Extended Evaluation of Viral Diversity in Lake Baikal Through Metagenomics
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Community Analysis of Microbial Sharing and Specialization in A
Downloaded from http://rspb.royalsocietypublishing.org/ on March 15, 2017 Community analysis of microbial sharing rspb.royalsocietypublishing.org and specialization in a Costa Rican ant–plant–hemipteran symbiosis Elizabeth G. Pringle1,2 and Corrie S. Moreau3 Research 1Department of Biology, Program in Ecology, Evolution, and Conservation Biology, University of Nevada, Cite this article: Pringle EG, Moreau CS. 2017 Reno, NV 89557, USA 2Michigan Society of Fellows, University of Michigan, Ann Arbor, MI 48109, USA Community analysis of microbial sharing and 3Department of Science and Education, Field Museum of Natural History, 1400 South Lake Shore Drive, specialization in a Costa Rican ant–plant– Chicago, IL 60605, USA hemipteran symbiosis. Proc. R. Soc. B 284: EGP, 0000-0002-4398-9272 20162770. http://dx.doi.org/10.1098/rspb.2016.2770 Ants have long been renowned for their intimate mutualisms with tropho- bionts and plants and more recently appreciated for their widespread and diverse interactions with microbes. An open question in symbiosis research is the extent to which environmental influence, including the exchange of Received: 14 December 2016 microbes between interacting macroorganisms, affects the composition and Accepted: 17 January 2017 function of symbiotic microbial communities. Here we approached this ques- tion by investigating symbiosis within symbiosis. Ant–plant–hemipteran symbioses are hallmarks of tropical ecosystems that produce persistent close contact among the macroorganism partners, which then have substantial opportunity to exchange symbiotic microbes. We used metabarcoding and Subject Category: quantitative PCR to examine community structure of both bacteria and Ecology fungi in a Neotropical ant–plant–scale-insect symbiosis. Both phloem-feed- ing scale insects and honeydew-feeding ants make use of microbial Subject Areas: symbionts to subsist on phloem-derived diets of suboptimal nutritional qual- ecology, evolution, microbiology ity. -
Chapitre Quatre La Spécificité D'hôtes Des Virophages Sputnik
AIX-MARSEILLE UNIVERSITE FACULTE DE MEDECINE DE MARSEILLE ECOLE DOCTORALE DES SCIENCES DE LA VIE ET DE LA SANTE THESE DE DOCTORAT Présentée par Morgan GAÏA Né le 24 Octobre 1987 à Aubagne, France Pour obtenir le grade de DOCTEUR de l’UNIVERSITE AIX -MARSEILLE SPECIALITE : Pathologie Humaine, Maladies Infectieuses Les virophages de Mimiviridae The Mimiviridae virophages Présentée et publiquement soutenue devant la FACULTE DE MEDECINE de MARSEILLE le 10 décembre 2013 Membres du jury de la thèse : Pr. Bernard La Scola Directeur de thèse Pr. Jean -Marc Rolain Président du jury Pr. Bruno Pozzetto Rapporteur Dr. Hervé Lecoq Rapporteur Faculté de Médecine, 13385 Marseille Cedex 05, France URMITE, UM63, CNRS 7278, IRD 198, Inserm 1095 Directeur : Pr. Didier RAOULT Avant-propos Le format de présentation de cette thèse correspond à une recommandation de la spécialité Maladies Infectieuses et Microbiologie, à l’intérieur du Master des Sciences de la Vie et de la Santé qui dépend de l’Ecole Doctorale des Sciences de la Vie de Marseille. Le candidat est amené à respecter des règles qui lui sont imposées et qui comportent un format de thèse utilisé dans le Nord de l’Europe permettant un meilleur rangement que les thèses traditionnelles. Par ailleurs, la partie introduction et bibliographie est remplacée par une revue envoyée dans un journal afin de permettre une évaluation extérieure de la qualité de la revue et de permettre à l’étudiant de commencer le plus tôt possible une bibliographie exhaustive sur le domaine de cette thèse. Par ailleurs, la thèse est présentée sur article publié, accepté ou soumis associé d’un bref commentaire donnant le sens général du travail. -
