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https://www.readbyqxmd.com/read/28724074/high-resolution-genetic-and-physical-mapping-of-the-eastern-filbert-blight-resistance-region-in-jefferson-hazelnut-corylus-avellana-l
#1
Vidyasagar Sathuvalli, Shawn A Mehlenbacher, David C Smith
Eastern filbert blight (EFB), caused by the pyrenomycete (Peck) E. Müller, is a devastating disease of European hazelnut ( L) in the US Pacific Northwest. A dominant allele at a single locus from the obsolete pollenizer 'Gasaway' confers a high level of resistance to EFB. To identify the gene responsible for resistance, we initiated map-based cloning efforts in a population of 1488 seedlings that segregated for resistance. Chromosome walking was initiated using primers designed from eight previously identified random amplified polymorphic DNA markers linked to resistance...
July 2017: Plant Genome
https://www.readbyqxmd.com/read/28720270/cancer-through-black-eyes-the-views-of-uk-based-black-men-towards-cancer-a-constructivist-grounded-theory-study
#2
Betselot Mulugeta, Susan Williamson, Rob Monks, Thomas Hack, Kinta Beaver
PURPOSE: Little is known about black African (BA) and black African-Caribbean (BAC) men's views towards cancer; yet culture and acculturation can contribute to the way in which people understand, explain and develop their attitudes towards cancer. Hence, cancer prevention and early detection strategies may not be sensitive to United Kingdom (UK)-based black men's views, affecting their awareness of risk factors and early detection services. This study explored the views of UK-based BA and BAC men towards cancer...
August 2017: European Journal of Oncology Nursing: the Official Journal of European Oncology Nursing Society
https://www.readbyqxmd.com/read/28719910/correlating-the-genetic-and-physical-map-of-barley-chromosome-3h-revealed-limitations-of-the-fish-based-mapping-of-nearby-single-copy-probes-caused-by-the-dynamic-structure-of-metaphase-chromosomes
#3
Fernanda O Bustamante, Lala Aliyeva-Schnorr, Jörg Fuchs, Sebastian Beier, Andreas Houben
Genetic maps are based on the recombination frequency of molecular markers which often show different positions in comparison to the corresponding physical maps. To decipher the position and order of DNA sequences genetically mapped to terminal and interstitial regions of barley (Hordeum vulgare) chromosome 3H, fluorescence in situ hybridization (FISH) on mitotic metaphase chromosomes was performed with 16 genomic single-copy probes derived from fingerprinted BAC contigs. Long genetic distances at subterminal regions translated into short physical distances, confirming that recombination events occur more often at distal regions of chromosome 3H...
July 19, 2017: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/28717161/development-and-characterization-of-a-novel-prox1-egfp-lymphatic-and-schlemm-s-canal-reporter-rat
#4
Eunson Jung, Daniel Gardner, Dongwon Choi, Eunkyung Park, Young Jin Seong, Sara Yang, Jorge Castorena-Gonzalez, Antoine Louveau, Zhao Zhou, Gene K Lee, David P Perrault, Sunju Lee, Maxwell Johnson, George Daghlian, Maria Lee, Yeo Jin Hong, Yukinari Kato, Jonathan Kipnis, Michael J Davis, Alex K Wong, Young-Kwon Hong
The lymphatic system plays a key role in tissue fluid homeostasis, immune cell trafficking, and fat absorption. We previously reported a bacterial artificial chromosome (BAC)-based lymphatic reporter mouse, where EGFP is expressed under the regulation of the Prox1 promoter. This reporter line has been widely used to conveniently visualize lymphatic vessels and other Prox1-expressing tissues such as Schlemm's canal. However, mice have a number of experimental limitations due to small body size. By comparison, laboratory rats are larger in size and more closely model the metabolic, physiological, and surgical aspects of humans...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28713249/crispr-cas9-mediated-zebrafish-knock-in-as-a-novel-strategy-to-study-midbrain-hindbrain-boundary-development
#5
Gokul Kesavan, Avinash Chekuru, Anja Machate, Michael Brand
The midbrain-hindbrain boundary (MHB) acts as an organizer and controls the fate of neighboring cells to develop into either mesencephalic (midbrain) or metencephalic (hindbrain) cells by secreting signaling molecules like Wnt1 and Fgf8. The zebrafish is an excellent vertebrate model for studying MHB development due to the ease of gene manipulation and the possibility of following cellular dynamics and morphogenetic processes using live imaging. Currently, only very few reporter and/or Cre-driver lines are available to study gene expression at the MHB, hampering the understanding of MHB development, and traditional transgenic technologies using promoter/enhancer fragments or bacterial artificial chromosome (BAC)-mediated transgenesis often do not faithfully recapitulate endogenous expression patterns...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28710947/variations-in-biofilm-formation-desiccation-resistance-and-benzalkonium-chloride-susceptibility-among-listeria-monocytogenes-strains-isolated-in-canada
#6
Marta J Piercey, Timothy C Ells, Andrew J Macintosh, Lisbeth Truelstrup Hansen
Listeria monocytogenes is a pathogenic foodborne microorganism noted for its ability to survive in the environment and food processing facilities. Survival may be related to the phenotype of individual strains including the ability to form biofilms and resist desiccation and/or sanitizer exposure. The objectives of this research were to compare 14 L. monocytogenes strains isolated from blood (3), food (6) and water (5) with respect to their benzalkonium chloride (BAC) sensitivity, desiccation resistance, and ability to form biofilm...
