic lineages...
March 21, 2017: Genome Research
https://www.readbyqxmd.com/read/28325848/hierarchically-aligning-10-legume-genomes-establishes-a-family-level-genomics-platform
#12
Jinpeng Wang, Pengchuan Sun, Yuxian Li, Yinzhe Liu, Jigao Yu, Xuelian Ma, Sangrong Sun, Nanshan Yang, Ruiyan Xia, Tianyu Lei, Xiaojian Liu, Beibei Jiao, Yue Xing, Weina Ge, Li Wang, Zhenyi Wang, Xiaoming Song, Min Yuan, Di Guo, Lan Zhang, Jiaqi Zhang, Dianchuan Jin, Wei Chen, Yuxin Pan, Tao Liu, Ling Jin, Jinshuai Sun, Jiaxiang Yu, Rui Cheng, Xueqian Duan, Shaoqi Shen, Jun Qin, Mengchen Zhang, Andrew H Paterson, Xiyin Wang
Mainly due to their economic importance, genomes of 10 legumes, including soybean, wild peanuts, barrel medic, etc, have been sequenced. However, a family-level comparative genomics analysis has been unavailable. With grape and selected legume genomes as outgroups, we managed to perform a hierarchical and event-related alignment of these genomes and deconvoluted layers of homologous regions produced by ancestral polyploidizations or speciations. Consequently, we illustrated genomic fractionation characterized by wide-spread gene losses after the polyploidizations...
March 21, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28320919/pan-cancer-analysis-distinguishes-transcriptional-changes-of-aneuploidy-from-proliferation
#13
Christopher Buccitelli, Lorena Salgueiro, Konstantina Rowald, Rocio Sotillo, Balca R Mardin, Jan O Korbel
Patterns of gene expression in tumors can arise as a consequence of or result in genomic instability, characterized by the accumulation of somatic copy number alterations (SCNAs) and point mutations (PMs). Expression signatures have been widely used as markers for genomic instability, and both SCNAs and PMs could be thought to associate with distinct signatures given their different formation mechanisms. Here we test this notion by systematically investigating SCNA, PM, and transcriptome data from 2660 cancer patients representing 11 tumor types...
March 20, 2017: Genome Research
https://www.readbyqxmd.com/read/28320527/characterization-and-genome-functional-analysis-of-the-ddt-degrading-bacterium-ochrobactrum-sp-ddt-2
#14
Xiong Pan, Tianheng Xu, Haoyu Xu, Hua Fang, Yunlong Yu
A strain of Ochrobactrum sp. DDT-2 that was capable of degrading DDT as the sole carbon and energy source was isolated and sequenced, and its biodegradation characteristics and metabolism mechanism were examined. The genome sequence of the isolate DDT-2 was composed of 4,630,303bp with a GC content of 55.99% and 4454 coding genes. The degradation rate of DDT by the isolate DDT-2 increased with the increasing substrate concentration (0.1-10mg/l) and temperature (20-40°C). The degradation half-life of DDT in the presence of the isolate DDT-2 at pH7...
March 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28314726/global-distribution-patterns-and-pangenomic-diversity-of-the-candidate-phylum-latescibacteria-ws3
#15
Ibrahim F Farag, Noha H Youssef, Mostafa S Elshahed
We investigated the global distribution patterns and pangenomic diversity of the candidate phylum "Latescibacteria" (WS3) in 16S rRNA gene as well as metagenomic datasets. We document distinct distribution patterns for various "Latescibacteria" orders in 16S rRNA gene datasets, with prevalence of orders sediment_1 in terrestrial, PBSIII_9 in groundwater and temperate freshwater, and GN03 in pelagic marine, saline-hypersaline, and wastewater habitats. Using a fragment recruitment approach, we identified 68.9 Mb of "Latescibacteria"-affiliated contigs in publicly available metagenomic datasets comprising 73,079 proteins...