Grapevine Virus Diseases: Economic Impact and Current Advances in Viral Prospection and Management1
1/22 ISSN 0100-2945 http://dx.doi.org/10.1590/0100-29452017411 GRAPEVINE VIRUS DISEASES: ECONOMIC IMPACT AND CURRENT ADVANCES IN VIRAL PROSPECTION AND MANAGEMENT1 MARCOS FERNANDO BASSO2, THOR VINÍCIUS MArtins FAJARDO3, PASQUALE SALDARELLI4 ABSTRACT-Grapevine (Vitis spp.) is a major vegetative propagated fruit crop with high socioeconomic importance worldwide. It is susceptible to several graft-transmitted agents that cause several diseases and substantial crop losses, reducing fruit quality and plant vigor, and shorten the longevity of vines. The vegetative propagation and frequent exchanges of propagative material among countries contribute to spread these pathogens, favoring the emergence of complex diseases. Its perennial life cycle further accelerates the mixing and introduction of several viral agents into a single plant. Currently, approximately 65 viruses belonging to different families have been reported infecting grapevines, but not all cause economically relevant diseases. The grapevine leafroll, rugose wood complex, leaf degeneration and fleck diseases are the four main disorders having worldwide economic importance. In addition, new viral species and strains have been identified and associated with economically important constraints to grape production. In Brazilian vineyards, eighteen viruses, three viroids and two virus-like diseases had already their occurrence reported and were molecularly characterized. Here, we review the current knowledge of these viruses, report advances in their diagnosis and prospection of new species, and give indications about the management of the associated grapevine diseases. Index terms: Vegetative propagation, plant viruses, crop losses, berry quality, next-generation sequencing. VIROSES EM VIDEIRAS: IMPACTO ECONÔMICO E RECENTES AVANÇOS NA PROSPECÇÃO DE VÍRUS E MANEJO DAS DOENÇAS DE ORIGEM VIRAL RESUMO-A videira (Vitis spp.) é propagada vegetativamente e considerada uma das principais culturas frutíferas por sua importância socioeconômica mundial. -
Elisabeth Mendes Martins De Moura Diversidade De Vírus DNA
Elisabeth Mendes Martins de Moura Diversidade de vírus DNA autóctones e alóctones de mananciais e de esgoto da região metropolitana de São Paulo Tese apresentada ao Programa de Pós- Graduação em Microbiologia do Instituto de Ciências Biomédicas da Universidade de São Paulo, para obtenção do Titulo de Doutor em Ciências. Área de concentração: Microbiologia Orienta: Prof (a). Dr (a). Dolores Ursula Mehnert versão original São Paulo 2017 RESUMO MOURA, E. M. M. Diversidade de vírus DNA autóctones e alóctones de mananciais e de esgoto da região metropolitana de São Paulo. 2017. 134f. Tese (Doutorado em Microbiologia) - Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, 2017. A água doce no Brasil, assim como o seu consumo é extremamente importante para as diversas atividades criadas pelo ser humano. Por esta razão o consumo deste bem é muito grande e consequentemente, provocando o seu impacto. Os mananciais são normalmente usados para abastecimento doméstico, comercial, industrial e outros fins. Os estudos na área de ecologia de micro-organismos nos ecossistemas aquáticos (mananciais) e em esgotos vêm sendo realizados com mais intensidade nos últimos anos. Nas últimas décadas foi introduzido o conceito de virioplâncton com base na abundância e diversidade de partículas virais presentes no ambiente aquático. O virioplâncton influencia muitos processos ecológicos e biogeoquímicos, como ciclagem de nutriente, taxa de sedimentação de partículas, diversidade e distribuição de espécies de algas e bactérias, controle de florações de fitoplâncton e transferência genética horizontal. Os estudos nesta área da virologia molecular ainda estão muito restritos no país, bem como muito pouco se conhece sobre a diversidade viral na água no Brasil. -
