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https://www.readbyqxmd.com/read/28726763/cloning-and-characterization-of-thshrs-and-thscr-transcription-factors-in-taxodium-hybrid-zhongshanshan-406
#1
Zhiquan Wang, Yunlong Yin, Jianfeng Hua, Wencai Fan, Chaoguang Yu, Lei Xuan, Fangyuan Yu
Among the GRAS family of transcription factors, SHORT ROOT (SHR) and SCARECROW (SCR) are key regulators of the formation of root tissues. In this study, we isolated and characterized two genes encoding SHR proteins and one gene encoding an SCR protein: ThSHR1 (Accession Number MF045148), ThSHR2 (Accession Number MF045149) and ThSCR (Accession Number MF045152) in the adventitious roots of Taxodium hybrid 'Zhongshanshan'. Gene structure analysis indicated that ThSHR1, ThSHR2 and ThSCR are all intron free. Multiple protein sequence alignments showed that each of the corresponding proteins, ThSHR1, ThSHR2 and ThSCR, contained five well-conserved domains: leucine heptad repeat I (LHRI), the VHIID motif, leucine heptad repeat II (LHR II), the PFYRE motif, and the SAW motif...
July 20, 2017: Genes
https://www.readbyqxmd.com/read/28726715/overexpression-of-the-osimp-gene-increases-the-accumulation-of-inositol-and-confers-enhanced-cold-tolerance-in-tobacco-through-modulation-of-the-antioxidant-enzymes-activities
#2
Rong-Xiang Zhang, Li-Jun Qin, De-Gang Zhao
Inositol is a cyclic polyol that is involved in various physiological processes, including signal transduction and stress adaptation in plants. l-myo-inositol monophosphatase (IMPase) is one of the metal-dependent phosphatase family members and catalyzes the last reaction step of biosynthesis of inositol. Although increased IMPase activity induced by abiotic stress has been reported in chickpea plants, the role and regulation of the IMP gene in rice (Oryza sativa L.) remains poorly understood. In the present work, we obtained a full-length cDNA sequence coding IMPase in the cold tolerant rice landraces in Gaogonggui, which is named as OsIMP...
July 20, 2017: Genes
https://www.readbyqxmd.com/read/28718817/time-to-spread-your-wings-a-review-of-the-avian-ancient-dna-field
#3
REVIEW
Alicia Grealy, Nicolas J Rawlence, Michael Bunce
Ancient DNA (aDNA) has the ability to inform the evolutionary history of both extant and extinct taxa; however, the use of aDNA in the study of avian evolution is lacking in comparison to other vertebrates, despite birds being one of the most species-rich vertebrate classes. Here, we review the field of "avian ancient DNA" by summarising the past three decades of literature on this topic. Most studies over this time have used avian aDNA to reconstruct phylogenetic relationships and clarify taxonomy based on the sequencing of a few mitochondrial loci, but recent studies are moving toward using a comparative genomics approach to address developmental and functional questions...
July 18, 2017: Genes
https://www.readbyqxmd.com/read/28714907/genetic-contribution-to-alcohol-dependence-investigation-of-a-heterogeneous-german-sample-of-individuals-with-alcohol-dependence-chronic-alcoholic-pancreatitis-and-alcohol-related-cirrhosis
#4
Jens Treutlein, Josef Frank, Fabian Streit, Céline S Reinbold, Dilafruz Juraeva, Franziska Degenhardt, Liz Rietschel, Stephanie H Witt, Andreas J Forstner, Monika Ridinger, Jana Strohmaier, Norbert Wodarz, Helene Dukal, Jerome C Foo, Per Hoffmann, Stefan Herms, Stefanie Heilmann-Heimbach, Michael Soyka, Wolfgang Maier, Wolfgang Gaebel, Norbert Dahmen, Norbert Scherbaum, Bertram Müller-Myhsok, Susanne Lucae, Marcus Ising, Felix Stickel, Thomas Berg, Ulla Roggenbuck, Karl-Heinz Jöckel, Henrike Scholz, Ulrich S Zimmermann, Stephan Buch, Wolfgang H Sommer, Rainer Spanagel, Benedikt Brors, Sven Cichon, Karl Mann, Falk Kiefer, Jochen Hampe, Jonas Rosendahl, Markus M Nöthen, Marcella Rietschel
The present study investigated the genetic contribution to alcohol dependence (AD) using genome-wide association data from three German samples. These comprised patients with: (i) AD; (ii) chronic alcoholic pancreatitis (ACP); and (iii) alcohol-related liver cirrhosis (ALC). Single marker, gene-based, and pathway analyses were conducted. A significant association was detected for the ADH1B locus in a gene-based approach (puncorrected = 1.2 × 10(-6); pcorrected = 0.020). This was driven by the AD subsample...
