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https://www.readbyqxmd.com/read/28220687/environmental-factors-seven-gwas-identified-susceptibility-loci-and-risk-of-gastric-cancer-and-its-precursors-in-a-chinese-population
#1
Meng Cai, Shuyang Dai, Wanqing Chen, Changfa Xia, Lingeng Lu, Shuguang Dai, Jun Qi, Minjie Wang, Meilin Wang, Lanping Zhou, Fuhua Lei, Tingting Zuo, Hongmei Zeng, Xiaohang Zhao
Gene-environment interactions may increase gastric cancer (GC) risk. Seven susceptibility loci identified by genome-wide association studies (GWASs) suggest that genetic factors play a role in gastric carcinogenesis. Meanwhile, Helicobacter pylori (H. pylori) infection, smoking, and alcohol drinking are also important environmental factors for gastric cancer. However, studies to explore the role of gene-environment interactions in gastric carcinogenesis, and particularly the relationship between the seven susceptibility loci and their potential interactions with H...
February 21, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28212442/ecto-5-nucleotidase-cd73-nt5e-vitamin-d-receptor-and-fgf23-gene-polymorphisms-may-play-a-role-in-the-development-of-calcific-uremic-arteriolopathy-in-dialysis-patients-data-from-the-german-calciphylaxis-registry
#2
Hansjörg Rothe, Vincent Brandenburg, Margot Haun, Barbara Kollerits, Florian Kronenberg, Markus Ketteler, Christoph Wanner
INTRODUCTION: Calciphylaxis/calcific uremic arteriolopathy affects mainly end-stage kidney disease patients but is also associated with malignant disorders such as myeloma, melanoma and breast cancer. Genetic risk factors of calciphylaxis have never been studied before. METHODS: We investigated 10 target genes using a tagging SNP approach: the genes encoding CD73/ ecto-5'-nucleotidase (purinergic pathway), Matrix Gla protein, Fetuin A, Bone Gla protein, VKORC1 (all related to intrinsic calcification inhibition), calcium-sensing receptor, FGF23, Klotho, vitamin D receptor, stanniocalcin 1 (all related to CKD-MBD)...
2017: PloS One
https://www.readbyqxmd.com/read/28202046/highly-predictive-snp-markers-for-efficient-selection-of-the-wheat-leaf-rust-resistance-gene-lr16
#3
Mulualem T Kassa, Frank M You, Colin W Hiebert, Curtis J Pozniak, Pierre R Fobert, Andrew G Sharpe, James G Menzies, D Gavin Humphreys, Nicole Rezac Harrison, John P Fellers, Brent D McCallum, Curt A McCartney
BACKGROUND: Lr16 is a widely deployed leaf rust resistance gene in wheat (Triticum aestivum L.) that is highly effective against the North American Puccinia triticina population when pyramided with the gene Lr34. Lr16 is a seedling leaf rust resistance gene conditioning an incompatible interaction with a distinct necrotic ring surrounding the uredinium. Lr16 was previously mapped to the telomeric region of the short arm of wheat chromosome 2B. The goals of this study were to develop numerous single nucleotide polymorphism (SNP) markers for the Lr16 region and identify diagnostic gene-specific SNP marker assays for marker-assisted selection (MAS)...
February 15, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28194003/lower-levels-of-the-glial-cell-marker-tspo-in-drug-naive-first-episode-psychosis-patients-as-measured-using-pet-and-11-c-pbr28
#4
K Collste, P Plavén-Sigray, H Fatouros-Bergman, P Victorsson, M Schain, A Forsberg, N Amini, S Aeinehband, S Erhardt, C Halldin, L Flyckt, L Farde, S Cervenka
Several lines of evidence are indicative of a role for immune activation in the pathophysiology of schizophrenia. Nevertheless, studies using positron emission tomography (PET) and radioligands for the translocator protein (TSPO), a marker for glial activation, have yielded inconsistent results. Whereas early studies using a radioligand with low signal-to-noise in small samples showed increases in patients, more recent studies with improved methodology have shown no differences or trend-level decreases. Importantly, all patients investigated thus far have been on antipsychotic medication, and as these compounds may dampen immune cell activity, this factor limits the conclusions that can be drawn...