Diversity of Viruses in Hard Ticks (Ixodidae) from Select Areas of a Wildlife-Livestock Interface Ecosystem at Mikumi National Park, Tanzania
American Journal of BioScience 2020; 8(6): 150-157 http://www.sciencepublishinggroup.com/j/ajbio doi: 10.11648/j.ajbio.20200806.12 ISSN: 2330-0159 (Print); ISSN: 2330-0167 (Online) Diversity of Viruses in Hard Ticks (Ixodidae) from Select Areas of a Wildlife-livestock Interface Ecosystem at Mikumi National Park, Tanzania Donath Damian 1, 3, * , Modester Damas 1, Jonas Johansson Wensman 2, Mikael Berg 3 1Department of Molecular Biology and Biotechnology, University of Dar es Salaam, Dar es Salaam, Tanzania 2Section of Ruminant Medicine, Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden 3Section of Virology, Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden Email address: *Corresponding author To cite this article: Donath Damian, Modester Damas, Jonas Johansson Wensman, Mikael Berg. Diversity of Viruses in Hard Ticks (Ixodidae) from Select Areas of a Wildlife-livestock Interface Ecosystem at Mikumi National Park, Tanzania. American Journal of BioScience . Vol. 8, No. 6, 2020, pp. 150-157. doi: 10.11648/j.ajbio.20200806.12 Received : December 3, 2020; Accepted : December 16, 2020; Published : December 28, 2020 Abstract: Many of the recent emerging infectious diseases have occurred due to the transmission of the viruses that have wildlife reservoirs. Arthropods, such as ticks, are known to be important vectors for spreading viruses and other pathogens from wildlife to domestic animals and humans. In the present study, we explored the diversity of viruses in hard ticks (Ixodidae) from select areas of a wildlife-livestock interface ecosystem at Mikumi National Park, Tanzania using a metagenomic approach. cDNA and DNA were amplified with random amplification and Illumina high-throughput sequencing was performed. -
Chlorovirus PBCV-1 Multidomain Protein A111/114R Has Three Glycosyltransferase Functions Involved in the Synthesis of Atypical N-Glycans
viruses Article Chlorovirus PBCV-1 Multidomain Protein A111/114R Has Three Glycosyltransferase Functions Involved in the Synthesis of Atypical N-Glycans Eric Noel 1,2,† , Anna Notaro 3,4,† , Immacolata Speciale 3,5,† , Garry A. Duncan 1, Cristina De Castro 5,* and James L. Van Etten 1,6,* 1 Nebraska Center for Virology, University of Nebraska, Lincoln, NE 68583-0900, USA; [email protected] (E.N.); [email protected] (G.A.D.) 2 School of Biological Sciences, University of Nebraska, Lincoln, NE 68588-0118, USA 3 Department of Chemical Sciences, University of Napoli Federico II, Via Cintia 4, 80126 Napoli, Italy; [email protected] (A.N.); [email protected] (I.S.) 4 Information Génomique et Structurale, Centre National de la Recherche Scientifique, Aix-Marseille Université, UMR 7256, IMM FR3479, Institut de Microbiologie (FR3479), CEDEX 9, 13288 Marseille, France 5 Department of Agricultural Sciences, University of Napoli Federico II, Via Università 100, 80055 Portici, Italy 6 Department of Plant Pathology, University of Nebraska, Lincoln, NE 68583-0722, USA * Correspondence: [email protected] (C.D.C.); [email protected] (J.L.V.E.) † These authors contributed equally to this work. Abstract: The structures of the four N-linked glycans from the prototype chlorovirus PBCV-1 major capsid protein do not resemble any other glycans in the three domains of life. All known chloroviruses and antigenic variants (or mutants) share a unique conserved central glycan core consisting of five sugars, except for antigenic mutant virus P1L6, which has four of the five sugars. A combination of ge- netic and structural analyses indicates that the protein coded by PBCV-1 gene a111/114r, conserved in Citation: Noel, E.; Notaro, A.; all chloroviruses, is a glycosyltransferase with three putative domains of approximately 300 amino Speciale, I.; Duncan, G.A.; De Castro, C.; Van Etten, J.L. -
