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An Aerobic Eukaryotic Parasite with Functional Mitochondria That Likely
An aerobic eukaryotic parasite with functional mitochondria that likely lacks a mitochondrial genome Uwe John, Yameng Lu, Sylke Wohlrab, Marco Groth, Jan Janouškovec, Gurjeet Kohli, Felix Mark, Ulf Bickmeyer, Sarah Farhat, Marius Felder, et al. To cite this version: Uwe John, Yameng Lu, Sylke Wohlrab, Marco Groth, Jan Janouškovec, et al.. An aerobic eukaryotic parasite with functional mitochondria that likely lacks a mitochondrial genome. Science Advances , American Association for the Advancement of Science (AAAS), 2019, 5 (4), pp.eaav1110. 10.1126/sci- adv.aav1110. hal-02372304 HAL Id: hal-02372304 https://hal.archives-ouvertes.fr/hal-02372304 Submitted on 25 Nov 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. SCIENCE ADVANCES | RESEARCH ARTICLE EVOLUTIONARY BIOLOGY Copyright © 2019 The Authors, some rights reserved; An aerobic eukaryotic parasite with functional exclusive licensee American Association mitochondria that likely lacks a mitochondrial genome for the Advancement Uwe John1,2*, Yameng Lu1,3, Sylke Wohlrab1,2, Marco Groth4, Jan Janouškovec5, Gurjeet S. Kohli1,6, of Science. No claim to 1 1 7 4 1,8 original U.S. Government Felix C. Mark , Ulf Bickmeyer , Sarah Farhat , Marius Felder , Stephan Frickenhaus , Works. -
Molecular Data and the Evolutionary History of Dinoflagellates by Juan Fernando Saldarriaga Echavarria Diplom, Ruprecht-Karls-Un
Molecular data and the evolutionary history of dinoflagellates by Juan Fernando Saldarriaga Echavarria Diplom, Ruprecht-Karls-Universitat Heidelberg, 1993 A THESIS SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY in THE FACULTY OF GRADUATE STUDIES Department of Botany We accept this thesis as conforming to the required standard THE UNIVERSITY OF BRITISH COLUMBIA November 2003 © Juan Fernando Saldarriaga Echavarria, 2003 ABSTRACT New sequences of ribosomal and protein genes were combined with available morphological and paleontological data to produce a phylogenetic framework for dinoflagellates. The evolutionary history of some of the major morphological features of the group was then investigated in the light of that framework. Phylogenetic trees of dinoflagellates based on the small subunit ribosomal RNA gene (SSU) are generally poorly resolved but include many well- supported clades, and while combined analyses of SSU and LSU (large subunit ribosomal RNA) improve the support for several nodes, they are still generally unsatisfactory. Protein-gene based trees lack the degree of species representation necessary for meaningful in-group phylogenetic analyses, but do provide important insights to the phylogenetic position of dinoflagellates as a whole and on the identity of their close relatives. Molecular data agree with paleontology in suggesting an early evolutionary radiation of the group, but whereas paleontological data include only taxa with fossilizable cysts, the new data examined here establish that this radiation event included all dinokaryotic lineages, including athecate forms. Plastids were lost and replaced many times in dinoflagellates, a situation entirely unique for this group. Histones could well have been lost earlier in the lineage than previously assumed. -
Systema Naturae∗
Systema Naturae∗ c Alexey B. Shipunov v. 5.802 (June 29, 2008) 7 Regnum Monera [ Bacillus ] /Bacteria Subregnum Bacteria [ 6:8Bacillus ]1 Superphylum Posibacteria [ 6:2Bacillus ] stat.m. Phylum 1. Firmicutes [ 6Bacillus ]2 Classis 1(1). Thermotogae [ 5Thermotoga ] i.s. 2(2). Mollicutes [ 5Mycoplasma ] 3(3). Clostridia [ 5Clostridium ]3 4(4). Bacilli [ 5Bacillus ] 5(5). Symbiobacteres [ 5Symbiobacterium ] Phylum 2. Actinobacteria [ 6Actynomyces ] Classis 1(6). Actinobacteres [ 5Actinomyces ] Phylum 3. Hadobacteria [ 6Deinococcus ] sed.m. Classis 1(7). Hadobacteres [ 5Deinococcus ]4 Superphylum Negibacteria [ 6:2Rhodospirillum ] stat.m. Phylum 4. Chlorobacteria [ 6Chloroflexus ]5 Classis 1(8). Ktedonobacteres [ 5Ktedonobacter ] sed.m. 2(9). Thermomicrobia [ 5Thermomicrobium ] 3(10). Chloroflexi [ 5Chloroflexus ] ∗Only recent taxa. Viruses are not included. Abbreviations and signs: sed.m. (sedis mutabilis); stat.m. (status mutabilis): s., aut i. (superior, aut interior); i.s. (incertae sedis); sed.p. (sedis possibilis); s.str. (sensu stricto); s.l. (sensu lato); incl. (inclusum); excl. (exclusum); \quotes" for environmental groups; * (asterisk) for paraphyletic taxa; / (slash) at margins for major clades (\domains"). 