February 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28151915/minor-variant-of-rs-16827043-in-the-iron-regulator-hemojuvelin-gene-hjv-contributes-to-hypertension-the-tamrisk-study
#5
Seppo T Nikkari, Anni-Laura Visto, Kirsi M Määttä, Tarja A Kunnas
It is known that iron overload may lead to an increased risk for many diseases. According to GWAS studies, iron regulatory protein HFE gene variant H63D (rs1799945) was associated with hypertension, an observation which we were able to confirm also in our TAMRISK cohort. Thus, it is possible that abnormalities in iron homeostasis may predispose to hypertension. This prompted us to study whether there is an association between hypertension and another iron overload-associated gene, hemojuvelin (HJV), which has 2 common polymorphic sites (rs 16827043, rs7536827)...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28116459/homoeologous-recombination-based-transfer-and-molecular-cytogenetic-mapping-of-powdery-mildew-resistant-gene-pm57-from-aegilops-searsii-into-wheat
#6
Wenxuan Liu, Dal-Hoe Koo, Qing Xia, Chunxin Li, Fuqiang Bai, Yuli Song, Bernd Friebe, Bikram S Gill
Pm57, a novel resistant gene against powdery mildew, was transferred into common wheat from Ae. searsi and further mapped to 2S (s) #1L at an interval of FL0.75 to FL0.87. Powdery mildew, caused by the fungus Blumeria graminis f. sp. tritici, is one of the most severe foliar diseases of wheat causing reduction in grain yield and quality. Host plant resistance is the most effective and environmentally safe approach to control this disease. Tests of a set of Chinese Spring-Ae. searsii (S(s)S(s), 2n = 2x = 14) Feldman & Kislev ex K...
January 23, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28111522/towards-new-sources-of-resistance-to-the-currant-lettuce-aphid-nasonovia-ribisnigri
#7
Peter G Walley, Gemma Hough, Jonathan D Moore, John Carder, Marian Elliott, Andrew Mead, Julie Jones, Graham Teakle, Guy Barker, Vicky Buchanan-Wollaston, Paul Hand, David Pink, Rosemary Collier
Domesticated lettuce varieties encompass much morphological variation across a range of crop type groups, with large collections of cultivars and landrace accessions maintained in genebanks. Additional variation not captured during domestication, present in ancestral wild relatives, represents a potentially rich source of alleles that can deliver to sustainable crop production. However, these large collections are difficult and costly to screen for many agronomically important traits. In this paper, we describe the generation of a diversity collection of 96 lettuce and wild species accessions that are amenable to routine phenotypic analysis and their genotypic characterization with a panel of 682 newly developed expressed sequence tag (EST)-linked KASP™ single nucleotide polymorphism (SNP) markers that are anchored to the draft Lactuca sativa genome assembly...
2017: Molecular Breeding: New Strategies in Plant Improvement
https://www.readbyqxmd.com/read/28072873/association-study-with-77-snps-confirms-the-robust-role-for-the-rs10830963-g-of-mtnr1b-variant-and-identifies-two-novel-associations-in-gestational-diabetes-mellitus-development
#8
Klara Rosta, Zahra Al-Aissa, Orsolya Hadarits, Jürgen Harreiter, Ákos Nádasdi, Fanni Kelemen, Dagmar Bancher-Todesca, Zsolt Komlósi, László Németh, János Rigó, István Sziller, Anikó Somogyi, Alexandra Kautzky-Willer, Gábor Firneisz
CONTEXT: Genetic variation in human maternal DNA contributes to the susceptibility for development of gestational diabetes mellitus (GDM). OBJECTIVE: We assessed 77 maternal single nucleotide gene polymorphisms (SNPs) for associations with GDM or plasma glucose levels at OGTT in pregnancy. METHODS: 960 pregnant women (after dropouts 820: case/control: m99'WHO: 303/517, IADPSG: 287/533) were enrolled in two countries into this case-control study...
