Masterarbeit / Master's Thesis
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History of Myxozoan Character Evolution on the Basis of Rdna and EF-2 Data Ivan Fiala1,2*, Pavla Bartošová1,2
Fiala and Bartošová BMC Evolutionary Biology 2010, 10:228 http://www.biomedcentral.com/1471-2148/10/228 RESEARCH ARTICLE Open Access History of myxozoan character evolution on the basis of rDNA and EF-2 data Ivan Fiala1,2*, Pavla Bartošová1,2 Abstract Background: Phylogenetic relationships among myxosporeans based on ribosomal DNA data disagree with traditional taxonomic classification: a number of myxosporeans with very similar spore morphology are assigned to the same genera even though they are phylogenetically distantly related. The credibility of rDNA as a suitable marker for Myxozoa is uncertain and needs to be proved. Furthermore, we need to know the history of myxospore evolution to understand the great diversity of modern species. Results: Phylogenetic analysis of elongation factor 2 supports the ribosomal DNA-based reconstruction of myxozoan evolution. We propose that SSU rDNA is a reliable marker for inferring myxozoan relationships, even though SSU rDNA analysis markedly disagrees with the current taxonomy. The analyses of character evolution of 15 morphological and 5 bionomical characters show the evolution of individual characters and uncover the main evolutionary changes in the myxosporean spore morphology and bionomy. Most bionomical and several morphological characters were found to be congruent with the phylogeny. The summary of character analyses leads to the simulation of myxozoan ancestral morphotypes and their evolution to the current species. As such, the ancestor of all myxozoans appears to have infected the renal tubules of freshwater fish, was sphaerosporid in shape, and had a spore with polar capsules that discharged slightly sideways. After the separation of Malacosporea, the spore of the common myxosporean ancestor then changed to the typical sphaerosporid morphotype. -
Changes in Opsin Expression Under Varying Light Conditions Differ Between Ecologically Distinct Fish Species Martin Luehrmann1,*,‡, Sara M
© 2018. Published by The Company of Biologists Ltd | Journal of Experimental Biology (2018) 221, jeb175281. doi:10.1242/jeb.175281 RESEARCH ARTICLE Short-term colour vision plasticity on the reef: changes in opsin expression under varying light conditions differ between ecologically distinct fish species Martin Luehrmann1,*,‡, Sara M. Stieb1,2,*,‡, Karen L. Carleton3, Alisa Pietzker1, Karen L. Cheney1,4 and N. Justin Marshall1 ABSTRACT Foote et al., 2004; Miyagi et al., 2012; Rick et al., 2006; Sandkam Vision mediates important behavioural tasks such as mate choice, et al., 2015; Stuart-Fox et al., 2003). Therefore, tuning of escape from predators and foraging. In fish, photoreceptors are photoreceptor spectral sensitivities to specific visual tasks and/or generally tuned to specific visual tasks and/or to their light parts of the light spectrum relevant for such behaviours may be environment, according to depth or water colour to ensure important for maintaining optimal performance (Price, 2017). This optimal performance. Evolutionary mechanisms acting on genes is particularly evident in fish, which have dispersed and adapted to encoding opsin, the protein component of the photopigment, can habitats profoundly different in their light environment, including influence the spectral sensitivity of photoreceptors. Opsin genes freshwater lakes and rivers, marine coastal reefs, pelagic zones and are known to respond to environmental conditions on a number of the deep sea. Considering the light conditions in these environments, time scales, including short time frames due to seasonal variation, fish visual systems have adapted to the overall environmental or through longer-term evolutionary tuning. There is also evidence illumination of their habitat (Cronin et al., 2014; Lythgoe, 1979). -
