The Initial Response of Females Towards Congeneric Males Matches the Propensity to Hybridize
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Ophthalmotilapia Boops (BOULENGER, 1901)
DCG_Info_05_2016_HR_20160420_Karlsson_ohne_Haustein_DCG_Info 20.04.2016 06:36 Seite 106 Ophthalmotilapia boops (BOULENGER, 1901) Wolfgang Staeck Abb. 1. Männchen von Ophthalmotilapia boops über seiner Laichgrube auf einem Felsen bei Kampemba Point (Kleines Bild: Ophthalmotilapia boops und Tropheus bei Kampemba Point) Meine erste Begegnung mit diesem un- Beide sprachen kein Englisch, sondern geografische Farbvariante von Oph- gewöhnlichen Tanganjikasee-Bunt- unterhielten sich gewöhnlich auf Sua- thalmotilapia ventralis hielt, zu fangen, barsch liegt nun bereits fast vierzig heli, das ich nicht beherrschte. Da in weil wir nicht über die dazu benötigte Jahre zurück. Im Jahre 1977 bereiste Burundi aber neben der afrikanischen Ausrüstung verfügten, um sie heil bis ich zusammen mit zwei Fängern des Muttersprache auch Französisch ge- in das weit entfernte Kigoma zu trans- damals in Dar es Salaam lebenden Ex- sprochen wurde, war die Kommunika- portieren. porteurs Misha Fainzilber in einem der tion in unserer kleinen Reisegruppe dort üblichen motorisierten Fischer- kein unlösbares Problem. Systematik und Merkmale von Oph- boote von Kigoma aus die zu Tansania thalmotilapia gehörende Ostküste des Tanganjikasees Ich erinnere mich noch genau über in südlicher Richtung bis nach Kipili. meine Begeisterung, als ich in der Um- Ophthalmotilapia boops gehört zu den Ziel unserer fast drei Wochen dauern- gebung der Ortschaft Kipili schnor- ersten Arten, die aus dem Tanganjika- den Entdeckungsreise war es, für den chelte und dort im Uferbereich der see beschrieben wurden, denn die bei- Exporteur eine erste Bestandsaufnahme Insel Kerenge erstmals die auffallend den Typusexemplare sind von dem der in diesem Gebiet vorkommenden kontrastreich tief schwarz und leuch- englischen Forschungsreisenden MOORE Buntbarsche vorzunehmen. tend hellblau gezeichneten Männchen bereits gegen Ende des 19. -
The Initial Response of Females Towards Congeneric Males Matches the Propensity to Hybridize
bioRxiv preprint doi: https://doi.org/10.1101/2021.08.07.455508; this version posted August 8, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. 1 The initial response of females towards congeneric males matches the propensity to hybridize 2 in Ophthalmotilapia. 3 4 Maarten Van Steenberge1,2, Noémie Jublier3,4, Loïc Kéver3, Sophie Gresham1,5, Sofie 5 Derycke1,6, Jos Snoeks2,7, Eric Parmentier3, Pascal Poncin4, Erik Verheyen1,5 6 7 1. Operational Directorate Taxonomy and phylogeny, Royal Belgian Institute of Natural 8 Sciences, 1000 Brussels, Belgium 9 2. Laboratory of Biodiversity and Evolutionary Genomics, KU Leuven, Charles 10 Deberiotstraat 32, 3000 Leuven, Belgium 11 3. Laboratory of Functional and Evolutionary Biology, FOCUS, Liège University, 4000 12 Liège, Belgium 13 4. Laboratory of Fish and Amphibian Ethology, Behavioural Biology Unit, FOCUS, 14 Liège University, 4000 Liège, Belgium 15 5. Department Biology, Evolutionary Ecology, University of Antwerp, 2610 Antwerp, 16 Belgium 17 6. Flanders research institute for agriculture, fisheries and food, Animal Sciences Unit – 18 Aquatic Environment and Quality, Ankerstraat 1, 8400 Oostende, Belgium. 19 7. Section Vertebrates, Ichthyology, Royal Museum for Central Africa, 3080 Tervuren, 20 Belgium 21 22 Corresponding author: Maarten Van Steenberge ([email protected]) 23 24 Key words: 25 Species recognition, mate choice, behaviour, Lake Tanganyika, Africa 1 bioRxiv preprint doi: https://doi.org/10.1101/2021.08.07.455508; this version posted August 8, 2021. -
And Giant Guitarfish (Rhynchobatus Djiddensis)