July 8, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28708628/enhanced-treatment-of-secondary-municipal-wastewater-effluent-comparing-biological-filtration-and-ozonation-in-view-of-micropollutant-removal-unselective-effluent-toxicity-and-the-potential-for-real-time-control
#7
Michael Chys, Kristof Demeestere, Ange Sabine Ingabire, Jan Dries, Herman Van Langenhove, Stijn W H Van Hulle
Ozonation and three (biological) filtration techniques (trickling filtration (TF), slow sand filtration (SSF) and biological activated carbon (BAC) filtration) have been evaluated in different combinations as tertiary treatment for municipal wastewater effluent. The removal of 18 multi-class pharmaceuticals, as model trace organic contaminants (TrOCs), has been studied. (Biological) activated carbon filtration could reduce the amount of TrOCs significantly (>99%) but is cost-intensive for full-scale applications...
July 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28705663/creativity-on-tap-effects-of-alcohol-intoxication-on-creative-cognition
#8
Mathias Benedek, Lisa Panzierer, Emanuel Jauk, Aljoscha C Neubauer
Anecdotal reports link alcohol intoxication to creativity, while cognitive research highlights the crucial role of cognitive control for creative thought. This study examined the effects of mild alcohol intoxication on creative cognition in a placebo-controlled design. Participants completed executive and creative cognition tasks before and after consuming either alcoholic beer (BAC of 0.03) or non-alcoholic beer (placebo). Alcohol impaired executive control, but improved performance in the Remote Associates Test, and did not affect divergent thinking ability...
July 10, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28705457/a-novel-c-type-lectin-gene-is-a-strong-candidate-gene-for-benedenia-disease-resistance-in-japanese-yellowtail-seriola-quinqueradiata
#9
Masatoshi Nakamoto, Yusuke Takeuchi, Kazuki Akita, Ryo Kumagai, Junpei Suzuki, Takashi Koyama, Tsutomu Noda, Kazunori Yoshida, Akiyuki Ozaki, Kazuo Araki, Takashi Sakamoto
Little is known about mechanisms of resistance to parasitic diseases in marine finfish. Benedenia disease is caused by infection by the monogenean parasite Benedenia seriolae. Previous quantitative trait locus (QTL) analyses have identified a major QTL associated with resistance to Benedenia disease in linkage group Squ2 of the Japanese yellowtail/amberjack Seriola quinqueradiata. To uncover the bioregulatory mechanism of Benedenia disease resistance, complete Illumina sequencing of BAC clones carrying genomic DNA for the QTL region in linkage group Squ2 was performed to reveal a novel C-type lectin in this region...