Lack of Viral Mirna Expression in an Experimental Infection
Núñez-Hernández et al. Veterinary Research (2015) 46:48 DOI 10.1186/s13567-015-0181-4 VETERINARY RESEARCH SHORT REPORT Open Access Evaluation of the capability of the PCV2 genome to encode miRNAs: lack of viral miRNA expression in an experimental infection Fernando Núñez-Hernández1, Lester J Pérez2, Gonzalo Vera3, Sarai Córdoba3, Joaquim Segalés1,4, Armand Sánchez3,5 and José I Núñez1* Abstract Porcine circovirus type 2 (PCV2) is a ssDNA virus causing PCV2-systemic disease (PCV2-SD), one of the most important diseases in swine. MicroRNAs (miRNAs) are a new class of small non-coding RNAs that regulate gene expression post-transcriptionally. Viral miRNAs have recently been described and the number of viral miRNAs has been increasing in the past few years. In this study, small RNA libraries were constructed from two tissues of subclinically PCV2 infected pigs to explore if PCV2 can encode viral miRNAs. The deep sequencing data revealed that PCV2 does not express miRNAs in an in vivo subclinical infection. Introduction, methods, and results family with the highest miRNAs encoding capacity Porcine circovirus type 2-systemic disease (PCV2-SD) is [6,7]. Other viruses belonging to the families Polyoma- a devastating disease that causes important economic viridae, Adenoviridae, Papillomaviridae, Baculoviridae losses [1]. The disease is essentially caused by PCV2, a and Ascoviridae encode miRNAs in low numbers single stranded DNA, non enveloped virus belonging to [8-12]. Recently, a Human Torque Teno virus, a small, the Circoviridae family [2]. The PCV2 genome encodes ssDNA virus from the Anelloviridae family, that en- four ORFs. ORF1 encodes for two proteins (Rep and codes a miRNA involved in interferon modulation has Rep’) which are involved in replication. -
Pdf Available
Virology 554 (2021) 89–96 Contents lists available at ScienceDirect Virology journal homepage: www.elsevier.com/locate/virology Diverse cressdnaviruses and an anellovirus identifiedin the fecal samples of yellow-bellied marmots Anthony Khalifeh a, Daniel T. Blumstein b,**, Rafaela S. Fontenele a, Kara Schmidlin a, C´ecile Richet a, Simona Kraberger a, Arvind Varsani a,c,* a The Biodesign Center for Fundamental and Applied Microbiomics, School of Life Sciences, Center for Evolution and Medicine, Arizona State University, Tempe, AZ, 85287, USA b Department of Ecology & Evolutionary Biology, Institute of the Environment & Sustainability, University of California Los Angeles, Los Angeles, CA, 90095, USA c Structural Biology Research Unit, Department of Clinical Laboratory Sciences, University of Cape Town, 7925, Cape Town, South Africa ARTICLE INFO ABSTRACT Keywords: Over that last decade, coupling multiple strand displacement approaches with high throughput sequencing have Marmota flaviventer resulted in the identification of genomes of diverse groups of small circular DNA viruses. Using a similar Anelloviridae approach but with recovery of complete genomes by PCR, we identified a diverse group of single-stranded vi Genomoviridae ruses in yellow-bellied marmot (Marmota flaviventer) fecal samples. From 13 fecal samples we identified viruses Cressdnaviricota in the family Genomoviridae (n = 7) and Anelloviridae (n = 1), and several others that ware part of the larger Cressdnaviricota phylum but not within established families (n = 19). There were also circular DNA molecules identified (n = 4) that appear to encode one viral-like gene and have genomes of <1545 nts. This study gives a snapshot of viruses associated with marmots based on fecal sampling. -