Assessing Myxozoan Presence and Diversity with Environmental DNA
*Manuscript Click here to view linked References Assessing myxozoan presence and diversity with environmental DNA Hanna Hartikainen1,2,3*, David Bass3,4, Andrew G. Briscoe3, Hazel Knipe3,5, Andy J. Green6, Beth 5 Okamura3 1 Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland 2 Institute for Integrative Biology, ETH Zurich, 8092 Zurich, Switzerland 3 Department of Life Sciences, The Natural History Museum, Cromwell Road, London, SW7 5BD, 10 UK 4 Centre for Environment, Fisheries and Aquaculture Science (Cefas), Barrack Road, The Nothe, Weymouth, Dorset, DT4 8UB, UK 5 Cardiff School of Biosciences, Sir Martin Evans Building, Museum Place, Cardiff, CF10 3AX, UK 15 6Department of Wetland Ecology, Estación Biológica de Doñana, EBD-CSIC, Américo Vespucio s/n, 41092 Sevilla, Spain *Corresponding author: Hanna Hartikainen; Eawag, Ueberlandstrasse 133, Duebendorf, Switzerland; phone: +41 58 765 5446; [email protected] 20 Note: Supplementary data associated with this article Abstract Amplicon sequencing on a High Throughput Sequencing (HTS) platform (custom barcoding) was used to detect and characterise myxosporean communities in environmental DNA samples from 25 marine and freshwater environments and in faeces of animals that may serve as hosts or whose prey may host myxosporean infections. A diversity of myxozoans in filtered water samples and in faeces of piscivores (otters and great cormorants) was detected, demonstrating the suitability of lineage specific amplicons for characterising otherwise difficult to sample parasite communities. The importance of using the approach was highlighted by the lack of myxosporean detection using 30 commonly employed, broadly-targeted eukaryote primers. These results suggest that, despite being frequently present in eDNA samples, myxozoans have been generally overlooked in ‘eukaryote- wide’ surveys. -
Phylogenetic Relationships of the South American Doradoidea (Ostariophysi: Siluriformes)
Neotropical Ichthyology, 12(3): 451-564, 2014 Copyright © 2014 Sociedade Brasileira de Ictiologia DOI: 10.1590/1982-0224-20120027 Phylogenetic relationships of the South American Doradoidea (Ostariophysi: Siluriformes) José L. O. Birindelli A phylogenetic analysis based on 311 morphological characters is presented for most species of the Doradidae, all genera of the Auchenipteridae, and representatives of 16 other catfish families. The hypothesis that was derived from the six most parsimonious trees support the monophyly of the South American Doradoidea (Doradidae plus Auchenipteridae), as well as the monophyly of the clade Doradoidea plus the African Mochokidae. In addition, the clade with Sisoroidea plus Aspredinidae was considered sister to Doradoidea plus Mochokidae. Within the Auchenipteridae, the results support the monophyly of the Centromochlinae and Auchenipterinae. The latter is composed of Tocantinsia, and four monophyletic units, two small with Asterophysus and Liosomadoras, and Pseudotatia and Pseudauchenipterus, respectively, and two large ones with the remaining genera. Within the Doradidae, parsimony analysis recovered Wertheimeria as sister to Kalyptodoras, composing a clade sister to all remaining doradids, which include Franciscodoras and two monophyletic groups: Astrodoradinae (plus Acanthodoras and Agamyxis) and Doradinae (new arrangement). Wertheimerinae, new subfamily, is described for Kalyptodoras and Wertheimeria. Doradinae is corroborated as monophyletic and composed of four groups, one including Centrochir and Platydoras, the other with the large-size species of doradids (except Oxydoras), another with Orinocodoras, Rhinodoras, and Rhynchodoras, and another with Oxydoras plus all the fimbriate-barbel doradids. Based on the results, the species of Opsodoras are included in Hemidoras; and Tenellus, new genus, is described to include Nemadoras trimaculatus, N. -