1Incl. \Nanobacteria" i.s. et dubitativa, \OP11 group" i.s. 2Incl. \TM7" i.s., \OP9", \OP10". 3Incl. Dictyoglomi sed.m., Fusobacteria, Thermolithobacteria. 4= Deinococcus{Thermus. 5Incl. Thermobaculum i.s. 1 4(11). Dehalococcoidetes [ 5Dehalococcoides ] 5(12). Anaerolineae [ 5Anaerolinea ]6 Phylum 5. Cyanobacteria [ 6Nostoc ] Classis 1(13). Gloeobacteres [ 5Gloeobacter ] 2(14). Chroobacteres [ 5Chroococcus ]7 3(15). Hormogoneae [ 5Nostoc ] Phylum 6. Bacteroidobacteria [ 6Bacteroides ]8 Classis 1(16). Fibrobacteres [ 5Fibrobacter ] 2(17). Chlorobi [ 5Chlorobium ] 3(18). Salinibacteres [ 5Salinibacter ] 4(19). Bacteroidetes [ 5Bacteroides ]9 Phylum 7. Spirobacteria [ 6Spirochaeta ] Classis 1(20). Spirochaetes [ 5Spirochaeta ] s.l.10 Phylum 8. Planctobacteria [ 6Planctomyces ]11 Classis 1(21). -
Molecular Phylogenetic Analysis in Hammondia-Like Organisms Based on Partial Hsp70 Coding Sequences
1195 Molecular phylogenetic analysis in Hammondia-like organisms based on partial Hsp70 coding sequences R. M. MONTEIRO1, L. J. RICHTZENHAIN1,H.F.J.PENA1,S.L.P.SOUZA1, M. R. FUNADA1, S. M. GENNARI1, J. P. DUBEY2, C. SREEKUMAR2,L.B.KEID1 and R. M. SOARES1* 1 Departamento de Medicina Veterina´ria Preventiva e Sau´de Animal, Faculdade de Medicina Veterina´ria e Zootecnia, Universidade de Sa˜o Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, CEP 05508-900, Sa˜o Paulo, SP, Brazil 2 Animal Parasitic Diseases Laboratory, Animal and Natural Resources Institute, Agricultural Research Service, United States Department of Agricultural, Building 1001, Beltsville, MD 20705, USA (Resubmitted 7 January 2007; revised 31 January 2007; accepted 5 February 2007; first published online 27 April 2007) SUMMARY The 70 kDa heat-shock protein (Hsp70) sequences are considered one of the most conserved proteins in all domains of life from Archaea to eukaryotes. Hammondia heydorni, H. hammondi, Toxoplasma gondii, Neospora hughesi and N. caninum (Hammondia-like organisms) are closely related tissue cyst-forming coccidians that belong to the subfamily Toxoplasmatinae. The phylogenetic reconstruction using cytoplasmic Hsp70 coding genes of Hammondia-like organisms revealed the genetic sequences of T. gondii, Neospora spp. and H. heydorni to possess similar levels of evolutionary distance. In addition, at least 2 distinct genetic groups could be recognized among the H. heydorni isolates. Such results are in agreement with those obtained with internal transcribed spacer-1 rDNA (ITS-1) sequences. In order to compare the nucleotide diversity among different taxonomic levels within Apicomplexa, Hsp70 coding sequences of the following apicomplexan organisms were included in this study: Cryptosporidium, Theileria, Babesia, Plasmodium and Cyclospora. -
The Transcriptome of the Avian Malaria Parasite Plasmodium
bioRxiv preprint doi: https://doi.org/10.1101/072454; this version posted August 31, 2016. 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 The Transcriptome of the Avian Malaria Parasite 2 Plasmodium ashfordi Displays Host-Specific Gene 3 Expression 4 5 6 7 8 Running title 9 The Transcriptome of Plasmodium ashfordi 10 11 Authors 12 Elin Videvall1, Charlie K. Cornwallis1, Dag Ahrén1,3, Vaidas Palinauskas2, Gediminas Valkiūnas2, 13 Olof Hellgren1 14 15 Affiliation 16 1Department of Biology, Lund University, Lund, Sweden 17 2Institute of Ecology, Nature Research Centre, Vilnius, Lithuania 18 3National Bioinformatics Infrastructure Sweden (NBIS), Lund University, Lund, Sweden 19 20 Corresponding authors 21 Elin Videvall ([email protected]) 22 Olof Hellgren ([email protected]) 23 24 1 bioRxiv preprint doi: https://doi.org/10.1101/072454; this version posted August 31, 2016. 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. 25 Abstract 26 27 Malaria parasites (Plasmodium spp.) include some of the world’s most widespread and virulent 28 pathogens, infecting a wide array of vertebrates. Our knowledge of the molecular mechanisms these 29 parasites use to invade and exploit hosts other than mice and primates is, however, extremely limited. 30 How do Plasmodium adapt to individual hosts and to the immune response of hosts throughout an 31 infection? To better understand parasite plasticity, and identify genes that are conserved across the 32 phylogeny, it is imperative that we characterize transcriptome-wide gene expression from non-model 33 malaria parasites in multiple host individuals. -
