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BMC Genomics

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https://www.readbyqxmd.com/read/30660184/dose-dependent-impact-of-oxytetracycline-on-the-veal-calf-microbiome-and-resistome
#1
Bart J F Keijser, Valeria Agamennone, Tim J van den Broek, Martien Caspers, Adri van de Braak, Richard Bomers, Mieke Havekes, Eric Schoen, Martin van Baak, Daniël Mioch, Lonneke Bomers, Roy C Montijn
BACKGROUND: Antibiotic therapy is commonly used in animal agriculture. Antibiotics excreted by the animals can contaminate farming environments, resulting in long term exposure of animals to sub-inhibitory levels of antibiotics. Little is known on the effect of this exposure on antibiotic resistance. In this study, we aimed to investigate the long term effects of sub-inhibitory levels of antibiotics on the gut microbiota composition and resistome of veal calves in vivo. Forty-two veal calves were randomly assigned to three groups...
January 19, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30660177/isolation-of-blue-green-eggshell-pigmentation-related-genes-from-putian-duck-through-rna-seq
#2
Ding-Ping Bai, Xin-Yu Lin, Yan Wu, Shi-Ye Zhou, Zhong-Bin Huang, Yi-Fan Huang, Ang Li, Xiao-Hong Huang
BACKGROUND: The diversity of avian eggshell colour plays important biological roles in ensuring successful reproduction. Eggshell colour is also an important trait in poultry, but the mechanisms underlying it are poorly understood in ducks. This study aimed to provide insights into the mechanism of blue-green eggshell colour generation. RESULTS: Here, white-shelled ducks (HBR) and blue-green-shelled ducks (HQR) were selected from Putian black ducks, and white-shelled ducks (BBR) were selected from Putian white ducks...
January 19, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30658593/genomic-resources-for-the-neotropical-tree-genus-cedrela-meliaceae-and-its-relatives
#3
Kristen N Finch, F Andrew Jones, Richard C Cronn
BACKGROUND: Tree species in the genus Cedrela P. Browne are threatened by timber overexploitation across the Neotropics. Genetic identification of processed timber can be used to supplement wood anatomy to assist in the taxonomic and source validation of protected species and populations of Cedrela. However, few genetic resources exist that enable both species and source identification of Cedrela timber products. We developed several 'omic resources including a leaf transcriptome, organelle genome (cpDNA), and diagnostic single nucleotide polymorphisms (SNPs) that may assist the classification of Cedrela specimens to species and geographic origin and enable future research on this widespread Neotropical tree genus...
January 18, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30658590/a-dynamic-degradome-landscape-on-mirnas-and-their-predicted-targets-in-sugarcane-caused-by-sporisorium-scitamineum-stress
#4
Yachun Su, Xinhuan Xiao, Hui Ling, Ning Huang, Feng Liu, Weihua Su, Yuye Zhang, Liping Xu, Khushi Muhammad, Youxiong Que
BACKGROUND: Sugarcane smut is a fungal disease caused by Sporisorium scitamineum. Cultivation of smut-resistant sugarcane varieties is the most effective way to control this disease. The interaction between sugarcane and S. scitamineum is a complex network system. However, to date, there is no report on the identification of microRNA (miRNA) target genes of sugarcane in response to smut pathogen infection by degradome technology. RESULTS: TaqMan qRT-PCR detection and enzyme activity determination showed that S...
January 18, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30658579/comparative-analysis-reveals-the-genomic-islands-in-pasteurella-multocida-population-genetics-on-symbiosis-and-adaptability
#5
Dekang Zhu, Jiao He, Zhishuang Yang, Mingshu Wang, Renyong Jia, Shun Chen, Mafeng Liu, Xinxin Zhao, Qiao Yang, Ying Wu, Shaqiu Zhang, Yunya Liu, Ling Zhang, Yanling Yu, Yu You, Xiaoyue Chen, Anchun Cheng
BACKGROUND: Pasteurella multocida (P. multocida) is a widespread opportunistic pathogen that infects human and various animals. Genomic Islands (GIs) are one of the most important mobile components that quickly help bacteria acquire large fragments of foreign genes. However, the effects of GIs on P. multocida are unknown in the evolution of bacterial populations. RESULTS: Ten avian-sourced P. multocida obtained through high-throughput sequencing together with 104 publicly available P...