Redalyc.Kudoa Spp. (Myxozoa, Multivalvulida) Parasitizing Fish Caught in Aracaju, Sergipe, Brazil
Revista Brasileira de Parasitologia Veterinária ISSN: 0103-846X [email protected] Colégio Brasileiro de Parasitologia Veterinária Brasil Costa Eiras, Jorge; Yudi Fujimoto, Rodrigo; Riscala Madi, Rubens; Sierpe Jeraldo, Veronica de Lourdes; Moura de Melo, Cláudia; dos Santos de Souza, Jônatas; Picanço Diniz, José Antonio; Guerreiro Diniz, Daniel Kudoa spp. (Myxozoa, Multivalvulida) parasitizing fish caught in Aracaju, Sergipe, Brazil Revista Brasileira de Parasitologia Veterinária, vol. 25, núm. 4, octubre-diciembre, 2016, pp. 429-434 Colégio Brasileiro de Parasitologia Veterinária Jaboticabal, Brasil Available in: http://www.redalyc.org/articulo.oa?id=397848910008 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Original Article Braz. J. Vet. Parasitol., Jaboticabal, v. 25, n. 4, p. 429-434, out.-dez. 2016 ISSN 0103-846X (Print) / ISSN 1984-2961 (Electronic) Doi: http://dx.doi.org/10.1590/S1984-29612016059 Kudoa spp. (Myxozoa, Multivalvulida) parasitizing fish caught in Aracaju, Sergipe, Brazil Kudoa spp. (Myxozoa, Multivalvulida) parasitando peixes capturados em Aracaju, Sergipe, Brasil Jorge Costa Eiras1; Rodrigo Yudi Fujimoto2; Rubens Riscala Madi3; Veronica de Lourdes Sierpe Jeraldo4; Cláudia Moura de Melo4; Jônatas dos Santos de Souza5; José Antonio Picanço Diniz6; Daniel Guerreiro Diniz7* -
Social Relationships in a Small Habitat-Dependent Coral Reef Fish: an Ecological, Behavioural and Genetic Analysis
ResearchOnline@JCU This file is part of the following reference: Rueger, Theresa (2016) Social relationships in a small habitat-dependent coral reef fish: an ecological, behavioural and genetic analysis. PhD thesis, James Cook University. Access to this file is available from: http://researchonline.jcu.edu.au/46690/ The author has certified to JCU that they have made a reasonable effort to gain permission and acknowledge the owner of any third party copyright material included in this document. If you believe that this is not the case, please contact [email protected] and quote http://researchonline.jcu.edu.au/46690/ Social relationships in a small habitat- dependent coral reef fish: an ecological, behavioural and genetic analysis Thesis submitted by Theresa Rueger, March 2016 for the degree of Doctor of Philosophy College of Marine and Environmental Science & ARC Centre of Excellence for Coral Reef Studies James Cook University Declaration of Ethics This research presented and reported in this thesis was conducted in compliance with the National Health and Medical Research Council (NHMRC) Australian Code of Practice for the Care and Use of Animals for Scientific Purposes, 7th Edition, 2004 and the Qld Animal Care and Protection Act, 2001. The proposed research study received animal ethics approval from the JCU Animal Ethics Committee Approval Number #A1847. Signature ___31/3/2016___ Date i Acknowledgement This thesis was no one-woman show. There is a huge number of people who contributed, directly or indirectly, to its existence. I had amazing support during my field work, by fellow students and good friends Tiffany Sih, James White, Patrick Smallhorn-West, and Mariana Alvarez-Noriega. -