VIRAL DISCOVERY IN BLUEGILL SUNFISH (LEPOMIS MACROCHIRUS) AND GIANT GUITARFISH (RHYNCHOBATUS DJIDDENSIS) BY HISTOPATHOLOGY EVALUATION, METAGENOMIC ANALYSIS AND NEXT GENERATION SEQUENCING by JENNIFER ANNE DILL (Under the Direction of Alvin Camus) ABSTRACT The rapid growth of aquaculture production and international trade in live fish has led to the emergence of many new diseases. The introduction of novel disease agents can result in significant economic losses, as well as threats to vulnerable wild fish populations. Losses are often exacerbated by a lack of agent identification, delay in the development of diagnostic tools and poor knowledge of host range and susceptibility. Examples in bluegill sunfish (Lepomis macrochirus) and the giant guitarfish (Rhynchobatus djiddensis) will be discussed here. Bluegill are popular freshwater game fish, native to eastern North America, living in shallow lakes, ponds, and slow moving waterways. Bluegill experiencing epizootics of proliferative lip and skin lesions, characterized by epidermal hyperplasia, papillomas, and rarely squamous cell carcinoma, were investigated in two isolated poopulations. Next generation genomic sequencing revealed partial DNA sequences of an endogenous retrovirus and the entire circular genome of a novel hepadnavirus. Giant Guitarfish, a rajiform elasmobranch listed as ‘vulnerable’ on the IUCN Red List, are found in the tropical Western Indian Ocean. Proliferative skin lesions were observed on the ventrum and caudal fin of a juvenile male quarantined at a public aquarium following international shipment. Histologically, lesions consisted of papillomatous epidermal hyperplasia with myriad large, amphophilic, intranuclear inclusions. Deep sequencing and metagenomic analysis produced the complete genomes of two novel DNA viruses, a typical polyomavirus and a second unclassified virus with a 20 kb genome tentatively named Colossomavirus. -
Spatial Models of Speciation 1.0Cm Modelos Espaciais De Especiação
UNIVERSIDADE ESTADUAL DE CAMPINAS INSTITUTO DE BIOLOGIA CAROLINA LEMES NASCIMENTO COSTA SPATIAL MODELS OF SPECIATION MODELOS ESPACIAIS DE ESPECIAÇÃO CAMPINAS 2019 CAROLINA LEMES NASCIMENTO COSTA SPATIAL MODELS OF SPECIATION MODELOS ESPACIAIS DE ESPECIAÇÃO Thesis presented to the Institute of Biology of the University of Campinas in partial fulfill- ment of the requirements for the degree of Doc- tor in Ecology Tese apresentada ao Instituto de Biologia da Universidade Estadual de Campinas como parte dos requisitos exigidos para a obtenção do título de Doutora em Ecologia Orientador: Marcus Aloizio Martinez de Aguiar ESTE ARQUIVO DIGITAL CORRESPONDE À VERSÃO FINAL DA TESE DEFENDIDA PELA ALUNA CAROLINA LEMES NASCIMENTO COSTA, E ORIENTADA PELO PROF DR. MAR- CUS ALOIZIO MARTINEZ DE AGUIAR. CAMPINAS 2019 Ficha catalográfica Universidade Estadual de Campinas Biblioteca do Instituto de Biologia Mara Janaina de Oliveira - CRB 8/6972 Costa, Carolina Lemes Nascimento, 1989- C823s CosSpatial models of speciation / Carolina Lemes Nascimento Costa. – Campinas, SP : [s.n.], 2019. CosOrientador: Marcus Aloizio Martinez de Aguiar. CosTese (doutorado) – Universidade Estadual de Campinas, Instituto de Biologia. Cos1. Especiação. 2. Radiação adaptativa (Evolução). 3. Modelos biológicos. 4. Padrão espacial. 5. Macroevolução. I. Aguiar, Marcus Aloizio Martinez de, 1960-. II. Universidade Estadual de Campinas. Instituto de Biologia. III. Título. Informações para Biblioteca Digital Título em outro idioma: Modelos espaciais de especiação Palavras-chave em inglês: Speciation Adaptive radiation (Evolution) Biological models Spatial pattern Macroevolution Área de concentração: Ecologia Titulação: Doutora em Ecologia Banca examinadora: Marcus Aloizio Martinez de Aguiar [Orientador] Mathias Mistretta Pires Sabrina Borges Lino Araujo Rodrigo André Caetano Gustavo Burin Ferreira Data de defesa: 25-02-2019 Programa de Pós-Graduação: Ecologia Powered by TCPDF (www.tcpdf.org) Comissão Examinadora: Prof. -
