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https://www.readbyqxmd.com/read/28432803/sequencing-and-functional-validation-of-the-jgi-brachypodium-distachyon-t-dna-collection
#1
Mon Mandy Hsia, Ronan O'Malley, Amy Cartwright, Rita Nieu, Sean P Gordon, Sandra Kelly, Tina G Williams, Delilah F Wood, Yunjun Zhao, Jennifer Bragg, Mark Jordan, Markus Pauly, Joseph R Ecker, Yong Gu, John P Vogel
Due to a large and growing collection of genomic and experimental resources, Brachypodium distachyon has emerged as a powerful experimental model for the grasses. To add to these resources we sequenced 21,165 T-DNA lines, 15,569 of which were produced in this study. This increased the number of unique insertion sites in the T-DNA collection by 21,078 bringing the overall total to 26,112. Thirty seven percent (9,754) of these insertion sites are within genes (including UTRs and introns) and 28% (7,217) are within 500 bp of a gene...
April 22, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28432783/gene-structure-and-expression-characteristic-of-a-novel-odorant-receptor-gene-cluster-in-the-parasitoid-wasp-microplitis-mediator-hymenoptera-braconidae
#2
S-N Wang, S Shan, Y Zheng, Y Peng, Z-Y Lu, Y-Q Yang, R-J Li, Y-J Zhang, Y-Y Guo
Odorant receptors (ORs) expressed in the antennae of parasitoid wasps are responsible for detection of various lipophilic airborne molecules. In the present study, 107 novel OR genes were identified from Microplitis mediator antennal transcriptome data. Phylogenetic analysis of the set of OR genes from M. mediator and Microplitis demolitor revealed that M. mediator OR (MmedOR) genes can be classified into different subfamilies, and the majority of MmedORs in each subfamily shared high sequence identities and clear orthologous relationships to M...
April 22, 2017: Insect Molecular Biology
https://www.readbyqxmd.com/read/28432412/genotyping-by-sequencing-targeting-of-a-novel-downy-mildew-resistance-gene-pl-20-from-wild-helianthus-argophyllus-for-sunflower-helianthus-annuus-l
#3
G J Ma, S G Markell, Q J Song, L L Qi
Genotyping-by-sequencing revealed a new downy mildew resistance gene, Pl 20 , from wild Helianthus argophyllus located on linkage group 8 of the sunflower genome and closely linked to SNP markers that facilitate the marker-assisted selection of resistance genes. Downy mildew (DM), caused by Plasmopara halstedii, is one of the most devastating and yield-limiting diseases of sunflower. Downy mildew resistance identified in wild Helianthus argophyllus accession PI 494578 was determined to be effective against the predominant and virulent races of P...
April 21, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28432348/white-spot-syndrome-virus-vp28-specific-double-stranded-rna-provides-protection-through-a-highly-focused-sirna-population
#4
Pål Nilsen, Marius Karlsen, Kallaya Sritunyalucksana, Siripong Thitamadee
Several studies have demonstrated that injection of double-stranded RNAs (dsRNA) homologous to mRNA for the white spot syndrome virus (WSSV) viral protein 28 (VP28) can induce protection in shrimp against WSSV through RNA interference (RNAi). In comparison to shrimp injected with either PBS or a green fluorescent protein (GFP) nonspecific dsRNA, we obtained nearly complete protection against WSSV infection in shrimp injected with VP28 dsRNA. Upregulation of host genes associated with small RNA silencing was measured 48 hours post treatment in groups injected with dsRNA, and although the VP28-treated group remained moderately upregulated after challenge with WSSV, many-fold higher induction was observed in both control groups reflecting the ongoing viral infection...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28431281/dengue-virus-replicates-and-accumulates-in-aedes-aegypti-salivary-glands
#5
Vincent Raquin, Louis Lambrechts
Dengue virus (DENV) is an RNA virus transmitted among humans by mosquito vectors, mainly Aedes aegypti. DENV transmission requires viral dissemination from the mosquito midgut to the salivary glands. During this process the virus undergoes several population bottlenecks, which are stochastic reductions in population size that restrict intra-host viral genetic diversity and limit the efficiency of natural selection. Despite the implications for virus transmission and evolution, DENV replication in salivary glands has not been directly demonstrated...
