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https://www.readbyqxmd.com/read/28221768/formation-of-nitrogenase-nifdk-tetramers-in-the-mitochondria-of-saccharomyces-cerevisiae
#1
Stefan Burén, Eric M Young, Elizabeth A Sweeny, Gema López-Torrejón, Marcel Veldhuizen, Christopher A Voigt, Luis M Rubio
Transferring the prokaryotic enzyme nitrogenase into a eukaryotic host with the final aim of developing N2 fixing cereal crops would revolutionize agricultural systems worldwide. Targeting it to mitochondria has potential advantages because of the organelle's high O2 consumption and the presence of bacterial-type iron-sulfur cluster biosynthetic machinery. In this study, we constructed 96 strains of Saccharomyces cerevisiae where transcriptional units comprising nine Azotobacter vinelandii nif genes (nifHDKUSMBEN) were integrated into the genome...
February 21, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/28219339/deep-illumina-sequencing-reveals-conserved-and-novel-micrornas-in-grass-carp-in-response-to-grass-carp-reovirus-infection
#2
Libo He, Aidi Zhang, Pengfei Chu, Yongming Li, Rong Huang, Lanjie Liao, Zuoyan Zhu, Yaping Wang
BACKGROUND: The grass carp hemorrhagic disease caused by the grass carp reovirus (GCRV) is a major disease that hampers the development of grass carp aquaculture. The mechanism underlying GCRV pathogenesis and hemorrhagic symptoms is still unknown. MicroRNAs (miRNAs) are key regulators involved in various biological processes. The aim of this study was to identify conserved and novel miRNAs in grass carp in response to GCRV infection, as well as attempt to reveal the mechanism underlying GCRV pathogenesis and hemorrhagic symptoms...
February 20, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28209186/identification-of-immune-protective-genes-of-eimeria-maxima-through-cdna-expression-library-screening
#3
XinChao Yang, MengHui Li, JianHua Liu, YiHong Ji, XiangRui Li, LiXin Xu, RuoFeng Yan, XiaoKai Song
BACKGROUND: Eimeria maxima is one of the most prevalent Eimeria species causing avian coccidiosis, and results in huge economic loss to the global poultry industry. Current control strategies, such as anti-coccidial medication and live vaccines have been limited because of their drawbacks. The third generation anticoccidial vaccines including the recombinant vaccines as well as DNA vaccines have been suggested as a promising alternative strategy. To date, only a few protective antigens of E...
February 16, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28202045/identification-of-micrornas-and-their-response-to-the-stress-of-plant-allelochemicals-in-aphis-gossypii-hemiptera-aphididae
#4
Kang-Sheng Ma, Fen Li, Ying Liu, Ping-Zhuo Liang, Xue-Wei Chen, Xi-Wu Gao
BACKGROUND: MicroRNAs (miRNAs) are a group of short non-coding RNAs involved in the inhibition of protein translation or in mRNA degradation. Although the regulatory roles of miRNAs in various biological processes have been investigated, there is as yet an absence of studies about the regulatory roles of miRNAs involved in the metabolism of plant allelochemicals in insects. RESULTS: We constructed five small RNA libraries from apterous Aphis gossypii adults that had fed on an artificial diet containing various allelochemicals...
February 16, 2017: BMC Molecular Biology
https://www.readbyqxmd.com/read/28198676/global-transcriptome-analysis-reveals-extensive-gene-remodeling-alternative-splicing-and-differential-transcription-profiles-in-non-seed-vascular-plant-selaginella-moellendorffii
#5
Yan Zhu, Longxian Chen, Chengjun Zhang, Pei Hao, Xinyun Jing, Xuan Li
BACKGROUND: Selaginella moellendorffii, a lycophyte, is a model plant to study the early evolution and development of vascular plants. As the first and only sequenced lycophyte to date, the genome of S. moellendorffii revealed many conserved genes and pathways, as well as specialized genes different from flowering plants. Despite the progress made, little is known about long noncoding RNAs (lncRNA) and the alternative splicing (AS) of coding genes in S. moellendorffii. Its coding gene models have not been fully validated with transcriptome data...