2017: PloS One
https://www.readbyqxmd.com/read/28031244/fine-mapping-of-ur-3-a-historically-important-rust-resistance-locus-in-common-bean
#9
Oscar P Hurtado-Gonzales, Giseli Valentini, Thiago A S Gilio, Alexandre M Martins, Qijian Song, Marcial A Pastor-Corrales
Bean rust, caused by Uromyces appendiculatus, is a devastating disease of common bean (Phaseolus vulgaris) in the Americas and Africa. The historically important Ur-3 gene confers resistance to many races of the highly variable bean rust pathogen that overcome other rust resistance genes. Existing molecular markers tagging Ur-3 for use in marker assisted selection produce false results. We describe here the fine mapping of the Ur-3 locus for the development of highly accurate markers linked to Ur-3 An F2 population from the cross Pinto 114 (susceptible) × Aurora (resistant with Ur-3) was evaluated for its reaction to four different races of U...
December 27, 2016: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/27893808/common-polymorphisms-in-the-5-lipoxygenase-pathway-and-risk-of-incident-myocardial-infarction-a-danish-case-cohort-study
#10
Anders Gammelmark, Michael S Nielsen, Søren Lundbye-Christensen, Anne Tjønneland, Erik B Schmidt, Kim Overvad
BACKGROUND: The 5-lipoxygenase pathway (5-LOX) has been implicated in the development of cardiovascular disease and studies have suggested that genetic polymorphisms related to key enzymes in this pathway may confer risk of myocardial infarction (MI). This study investigated the association of pre-selected genetic polymorphisms in four candidate genes of 5-LOX (arachidonate 5-lipoxygenase and its activating protein (ALOX-5 and FLAP), leukotriene A4 hydroxylase (LTA4-H) and leukotriene C4 synthase (LTC4-S)) with incident MI...
2016: PloS One
https://www.readbyqxmd.com/read/27872268/consistent-functional-connectivity-alterations-in-schizophrenia-spectrum-disorder-a-multisite-study
#11
Kristina C Skåtun, Tobias Kaufmann, Nhat Trung Doan, Dag Alnæs, Aldo Córdova-Palomera, Erik G Jönsson, Helena Fatouros-Bergman, Lena Flyckt, Ingrid Melle, Ole A Andreassen, Ingrid Agartz, Lars T Westlye
Schizophrenia (SZ) is a severe mental illness with high heritability and complex etiology. Mounting evidence from neuroimaging has implicated disrupted brain network connectivity in the pathophysiology. However, previous findings are inconsistent, likely due to a combination of methodological and clinical variability and relatively small sample sizes. Few studies have used a data-driven approach for characterizing pathological interactions between regions in the whole brain and evaluated the generalizability across independent samples...
November 21, 2016: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/27775500/molecular-mapping-of-stem-rust-resistance-loci-effective-against-the-ug99-race-group-of-the-stem-rust-pathogen-and-validation-of-a-single-nucleotide-polymorphism-marker-linked-to-stem-rust-resistance-gene-sr28
#12
E M Babiker, T C Gordon, S Chao, M N Rouse, R Wanyera, M Acevedo, G Brown-Guedira, J M Bonman
Wheat landrace PI 177906 has seedling resistance to stem rust caused by Puccinia graminis f. sp. tritici races TTKSK, TTKST, and BCCBC and field resistance to the Ug99 race group. Parents, 140 recombinant inbred lines, and 138 double haploid (DH) lines were evaluated for seedling resistance to races TTKSK and BCCBC. Parents and the DH population were evaluated for field resistance to Ug99 in Kenya. The 90K wheat single nucleotide polymorphism (SNP) genotyping platform was used to genotype the parents and populations...