April 18, 2017: Virology
https://www.readbyqxmd.com/read/28431039/genomic-data-for-78-chickens-from-14-populations
#6
Diyan Li, Tiandong Che, Binlong Chen, Shilin Tian, Xuming Zhou, Guolong Zhang, Miao Li, Uma Gaur, Yan Li, Majing Luo, Long Zhang, Zhongxian Xu, Xiaoling Zhao, Huadong Yin, Yan Wang, Long Jin, Qianzi Tang, Huailiang Xu, Mingyao Yang, Rongjia Zhou, Ruiqiang Li, Qing Zhu, Mingzhou Li
Background: Since the domestication of the red jungle fowls ( Gallus gallus ) (dating back to ∼10,000 B.P.) in Asia, domestic chickens ( Gallus gallus domesticus ) have been subjected to the combined effects of natural selection and human-driven artificial selection; this has resulted in marked phenotypic diversity in a number of traits, including behavior, body composition, egg production and skin color. Population genomic variations through diversifying selection have not been fully investigated...
April 18, 2017: GigaScience
https://www.readbyqxmd.com/read/28431021/patterns-of-genome-wide-diversity-and-population-structure-in-the-drosophila-athabasca-species-complex
#7
Karen M Wong Miller, Ryan R Bracewell, Michael B Eisen, Doris Bachtrog
The Drosophila athabasca species complex contains three recently diverged, prezygotically isolated semispecies (Western-Northern, Eastern-A, and Eastern-B) that are distributed across North America and share zones of sympatry. Inferences based on a handful of loci suggest that this complex might be an ideal system for studying the genetics of incipient speciation and the evolution of prezygotic isolating mechanisms, but patterns of differentiation have not been characterized systematically. Here, we assembled a draft genome for D...
April 14, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28430865/unmet-needs-in-the-first-line-treatment-of-follicular-lymphoma
#8
C Casulo, L Nastoupil, N H Fowler, J W Friedberg, C R Flowers
For the majority of patients with newly diagnosed follicular lymphoma (FL), current treatments, while not curative, allow for long remission durations. However, several important needs remain unaddressed. Studies have consistently shown that approximately 20% of patients with FL experience disease progression within 2 years of first-line treatment, and consequently have a 50% risk of death in 5 years. Better characterization of this group of patients at diagnosis may provide insight into those in need of alternate or intensive therapies, facilitate a precision approach to inform clinical trials, and allow for improved patient counseling...
April 18, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28430825/discovery-and-fine-mapping-of-adiposity-loci-using-high-density-imputation-of-genome-wide-association-studies-in-individuals-of-african-ancestry-african-ancestry-anthropometry-genetics-consortium
#9
Maggie C Y Ng, Mariaelisa Graff, Yingchang Lu, Anne E Justice, Poorva Mudgal, Ching-Ti Liu, Kristin Young, Lisa R Yanek, Mary F Feitosa, Mary K Wojczynski, Kristin Rand, Jennifer A Brody, Brian E Cade, Latchezar Dimitrov, Qing Duan, Xiuqing Guo, Leslie A Lange, Michael A Nalls, Hayrettin Okut, Salman M Tajuddin, Bamidele O Tayo, Sailaja Vedantam, Jonathan P Bradfield, Guanjie Chen, Wei-Min Chen, Alessandra Chesi, Marguerite R Irvin, Badri Padhukasahasram, Jennifer A Smith, Wei Zheng, Matthew A Allison, Christine B Ambrosone, Elisa V Bandera, Traci M Bartz, Sonja I Berndt, Leslie Bernstein, William J Blot, Erwin P Bottinger, John Carpten, Stephen J Chanock, Yii-Der Ida Chen, David V Conti, Richard S Cooper, Myriam Fornage, Barry I Freedman, Melissa Garcia, Phyllis J Goodman, Yu-Han H Hsu, Jennifer Hu, Chad D Huff, Sue A Ingles, Esther M John, Rick Kittles, Eric Klein, Jin Li, Barbara McKnight, Uma Nayak, Barbara Nemesure, Adesola Ogunniyi, Andrew Olshan, Michael F Press, Rebecca Rohde, Benjamin A Rybicki, Babatunde Salako, Maureen Sanderson, Yaming Shao, David S Siscovick, Janet L