Myxosporea: Ceratomyxidae) to Encompass Freshwater Species C
Erection of Ceratonova n. gen. (Myxosporea: Ceratomyxidae) to Encompass Freshwater Species C. gasterostea n. sp. from Threespine Stickleback (Gasterosteus aculeatus) and C. shasta n. comb. from Salmonid Fishes Atkinson, S. D., Foott, J. S., & Bartholomew, J. L. (2014). Erection of Ceratonova n. gen.(Myxosporea: Ceratomyxidae) to Encompass Freshwater Species C. gasterostea n. sp. from Threespine Stickleback (Gasterosteus aculeatus) and C. shasta n. comb. from Salmonid Fishes. Journal of Parasitology, 100(5), 640-645. doi:10.1645/13-434.1 10.1645/13-434.1 American Society of Parasitologists Accepted Manuscript http://cdss.library.oregonstate.edu/sa-termsofuse Manuscript Click here to download Manuscript: 13-434R1 AP doc 4-21-14.doc RH: ATKINSON ET AL. – CERATONOVA GASTEROSTEA N. GEN. N. SP. ERECTION OF CERATONOVA N. GEN. (MYXOSPOREA: CERATOMYXIDAE) TO ENCOMPASS FRESHWATER SPECIES C. GASTEROSTEA N. SP. FROM THREESPINE STICKLEBACK (GASTEROSTEUS ACULEATUS) AND C. SHASTA N. COMB. FROM SALMONID FISHES S. D. Atkinson, J. S. Foott*, and J. L. Bartholomew Department of Microbiology, Oregon State University, Nash Hall 220, Corvallis, Oregon 97331. Correspondence should be sent to: [email protected] ABSTRACT: Ceratonova gasterostea n. gen. n. sp. is described from the intestine of freshwater Gasterosteus aculeatus L. from the Klamath River, California. Myxospores are arcuate, 22.4 +/- 2.6 µm thick, 5.2 +/- 0.4 µm long, posterior angle 45 +/- 24°, with 2 sub-spherical polar capsules, diameter 2.3 +/- 0.2 µm, which lie adjacent to the suture. Its ribosomal small subunit sequence was most similar to an intestinal parasite of salmonid fishes, Ceratomyxa shasta (97%, 1,671/1,692 nt), and distinct from all other Ceratomyxa species (<85%), which are typically coelozoic parasites in the gall bladder or urinary system of marine fishes. -
Unesco-Eolss Sample Chapters
FISHERIES AND AQUACULTURE - Myxozoan Biology And Ecology - Dr. Ariadna Sitjà-Bobadilla and Oswaldo Palenzuela MYXOZOAN BIOLOGY AND ECOLOGY Ariadna Sitjà-Bobadilla and Oswaldo Palenzuela Instituto de Acuicultura Torre de la Sal, Consejo Superior de Investigaciones Científicas (IATS-CSIC), Castellón, Spain Keywords: Myxozoa, Myxosporea, Actinosporea, Malacosporea, Metazoa, Parasites, Fish Pathology, Invertebrates, Taxonomy, Phylogeny, Cell Biology, Life Cycle Contents 1. Introduction 2. Phylogeny 3. Morphology and Taxonomy 3.1. Spore Morphology 3.2. Taxonomy 4. Life Cycle 4.1. Life Cycle of Myxosporea 4.2. Life Cycle of Malacosporea 5. Cell Biology and Development 6. Ecological Aspects 6.1. Hosts 6.2. Habitats 6.3. Environmental Cues 7. Pathology 7.1. General Remarks 7.2. Pathogenic Effects of Myxozoans 7.2.1. Effects on Invertebrates 7.2.2. Effects on Fish 7.2.3. Effects on non-fish Vertebrates Acknowledgements Glossary Bibliography Biographical Sketches Summary UNESCO-EOLSS The phylum Myxozoa is a group of microscopic metazoans with an obligate endoparasitic lifestyle.SAMPLE Traditionally regarded CHAPTERS as protists, research findings during the last decades have dramatically changed our knowledge of these organisms, nowadays understood as examples of early metazoan evolution and extreme adaptation to parasitic lifestyles. Two distinct classes of myxozoans, Myxosporea and Malacosporea, are characterized by profound differences in rDNA evolution and well supported by differential biological and developmental features. This notwithstanding, most of the existing Myxosporea subtaxa require revision in the light of molecular phylogeny data. Most known myxozoans exhibit diheteroxenous cycles, alternating between a vertebrate host (mostly fish but also other poikilothermic vertebrates, and exceptionally birds and mammals) and an invertebrate (mainly annelids and bryozoans but possibly other ©Encyclopedia of Life Support Systems (EOLSS) FISHERIES AND AQUACULTURE - Myxozoan Biology And Ecology - Dr. -