February 2017: Phytopathology
https://www.readbyqxmd.com/read/27744491/qtl-mapping-identifies-a-major-locus-for-resistance-in-wheat-to-sunn-pest-eurygaster-integriceps-feeding-at-the-vegetative-growth-stage
#13
L C Emebiri, M-K Tan, M El-Bouhssini, O Wildman, A Jighly, W Tadesse, F C Ogbonnaya
This research provides the first report of a major locus controlling wheat resistance to Sunn pest. It developed and validated SNP markers that will be useful for marker-assisted selection. Sunn pest (Eurygaster integriceps Puton) is the most destructive insect pest of bread wheat and durum wheat in West and Central Asia and East Europe. Breeding for resistance at the vegetative stage of growth is vital in reducing the damage caused by overwintered adult populations that feed on shoot and leaves of seedlings, and in reducing the next generation of pest populations (nymphs and adults), which can cause damage to grain quality by feeding on spikes...
February 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/27699767/glucuronic-acid-epimerase-glce-variant-rs3865014-a-g-is-associated-with-bmi-blood-hemoglobin-hypertension-and-cerebrovascular-events-the-tamrisk-study
#14
Tarja Kunnas, Tiina Solakivi, Kirsi Määttä, Seppo T Nikkari
Heparan sulfate proteoglycans modulate many physiological systems, and genes responsible for proteoglycan assembly and disassembly may affect their interaction. We sought to determine whether polymorphisms of the glucuronic acid epimerase (GLCE) rs3865014 and sulfatase-2 (SULF2) rs2281279, genes coding for enzymes participating in heparan sulfate side chain activity, associate with hypertension, selected cardiometabolic risk factors and cardiovascular events in the Tampere adult population cardiovascular risk study...
November 2016: Annals of Human Genetics
https://www.readbyqxmd.com/read/27676181/multiple-minor-qtls-are-responsible-for-fusarium-head-blight-resistance-in-chinese-wheat-landrace-haiyanzhong
#15
Jin Cai, Shan Wang, Tao Li, Guorong Zhang, Guihua Bai
Fusarium head blight (FHB), caused by Fusarium graminearum Schwabe, is a devastating disease in wheat (Triticum aestivum L.). Use of host resistance is one of the most effective strategies to minimize the disease damage. Haiyanzhong (HYZ) is a Chinese wheat landrace that shows a high level of resistance to FHB spread within a spike (type II resistance). To map the quantitative trait loci (QTLs) in HYZ and identify markers tightly linked to the QTLs for FHB resistance, a population of 172 recombinant inbred lines (RILs) from a cross between HYZ and Wheaton (FHB susceptible) was genotyped using simple sequence repeats (SSRs) and single-nucleotide polymorphisms (SNPs) derived from genotyping-by-sequencing (GBS), and evaluated for percentage of symptomatic spikelets (PSSs) per spike in three greenhouse experiments...
2016: PloS One
https://www.readbyqxmd.com/read/27669430/identification-of-genes-potentially-associated-with-the-fertility-instability-of-s-type-cytoplasmic-male-sterility-in-maize-via-bulked-segregant-rna-seq
#16
Aiguo Su, Wei Song, Jinfeng Xing, Yanxin Zhao, Ruyang Zhang, Chunhui Li, Minxiao Duan, Meijie Luo, Zi Shi, Jiuran Zhao
S-type cytoplasmic male sterility (CMS-S) is the largest group among the three major types of CMS in maize. CMS-S exhibits fertility instability as a partial fertility restoration in a specific nuclear genetic background, which impedes its commercial application in hybrid breeding programs. The fertility instability phenomenon of CMS-S is controlled by several minor quantitative trait locus (QTLs), but not the major nuclear fertility restorer (Rf3). However, the gene mapping of these minor QTLs and the molecular mechanism of the genetic modifications are still unclear...