January 25, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28198411/the-secondary-resistome-of-multidrug-resistant-klebsiella-pneumoniae
#6
Bimal Jana, Amy K Cain, William T Doerrler, Christine J Boinett, Maria C Fookes, Julian Parkhill, Luca Guardabassi
Klebsiella pneumoniae causes severe lung and bloodstream infections that are difficult to treat due to multidrug resistance. We hypothesized that antimicrobial resistance can be reversed by targeting chromosomal non-essential genes that are not responsible for acquired resistance but essential for resistant bacteria under therapeutic concentrations of antimicrobials. Conditional essentiality of individual genes to antimicrobial resistance was evaluated in an epidemic multidrug-resistant clone of K. pneumoniae (ST258)...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28197415/pharmacoinformatics-adaptive-evolution-and-elucidation-of-six-novel-compounds-for-schizophrenia-treatment-by-targeting-daoa-g72-isoforms
#7
Sheikh Arslan Sehgal
Studies on Schizophrenia so far reveal a complex picture of neurological malfunctioning reported to be strongly associated with DAOA. Detailed sequence analyses proved DAOA as a primate specific gene having conserved gene desert region on both upstream and downstream region. The analyses of 10 MB chromosomal region of primates, birds, rodents, and reptiles having DAOA evidenced the conserved part in primates and in the rest of species, while DAOA is only present in primates. DAOA has four isoforms having one interaction partner DAO...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28196101/de-novo-assembly-characterization-and-annotation-for-the-transcriptome-of-sarcocheilichthys-sinensis
#8
Chuankun Zhu, Zhengjun Pan, Hui Wang, Guoliang Chang, Nan Wu, Huaiyu Ding
The Chinese lake gudgeon Sarcocheilichthys sinensis is a small cyprinid fish with great aquaculture potential both for its edible and ornamental values. Nevertheless, available genomic and transcriptomic information for this fish is extremely deficient. In this study, a normalized cDNA library was constructed using 13 mixed tissues of an adult male S. sinensis, and was sequenced by the Illumina HiSeq2500 platform. De novo assembly was performed using 38,911,511 obtained clean reads, and a total of 147,282 unigenes with an average length of 900 bp were finally achieved...
2017: PloS One
https://www.readbyqxmd.com/read/28188115/differential-mantle-transcriptomics-and-characterization-of-growth-related-genes-in-the-diploid-and-triploid-pearl-oyster-pinctada-fucata
#9
Yunyan Guan, Maoxian He, Houbo Wu
To explore the molecular mechanism of triploidy effect in the pearl oyster Pinctada fucata, two RNA-seq libraries were constructed from the mantle tissue of diploids and triploids by Roche-454 massive parallel pyrosequencing. The identification of differential expressed genes (DEGs) between diploid and triploid may reveal the molecular mechanism of triploidy effect. In this study, 230 down-regulated and 259 up-regulated DEGs were obtained by comparison between diploid and triploid libraries. The gene ontology and KEGG pathway analysis revealed more functional activation in triploids and it may due to the duplicated gene expression in transcriptional level during whole genome duplication (WGD)...
February 7, 2017: Marine Genomics
https://www.readbyqxmd.com/read/28185553/removing-duplicate-reads-using-graphics-processing-units
#10
Andrea Manconi, Marco Moscatelli, Giuliano Armano, Matteo Gnocchi, Alessandro Orro, Luciano Milanesi
BACKGROUND: During library construction polymerase chain reaction is used to enrich the DNA before sequencing. Typically, this process generates duplicate read sequences. Removal of these artifacts is mandatory, as they can affect the correct interpretation of data in several analyses. Ideally, duplicate reads should be characterized by identical nucleotide sequences. However, due to sequencing errors, duplicates may also be nearly-identical. Removing nearly-identical duplicates can result in a notable computational effort...