July 10, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28702048/aegilops-tauschii-accessions-with-geographically-diverse-origin-show-differences-in-chromosome-organization-and-polymorphism-of-molecular-markers-linked-to-leaf-rust-and-powdery-mildew-resistance-genes
#10
Maciej Majka, Michał T Kwiatek, Joanna Majka, Halina Wiśniewska
Aegilops tauschii (2n = 2x = 14) is a diploid wild species which is reported as a donor of the D-genome of cultivated bread wheat. The main goal of this study was to examine the differences and similarities in chromosomes organization among accessions of Ae. tauschii with geographically diversed origin, which is believed as a potential source of genes, especially determining resistance to fungal diseases (i.e., leaf rust and powdery mildew) for breeding of cereals. We established and compared the fluorescence in situ hybridization patterns of 21 accessions of Ae...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28701772/genetic-targeting-and-anatomical-registration-of-neuronal-populations-in-the-zebrafish-brain-with-a-new-set-of-bac-transgenic-tools
#11
Dominique Förster, Irene Arnold-Ammer, Eva Laurell, Alison J Barker, António M Fernandes, Karin Finger-Baier, Alessandro Filosa, Thomas O Helmbrecht, Yvonne Kölsch, Enrico Kühn, Estuardo Robles, Krasimir Slanchev, Tod R Thiele, Herwig Baier, Fumi Kubo
Genetic access to small, reproducible sets of neurons is key to an understanding of the functional wiring of the brain. Here we report the generation of a new Gal4- and Cre-driver resource for zebrafish neurobiology. Candidate genes, including cell type-specific transcription factors, neurotransmitter-synthesizing enzymes and neuropeptides, were selected according to their expression patterns in small and unique subsets of neurons from diverse brain regions. BAC recombineering, followed by Tol2 transgenesis, was used to generate driver lines that label neuronal populations in patterns that, to a large but variable extent, recapitulate the endogenous gene expression...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28701225/association-of-schizophrenia-onset-age-and-white-matter-integrity-with-treatment-effect-of-d-cycloserine-a-randomized-placebo-controlled-double-blind-crossover-study
#12
Kazuo Takiguchi, Akihito Uezato, Michio Itasaka, Hidenori Atsuta, Kenji Narushima, Naoki Yamamoto, Akeo Kurumaji, Makoto Tomita, Kazunari Oshima, Kosaku Shoda, Mai Tamaru, Masahito Nakataki, Mitsutoshi Okazaki, Sayuri Ishiwata, Yasuyoshi Ishiwata, Masato Yasuhara, Kunimasa Arima, Tetsuro Ohmori, Toru Nishikawa
BACKGROUND: It has been reported that drugs which promote the N-Methyl-D-aspartate-type glutamate receptor function by stimulating the glycine modulatory site in the receptor improve negative symptoms and cognitive dysfunction in schizophrenia patients being treated with antipsychotic drugs. METHODS: We performed a placebo-controlled double-blind crossover study involving 41 schizophrenia patients in which D-cycloserine 50 mg/day was added-on, and the influence of the onset age and association with white matter integrity on MR diffusion tensor imaging were investigated for the first time...
July 12, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28691278/cognitive-function-treatment-response-to-lithium-and-social-functioning-in-japanese-patients-with-bipolar-disorder
#13
Satoshi Saito, Kumiko Fujii, Yuji Ozeki, Kenichi Ohmori, Gyo Honda, Harunobu Mori, Kazuko Kato, Jinichi Kuroda, Akiko Aoki, Haruhiko Asahi, Hayato Sato, Kazutaka Shimoda, Kazufumi Akiyama
OBJECTIVES: Patients with bipolar disorder often suffer from cognitive impairment that significantly influences their functional outcome. However, it remains unknown whether lithium has a central role in cognition and functional outcome. We examined whether cognition and functional outcome were predicted by demographic and clinical variables, including the response to lithium, in lithium-treated patients with bipolar disorder. METHODS: We evaluated 96 lithium-treated euthymic patients with bipolar disorder and 196 age- and-gender-matched healthy controls, using the Brief Assessment of Cognition in Schizophrenia (BACS)...
July 10, 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28690436/a-rat-model-of-fetal-alcohol-syndrome-a-series-of-undergraduate-laboratory-exercises-for-biopsychology-courses
#14
Ana M H Kehrberg, Jenna N Parrish, Sasha A Eby
Many undergraduate students are aware that consuming alcohol during pregnancy can result in many serious physical and behavioral deficits. Student interest in this clinical syndrome allows instructors to provide engaging laboratory exercises that relate topics covered in most biopsychology courses to Fetal Alcohol Syndrome (FAS). Through this series of experiments, students will use rodents to study the behavioral deficits that can be caused by developmental alcohol exposure, including impaired ultrasonic vocalizations, hyperactivity, balance, and spatial learning...
2017: Journal of Undergraduate Neuroscience Education: JUNE: a Publication of FUN, Faculty for Undergraduate Neuroscience
https://www.readbyqxmd.com/read/28689477/impact-of-biological-activated-carbon-pre-treatment-on-the-hydrophilic-fraction-of-effluent-organic-matter-for-mitigating-fouling-in-microfiltration
#15
Biplob Kumar Pramanik, Felicity A Roddick, Linhua Fan
The hydrophilic (HPI) fraction of effluent organic matter, which has protein and carbohydrate content, has a high propensity to foul low pressure membranes. Biological activated carbon (BAC) filtration was examined as a pre-treatment for reducing the fouling of a microfiltration membrane (0.1 µm PVDF) by the HPI organic fraction extracted from a biologically treated secondary effluent (BTSE). Although the BAC removed less dissolved organic carbon, carbohydrate and protein from the HPI fraction than the granular activated carbon treatment which was used for comparison, it led to better improvement in permeate flux...