(Alveolata) As Inferred from Hsp90 and Actin Phylogenies1
J. Phycol. 40, 341–350 (2004) r 2004 Phycological Society of America DOI: 10.1111/j.1529-8817.2004.03129.x EARLY EVOLUTIONARY HISTORY OF DINOFLAGELLATES AND APICOMPLEXANS (ALVEOLATA) AS INFERRED FROM HSP90 AND ACTIN PHYLOGENIES1 Brian S. Leander2 and Patrick J. Keeling Canadian Institute for Advanced Research, Program in Evolutionary Biology, Departments of Botany and Zoology, University of British Columbia, Vancouver, British Columbia, Canada Three extremely diverse groups of unicellular The Alveolata is one of the most biologically diverse eukaryotes comprise the Alveolata: ciliates, dino- supergroups of eukaryotic microorganisms, consisting flagellates, and apicomplexans. The vast phenotypic of ciliates, dinoflagellates, apicomplexans, and several distances between the three groups along with the minor lineages. Although molecular phylogenies un- enigmatic distribution of plastids and the economic equivocally support the monophyly of alveolates, and medical importance of several representative members of the group share only a few derived species (e.g. Plasmodium, Toxoplasma, Perkinsus, and morphological features, such as distinctive patterns of Pfiesteria) have stimulated a great deal of specula- cortical vesicles (syn. alveoli or amphiesmal vesicles) tion on the early evolutionary history of alveolates. subtending the plasma membrane and presumptive A robust phylogenetic framework for alveolate pinocytotic structures, called ‘‘micropores’’ (Cavalier- diversity will provide the context necessary for Smith 1993, Siddall et al. 1997, Patterson -
Transcriptomic Analysis Reveals Evidence for a Cryptic Plastid in the Colpodellid Voromonas Pontica, a Close Relative of Chromerids and Apicomplexan Parasites
Transcriptomic Analysis Reveals Evidence for a Cryptic Plastid in the Colpodellid Voromonas pontica, a Close Relative of Chromerids and Apicomplexan Parasites Gillian H. Gile*, Claudio H. Slamovits Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia, Canada Abstract Colpodellids are free-living, predatory flagellates, but their close relationship to photosynthetic chromerids and plastid- bearing apicomplexan parasites suggests they were ancestrally photosynthetic. Colpodellids may therefore retain a cryptic plastid, or they may have lost their plastids entirely, like the apicomplexan Cryptosporidium. To find out, we generated transcriptomic data from Voromonas pontica ATCC 50640 and searched for homologs of genes encoding proteins known to function in the apicoplast, the non-photosynthetic plastid of apicomplexans. We found candidate genes from multiple plastid-associated pathways including iron-sulfur cluster assembly, isoprenoid biosynthesis, and tetrapyrrole biosynthesis, along with a plastid-type phosphate transporter gene. Four of these sequences include the 59 end of the coding region and are predicted to encode a signal peptide and a transit peptide-like region. This is highly suggestive of targeting to a cryptic plastid. We also performed a taxon-rich phylogenetic analysis of small subunit ribosomal RNA sequences from colpodellids and their relatives, which suggests that photosynthesis was lost more than once in colpodellids, and independently in V. pontica and apicomplexans. Colpodellids therefore represent a valuable source of comparative data for understanding the process of plastid reduction in humanity’s most deadly parasite. Citation: Gile GH, Slamovits CH (2014) Transcriptomic Analysis Reveals Evidence for a Cryptic Plastid in the Colpodellid Voromonas pontica, a Close Relative of Chromerids and Apicomplexan Parasites. -
The Florida Red Tide Dinoflagellate Karenia Brevis