January 18, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30658577/high-throughput-chipmentation-freely-scalable-single-day-chipseq-data-generation-from-very-low-cell-numbers
#6
Charlotte Gustafsson, Ayla De Paepe, Christian Schmidl, Robert Månsson
BACKGROUND: Chromatin immunoprecipitation coupled to sequencing (ChIP-seq) is widely used to map histone modifications and transcription factor binding on a genome-wide level. RESULTS: We present high-throughput ChIPmentation (HT-ChIPmentation) that eliminates the need for DNA purification prior to library amplification and reduces reverse-crosslinking time from hours to minutes. CONCLUSIONS: The resulting workflow is easily established, extremely rapid, and compatible with requirements for very low numbers of FACS sorted cells, high-throughput applications and single day data generation...
January 18, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30658572/a-global-analysis-of-cnvs-in-diverse-yak-populations-using-whole-genome-resequencing
#7
Hui Wang, Zhixin Chai, Dan Hu, Qiumei Ji, Jinwei Xin, Chengfu Zhang, Jincheng Zhong
BACKGROUND: Genomic structural variation represents a source for genetic and phenotypic variation, which may be subject to selection during the environmental adaptation and population differentiation. Here, we described a genome-wide analysis of copy number variations (CNVs) in 16 populations of yak based on genome resequencing data and CNV-based cluster analyses of these populations. RESULTS: In total, we identified 51,461 CNV events and defined 3174 copy number variation regions (CNVRs) that covered 163...
January 18, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30658568/identification-of-new-signalling-peptides-through-a-genome-wide-survey-of-250-fungal-secretomes
#8
Morgane Le Marquer, Hélène San Clemente, Christophe Roux, Bruno Savelli, Nicolas Frei Dit Frey
BACKGROUND: Many small peptides regulate eukaryotic cell biology. In fungi, some of these peptides are produced after KEX2 protease activity on proteins displaying repetitions of identical or nearly identical motifs. Following this endoprotease activity, peptides are released in the extracellular space. This type of protein maturation is involved in the production of the α-type sexual pheromone in Ascomycota. In other cases, this processing allows the production of secreted peptides regulating fungal cell wall structure or acting as mycotoxins...
January 18, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30658567/proteomic-analysis-reveals-response-of-differential-wheat-triticum-aestivum-l-genotypes-to-oxygen-deficiency-stress
#9
Rui Pan, Dongli He, Le Xu, Meixue Zhou, Chengdao Li, Chu Wu, Yanhao Xu, Wenying Zhang
BACKGROUND: Waterlogging is one of the main abiotic stresses that limit wheat production. Quantitative proteomics analysis has been applied in the study of crop abiotic stress as an effective way in recent years (e.g. salt stress, drought stress, heat stress and waterlogging stress). However, only a few proteins related to primary metabolism and signal transduction, such as UDP - glucose dehydrogenase, UGP, beta glucosidases, were reported to response to waterlogging stress in wheat. The differentially expressed proteins between genotypes of wheat in response to waterlogging are less-defined...
January 18, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30658565/expression-analysis-of-lung-mirnas-responding-to-ovine-vm-virus-infection-by-rna-seq
#10
Martin Bilbao-Arribas, Naiara Abendaño, Endika Varela-Martínez, Ramsés Reina, Damián de Andrés, Begoña M Jugo
BACKGROUND: MicroRNAs (miRNAs) are short endogenous, single-stranded, noncoding small RNA molecules of approximately 22 nucleotides in length. They regulate gene expression posttranscriptionally by silencing mRNA expression, thus orchestrating many physiological processes. The Small Ruminant Lentiviruses (SRLV) group includes the Visna Maedi Virus (VMV) and Caprine Arthritis Encephalitis (CAEV) viruses, which cause a disease in sheep and goats characterized by pneumonia, mastitis, arthritis and encephalitis...
