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Dissertations / Theses on the topic 'Platypus'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2024

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1

Macgregor, James. "Conservation of the platypus (Ornithorhynchus anatinus): Development of a framework to assess the health of wild platypus populations." Thesis, Macgregor, James (2015) Conservation of the platypus (Ornithorhynchus anatinus): Development of a framework to assess the health of wild platypus populations. PhD thesis, Murdoch University, 2015. https://researchrepository.murdoch.edu.au/id/eprint/28417/.

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A wide range of factors, including individual animal health, genetic diversity and demographics, are associated with wildlife population declines and investigation of these factors may be more sensitive in detecting early impacts on wildlife populations, than estimates of population size alone. Defining wildlife population health as the ability of a wildlife population to remain viable in the long term, this project developed and implemented a holistic health assessment framework for platypuses to gather baseline data, to investigate environmental, temporal and individual patterns within this

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2

Endo, Rikiya. "Symbiotic fungi of the ambrosia beetle Platypus quercivorus." Kyoto University, 2011. http://hdl.handle.net/2433/142336.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第16138号<br>農博第1874号<br>新制||農||991(附属図書館)<br>学位論文||H23||N4608(農学部図書室)<br>28717<br>京都大学大学院農学研究科地域環境科学専攻<br>(主査)教授二井一禎, 教授北山兼弘, 教授藤崎憲治<br>学位規則第4条第1項該当

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3

Whittington, Camilla Marie. "Evolution of venom : gene discovery in the platypus." Thesis, The University of Sydney, 2010. https://hdl.handle.net/2123/28904.

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The research contained within this dissertation aims to shed light onto the basic biology of one of Australia’s unique native wildlife species, the platypus. In particular, it aims to broaden our knowledge of mammalian venom, by bioinformatic identification of genes encoding known platypus venom components, phylogenetic analyses of platypus and other animal venom toxins, and investigation of tissue expression patterns of platypus venom and related non venom genes. Finally, this research culminates in the use of a platypus venom transcriptome to identify previously unknown platypus venom toxins

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4

Connolly, Joanne H. "Immunopathological characterisation of infectious diseases of the koala and the platypus." Thesis, The University of Sydney, 2000. http://hdl.handle.net/2123/8428.

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This study characterised the pathological and immunopathological features of selected infectious diseases in the koala and the platypus. Originally, lymphosarcoma, cryptococcosis and chlamydiosis in the koala were chosen. Lymphosarcoma was included because of the putative retroviral involvement. Another infectious disease of Australian wildlife, mucormycosis of the platypus, was also included in the study. One hundred and ten koalas were necropsied throughout the study to determine the main cause of death, other pathological conditions present and to provide a source of case material. Fifty-si

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5

Akula, Srinivas. "Analysis of the isotype specificity of three platypus immunoglobulin Fc receptors." Thesis, Uppsala universitet, Institutionen för cell- och molekylärbiologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-188288.

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The host’s defense against diseases called immunity acts either via innate or adaptive defense mechanisms. Immunoglobulins (Ig’s) are important players in adaptive immunity. They have evolved both structurally and functionally during vertebrate evolution. The Fc region of Igs can interact with specific receptors on the surface of various immune cells; crosslinking of these Fc receptors can trigger a wide array of immune reactions. To trigger such reactions, higher mammals have five different classes of Igs (IgM, IgG, IgA, IgE and IgD) while amphibians, reptiles and birds have four (IgM, IgD, I

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6

Inácio, Maria de Lurdes Nunes Silva. "Fungi associated with Platypus cylindrus (Coleoptera: Platypodidae) and their relation to cork oak decline." Doctoral thesis, ISA/UTL, 2012. http://hdl.handle.net/10400.5/5194.

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Doutoramento em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia<br>The ambrosia beetle Platypus cylindrus establishes symbiotic relationships with fungi. P. cylindrus may act as a vector for the dispersal of phytopathogenic fungi in the Mediterranean cork oak stands. The aim of this study was to identify the fungi associated with P. cylindrus in Portugal and to understand the role and potential impacts on cork oak stands of both insect and fungi. A complex of fungi was found in association with the insect, namely species of cosmopolitan genera whose exact role in

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7

Pham, Duy Long. "Ecological studies on dispersal flight and host selection of the ambrosia beetle Platypus quercivorus (Murayama)." Doctoral thesis, Kyoto University, 2020. http://hdl.handle.net/2433/259055.