November 8, 2016: BMC Bioinformatics
https://www.readbyqxmd.com/read/28165358/extending-immunological-profiling-in-the-gilthead-sea-bream-sparus-aurata-by-enriched-cdna-library-analysis-microarray-design-and-initial-studies-upon-the-inflammatory-response-to-pamps
#11
Sebastian Boltaña, Barbara Castellana, Giles Goetz, Lluis Tort, Mariana Teles, Victor Mulero, Beatriz Novoa, Antonio Figueras, Frederick W Goetz, Cristian Gallardo-Escarate, Josep V Planas, Simon Mackenzie
This study describes the development and validation of an enriched oligonucleotide-microarray platform for Sparus aurata (SAQ) to provide a platform for transcriptomic studies in this species. A transcriptome database was constructed by assembly of gilthead sea bream sequences derived from public repositories of mRNA together with reads from a large collection of expressed sequence tags (EST) from two extensive targeted cDNA libraries characterizing mRNA transcripts regulated by both bacterial and viral challenge...
February 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28165046/high-throughput-sequencing-of-multiple-amplicons-for-barcoding-and-integrative-taxonomy
#12
Perrine Cruaud, Jean-Yves Rasplus, Lillian Jennifer Rodriguez, Astrid Cruaud
Until now, the potential of NGS for the construction of barcode libraries or integrative taxonomy has been seldom realised. Here, we amplified (two-step PCR) and simultaneously sequenced (MiSeq) multiple markers from hundreds of fig wasp specimens. We also developed a workflow for quality control of the data. Illumina and Sanger sequences accumulated in the past years were compared. Interestingly, primers and PCR conditions used for the Sanger approach did not require optimisation to construct the MiSeq library...
February 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28159012/identification-of-micrornas-expressed-in-the-midgut-of-aedes-albopictus-during-dengue-infection
#13
Jianxin Su, Chunxiao Li, Yingmei Zhang, Ting Yan, Xiaojuan Zhu, Minghui Zhao, Dan Xing, Yande Dong, Xiaoxia Guo, Tongyan Zhao
BACKGROUND: The midgut is the first barrier to dengue virus (DENV) infections of mosquitoes and therefore is a major bottleneck for the subsequent development of vector competence. However, the molecular mechanisms responsible for this barrier are unknown. RESULTS: We constructed three small RNA libraries from the midguts of adult Aedes albopictus females that had been fed on either sugar solution, an uninfected blood meal, or a blood meal infected with DENV-2, and112 conserved microRNAs represented by 173 miRNA sequences were identified, with 34 novel microRNAs predicted by Mireap, RNAfold and Sfold software...
February 3, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28158242/de-novo-characterization-of-micrornas-in-oriental-fruit-moth-grapholita-molesta-and-selection-of-reference-genes-for-normalization-of-microrna-expression
#14
Xiu Wang, Yisong Li, Jing Zhang, Qingwen Zhang, Xiaoxia Liu, Zhen Li
MicroRNAs (miRNAs) are a group of endogenous non-coding small RNAs that have critical regulatory functions in almost all known biological processes at the post-transcriptional level in a variety of organisms. The oriental fruit moth Grapholita molesta is one of the most serious pests in orchards worldwide and threatens the production of Rosacea fruits. In this study, a de novo small RNA library constructed from mixed stages of G. molesta was sequenced through Illumina sequencing platform and a total of 536 mature miRNAs consisting of 291 conserved and 245 novel miRNAs were identified...
2017: PloS One
https://www.readbyqxmd.com/read/28152585/enhanced-metal-tolerance-correlates-with-heterotypic-variation-in-spmtl-a-metallothionein-like-protein-from-the-hyperaccumulator-sedum-plumbizincicola
#15
Jia-Shi Peng, Ge Ding, Shuan Meng, Hong-Ying Yi, Ji-Ming Gong
Mechanistic insight into metal hyperaccumulation is largely restricted to Brassicaceae plants, therefore it is of great importance to obtain corresponding knowledge from system outside the Brassicaceae. Here we constructed and screened a cDNA library of the Cd/Zn hyperaccumulator Sedum plumbizincicola, and identified a novel metallothionein-like protein encoding gene SpMTL. SpMTL showed functional similarity to other known MT proteins and also to its orthologues from non-hyperaccumulators. However, 3 additional cysteine residues were observed in SpMTL and appeared to be hyperaccumulator-specific...