2016: PloS One
https://www.readbyqxmd.com/read/27665367/the-eyespot-resistance-genes-pch1-and-pch2-of-wheat-are-not-homoeoloci
#17
M Pasquariello, J Ham, C Burt, J Jahier, S Paillard, C Uauy, P Nicholson
Phenotyping and mapping data reveal that chromosome intervals containing eyespot resistance genes Pch1 and Pch2 on 7D and 7A, respectively, do not overlap, and thus, these genes are not homoeloci. Eyespot is a stem-base fungal disease of cereals growing in temperate regions. Two main resistances are currently available for use in wheat. Pch1 is a potent single major gene transferred to wheat from Aegilops ventricosa and located on the distal end of chromosome 7D. Pch2, a moderate resistance deriving from Cappelle Desprez, is located at the end of 7AL...
January 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/27607184/tryptophan-metabolism-along-the-kynurenine-pathway-downstream-of-toll-like-receptor-stimulation-in-peripheral-monocytes
#18
F Orhan, M Bhat, K Sandberg, S Ståhl, F Piehl, C Svensson, S Erhardt, L Schwieler
Tryptophan degradation along the kynurenine pathway is of central importance for the immune function. Toll-like receptors (TLRs), representing the first line of immune defence against pathogens, are expressed in various cell types. The most abundant expression is found on monocytes, macrophages and dendritic cells. The aim of this study was to investigate whether stimulation with different TLR ligands induces the kynurenine pathway in human peripheral monocytes. Cell supernatants were analysed using a liquid chromatography/mass spectrometry to measure kynurenine, kynurenic acid (KYNA), quinolinic acid (QUIN) and tryptophan...
November 2016: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/27606429/single-nucleotide-polymorphism-discovery-in-bovine-pituitary-gland-using-rna-seq-technology
#19
Chandra Shekhar Pareek, Rafał Smoczyński, Haja N Kadarmideen, Piotr Dziuba, Paweł Błaszczyk, Marcin Sikora, Paulina Walendzik, Tomasz Grzybowski, Mariusz Pierzchała, Jarosław Horbańczuk, Agnieszka Szostak, Magdalena Ogluszka, Lech Zwierzchowski, Urszula Czarnik, Leyland Fraser, Przemysław Sobiech, Krzysztof Wąsowicz, Brian Gelfand, Yaping Feng, Dibyendu Kumar
Examination of bovine pituitary gland transcriptome by strand-specific RNA-seq allows detection of putative single nucleotide polymorphisms (SNPs) within potential candidate genes (CGs) or QTLs regions as well as to understand the genomics variations that contribute to economic trait. Here we report a breed-specific model to successfully perform the detection of SNPs in the pituitary gland of young growing bulls representing Polish Holstein-Friesian (HF), Polish Red, and Hereford breeds at three developmental ages viz...
2016: PloS One
https://www.readbyqxmd.com/read/27581540/fine-mapping-of-the-stem-rust-resistance-gene-srta10187
#20
Andrew T Wiersma, Linda K Brown, Elizabeth I Brisco, Tiffany L Liu, Kevin L Childs, Jesse A Poland, Sunish K Sehgal, Eric L Olson
SrTA10187 was fine-mapped to a 1.1 cM interval, candidate genes were identified in the region of interest, and molecular markers were developed for marker-assisted selection and Sr gene pyramiding. Stem rust (Puccinia graminis f. sp. tritici, Pgt) races belonging to the Ug99 (TTKSK) race group pose a serious threat to global wheat (Triticum aestivum L.) production. To improve Pgt host resistance, the Ug99-effective resistance gene SrTA10187 previously identified in Aegilops tauschii Coss. was introgressed into wheat, and mapped to the short arm of wheat chromosome 6D...
December 2016: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
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