G Model HARALG-488; No of Pages 11 Harmful Algae xxx (2009) xxx–xxx Contents lists available at ScienceDirect Harmful Algae journal homepage: www.elsevier.com/locate/hal Review The Florida red tide dinoflagellate Karenia brevis: New insights into cellular and molecular processes underlying bloom dynamics Frances M. Van Dolah a,*, Kristy B. Lidie a, Emily A. Monroe a, Debashish Bhattacharya b, Lisa Campbell c, Gregory J. Doucette a, Daniel Kamykowski d a Marine Biotoxins Program, NOAA Center for Coastal Environmental Health and Biomolecular Resarch, Charleston, SC, United States b Department of Biological Sciences and Roy J. Carver Center for Comparative Genomics, University of Iowa, Iowa City, IA, United States c Department of Oceanography, Texas A&M University, College Station, TX, United States d Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Raleigh, NC, United States ARTICLE INFO ABSTRACT Article history: The dinoflagellate Karenia brevis is responsible for nearly annual red tides in the Gulf of Mexico that Available online xxx cause extensive marine mortalities and human illness due to the production of brevetoxins. Although the mechanisms regulating its bloom dynamics and toxicity have received considerable attention, Keywords: investigation into these processes at the cellular and molecular level has only begun in earnest during Bacterial–algal interactions the past decade. This review provides an overview of the recent advances in our understanding of the Cell cycle cellular and molecular biology on K. brevis. Several molecular resources developed for K. brevis, including Dinoflagellate cDNA and genomic DNA libraries, DNA microarrays, metagenomic libraries, and probes for population Florida red tide genetics, have revolutionized our ability to investigate fundamental questions about K. -
Control of Intestinal Protozoa in Dogs and Cats
Control of Intestinal Protozoa 6 in Dogs and Cats ESCCAP Guideline 06 Second Edition – February 2018 1 ESCCAP Malvern Hills Science Park, Geraldine Road, Malvern, Worcestershire, WR14 3SZ, United Kingdom First Edition Published by ESCCAP in August 2011 Second Edition Published in February 2018 © ESCCAP 2018 All rights reserved This publication is made available subject to the condition that any redistribution or reproduction of part or all of the contents in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise is with the prior written permission of ESCCAP. This publication may only be distributed in the covers in which it is first published unless with the prior written permission of ESCCAP. A catalogue record for this publication is available from the British Library. ISBN: 978-1-907259-53-1 2 TABLE OF CONTENTS INTRODUCTION 4 1: CONSIDERATION OF PET HEALTH AND LIFESTYLE FACTORS 5 2: LIFELONG CONTROL OF MAJOR INTESTINAL PROTOZOA 6 2.1 Giardia duodenalis 6 2.2 Feline Tritrichomonas foetus (syn. T. blagburni) 8 2.3 Cystoisospora (syn. Isospora) spp. 9 2.4 Cryptosporidium spp. 11 2.5 Toxoplasma gondii 12 2.6 Neospora caninum 14 2.7 Hammondia spp. 16 2.8 Sarcocystis spp. 17 3: ENVIRONMENTAL CONTROL OF PARASITE TRANSMISSION 18 4: OWNER CONSIDERATIONS IN PREVENTING ZOONOTIC DISEASES 19 5: STAFF, PET OWNER AND COMMUNITY EDUCATION 19 APPENDIX 1 – BACKGROUND 20 APPENDIX 2 – GLOSSARY 21 FIGURES Figure 1: Toxoplasma gondii life cycle 12 Figure 2: Neospora caninum life cycle 14 TABLES Table 1: Characteristics of apicomplexan oocysts found in the faeces of dogs and cats 10 Control of Intestinal Protozoa 6 in Dogs and Cats ESCCAP Guideline 06 Second Edition – February 2018 3 INTRODUCTION A wide range of intestinal protozoa commonly infect dogs and cats throughout Europe; with a few exceptions there seem to be no limitations in geographical distribution. -
Raphidiophrys Contractilis
Kobe University Repository : Thesis Mechanism of β-1,3-glucan mediated food uptake in the protozoon 学位論文題目 Raphidiophrys contractilis(原生生物Raphidiophrys contractilis におけ Title るβ-1, 3-グルカンが介在する捕食機構) 氏名 MOUSUMI BHADRA Author 専攻分野 博士(理学) Degree 学位授与の日付 2017-09-25 Date of Degree 公開日 2018-09-25 Date of Publication 資源タイプ Thesis or Dissertation / 学位論文 Resource Type 報告番号 甲第7000号 Report Number 権利 Rights JaLCDOI URL http://www.lib.kobe-u.ac.jp/handle_kernel/D1007000 ※当コンテンツは神戸大学の学術成果です。無断複製・不正使用等を禁じます。著作権法で認められている範囲内で、適切にご利用ください。 PDF issue: 2021-10-07 Doctoral Dissertation Mechanism of β-1, 3-glucan mediated food uptake in the protozoon Raphidiophrys contractilis 原生生物 Raphidiophrys contractilis における β-1, 3-グルカンが介在する捕食機構 July 2017 Graduate School of Science Kobe University Mousumi Bhadra Contents Acknowledgements ............................................................................................................ 