Stanford, Victoria L Stevens, Alex Stram, Sara S Strom, Dhananjay Vaidya, John S Witte, Jie Yao, Xiaofeng Zhu, Regina G Ziegler, Alan B Zonderman, Adebowale Adeyemo, Stefan Ambs, Mary Cushman, Jessica D Faul, Hakon Hakonarson, Albert M Levin, Katherine L Nathanson, Erin B Ware, David R Weir, Wei Zhao, Degui Zhi, Donna K Arnett, Struan F A Grant, Sharon L R Kardia, Olufunmilayo I Oloapde, D C Rao, Charles N Rotimi, Michele M Sale, L Keoki Williams, Babette S Zemel, Diane M Becker, Ingrid B Borecki, Michele K Evans, Tamara B Harris, Joel N Hirschhorn, Yun Li, Sanjay R Patel, Bruce M Psaty, Jerome I Rotter, James G Wilson, Donald W Bowden, L Adrienne Cupples, Christopher A Haiman, Ruth J F Loos, Kari E North
Genome-wide association studies (GWAS) have identified >300 loci associated with measures of adiposity including body mass index (BMI) and waist-to-hip ratio (adjusted for BMI, WHRadjBMI), but few have been identified through screening of the African ancestry genomes. We performed large scale meta-analyses and replications in up to 52,895 individuals for BMI and up to 23,095 individuals for WHRadjBMI from the African Ancestry Anthropometry Genetics Consortium (AAAGC) using 1000 Genomes phase 1 imputed GWAS to improve coverage of both common and low frequency variants in the low linkage disequilibrium African ancestry genomes...
April 21, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28430581/association-between-en1-rs4144782-and-susceptibility-of-knee-osteoarthritis-a-case-control-study
#10
Li Haohuan, Zhang Xiaolong, Cao Yiping, Hu Song, Peng Fei, Zhou Jianlin, Li Jianping
Osteoarthritis (OA) is a complex disease that affects the whole joint, resulting from the combined influence of biomechanical factors and genetic factors. The heritable component for primary OA accounts for about 60% of variation in population liability to the disease. So far, genome-wide association studies (GWAS) and candidate gene studies have established many OA-related loci. However, these findings account for only a rather small fraction of the genetic component. To further reveal the genetic architecture of OA, we conducted this case-control study to explore the association of locus EN1 rs4144782 and knee OA susceptibility in a Chinese population...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430547/enhancing-insights-into-pulmonary-vascular-disease-pvd-through-a-precision-medicine-approach-a-joint-nhlbi-cmref-workshop-report
#11
John H Newman, Stuart Rich, Steven H Abman, John H Alexander, John Barnard, Gerald J Beck, Raymond L Benza, Todd M Bull, Stephen Y Chan, Hyung J Chun, Declan Doogan, Jocelyn Dupuis, Serpil C Erzurum, Robert P Frantz, Mark Geraci, Hunter Gillies, Mark Gladwin, Michael P Gray, Anna R Hemnes, Roy S Herbst, Adrian F Hernandez, Nicholas S Hill, Evelyn M Horn, Kendall Hunter, Zhi-Cheng Jing, Roger Johns, Sanjay Kaul, Steven M Kawut, Tim Lahm, Jane A Leopold, Greg D Lewis, Stephen C Mathai, Vallerie V McLaughlin, Evangelos D Michelakis, Steven D Nathan, William Nichols, Grier Page, Marlene Rabinovitch, Jonathan Rich, Franz Rischard, Sharon Rounds, Sanjiv J Shah, Victor F Tapson, Naomi Lowy, Norman Stockbridge, Gail Weinmann, Lei Xiao
The Division of Lung Diseases of the National Heart, Lung and Blood Institute, (NHLBI) and the Cardiovascular Medical Education and Research Fund (CMREF), held a workshop to discuss to leverage of the anticipated scientific output from the recently launched "Redefining Pulmonary Hypertension (PH) through Pulmonary Vascular Disease Phenomics" (PVDOMICS) program. PVDOMICS is a protocol driven network to analyze PH patient populations to define novel pulmonary vascular disease (PVD) phenotypes. Basic, translational and clinical investigators, patient advocacy organizations, regulatory agencies, and pharmaceutical industry experts discussed the application of precision medicine to PVD clinical trials...