July 17, 2017: Genes
https://www.readbyqxmd.com/read/28708071/evolutionary-origins-of-cancer-driver-genes-and-implications-for-cancer-prognosis
#5
Xin-Yi Chu, Ling-Han Jiang, Xiong-Hui Zhou, Ze-Jia Cui, Hong-Yu Zhang
The cancer atavistic theory suggests that carcinogenesis is a reverse evolution process. It is thus of great interest to explore the evolutionary origins of cancer driver genes and the relevant mechanisms underlying the carcinogenesis. Moreover, the evolutionary features of cancer driver genes could be helpful in selecting cancer biomarkers from high-throughput data. In this study, through analyzing the cancer endogenous molecular networks, we revealed that the subnetwork originating from eukaryota could control the unlimited proliferation of cancer cells, and the subnetwork originating from eumetazoa could recapitulate the other hallmarks of cancer...
July 14, 2017: Genes
https://www.readbyqxmd.com/read/28704921/eys-mutations-causing-autosomal-recessive-retinitis-pigmentosa-changes-of-retinal-structure-and-function-with-disease-progression
#6
David B McGuigan, Elise Heon, Artur V Cideciyan, Rinki Ratnapriya, Monica Lu, Alexander Sumaroka, Alejandro J Roman, Vaishnavi Batmanabane, Alexandra V Garafalo, Edwin M Stone, Anand Swaroop, Samuel G Jacobson
Mutations in the EYS (eyes shut homolog) gene are a common cause of autosomal recessive (ar) retinitis pigmentosa (RP). Without a mammalian model of human EYS disease, there is limited understanding of details of disease expression and rates of progression of the retinal degeneration. We studied clinically and with chromatic static perimetry, spectral-domain optical coherence tomography (OCT), and en face autofluoresence imaging, a cohort of 15 patients (ages 12-51 at first visit), some of whom had longitudinal data of function and structure...
July 12, 2017: Genes
https://www.readbyqxmd.com/read/28686183/development-and-evaluation-of-a-novel-set-of-est-ssr-markers-based-on-transcriptome-sequences-of-black-locust-robinia-pseudoacacia-l
#7
Qi Guo, Jin-Xing Wang, Li-Zhuo Su, Wei Lv, Yu-Han Sun, Yun Li
Black locust (Robinia pseudoacacia L. of the family Fabaceae) is an ecologically and economically important deciduous tree. However, few genomic resources are available for this forest species, and few effective expressed sequence tag-derived simple sequence repeat (EST-SSR) markers have been developed to date. In this study, paired-end sequencing was used to sequence transcriptomes of R. pseudoacacia by the Illumina HiSeq TM2000 platform, and EST-SSR loci were identified by de novo assembly. Furthermore, a total of 1697 primer pairs were successfully designed, from which 286 primers met the selection screening criteria; 94 pairs were randomly selected and tested for validation using polymerase chain reaction amplification...
July 7, 2017: Genes
https://www.readbyqxmd.com/read/28686177/the-telomeric-complex-and-metabolic-disease
#8
REVIEW
Henriette Kirchner, Fozia Shaheen, Hannes Kalscheuer, Sebastian M Schmid, Henrik Oster, Hendrik Lehnert
The attrition of telomeres is believed to be a key event not only in mammalian aging, but also in disturbed nutrient sensing, which could lead to numerous metabolic dysfunctions. The current debate focuses mainly on the question whether telomere shortening, e.g., as a heritable trait, may act as a cause or rather represents a consequence of such chronic diseases. This review discusses the damaging events that ultimately may lead or contribute to telomere shortening and can be associated with metabolic diseases...
July 7, 2017: Genes
https://www.readbyqxmd.com/read/28665322/pre-replicative-repair-of-oxidized-bases-maintains-fidelity-in-mammalian-genomes-the-cowcatcher-role-of-neil1-dna-glycosylase
#9
Suganya Rangaswamy, Arvind Pandey, Sankar Mitra, Muralidhar L Hegde
Genomic fidelity in the humans is continuously challenged by genotoxic reactive oxygen species (ROS) generated both endogenously during metabolic processes, and by exogenous agents. Mispairing of most ROS-induced oxidized base lesions during DNA replication induces mutations. Although bulky base adducts induced by ultraviolet light and other environmental mutagens block replicative DNA polymerases, most oxidized base lesions do not block DNA synthesis. In 8-oxo-G:A mispairs generated by the incorporation of A opposite unrepaired 8-oxo-G, A is removed by MutYH (MYH) for post-replicative repair, and other oxidized base lesions must be repaired prior to replication in order to prevent mutation fixation...