March 17, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28304396/associations-between-genetic-variants-in-mrna-splicing-related-genes-and-risk-of-lung-cancer-a-pathway-based-analysis-from-published-gwass
#16
Yongchu Pan, Hongliang Liu, Yanru Wang, Xiaozheng Kang, Zhensheng Liu, Kouros Owzar, Younghun Han, Li Su, Yongyue Wei, Rayjean J Hung, Yonathan Brhane, John McLaughlin, Paul Brennan, Heike Bickeböller, Albert Rosenberger, Richard S Houlston, Neil Caporaso, Maria Teresa Landi, Joachim Heinrich, Angela Risch, Xifeng Wu, Yuanqing Ye, David C Christiani, Christopher I Amos, Qingyi Wei
mRNA splicing is an important mechanism to regulate mRNA expression. Abnormal regulation of this process may lead to lung cancer. Here, we investigated the associations of 11,966 single-nucleotide polymorphisms (SNPs) in 206 mRNA splicing-related genes with lung cancer risk by using the summary data from six published genome-wide association studies (GWASs) of Transdisciplinary Research in Cancer of the Lung (TRICL) (12,160 cases and 16,838 controls) and another two lung cancer GWASs of Harvard University (984 cases and 970 controls) and deCODE (1,319 cases and 26,380 controls)...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28303144/the-cytochrome-p450-gene-cscyp85a1-is-a-putative-candidate-for-super-compact-1-scp-1-plant-architecture-mutation-in-cucumber-cucumis-sativus-l
#17
Hui Wang, Wanqing Li, Yaguang Qin, Yupeng Pan, Xiaofeng Wang, Yiqun Weng, Peng Chen, Yuhong Li
The dwarf or compact plant architecture is an important trait in plant breeding. A number of genes controlling plant height have been cloned and functionally characterized which often involve in biosynthesis or signaling of plant hormones such as brassinosteroids (BRs). No genes for plant height or vine length have been cloned in cucurbit crops (family Cucurbitaceae). From an EMS-induced mutagenesis population, we identified a super compact (SCP) mutant C257 which was extremely dwarf due to practically no internode elongation...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28302555/development-of-bioinformatics-infrastructure-for-genomics-research-in-h3africa
#18
Nicola J Mulder, Ezekiel Adebiyi, Marion Adebiyi, Seun Adeyemi, Azza Ahmed, Rehab Ahmed, Bola Akanle, Mohamed Alibi, Don L Armstrong, Shaun Aron, Efejiro Ashano, Shakuntala Baichoo, Alia Benkahla, David K Brown, Emile R Chimusa, Faisal M Fadlelmola, Dare Falola, Segun Fatumo, Kais Ghedira, Amel Ghouila, Scott Hazelhurst, Iunu Isewon, Segun Jung, Samar Kamal Kassim, Jonathan K Kayondo, Mamana Mbiyavanga, Ayton Meintjes, Somia Mohammed, Abayomi Mosaku, Ahmed Moussa, Mustafa Muhammd, Zahra Mungloo-Dilmohamud, Oyekanmi Nashiru, Trust Odia, Adaobi Okafor, Olaleye Oladipo, Victor Osamor, Jellili Oyelade, Khalid Sadki, Samson Pandam Salifu, Jumoke Soyemi, Sumir Panji, Fouzia Radouani, Oussama Souiai, Özlem Tastan Bishop
BACKGROUND: Although pockets of bioinformatics excellence have developed in Africa, generally, large-scale genomic data analysis has been limited by the availability of expertise and infrastructure. H3ABioNet, a pan-African bioinformatics network, was established to build capacity specifically to enable H3Africa (Human Heredity and Health in Africa) researchers to analyze their data in Africa. Since the inception of the H3Africa initiative, H3ABioNet's role has evolved in response to changing needs from the consortium and the African bioinformatics community...
March 13, 2017: Global Heart
https://www.readbyqxmd.com/read/28302113/a-restriction-free-method-for-gene-reconstitution-using-two-single-primer-pcrs-in-parallel-to-generate-compatible-cohesive-ends
#19
Fanli Zeng, Zhimin Hao, Pan Li, Yanan Meng, Jingao Dong, Yibin Lin
BACKGROUND: Restriction-free (RF) cloning, a PCR-based method for the creation of custom DNA plasmids, allows for the insertion of any sequence into any plasmid vector at any desired position, independent of restriction sites and/or ligation. Here, we describe a simple and fast method for performing gene reconstitution by modified RF cloning. RESULTS: Double-stranded inserts and acceptors were first amplified by regular PCR. The amplified fragments were then used as the templates in two separate linear amplification reactions containing either forward or reverse primer to generate two single-strand reverse-complement counterparts, which could anneal to each other...
March 17, 2017: BMC Biotechnology
https://www.readbyqxmd.com/read/28300060/h3-ubiquitination-by-nedd4-regulates-h3-acetylation-and-tumorigenesis
#20
Xian Zhang, Binkui Li, Abdol Hossein Rezaeian, Xiaohong Xu, Ping-Chieh Chou, Guoxiang Jin, Fei Han, Bo-Syong Pan, Chi-Yun Wang, Jie Long, Anmei Zhang, Chih-Yang Huang, Fuu-Jen Tsai, Chang-Hai Tsai, Christopher Logothetis, Hui-Kuan Lin
Dynamic changes in histone modifications under various physiological cues play important roles in gene transcription and cancer. Identification of new histone marks critical for cancer development is of particular importance. Here we show that, in a glucose-dependent manner, E3 ubiquitin ligase NEDD4 ubiquitinates histone H3 on lysine 23/36/37 residues, which specifically recruits histone acetyltransferase GCN5 for subsequent H3 acetylation. Genome-wide analysis of chromatin immunoprecipitation followed by sequencing reveals that NEDD4 regulates glucose-induced H3 K9 acetylation at transcription starting site and enhancer regions...
March 16, 2017: Nature Communications
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