February 2, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28138840/pacbio-for-haplotyping-in-gene-families
#16
Wei Zhang, Joachim Messing
The throughput and read length provided by Pacific Bioscience (PacBio) Single Molecule Real Time (SMRT) sequencing platform makes it feasible to construct contiguous, non-chimeric sequences. This is especially useful for genes with repetitive sequences in their gene bodies in gene families. We illustrate the use of PacBio to sequence and assemble hundreds of transcripts of gluten gene families from different cultivars of wheat using sequence from a single SMRT cell. To this end, we barcoded amplicons from different cultivars, then pooled these into one library for sequencing...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28135258/sequencing-thousands-of-single-cell-genomes-with-combinatorial-indexing
#17
Sarah A Vitak, Kristof A Torkenczy, Jimi L Rosenkrantz, Andrew J Fields, Lena Christiansen, Melissa H Wong, Lucia Carbone, Frank J Steemers, Andrew Adey
Single-cell genome sequencing has proven valuable for the detection of somatic variation, particularly in the context of tumor evolution. Current technologies suffer from high library construction costs, which restrict the number of cells that can be assessed and thus impose limitations on the ability to measure heterogeneity within a tissue. Here, we present single-cell combinatorial indexed sequencing (SCI-seq) as a means of simultaneously generating thousands of low-pass single-cell libraries for detection of somatic copy-number variants...
January 30, 2017: Nature Methods
https://www.readbyqxmd.com/read/28130383/large-scale-collection-of-full-length-cdna-and-transcriptome-analysis-in-hevea-brasiliensis
#18
Yuko Makita, Kiaw Kiaw Ng, G Veera Singham, Mika Kawashima, Hideki Hirakawa, Shusei Sato, Ahmad Sofiman Othman, Minami Matsui
Natural rubber has unique physical properties that cannot be replaced by products from other latex-producing plants or petrochemically produced synthetic rubbers. Rubber from Hevea brasiliensis is the main commercial source for this natural rubber that has a cis-polyisoprene configuration. For sustainable production of enough rubber to meet demand elucidation of the molecular mechanisms involved in the production of latex is vital. To this end, we firstly constructed rubber full-length cDNA libraries of RRIM 600 cultivar and sequenced around 20,000 clones by the Sanger method and over 15,000 contigs by Illumina sequencer...
January 27, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28126555/bactericidal-activity-of-fish-galectin-4-derived-membrane-binding-peptide-tagged-with-oligotryptophan
#19
Abirami Arasu, Venkatesh Kumaresan, Munuswamy-Ramanujam Ganesh, Mukesh Pasupuleti, Mariadhas Valan Arasu, Naif Abdullah Al-Dhabi, Jesu Arockiaraj
Galectins belong to the family of galactoside-binding proteins which act as pathogen recognition receptors by recognizing and binding to the carbohydrate present in the bacterial membranes. In this study, a Galectin-4 sequence was identified from the constructed cDNA library of Channa striatus and its structural features were reported. Gene expression analysis revealed that CsGal4 was highly expressed in liver and strongly induced by Epizootic Ulcerative Syndrome (EUS) causing pathogens such as Aphanomyces invadans, Aeromonas hydrophila and a viral analogue, poly I:C...
January 23, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28120312/nitrogen-fixing-bacterial-diversity-in-a-tropical-estuarine-sediments
#20
Jabir Thajudeen, Jesmi Yousuf, Vipindas Puthiya Veetil, Sherin Varghese, Arvind Singh, Mohamed Hatha Abdulla
Microorganisms play a significant role in biogeochemical cycles, especially in the benthic and pelagic ecosystems. Role of environmental parameters in regulating the diversity, distribution and physiology of these microorganisms in tropical marine environment is not well understood. In this study, we have identified dinitrogen (N2) fixing bacterial communities in the sediments by constructing clone libraries of nitrogenase (nifH) gene from four different stations in the Cochin estuary, along the southeastern Arabian Sea...
February 2017: World Journal of Microbiology & Biotechnology
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