June 30, 2017: Genes
https://www.readbyqxmd.com/read/28665315/myc-modulation-around-the-cdk2-p27-skp2-axis
#10
REVIEW
Per Hydbring, Alina Castell, Lars-Gunnar Larsson
MYC is a pleiotropic transcription factor that controls a number of fundamental cellular processes required for the proliferation and survival of normal and malignant cells, including the cell cycle. MYC interacts with several central cell cycle regulators that control the balance between cell cycle progression and temporary or permanent cell cycle arrest (cellular senescence). Among these are the cyclin E/A/cyclin-dependent kinase 2 (CDK2) complexes, the CDK inhibitor p27(KIP1) (p27) and the E3 ubiquitin ligase component S-phase kinase-associated protein 2 (SKP2), which control each other by forming a triangular network...
June 30, 2017: Genes
https://www.readbyqxmd.com/read/28657581/bacillus-amyloliquefaciens-say09-increases-cadmium-resistance-in-plants-by-activation-of-auxin-mediated-signaling-pathways
#11
Cheng Zhou, Lin Zhu, Zhongyou Ma, Jianfei Wang
Without physical contact with plants, certain plant growth-promoting rhizobacteria (PGPR) can release volatile organic compounds (VOCs) to regulate nutrient acquisition and induce systemic immunity in plants. However, whether the PGPR-emitted VOCs can induce cadmium (Cd) tolerance of plants and the underlying mechanisms remain elusive. In this study, we probed the effects of Bacillus amyloliquefaciens (strain SAY09)-emitted VOCs on the growth of Arabidopsis plants under Cd stress. SAY09 exposure alleviates Cd toxicity in plants with increased auxin biosynthesis...
June 28, 2017: Genes
https://www.readbyqxmd.com/read/28653981/the-role-of-replication-associated-repair-factors-on-r-loops
#12
REVIEW
Vaibhav Bhatia, Emilia Herrera-Moyano, Andrés Aguilera, Belén Gómez-González
The nascent RNA can reinvade the DNA double helix to form a structure termed the R-loop, where a single-stranded DNA (ssDNA) is accompanied by a DNA-RNA hybrid. Unresolved R-loops can impede transcription and replication processes and lead to genomic instability by a mechanism still not fully understood. In this sense, a connection between R-loops and certain chromatin markers has been reported that might play a key role in R-loop homeostasis and genome instability. To counteract the potential harmful effect of R-loops, different conserved messenger ribonucleoprotein (mRNP) biogenesis and nuclear export factors prevent R-loop formation, while ubiquitously-expressed specific ribonucleases and DNA-RNA helicases resolve DNA-RNA hybrids...
June 27, 2017: Genes
https://www.readbyqxmd.com/read/28644393/mutations-in-the-genes-for-interphotoreceptor-matrix-proteoglycans-impg1-and-impg2-in-patients-with-vitelliform-macular-lesions
#13
Caroline Brandl, Heidi L Schulz, Peter Charbel Issa, Johannes Birtel, Richard Bergholz, Clemens Lange, Claudia Dahlke, Ditta Zobor, Bernhard H F Weber, Heidi Stöhr
A significant portion of patients diagnosed with vitelliform macular dystrophy (VMD) do not carry causative mutations in the classic VMD genes BEST1 or PRPH2. We therefore performed a mutational screen in a cohort of 106 BEST1/PRPH2-negative VMD patients in two genes encoding secreted interphotoreceptor matrix proteoglycans-1 and -2 (IMPG1 and IMPG2). We identified two novel mutations in IMPG1 in two simplex VMD cases with disease onset in their early childhood, a heterozygous p.(Leu238Pro) missense mutation and a homozygous c...
June 23, 2017: Genes
https://www.readbyqxmd.com/read/28635663/assessing-genetic-diversity-and-population-differentiation-of-colored-calla-lily-zantedeschia-hybrid-for-an-efficient-breeding-program
#14
Zunzheng Wei, Huali Zhang, Yi Wang, Youli Li, Min Xiong, Xian Wang, Di Zhou
Plastome-genome incompatibility (PGI) is prevalent in several plants including the Zantedeschia species, a worldwide commercial flower crop native to South Africa. Generally, hybrids suffering from PGI appear less vigorous and more susceptible than normal plants. Previous reports revealed that the PGI level in interspecific hybrids is correlated with the relatedness of the parental species in the genus Zantedeschia. To provide a basis for utilizing and improving resources in breeding programs, a total of 117 accessions of colored calla lily (Zantedeschia hybrid), collected from New Zealand, the Netherlands and the United States, were genotyped using 31 transferable expressed sequence tags-simple sequence repeats (EST-SSR) markers from the white calla lily (Zantedeschia aethiopica)...