Interim Report IR-11-026 Repeated Unidirectional Introgression Of
International Institute for Tel: +43 2236 807 342 Applied Systems Analysis Fax: +43 2236 71313 Schlossplatz 1 E-mail: [email protected] A-2361 Laxenburg, Austria Web: www.iiasa.ac.at Interim Report IR-11-026 Repeated unidirectional introgression of nuclear and mitochondrial DNA between four congeneric Tanganyikan cichlids Bruno Nevado ([email protected]) Varvara Fazalova ([email protected]) Thierry Backeljau ([email protected]) Mark Hanssens ([email protected]) Erik Verheyen ([email protected]) Approved by Ulf Dieckmann Program Leader, EEP June 2011 Interim Reports on work of the International Institute for Applied Systems Analysis receive only limited review. Views or opinions expressed herein do not necessarily represent those of the Institute, its National Member Organizations, or other organizations supporting the work. Repeated unidirectional introgression of nuclear and mitochondrial DNA between four congeneric Tanganyikan cichlids Manuscript submitted to Molecular Biology and Evolution as a research article Running title: Interspecific geneflow in Ophthalmotilapia spp. Bruno Nevado 1,2, Varvara Fazalova 3,4, Thierry Backeljau 1,2, Mark Hanssens 5 and Erik Verheyen 1,2 1- Royal Belgian Institute of Natural Sciences, R. Vautier 29, 1000 Brussels, Belgium 2- Evolutionary Ecology Group, University of Antwerp, Groenenborgerlaan 171, B- 2020 Antwerp, Belgium 3- Limnological Institute of the Siberian Branch of the Russian Academy of Sciences, Ulan-Batorskaya 3, 664033 Irkutsk, Russia 4- Evolution and Ecology Program, International Institute for Applied Systems Analysis, Schlossplatz 1, A-2361 Laxenburg, Austria 5-Royal Museum for Central Africa, Leuvensesteenweg 13, 3080 Tervuren, Belgium Keywords: hybridization, introgression, mtDNA, nuclear DNA, Ophthalmotilapia spp. -
Comparative Phylogenetic Analyses of the Adaptive Radiation of Lake
J Mol Evol (2005) 61:666–681 DOI: 10.1007/s00239-004-0217-2 Comparative Phylogenetic Analyses of the Adaptive Radiation of Lake Tanganyika Cichlid Fish: Nuclear Sequences Are Less Homoplasious But Also Less Informative Than Mitochondrial DNA Ce´ line Clabaut,1 Walter Salzburger,1,2 Axel Meyer1 1 Lehrstuhl fu¨ r Zoologie und Evolutionsbiologie, Department of Biology, University of Konstanz, 78457 Konstanz, Germany 2 Center for Junior Research Fellows, University of Konstanz, 78457 Konstanz, Germany Received: 15 July 2004 / Accepted: 5 May 2005 [Reviewing Editor: Dr. Rafael Zardoya] Abstract. Over 200 described endemic species make much phylogenetic information as we expected, we up the adaptive radiation of cichlids in Lake Tanga- suggest that this marker might be useful in the reso- nyika. This species assemblage has been viewed as lution of the phylogeny of older groups. both an evolutionary reservoir of old cichlid lineages and an evolutionary hotspot from which the modern Key words: Adaptive radiation — Cichlid species cichlid lineages arose, seeding the adaptive radiations flocks — Explosive speciation — Nuclear DNA in Lakes Victoria and Malawi. Here we report on a phylogeny — NADH Dehydrogenase Subunit II — phylogenetic analysis of Lake Tanganyika cichlids RAG1 — C-lineage combining the previously determined sequences of the mitochondrial ND2 gene (1047 bp) with newly derived sequences of the nuclear RAG1 gene (700 bp of intron 2 and 1100 bp of exon 3). The nuclear data—in agreement with mitochondrial DNA—sug- Introduction gest that Lake Tanganyika harbors several ancient lineages that did not undergo rampant speciation The Great Lakes of East Africa are among the worldÕs (e.g., Bathybatini, Trematocarini). -
Eine Neue Geografische Farbvariante Von Ophthalmotilapia Sp. „Whitecap“