Interacting Effects of Elevated Temperature and Ocean Acidification on the Aerobic Performance of Coral Reef Fishes
Vol. 388: 235–242, 2009 MARINE ECOLOGY PROGRESS SERIES Published August 19 doi: 10.3354/meps08137 Mar Ecol Prog Ser Interacting effects of elevated temperature and ocean acidification on the aerobic performance of coral reef fishes Philip L. Munday1, 2,*, Natalie E. Crawley1, 2, Göran E. Nilsson3 1ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville 4811, Australia 2School of Marine and Tropical Biology, James Cook University, Townsville 4811, Australia 3Physiology Programme, Department of Molecular Biosciences, University of Oslo, PO Box 1041, 0316 Oslo, Norway ABSTRACT: Concerns about the impacts of ocean acidification on marine life have mostly focused on how reduced carbonate saturation affects calcifying organisms. Here, we show that levels of CO2-induced acidification that may be attained by 2100 could also have significant effects on marine organisms by reducing their aerobic capacity. The effects of temperature and acidification on oxygen consumption were tested in 2 species of coral reef fishes, Ostorhinchus doederleini and O. cyanosoma, from the Great Barrier Reef, Australia. The capacity for aerobic activity (aerobic scope) declined at temperatures above the summer average (29°C) and in CO2-acidified water (pH 7.8 and ~1000 ppm CO2) compared to control water (pH 8.15). Aerobic scope declined by 36 and 32% for O. doederleini and O. cyanosoma at temperatures between 29 to 32°C, whereas it declined by 33 and 47% for O. doederleini and O. cyanosoma in acidified water compared to control water. Thus, the declines in aerobic scope in acidified water were similar to those caused by a 3°C increase in water –1 –1 temperature. -
Universidade De São Paulo Faculdade De Zootecnia E Engenharia De Alimentos
UNIVERSIDADE DE SÃO PAULO FACULDADE DE ZOOTECNIA E ENGENHARIA DE ALIMENTOS AMANDA MURAROLLI RIBEIRO Detecção de mixosporídeos por PCR em Tempo Real e PCR Convencional em amostras de água de pisciculturas Pirassununga 2020 AMANDA MURAROLLI RIBEIRO Detecção de mixosporídeos por PCR em Tempo Real e PCR Convencional em amostras de água de pisciculturas Versão Corrigida Dissertação apresentada ao Programa de Pós- Graduação em Zootecnia da Faculdade de Zootecnia e Engenharia de Alimentos da Universidade de São Paulo, como parte dos requisitos para a obtenção de título de Mestra em Ciências. Área de Concentração: Qualidade e Produtividade Animal Orientador: Prof. Dr. Antonio Augusto Mendes Maia Pirassununga 2020 Ficha catalográfica elaborada pelo Serviço de Biblioteca e Informações, FZEA/USP, com os dados fornecidos pelo(a) autor(a) Ribeiro , Amanda Murarolli R484d Detecção de mixosporídeos por PCR em Tempo Real e PCR Convencional em amostras de água de pisciculturas / Amanda Murarolli Ribeiro ; orientador Professor Dr. Antonio Augusto Mendes Maia. -- Pirassununga, 2020. 89 f. Dissertação (Mestrado - Programa de Pós-Graduação em Zootecnia) -- Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo. 1. Myxozoa. 2. eDNA. 3. Peixes. 4. SSrDNA. 5. Diagnóstico. I. Maia, Professor Dr. Antonio Augusto Mendes, orient. II. Título. Permitida a cópia total ou parcial deste documento, desde que citada a fonte - o autor AMANDA MURAROLLI RIBEIRO Detecção de mixosporídeos por PCR em Tempo Real e PCR Convencional em amostras de água de pisciculturas Dissertação apresentada ao Programa de Pós- Graduação em Zootecnia da Faculdade de Zootecnia e Engenharia de Alimentos da Universidade de São Paulo, como parte dos requisitos para a obtenção de título de Mestra em Ciências. -