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京都大学<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第22787号<br>農博第2430号<br>新制||農||1081(附属図書館)<br>学位論文||R2||N5307(農学部図書室)<br>京都大学大学院農学研究科森林科学専攻<br>(主査)教授井鷺裕司, 教授森直樹, 准教授大澤直哉<br>学位規則第4条第1項該当<br>Doctor of Agricultural Science<br>Kyoto University<br>DFAM

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8

Henriques, Joana Margarida Cordeiro. "Fungos associados a Platypus cylindrus Fab. (Coleoptera: platypodidae) e sua relação com o declínio do sobreiro em Portugal." Master's thesis, Universidade de Évora, 2007. http://hdl.handle.net/10174/16413.

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O inseto Platypus cylindrus Fab. estabelece simbioses com fungos que inocula em galerias que constrói em sobreiro. A partir do inseto e das galerias isolaram-se fungos dos géneros Acremonium, Aspergillus, Beauveria, Botrjytis, Chaetomium, Fusarium, Geotrichum, Gliocadíum, Nodulisporium, Paecilomyces, Penicillium, Raƒƒaelea, Scytalidium, Trichoderma, ordem Mucorales e o actinomiceta Streptomyces, alguns identificados pela primeira vez nesta interação. O género Raƒƒaelea compreende fungos ambrósia, incluindo uma espécie patogénica para quercíneas. Deste género identificaram-se R. ambrosiae, R. m

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9

Sousa, Edmundo de. "Contribution à l'étude de la biologie de populations de Platypus cylindrus (coleoptera : platypodidae) dans des peuplements de chênes-lièges au portugal." Lyon 1, 1996. http://www.theses.fr/1996LYO10092.

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Les principaux traits de la bio-ecologie de platypus cylindrus f. (coleoptera: platypodidae) sont etudies sur le chene-liege, dans le but d'interpreter l'actuelle explosion de ses populations au portugal. Cet insecte xylomycetophage presente des strategies de survie variees qui associent une longue phase de developpement pre-imaginal dans les galeries, et des symbioses avec 17 champignons, en particulier avec un complexe de 6 especes ambrosia utilisees pour la nourriture des larves. Les emergences peuvent s'etalier sur deux annees et les profils de sortie varient selon les hotes. A l'echelle d

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10

Tarno, Hagus. "Studies on the Biology of the Ambrosia Beetle, Platypus quercivorus (Murayama) in the Gallery, related to Frass Production and Male Behavior." Kyoto University, 2011. http://hdl.handle.net/2433/142327.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第16129号<br>農博第1865号<br>新制||農||989(附属図書館)<br>学位論文||H23||N4599(農学部図書室)<br>28708<br>京都大学大学院農学研究科地域環境科学専攻<br>(主査)教授二井一禎, 教授北山兼弘, 教授藤崎憲治<br>学位規則第4条第1項該当

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11

Sidibeh, Cherno Omar. "Production and cleavage specificity determination of serine proteases mMCP-4, mMCP-5, rMCP-2 and two platypus serine proteases of the chymase locus." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-197088.

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Serine proteases are a family of enzymes with a wide array of functions across both eukaryotes and prokaryotes. Here we have attempted to produce the serine proteases rat mast cell protease 2 and mouse mast cell protease 5 in a culture of HEK 293 cells; and mouse mast cell protease 4, platypus granzyme B-like protease and platypus hypothetical protease in a baculovirus expression system. Following production we wanted to analyse these serine proteases using a phage display assay and a battery of chromogenic substrates.

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12

Johansson, Jeannette. "Antibodies for better or worse or Antibody variability in an egg-laying mammal and a novel strategy in the treatment of allergies." Doctoral thesis, Uppsala University, Department of Cell and Molecular Biology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-2533.

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<p>Antibodies are a central part of the immune defense system, and a large variability in their specificity is needed in order to be able to react against all possible foreign substances we may encounter during our lives. In this thesis, results are presented from investigations into how an egg-laying mammal, the Australian duck-billed platypus (<i>Ornithorhynchus anatinus</i>) creates antibody variability. Our results show that despite the lack of many V gene families the antibody repertoire in the platypus seems to be well developed. A long and highly variable complementarity-determining reg

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13

Long, Hannah Katherine. "Evolutionary usage and developmental roles of vertebrate non-methylated DNA." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:78b14c1d-1fa3-46f1-815f-a8ba55579c43.

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Vertebrate genomes exhibit global methylation of cytosine residues where they occur in a cytosine-guanine dinucleotide (CpG) context and this epigenetic mark is generally thought to be repressive to transcription. Punctuating this pervasive DNA methylation landscape are short, contiguous regions of non-methylated DNA which are found at two thirds of mammalian gene promoters. These non-methylated regions exhibit CpG content close to expected levels as they escape the depletion of CpGs observed across the methylated fraction of the genome. The unique nucleotide properties of these CpG island (CG

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14

Accetta, ?rica Mateus Toledo. "Ehrlichia canis e Anaplasma platys em c?es (Canis familiaris, Linnaeus, 1758) trombocitop?nicos da Regi?o dos Lagos do Rio de Janeiro." Universidade Federal Rural do Rio de Janeiro, 2008. https://tede.ufrrj.br/jspui/handle/tede/899.