April 21, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28430023/harnessing-effector-triggered-immunity-for-durable-disease-resistance
#12
Meixiang Zhang, Gitta Coaker
Genetic control of plant diseases has traditionally included the deployment of single immune receptors with nucleotide-binding leucine-rich repeat (NLR) domain architecture. These NLRs recognize corresponding pathogen effector proteins inside plant cells, resulting in effector-triggered immunity (ETI). Although ETI triggers robust resistance, deployment of single NLRs can be rapidly overcome by pathogen populations within a single or a few growing seasons. In order to generate more durable disease resistance against devastating plant pathogens, a multi-tiered strategy that incorporates stacked NLRs combined with other sources of disease resistance is necessary...
April 21, 2017: Phytopathology
https://www.readbyqxmd.com/read/28429828/genomic-clustering-of-adaptive-loci-during-parallel-evolution-of-an-australian-wildflower
#13
Federico Roda, Greg M Walter, Rick Nipper, Daniel Ortiz-Barrientos
The buildup of the phenotypic differences that distinguish species has long intrigued biologists. These differences are often inherited as stable polymorphisms that allow the co-segregation of adaptive variation within species, and facilitate the differentiation of complex phenotypes between species. It has been suggested that the clustering of adaptive loci could facilitate this process but evidence is still scarce. Here we used QTL analysis to study the genetic basis of phenotypic differentiation between coastal populations of the Australian wildflower Senecio lautus...
April 21, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28429804/identifying-tagging-snps-for-african-specific-genetic-variation-from-the-african-diaspora-genome
#14
Henry Richard Johnston, Yi-Juan Hu, Jingjing Gao, Timothy D O'Connor, Gonçalo R Abecasis, Genevieve L Wojcik, Christopher R Gignoux, Pierre-Antoine Gourraud, Antoine Lizee, Mark Hansen, Rob Genuario, Dave Bullis, Cindy Lawley, Eimear E Kenny, Carlos Bustamante, Terri H Beaty, Rasika A Mathias, Kathleen C Barnes, Zhaohui S Qin
A primary goal of The Consortium on Asthma among African-ancestry Populations in the Americas (CAAPA) is to develop an 'African Diaspora Power Chip' (ADPC), a genotyping array consisting of tagging SNPs, useful in comprehensively identifying African specific genetic variation. This array is designed based on the novel variation identified in 642 CAAPA samples of African ancestry with high coverage whole genome sequence data (~30× depth). This novel variation extends the pattern of variation catalogued in the 1000 Genomes and Exome Sequencing Projects to a spectrum of populations representing the wide range of West African genomic diversity...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28429538/finding-a-partner-in-the-ocean-molecular-and-evolutionary-bases-of-the-response-to-sexual-cues-in-a-planktonic-diatom
#15
Swaraj Basu, Shrikant Patil, Daniel Mapleson, Monia Teresa Russo, Laura Vitale, Cristina Fevola, Florian Maumus, Raffaella Casotti, Thomas Mock, Mario Caccamo, Marina Montresor, Remo Sanges, Maria Immacolata Ferrante
Microalgae play a major role as primary producers in aquatic ecosystems. Cell signalling regulates their interactions with the environment and other organisms, yet this process in phytoplankton is poorly defined. Using the marine planktonic diatom Pseudo-nitzschia multistriata, we investigated the cell response to cues released during sexual reproduction, an event that demands strong regulatory mechanisms and impacts on population dynamics. We sequenced the genome of P. multistriata and performed phylogenomic and transcriptomic analyses, which allowed the definition of gene gains and losses, horizontal gene transfers, conservation and evolutionary rate of sex-related genes...