2 Summary ........................................................................................................................... 3 Chapter 1: Introductory review............................................................................................ 7 Chapter 2: Proteins required for food capturing in Raphidiophrys contractilis..................... 11 2.1. Introduction ....................................................................................................... 11 2.2. Materials and methods ........................................................................................ 15 2.3. Results .............................................................................................................. -
The Mitochondrial Genome and Transcriptome of the Basal
View metadata, citation and similar papers at core.ac.uk brought to you by CORE GBEprovided by PubMed Central The Mitochondrial Genome and Transcriptome of the Basal Dinoflagellate Hematodinium sp.: Character Evolution within the Highly Derived Mitochondrial Genomes of Dinoflagellates C. J. Jackson, S. G. Gornik, and R. F. Waller* School of Botany, University of Melbourne, Australia *Corresponding author: E-mail: [email protected]. Accepted: 12 November 2011 Abstract The sister phyla dinoflagellates and apicomplexans inherited a drastically reduced mitochondrial genome (mitochondrial DNA, mtDNA) containing only three protein-coding (cob, cox1, and cox3) genes and two ribosomal RNA (rRNA) genes. In apicomplexans, single copies of these genes are encoded on the smallest known mtDNA chromosome (6 kb). In dinoflagellates, however, the genome has undergone further substantial modifications, including massive genome amplification and recombination resulting in multiple copies of each gene and gene fragments linked in numerous combinations. Furthermore, protein-encoding genes have lost standard stop codons, trans-splicing of messenger RNAs (mRNAs) is required to generate complete cox3 transcripts, and extensive RNA editing recodes most genes. From taxa investigated to date, it is unclear when many of these unusual dinoflagellate mtDNA characters evolved. To address this question, we investigated the mitochondrial genome and transcriptome character states of the deep branching dinoflagellate Hematodinium sp. Genomic data show that like later-branching dinoflagellates Hematodinium sp. also contains an inflated, heavily recombined genome of multicopy genes and gene fragments. Although stop codons are also lacking for cox1 and cob, cox3 still encodes a conventional stop codon. Extensive editing of mRNAs also occurs in Hematodinium sp. -
Diversity and Evolution of Protist Mitochondria: Introns, Gene Content and Genome Architecture
Diversity and Evolution of Protist Mitochondria: Introns, Gene Content and Genome Architecture 著者 西村 祐貴 内容記述 この博士論文は内容の要約のみの公開(または一部 非公開)になっています year 2016 その他のタイトル プロティストミトコンドリアの多様性と進化:イン トロン、遺伝子組成、ゲノム構造 学位授与大学 筑波大学 (University of Tsukuba) 学位授与年度 2015 報告番号 12102甲第7737号 URL http://hdl.handle.net/2241/00144261 Diversity and Evolution of Protist Mitochondria: Introns, Gene Content and Genome Architecture A Dissertation Submitted to the Graduate School of Life and Environmental Sciences, the University of Tsukuba in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Science (Doctral Program in Biologial Sciences) Yuki NISHIMURA Table of Contents Abstract ........................................................................................................................... 1 Genes encoded in mitochondrial genomes of eukaryotes ..................................................... 3 Terminology .......................................................................................................................... 4 Chapter 1. General introduction ................................................................................ 5 The origin and evolution of mitochondria ............................................................................ 5 Mobile introns in mitochondrial genome .............................................................................. 6 The organisms which are lacking in mitochondrial genome data ........................................ 8 Chapter 2. Lateral transfers of mobile introns