January 18, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30654752/low-temperature-induced-changes-in-the-transcriptome-reveal-a-major-role-of-cgsvp-genes-in-regulating-flowering-of-cymbidium-goeringii
#11
Fengxi Yang, Genfa Zhu, Yonglu Wei, Jie Gao, Gang Liang, Lingyuan Peng, Chuqiao Lu, Jianpeng Jin
BACKGROUND: Cymbidium goeringii is one of the most horticulturally important and popular ornamental plants in the orchid family (Orchidaceae). It blooms in winter during January-March and a period of low temperature is necessary for its normal flowering, otherwise there is flower bud abortion, which seriously affects the economic benefits. However, the molecular mechanism underlying winter-blooming behavior in C. goeringii is unclear. RESULTS: In this research, we firstly study the flowering physiology of C...
January 17, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30654749/snp-chip-a-versatile-and-tag-free-method-to-quantify-changes-in-protein-binding-across-the-genome
#12
Luis A Vale-Silva, Tovah E Markowitz, Andreas Hochwagen
BACKGROUND: Chromatin-immunoprecipitation followed by sequencing (ChIP-seq) is the method of choice for mapping genome-wide binding of chromatin-associated factors. However, broadly applicable methods for between-sample comparisons are lacking. RESULTS: Here, we introduce SNP-ChIP, a method that leverages small-scale intra-species polymorphisms, mainly SNPs, for quantitative spike-in normalization of ChIP-seq results. Sourcing spike-in material from the same species ensures antibody cross-reactivity and physiological coherence, thereby eliminating two central limitations of traditional spike-in approaches...
January 17, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30654743/diffusible-signal-factor-dsf-mediated-quorum-sensing-modulates-expression-of-diverse-traits-in-xanthomonas-citri-and-responses-of-citrus-plants-to-promote-disease
#13
Lei Li, Jinyun Li, Yunzeng Zhang, Nian Wang
BACKGROUND: The gram-negative Xanthomonas genus contains a large group of economically important plant pathogens, which cause severe diseases on many crops worldwide. The diffusible signal factor (DSF) - mediated quorum sensing (QS) system coordinates expression of virulence factors in plant pathogenic Xanthomonas spp. However, the regulatory effects of this system during the Xanthomonas- plant interactions remain unclear from both the pathogen and host aspects. RESULTS: In this study, we investigated the in planta DSF- mediated QS regulon of X...
January 17, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30654742/peptimapper-proteogenomics-workflow-for-the-expert-annotation-of-eukaryotic-genomes
#14
Laetitia Guillot, Ludovic Delage, Alain Viari, Yves Vandenbrouck, Emmanuelle Com, Andrés Ritter, Régis Lavigne, Dominique Marie, Pierre Peterlongo, Philippe Potin, Charles Pineau
BACKGROUND: Accurate structural annotation of genomes is still a challenge, despite the progress made over the past decade. The prediction of gene structure remains difficult, especially for eukaryotic species, and is often erroneous and incomplete. We used a proteogenomics strategy, taking advantage of the combination of proteomics datasets and bioinformatics tools, to identify novel protein coding-genes and splice isoforms, assign correct start sites, and validate predicted exons and genes...
January 17, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30654758/host-microrna-analysis-in-cyprinid-herpesvirus-3-cyhv-3-infected-common-carp
#15
Michal Reichert, Anna Lukasik, Piotr Zielenkiewicz, Marek Matras, Joanna Maj-Paluch, Magdalena Stachnik, Ewa Borzym
BACKGROUND: The mechanism of latency and the ability of the cyprinid herpesvirus 3 (CyHV-3) to establish life-long infections in carp remains poorly understood. To explain the role of miRNAs in this process we applied a range of molecular tools including high-throughput sequencing of RNA libraries constructed from the blood samples of infected fish followed by bioinformatic and functional analyses which show that CyHV-3 profoundly influences the expression of host miRNAs in vivo. RESULTS: We demonstrated the changed expression of 27 miRNAs in the clinical phase and 5 in the latent phase of infection...