June 21, 2017: Genes
https://www.readbyqxmd.com/read/28635635/identifying-bird-remains-using-ancient-dna-barcoding
#15
Love Dalén, Vendela K Lagerholm, Johan A A Nylander, Nick Barton, Zbigniew M Bochenski, Teresa Tomek, David Rudling, Per G P Ericson, Martin Irestedt, John R Stewart
Bird remains that are difficult to identify taxonomically using morphological methods, are common in the palaeontological record. Other types of challenging avian material include artefacts and food items from endangered taxa, as well as remains from aircraft strikes. We here present a DNA-based method that enables taxonomic identification of bird remains, even from material where the DNA is heavily degraded. The method is based on the amplification and sequencing of two short variable parts of the 16S region in the mitochondrial genome...
June 21, 2017: Genes
https://www.readbyqxmd.com/read/28635624/effects-of-type-1-diabetes-risk-alleles-on-immune-cell-gene-expression
#16
REVIEW
Ramesh Ram, Grant Morahan
Genetic studies have identified 61 variants associated with the risk of developing Type 1 Diabetes (T1D). The functions of most of the non-HLA (Human Leukocyte Antigen) genetic variants remain unknown. We found that only 16 of these risk variants could potentially be linked to a protein-coding change. Therefore, we investigated whether these variants affected susceptibility by regulating changes in gene expression. To do so, we examined whole transcriptome profiles of 600 samples from the Type 1 Diabetes Genetics Consortium (T1DGC)...
June 21, 2017: Genes
https://www.readbyqxmd.com/read/28632168/a-comparative-study-of-the-structural-dynamics-of-four-terminal-uridylyl-transferases
#17
Kevin J Cheng, Özlem Demir, Rommie E Amaro
African trypanosomiasis occurs in 36 countries in sub-Saharan Africa with 10,000 reported cases annually. No definitive remedy is currently available and if left untreated, the disease becomes fatal. Structural and biochemical studies of trypanosomal terminal uridylyl transferases (TUTases) demonstrated their functional role in extensive uridylate insertion/deletion of RNA. Trypanosoma brucei RNA Editing TUTase 1 (TbRET1) is involved in guide RNA 3' end uridylation and maturation, while TbRET2 is responsible for U-insertion at RNA editing sites...
June 20, 2017: Genes
https://www.readbyqxmd.com/read/28632161/endogenous-retroviral-insertions-indicate-a-secondary-introduction-of-domestic-sheep-lineages-to-the-caucasus-and-central-asia-between-the-bronze-and-iron-age
#18
Oskar Schroeder, Norbert Benecke, Kai Frölich, Zuogang Peng, Kai Kaniuth, Leonid Sverchkov, Sabine Reinhold, Andrey Belinskiy, Arne Ludwig
Sheep were one of the first livestock species domesticated by humans. After initial domestication in the Middle East they were spread across Eurasia. The modern distribution of endogenous Jaagsiekte sheep retrovirus insertions in domestic sheep breeds suggests that over the course of millennia, successive introductions of improved lineages and selection for wool quality occurred in the Mediterranean region and most of Asia. Here we present a novel ancient DNA approach using data of endogenous retroviral insertions in Bronze and Iron Age domestic sheep from the Caucasus and Pamir mountain areas...
June 20, 2017: Genes
https://www.readbyqxmd.com/read/28621722/comparative-analysis-of-genome-wide-dna-methylation-profiles-for-the-genic-male-sterile-cabbage-line-01-20s-and-its-maintainer-line
#19
Fengqing Han, Xiaoli Zhang, Xing Liu, Henan Su, Congcong Kong, Zhiyuan Fang, Limei Yang, Mu Zhuang, Yangyong Zhang, Yumei Liu, Zhansheng Li, Honghao Lv
Methylation modifications play an important role in multiple biological processes. Several studies have reported altered methylation patterns in male sterile plants such as rice and wheat, but little is known about the global methylation profiles and their possible roles in the cabbage (Brassicaoleracea) male sterile line. In this study, single-base-resolution bisulfite sequencing (BS-Seq) was adopted to identify the pattern and degree of cytosine methylation in the male sterile line 01-20S and its near-isogenic fertile line 01-20F...
June 16, 2017: Genes
https://www.readbyqxmd.com/read/28621718/using-small-rna-seq-data-to-detect-sirna-duplexes-induced-by-plant-viruses
#20
Xiaoran Niu, Yu Sun, Ze Chen, Rugang Li, Chellappan Padmanabhan, Jishou Ruan, Jan F Kreuze, KaiShu Ling, ZhangJun Fei, Shan Gao
Small interfering RNA (siRNA) duplexes are short (usually 21 to 24 bp) double-stranded RNAs (dsRNAs) with several overhanging nucleotides at both 5'- and 3'-ends. It has been found that siRNA duplexes bind the RNA-induced silencing complex (RISC) and cleave the sense strands with endonucleases. In this study, for the first time, we detected siRNA duplexes induced by plant viruses on a large scale using next-generation sequencing (NGS) data. In addition, we used the detected 21 nucleotide (nt) siRNA duplexes with 2 nt overhangs to construct a dataset for future data mining...
June 16, 2017: Genes
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