April 21, 2017: New Phytologist
https://www.readbyqxmd.com/read/28429458/genomic-evidence-for-population-specific-responses-to-coevolving-parasites-in-a-new-zealand-freshwater-snail
#16
Laura A Bankers, Peter Fields, Kyle E McElroy, Jeffrey L Boore, John M Logsdon, Maurine Neiman
Reciprocal coevolving interactions between hosts and parasites are a primary source of strong selection that can promote rapid and often population- or genotype-specific evolutionary change. These host-parasite interactions are also a major source of disease. Despite their importance, very little is known about the genomic basis of coevolving host-parasite interactions in natural populations, especially in animals. Here, we use gene expression and sequence evolution approaches to take critical steps towards characterizing the genomic basis of interactions between the freshwater snail Potamopyrgus antipodarum and its coevolving sterilizing trematode parasite, Microphallus sp...
April 21, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28429076/-search-for-risk-genes-in-schizophrenia
#17
D Rujescu
BACKGROUND: Schizophrenia is a severe psychiatric disease affecting approximately 0.5-1% of the general population. The relative contribution of genetic factors has been estimated to be 64-81%. OBJECTIVE: This review summarizes recent efforts to identify genetic variants associated with schizophrenia. METHODS: Relevant linkage and candidate genes as well as genome wide association studies, studies on copy number variants and next generation sequencing are presented and discussed...
April 20, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28428977/19th-workshop-of-the-international-stroke-genetics-consortium-april-28-29-2016-boston-massachusetts-usa-2016-001-mri-defined-cerebrovascular-genomics-the-charge-consortium
#18
S Debette, Y Saba, D Vojinovic, X Jian, H Adams, G Chauhan, M Sargurupremraj, S Kaffashian, J Ding, J C Bis, P Nyquist, K Mather, C Van Duijn, L J Launer, M A Ikram, H Schmidt, W T Longstreth, M Fornage, S Seshadri
The CHARGE consortium is an investigator-initiated collaboration to facilitate meta-analyses of genome-wide association studies (GWAS) and genomic analyses based on next generation sequencing (NGS), among multiple large and well-phenotyped population-based cohort studies around the world (http://www.chargeconsortium.com). Within the neuro-CHARGE working group, we are presenting an update of ongoing genomic studies on MRI-markers of cerebrovascular disease. Large population-based studies have shown that the burden of cerebrovascular disease extends far beyond that of clinical stroke...
March 2017: Neurology. Genetics
https://www.readbyqxmd.com/read/28428839/population-genomics-meet-lagrangian-simulations-oceanographic-patterns-and-long-larval-duration-ensure-connectivity-among-paracentrotus-lividus-populations-in-the%C3%A2-adriatic-and-ionian-seas
#19
Marta Paterno, Marcello Schiavina, Giorgio Aglieri, Jamila Ben Souissi, Elisa Boscari, Renato Casagrandi, Aurore Chassanite, Mariachiara Chiantore, Leonardo Congiu, Giuseppe Guarnieri, Claudia Kruschel, Vesna Macic, Ilaria A M Marino, Chiara Papetti, Tomaso Patarnello, Lorenzo Zane, Paco Melià
Connectivity between populations influences both their dynamics and the genetic structuring of species. In this study, we explored connectivity patterns of a marine species with long-distance dispersal, the edible common sea urchin Paracentrotus lividus, focusing mainly on the Adriatic-Ionian basins (Central Mediterranean). We applied a multidisciplinary approach integrating population genomics, based on 1,122 single nucleotide polymorphisms (SNPs) obtained from 2b-RAD in 275 samples, with Lagrangian simulations performed with a biophysical model of larval dispersal...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28428831/cord-blood-hematopoietic-cells-from-preterm-infants-display-altered-dna-methylation-patterns
#20
Olivia M de Goede, Pascal M Lavoie, Wendy P Robinson
BACKGROUND: Premature infants are highly vulnerable to infection. This is partly attributable to the preterm immune system, which differs from that of the term neonate in cell composition and function. Multiple studies have found differential DNA methylation (DNAm) between preterm and term infants' cord blood; however, interpretation of these studies is limited by the confounding factor of blood cell composition. This study evaluates the epigenetic impact of preterm birth in isolated hematopoietic cell populations, reducing the concern of cell composition differences...
2017: Clinical Epigenetics
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