January 16, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30651090/multiple-genetic-loci-define-ca-utilization-by-bloodstream-malaria-parasites
#16
Liana Apolis, Joanna Olivas, Prakash Srinivasan, Ambuj K Kushwaha, Sanjay A Desai
BACKGROUND: Bloodstream malaria parasites require Ca++ for their development, but the sites and mechanisms of Ca++ utilization are not well understood. We hypothesized that there may be differences in Ca++ uptake or utilization by genetically distinct lines of P. falciparum. These differences, if identified, may provide insights into molecular mechanisms. RESULTS: Dose response studies with the Ca++ chelator EGTA (ethylene glycol-bis(β-aminoethyl ether)-N,N,N',N'-tetraacetic acid) revealed stable differences in Ca++ requirement for six geographically divergent parasite lines used in previous genetic crosses, with the largest difference seen between the parents of the HB3 x Dd2 cross...
January 16, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30651071/genomic-changes-associated-with-adaptation-to-arid-environments-in-cactophilic-drosophila-species
#17
Rahul V Rane, Stephen L Pearce, Fang Li, Chris Coppin, Michele Schiffer, Jennifer Shirriffs, Carla M Sgrò, Philippa C Griffin, Goujie Zhang, Siu F Lee, Ary A Hoffmann, John G Oakeshott
BACKGROUND: Insights into the genetic capacities of species to adapt to future climate change can be gained by using comparative genomic and transcriptomic data to reconstruct the genetic changes associated with such adaptations in the past. Here we investigate the genetic changes associated with adaptation to arid environments, specifically climatic extremes and new cactus hosts, through such an analysis of five repleta group Drosophila species. RESULTS: We find disproportionately high rates of gene gains in internal branches in the species' phylogeny where cactus use and subsequently cactus specialisation and high heat and desiccation tolerance evolved...
January 16, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30651069/ribotag-translatomic-profiling-of-drosophila-oenocytes-under-aging-and-induced-oxidative-stress
#18
Kerui Huang, Wenhao Chen, Fang Zhu, Patrick Wai-Lun Li, Pankaj Kapahi, Hua Bai
BACKGROUND: Aging is accompanied with loss of tissue homeostasis and accumulation of cellular damages. As one of the important metabolic centers, liver shows age-related dysregulation of lipid metabolism, impaired detoxification pathway, increased inflammation and oxidative stress response. However, the mechanisms for these age-related changes still remain unclear. In the fruit fly, Drosophila melanogaster, liver-like functions are controlled by two distinct tissues, fat body and oenocytes...
January 16, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30651068/re-analysis-of-the-coral-acropora-digitifera-transcriptome-reveals-a-complex-lncrnas-mrnas-interaction-network-implicated-in-symbiodinium-infection
#19
Chen Huang, Dongliang Leng, Shixue Sun, Xiaohua Douglas Zhang
BACKGROUND: Being critically important to the ecosystem, the stability of coral reefs is directly related to the marine and surrounding terrestrial environments. However, coral reefs are now undergoing massive and accelerating devastation due to bleaching. The fact that the breakdown of symbiosis between coral and the dinoflagellate, zooxanthellae, has been well elucidated as the main cause of bleaching, implying the establishment of symbiosis with zooxanthellae plays a crucial role in maintaining coral survival...
January 16, 2019: BMC Genomics
https://www.readbyqxmd.com/read/30651065/genome-wide-systematic-characterization-of-bzip-transcription-factors-and-their-expression-profiles-during-seed-development-and-in-response-to-salt-stress-in-peanut
#20
Zhihui Wang, Liying Yan, Liyun Wan, Dongxin Huai, Yanping Kang, Lei Shi, Huifang Jiang, Yong Lei, Boshou Liao
BACKGROUND: Plant basic leucine zipper (bZIP) transcription factors play crucial roles in plant growth, development, and abiotic stress responses. However, systematic investigation and analyses of the bZIP gene family in peanut are lacking in spite of the availability of the peanut genome sequence. RESULTS: In this study, we identified 50 and 45 bZIP genes from Arachis duranensis and A. ipaensis genomes, respectively. Phylogenetic analysis showed that Arachis bZIP genes were classified into nine groups, and these clusters were supported by several group-specific features, including exon/intron structure, intron phases, MEME motifs, and predicted binding site structure...
January 16, 2019: BMC Genomics
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