Die neue Farbvariante von Ophthalmotilapia sp. „Whitecap“ im flachen Wasser bei der Ortschaft Ninde. Eine neue geografische Farbvariante von Ophthalmotilapia sp. „Whitecap“ Text: Wolfgang Staeck Fotos: Magnus und Mikael Karlsson Zu den bemerkenswertesten Buntbar- dieser Buntbarsche in ungewöhnlicher gelegen, wurde diese Farbform, die die schen des Tanganjikasees zählen wegen Weise ver längert und fadenartig ausge- südlichste Population von Ophthalmo- ihrer prächtigen Färbung und unge- zogen sind. Wahrscheinlich existieren tilapia sp. „Whitecap“ ist, nicht mehr wöhnlichen Flossenform zweifellos die aber auch noch unbeschriebene Arten. gefunden. Vertreter der Gattung Ophthalmotila- pia, die von PELLEGRIN bereits im Jahre Die jetzt erstmals im Foto vorgestellte Nach den Beobachtungen der Entde- 1904 beschrieben wurde. POLL über- Farbform von Ophthalmotilapia sp. cker haben die Fische eine ungewöhn- führte später einen Teil der Arten „Whitecap“ wurde von Magnus und lich geringe Individuendichte und sind wegen ihrer ausschließlich kegelförmi- Mikael KARLSSON schon im Jahr 2008 deshalb an den meisten Fundorten sel- gen Zähne, die nicht dreispitzig sind, entdeckt, als sie an der zu Tansania ge- ten. KARLSSON & KARLSSON führen sondern nur eine Spitze haben, in die hörenden südlichen Küste des Tanga- von ihm neu aufgestellte Gattung Oph- njikasees eine Dokumentation der thalmochromis (1956), was jedoch Verbreitungsgrenzen der dort vorkom- LIEM (1981) in einer Revision dieses menden Buntbarsche durchführten Verwandtschaftskreises wieder rück- (KARLSSON & KARLSSON 2013). Die gängig machte und die Gattung zum neue Farbvariante kommt südlich von jüngeren Synonym für Ophthalmotila- Kipili an einem nur 16 Kilometer lan- pia erklärte. Nach POLL (1986) enthält gen Küstenstreifen zwischen Pinga Ophthalmotilapia vier Arten, die in der Point (nahe der Ortschaft Mkilinga) Aquaristik unter der Bezeichnung Fa- und Chisanze Point (nördlich der Nordseite des Dorfes Ninde Village. -
The Use of Different Sensory Modalities in Predator Discrimination
Behav Ecol Sociobiol (2017) 71: 143 DOI 10.1007/s00265-017-2371-8 ORIGINAL ARTICLE Smell or vision? The use of different sensory modalities in predator discrimination Stefan Fischer1,2,3 & Evelyne Oberhummer1 & Filipa Cunha-Saraiva1,4 & Nina Gerber1,5 & Barbara Taborsky1 Received: 6 November 2016 /Revised: 19 August 2017 /Accepted: 28 August 2017 /Published online: 8 September 2017 # The Author(s) 2017. This article is an open access publication Abstract to a standardized threat stimulus combined with either preda- Theory predicts that animals should adjust their escape re- tor or non-predator cues presented either visually or chemical- sponses to the perceived predation risk. The information ani- ly. We predicted that flight responses towards a threat stimulus mals obtain about potential predation risk may differ qualita- are more pronounced if cues of dangerous rather than harm- tively depending on the sensory modality by which a cue is less heterospecifics are presented and that N. pulcher,beingan perceived. For instance, olfactory cues may reveal better in- aquatic species, relies more on olfaction when discriminating formation about the presence or absence of threats, whereas between dangerous and harmless heterospecifics. N. pulcher visual information can reliably transmit the position and po- responded faster to the threat stimulus, reached a refuge faster tential attack distance of a predator. While this suggests a and entered a refuge more likely when predator cues were differential use of information perceived through the two sen- perceived. Unexpectedly, the sensory modality used to per- sory channels, the relative importance of visual vs. olfactory ceive the cues did not affect the escape response or the dura- cues when distinguishing between different predation threats tion of the recovery phase. -