July 10, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28678686/cross-species-antiviral-activity-of-goose-interferon-lambda-against-duck-plague-virus-is-related-to-its-positive-self-regulatory-feedback-loop
#16
Shun Chen, Wei Zhang, Qin Zhou, Anqi Wang, Lipei Sun, Mingshu Wang, Renyong Jia, Dekang Zhu, Mafeng Liu, Kunfeng Sun, Qiao Yang, Ying Wu, Xiaoyue Chen, Anchun Cheng
Duck plague virus (DPV) is a virus of the Herpesviridae family that leads to acute disease with a high mortality rate in ducks. Control of the disease contributes to the development of poultry breeding. Type III IFN family (IFN-λs) is a novel member of the IFN family, and goose IFN-λ (goIFN-λ) is a newly identified gene whose antiviral function has only been investigated to a limited extent. Here, the cross-species antiviral activity of goIFN-λ against DPV in duck embryo fibroblasts (DEFs) was studied. We found that pre-treatment with goIFN-λ greatly increased the expression of IFN-λ in both heterologous DEFs and homologous goose embryo fibroblasts (GEFs), while differentially inducing IFNα- and IFN-stimulated genes...
June 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28675662/separate-and-coincident-expression-of-hes1-and-hes5-in-the-developing-mouse-eye
#17
Amy N Riesenberg, Kevin W Conley, Tien T Le, Nadean L Brown
BACKGROUND: Notch signaling is broadly required during embryogenesis, frequently activating the transcription of two bHLH transcription factors, Hes1 and Hes5. But, it remains unresolved when and where Hes1 and Hes5 act alone or together during development. Here, we analyzed a Hes5-GFP BAC transgenic mouse, as a proxy for endogenous Hes5. We directly compared transgenic GFP expression with Hes1, and particular markers of embryonic lens and retina development. RESULTS: Hes5-GFP is dynamic within subsets of retinal and lens progenitor cells, and differentiating retinal ganglion neurons, in contrast to Hes1 found in all progenitor cells...
July 4, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28674667/-glial-and-stem-cell-expression-of-murine-fibroblast-growth-factor-receptor-1-in-the-embryonic-and-perinatal-nervous-system
#18
Jantzen C Collette, Lisha Choubey, Karen Müller Smith
BACKGROUND: Fibroblast growth factors (FGFs) and their receptors (FGFRs) are involved in the development and function of multiple organs and organ systems, including the central nervous system (CNS). FGF signaling via FGFR1, one of the three FGFRs expressed in the CNS, stimulates proliferation of stem cells during prenatal and postnatal neurogenesis and participates in regulating cell-type ratios in many developing regions of the brain. Anomalies in FGFR1 signaling have been implicated in certain neuropsychiatric disorders...
2017: PeerJ
https://www.readbyqxmd.com/read/28669766/yeast-tok1p-channel-is-a-major-contributor-to-membrane-potential-maintenance-under-chemical-stress
#19
Jakub Zahumenský, Iva Jančíková, Andrea Drietomská, Andrea Švenkrtová, Otakar Hlaváček, Tomáš Hendrych, Jaromír Plášek, Karel Sigler, Dana Gášková
Tok1p is a highly specific yeast plasma membrane potassium channel with strong outward directionality. Its opening is induced by membrane depolarization. Although the biophysical properties of Tok1p are well-described, its potentially important physiological role is currently largely unexplored. To address this issue, we examined the Tok1p activity following chemically-induced depolarization by measuring changes of plasma membrane potential (ΔΨ) using the diS-C3(3) fluorescence assay in a Tok1p-expressing and a Tok1p-deficient strain...
June 29, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28667403/molecular-and-fish-analyses-of-a-53-kbp-intact-dna-fragment-inserted-by-biolistics-in-wheat-triticum-aestivum-l-genome
#20
A Partier, G Gay, C Tassy, M Beckert, C Feuillet, P Barret
A large, 53-kbp, intact DNA fragment was inserted into the wheat ( Triticum aestivum L.) genome. FISH analyses of individual transgenic events revealed multiple insertions of intact fragments. Transferring large intact DNA fragments containing clusters of resistance genes or complete metabolic pathways into the wheat genome remains a challenge. In a previous work, we showed that the use of dephosphorylated cassettes for wheat transformation enabled the production of simple integration patterns. Here, we used the same technology to produce a cassette containing a 44-kb Arabidopsis thaliana BAC, flanked by one selection gene and one reporter gene...
June 30, 2017: Plant Cell Reports
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