CNIDARIA Corals, Medusae, Hydroids, Myxozoans
FOUR Phylum CNIDARIA corals, medusae, hydroids, myxozoans STEPHEN D. CAIRNS, LISA-ANN GERSHWIN, FRED J. BROOK, PHILIP PUGH, ELLIOT W. Dawson, OscaR OcaÑA V., WILLEM VERvooRT, GARY WILLIAMS, JEANETTE E. Watson, DENNIS M. OPREsko, PETER SCHUCHERT, P. MICHAEL HINE, DENNIS P. GORDON, HAMISH J. CAMPBELL, ANTHONY J. WRIGHT, JUAN A. SÁNCHEZ, DAPHNE G. FAUTIN his ancient phylum of mostly marine organisms is best known for its contribution to geomorphological features, forming thousands of square Tkilometres of coral reefs in warm tropical waters. Their fossil remains contribute to some limestones. Cnidarians are also significant components of the plankton, where large medusae – popularly called jellyfish – and colonial forms like Portuguese man-of-war and stringy siphonophores prey on other organisms including small fish. Some of these species are justly feared by humans for their stings, which in some cases can be fatal. Certainly, most New Zealanders will have encountered cnidarians when rambling along beaches and fossicking in rock pools where sea anemones and diminutive bushy hydroids abound. In New Zealand’s fiords and in deeper water on seamounts, black corals and branching gorgonians can form veritable trees five metres high or more. In contrast, inland inhabitants of continental landmasses who have never, or rarely, seen an ocean or visited a seashore can hardly be impressed with the Cnidaria as a phylum – freshwater cnidarians are relatively few, restricted to tiny hydras, the branching hydroid Cordylophora, and rare medusae. Worldwide, there are about 10,000 described species, with perhaps half as many again undescribed. All cnidarians have nettle cells known as nematocysts (or cnidae – from the Greek, knide, a nettle), extraordinarily complex structures that are effectively invaginated coiled tubes within a cell. -
Redalyc.Observations on the Infection by Kudoa Sp. (Myxozoa
Acta Scientiarum. Biological Sciences ISSN: 1679-9283 [email protected] Universidade Estadual de Maringá Brasil Costa Eiras, Jorge; Pereira Júnior, Joaber; Saraiva, Aurélia; Faria Cruz, Cristina Observations on the Infection by Kudoa sp. (Myxozoa, Multivalvulida) in fishes caught off Rio Grande, Rio Grande do Sul State, Brazil Acta Scientiarum. Biological Sciences, vol. 38, núm. 1, enero-marzo, 2016, pp. 99-103 Universidade Estadual de Maringá Maringá, Brasil Available in: http://www.redalyc.org/articulo.oa?id=187146621013 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Acta Scientiarum http://www.uem.br/acta ISSN printed: 1679-9283 ISSN on-line: 1807-863X Doi: 10.4025/actascibiolsci.v38i1.30492 Observations on the Infection by Kudoa sp. (Myxozoa, Multivalvulida) in fishes caught off Rio Grande, Rio Grande do Sul State, Brazil Jorge Costa Eiras¹*, Joaber Pereira Júnior², Aurélia Saraiva¹ and Cristina Faria Cruz¹ ¹Departamento de Biologia, Centro Interdisciplinar de Investigação Marinha e Ambiental, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, Edifício FC4, 4169-007, Porto, Porto, Portugal. ²Instituto de Oceanografia, Centro de Biotecnologia e Diagnose de Doenças de Animais Aquáticos, Universidade Federal do Rio Grande, Rio Grande, Rio Grande do Sul, Brazil. *Author for correspondence. E-mail: [email protected] ABSTRACT. It is reported the parasitization of Kudoa sp. (Myxozoa, Multivalvulida) within the somatic muscles of the fish Odontesthes bonariensis (Valenciennes, 1835), Micropogonias furnieri (Desmarest, 1823) and Mugil liza Valenciennes, 1836, captured off Rio Grande, Rio Grande do Sul State, Brazil.