New Fossils of Cichlids from the Miocene of Kenya and Clupeids from the Miocene of Greece (Teleostei)
The importance of articulated skeletons in the identification of extinct taxa: new fossils of cichlids from the Miocene of Kenya and clupeids from the Miocene of Greece (Teleostei) Dissertation zur Erlangung des Doktorgrades an der Fakultät für Geowissenschaften der Ludwig-Maximilians-Universität München Vorgelegt von Charalampos Kevrekidis München, 28. September 2020 Erstgutacher: Prof. Dr. Bettina Reichenbacher Zweitgutacher: PD Dr. Gertrud Rößner Tag der mündlichen Prüfung: 08.02.2021 2 Statutory declaration and statement I hereby confirm that my Thesis entitled “Fossil fishes from terrestrial sediments of the Miocene of Africa and Europe”, is the result of my own original work. Furthermore, I certify that this work contains no material which has been accepted for the award of any other degree or diploma in my name, in any university and, to the best of my knowledge and belief, contains no material previously published or written by another person, except where due reference has been made in the text. In addition, I certify that no part of this work will, in the future, be used in a submission in my name, for any other degree or diploma in any university or other tertiary institution without the prior approval of the Ludwig-Maximilians-Universität München. München, 21.09.2020 Charalampos Kevrekidis 3 Abstract Fishes are important components of aquatic faunas, but our knowledge on the fossil record of some taxa, relative to their present diversity, remains poor. This can be due to a rarity of such fossils, as is the case for the family Cichlidae (cichlids). Another impediment is the rarity of well-preserved skeletons of fossil fishes. -
Testing the Potential of Environmental DNA Methods for Surveying Lake Tanganyika's Highly Diverse Fish Communities Christopher J
Testing the potential of environmental DNA methods for surveying Lake Tanganyika's highly diverse fish communities Christopher James Doble A thesis submitted for the degree of Doctor of Philosophy Department of Genetics, Evolution and Environment University College London April 2020 1 Declaration I, Christopher James Doble, confirm the work presented in this thesis is my own. Where information has been derived from other sources, I confirm this has been indicated in the thesis. Christopher James Doble Date: 27/04/2020 2 Statement of authorship I planned and undertook fieldwork to the Kigoma region of Lake Tanganyika, Tanzania in 2016 and 2017. This included obtaining research permits, collecting environmental DNA samples and undertaking fish community visual survey data used in Chapters three and four. For Chapter two, cichlid reference database sequences were sequenced by Walter Salzburger’s research group at the University of Basel. I extracted required regions from mitochondrial genome alignments during a visit to Walter’s research group. Other reference sequences were obtained by Sanger sequencing. I undertook the DNA extractions and PCR amplifications for all samples, with the clean-up and sequencing undertaken by the UCL Sequencing facility. I undertook the method development, DNA extractions, PCR amplifications and library preparations for each of the next generation sequencing runs in Chapters three and four at the NERC Biomolecular Analysis Facility Sheffield. Following training by Helen Hipperson at the NERC Biomolecular Analysis Facility in Sheffield, I undertook the bioinformatic analysis of sequence data in Chapters three and four. I also carried out all the data analysis within each chapter. Chapters two, three and parts of four have formed a manuscript recently published in Environmental DNA (Doble et al. -