Multiple Origins of Prokaryotic and Eukaryotic Single-Stranded DNA Viruses from Bacterial and Archaeal Plasmids
ARTICLE https://doi.org/10.1038/s41467-019-11433-0 OPEN Multiple origins of prokaryotic and eukaryotic single-stranded DNA viruses from bacterial and archaeal plasmids Darius Kazlauskas 1, Arvind Varsani 2,3, Eugene V. Koonin 4 & Mart Krupovic 5 Single-stranded (ss) DNA viruses are a major component of the earth virome. In particular, the circular, Rep-encoding ssDNA (CRESS-DNA) viruses show high diversity and abundance 1234567890():,; in various habitats. By combining sequence similarity network and phylogenetic analyses of the replication proteins (Rep) belonging to the HUH endonuclease superfamily, we show that the replication machinery of the CRESS-DNA viruses evolved, on three independent occa- sions, from the Reps of bacterial rolling circle-replicating plasmids. The CRESS-DNA viruses emerged via recombination between such plasmids and cDNA copies of capsid genes of eukaryotic positive-sense RNA viruses. Similarly, the rep genes of prokaryotic DNA viruses appear to have evolved from HUH endonuclease genes of various bacterial and archaeal plasmids. Our findings also suggest that eukaryotic polyomaviruses and papillomaviruses with dsDNA genomes have evolved via parvoviruses from CRESS-DNA viruses. Collectively, our results shed light on the complex evolutionary history of a major class of viruses revealing its polyphyletic origins. 1 Institute of Biotechnology, Life Sciences Center, Vilnius University, Saulėtekio av. 7, Vilnius 10257, Lithuania. 2 The Biodesign Center for Fundamental and Applied Microbiomics, School of Life Sciences, Center for Evolution and Medicine, Arizona State University, Tempe, AZ 85287, USA. 3 Structural Biology Research Unit, Department of Integrative Biomedical Sciences, University of Cape Town, Rondebosch, 7700 Cape Town, South Africa. -
Primordial Capsid and Spooled Ssdna Genome Structures Penetrate
bioRxiv preprint doi: https://doi.org/10.1101/2021.03.14.435335; this version posted March 14, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 Primordial capsid and spooled ssDNA genome structures penetrate 2 ancestral events of eukaryotic viruses 3 4 Anna Munke1*#, Kei Kimura2, Yuji Tomaru3, Han Wang1, Kazuhiro Yoshida4, Seiya Mito5, Yuki 5 Hongo6, and Kenta Okamoto1* 6 1. The Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala 7 University, Uppsala, Sweden 8 2. Department of Biological Resource Science, Faculty of Agriculture, Saga University, Saga, Japan 9 3. Fisheries Technology Institute, Japan Fisheries Research and Education Agency, Hatsukaichi, 10 Hiroshima, Japan 11 4. Graduate School of Agriculture, Saga University, Saga, Japan 12 5. Department of Biological Resource Science, Faculty of Agriculture, Saga University, Saga, Japan 13 6. Bioinformatics and Biosciences Division, Fisheries Resources Institute, Japan Fisheries Research 14 and Education Agency, Fukuura, Kanazawa, Yokohama, Kanagawa, Japan 15 16 17 *Corresponding authors 18 Corresponding author 1: [email protected] 19 Corresponding author 2: [email protected] 20 21 22 #Present address: Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, 23 Hamburg 22607, Germany 1 bioRxiv preprint doi: https://doi.org/10.1101/2021.03.14.435335; this version posted March 14, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 24 Abstract 25 Marine algae viruses are important for controlling microorganism communities in the marine 26 ecosystem, and played a fundamental role during the early events of viral evolution. -