Community Genetics Reveal Elevated Levels of Sympatric Gene Flow Among Morphologically Similar but Not Among Morphologically Dissimilar Species of Lake Victoria Cichlid Fish
SAGE-Hindawi Access to Research International Journal of Evolutionary Biology Volume 2011, Article ID 616320, 12 pages doi:10.4061/2011/616320 Research Article Community Genetics Reveal Elevated Levels of Sympatric Gene Flow among Morphologically Similar but Not among Morphologically Dissimilar Species of Lake Victoria Cichlid Fish N. Konijnendijk,1, 2, 3 D. A. Joyce,2, 4 H. D. J. Mrosso,2, 5 M. Egas,3 and O. Seehausen1, 2 1 Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, CH-3012 Bern, Switzerland 2 EAWAG, Center for Ecology, Evolution and Biogeochemistry (CEEB), Seestrasse 79, CH-6047 Kastanienbaum, Switzerland 3 Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands 4 Department of Biological Sciences, University of Hull, Hull HU6 7RX, UK 5 Tanzanian Fisheries Research Institute, P.O. Box 475, Mwanza, Tanzania Correspondence should be addressed to O. Seehausen, [email protected] Received 6 February 2011; Revised 18 May 2011; Accepted 11 July 2011 Academic Editor: Stephan Koblmuller¨ Copyright © 2011 N. Konijnendijk et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. We examined genetic structure among five species of Lake Victoria haplochromine cichlids in four island communities, using a full factorial sampling design that compared genetic differentiation between pairs of species and populations of varying morphological similarity and geographical proximity. We found that allopatric conspecific populations were on average significantly more strongly differentiated than sympatric heterospecific populations of morphologically similar species. -
Masaryk University Faculty of Science
MASARYK UNIVERSITY FACULTY OF SCIENCE The parasite fauna of economically important pelagic fishes in Lake Tanganyika Ph.D. Thesis NIKOL KMENTOVÁ Supervisor: Maarten Vanhove, Ph.D. Department of Botany and Zoology Brno 2019 Bibliographic Entry Author Mgr. Nikol Kmentová Faculty of Science, Masaryk University Department of Botany and Zoology Title of Thesis: The parasite fauna of economically important pelagic fishes in Lake Tanganyika Degree programme: Ecological and Evolutionary Biology Specialization: Parasitology Supervisor: Maarten Vanhove, Ph.D. Academic Year: 2019/2020 Number of Pages: 350 + 72 Keywords: Kapentagyrus, Dolicirrolectanum, Cryptogonimidae, Clupeidae, Latidae, Bathybatini Bibliografický záznam Autor: Mgr. Nikol Kmentová Přírodovědecká fakulta, Masarykova univerzita Ústav botaniky a zoologie Název práce: Parazité ekonomicky významných ryb pelagické zóny jezera Tanganika Studijní program: Ekologická a evoluční biologie Specializace: Parazitologie Vedoucí práce: Maarten Vanhove, Ph.D. Akademický rok: 2019/2020 Počet stran: 350 + 72 Klíčová slova: Kapentagyrus, Dolicirrolectanum, Cryptogonimidae, Clupeidae, Latidae, Bathybatini ABSTRACT Biodiversity is a well-known term characterising the variety and variability of life on Earth. It consists of many different levels with species richness as the most frequently used measure. Despite its generally lower species richness compared to littoral zones, the global importance of the pelagic realm in marine and freshwater ecosystems lies in the high level of productivity supporting fisheries worldwide. In terms of endemicity, Lake Tanganyika is one of the most exceptional freshwater study areas in the world. While dozens of studies focus on this lake’s cichlids as model organisms, our knowledge about the economically important fish species is still poor. Despite their important role in speciation processes, parasite taxa have been vastly ignored in the African Great Lakes including Lake Tanganyika for many years.