Reclassification of Agrobacterium Ferrugineum LMG 128 As Hoeflea
International Journal of Systematic and Evolutionary Microbiology (2005), 55, 1163–1166 DOI 10.1099/ijs.0.63291-0 Reclassification of Agrobacterium ferrugineum LMG 128 as Hoeflea marina gen. nov., sp. nov. Alvaro Peix,1 Rau´l Rivas,2 Martha E. Trujillo,2 Marc Vancanneyt,3 Encarna Vela´zquez2 and Anne Willems3 Correspondence 1Departamento de Produccio´n Vegetal, Instituto de Recursos Naturales y Agrobiologı´a, Encarna Vela´zquez IRNA-CSIC, Spain [email protected] 2Departamento de Microbiologı´a y Gene´tica, Lab. 209, Edificio Departamental, Campus Miguel de Unamuno, Universidad de Salamanca, 37007 Salamanca, Spain 3Laboratory of Microbiology, Dept Biochemistry, Physiology and Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium Members of the species Agrobacterium ferrugineum were isolated from marine environments. The type strain of this species (=LMG 22047T=ATCC 25652T) was recently reclassified in the new genus Pseudorhodobacter, in the order ‘Rhodobacterales’ of the class ‘Alphaproteobacteria’. Strain LMG 128 (=ATCC 25654) was also initially classified as belonging to the species Agrobacterium ferrugineum; however, the nearly complete 16S rRNA gene sequence of this strain indicated that it does not belong within the genus Agrobacterium or within the genus Pseudorhodobacter. The closest related organism, with 95?5 % 16S rRNA gene similarity, was Aquamicrobium defluvii from the family ‘Phyllobacteriaceae’ in the order ‘Rhizobiales’. The remaining genera from this order had 16S rRNA gene sequence similarities that were lower than 95?1 % with respect to strain LMG 128. These phylogenetic distances suggested that strain LMG 128 belonged to a different genus. The major fatty acid present in strain LMG 128 was mono-unsaturated straight chain 18 : 1v7c. -
Chlorovirus: a Genus of Phycodnaviridae That Infects Certain Chlorella-Like Green Algae
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Papers in Plant Pathology Plant Pathology Department 2005 Chlorovirus: A Genus of Phycodnaviridae that Infects Certain Chlorella-Like Green Algae Ming Kang University of Nebraska-Lincoln, [email protected] David Dunigan University of Nebraska-Lincoln, [email protected] James L. Van Etten University of Nebraska-Lincoln, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/plantpathpapers Part of the Plant Pathology Commons Kang, Ming; Dunigan, David; and Van Etten, James L., "Chlorovirus: A Genus of Phycodnaviridae that Infects Certain Chlorella-Like Green Algae" (2005). Papers in Plant Pathology. 130. https://digitalcommons.unl.edu/plantpathpapers/130 This Article is brought to you for free and open access by the Plant Pathology Department at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Papers in Plant Pathology by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Published in Molecular Plant Pathology 6:3 (2005), pp. 213–224; doi 10.1111/j.1364-3703.2005.00281.x Copyright © 2005 Black- well Publishing Ltd. Used by permission. http://www3.interscience.wiley.com/journal/118491680/ Published online May 23, 2005. Chlorovirus: a genus of Phycodnaviridae that infects certain chlorella-like green algae Ming Kang,1 David D. Dunigan,1,2 and James L. Van Etten 1,2 1 Department of Plant Pathology and 2 Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE 68583-0722, USA Correspondence — M. Kang, [email protected] ; J. L. Van Etten, [email protected] Abstract INTRODUCTION Taxonomy: Chlorella viruses are assigned to the family Phy- The chlorella viruses are large, icosahedral, plaque-form- codnaviridae, genus Chlorovirus, and are divided into ing, dsDNA viruses that infect certain unicellular, chlorella- three species: Chlorella NC64A viruses, Chlorella Pbi vi- like green algae (Van Etten et al., 1991).