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Made available in DSpace on 2016-04-28T20:18:30Z (GMT). No. of bitstreams: 1 2008 - Erica Mateus Toledo Accetta.pdf: 809163 bytes, checksum: 04d79d0b9854d1e99fd77cff6ae68a4f (MD5) Previous issue date: 2009-08-27<br>Canine ehrlichiosis is an important infectious disease whose prevalence has been increasead in most areas of Brazil. Clinical signals and the laboratorial findings are variable. The present work had as objective to determine the frequency of the infection for E. canis and Anaplasma platys in dogs with trombocytopenia at Regi?o dos Lagos - State of Rio de Janeiro. It has been eva

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15

Hipsher, Carissa. "Assessment of Chromophoric Dissolved Organic Matter and Thamnocephalus platyurus as Tools to Monitor Cyanobacterial Bloom Development and Toxicity." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1566210122121367.

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16

Silva, Gislaine Cristina Ferreira da. "Ocorrência de Ehrlichia canis e Anaplasma platys em cães domiciliados da cidade de Jataizinho, Paraná." Universidade Estadual de Londrina. Centro de Ciências Agrárias. Programa de Pós-Graduação em Ciência Animal, 2011. http://www.bibliotecadigital.uel.br/document/?code=vtls000184356.

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A erliquiose canina é uma doença infecciosa, causada por bactérias gram-negativas, pertencentes à Ordem Rickettsiales, Família Anaplasmataceae, Gêneros Ehrlichia e Anaplasma. Ehrlichia canis e Anaplasma platys são organismos intracelulares obrigatórios, organizados em agrupamentos denominados mórulas, localizados comumente em leucócitos e plaquetas, respectivamente, existindo a possibilidade de infecções concomitantes. A transmissão da enfermidade ocorre pela picada do carrapato Rhipicephalus sanguineus.. A erliquiose é uma zoonose e nos últimos anos vem apresentando um aumento significativo n

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17

Lai, Tzung-Huei. "Two-Component Regulatory Systems of Anaplasma phagocytophilum and Outer Membrane Protein P44 Expression Locus of Anaplasma platys." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1276709646.

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18

GUIMAR?ES, Andresa. "Diagn?stico sorol?gico e molecular dos agentes Anaplasmataceae em felinos dom?sticos do Rio de Janeiro." Universidade Federal Rural do Rio de Janeiro, 2013. https://tede.ufrrj.br/jspui/handle/jspui/2498.

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Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-10-19T18:19:28Z No. of bitstreams: 1 2013 - Andresa Guimar?es.pdf: 1221110 bytes, checksum: 80ca8363650edbb042caea761cb85083 (MD5)<br>Made available in DSpace on 2018-10-19T18:19:28Z (GMT). No. of bitstreams: 1 2013 - Andresa Guimar?es.pdf: 1221110 bytes, checksum: 80ca8363650edbb042caea761cb85083 (MD5) Previous issue date: 2013-08-21<br>CAPES<br>CNPq<br>Studies of domestic cats are little discussed in Brazil, especially regarding hemoparasita research where cats can be carriers of the agent and contribute to infection of man. Anaplasm

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19

Costa, Hérika Xavier da. "Anaplasma platys e Ehrlichia canis em cães: avaliação de alterações oculares, desenvolvimento e validação de técnica de diagnóstico molecular." Universidade Federal de Goiás, 2015. http://repositorio.bc.ufg.br/tede/handle/tede/5850.

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Submitted by Cássia Santos (cassia.bcufg@gmail.com) on 2016-08-05T10:36:05Z No. of bitstreams: 2 Tese - Herika Xavier da Costa - 2015.pdf: 2103590 bytes, checksum: f8dd254901af7084719caef9647c0af2 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-08-05T15:01:18Z (GMT) No. of bitstreams: 2 Tese - Herika Xavier da Costa - 2015.pdf: 2103590 bytes, checksum: f8dd254901af7084719caef9647c0af2 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made available in D

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20

Tateishi, Takechi Viviana Mercedes. "Identificación hematológica y molecular de Anaplasma platys en caninos domésticos con signos clínicos compatibles con anaplasmosis en Lima Metropolitana." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2013. https://hdl.handle.net/20.500.12672/12573.

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La Trombocitopenia Cíclica Infecciosa Canina (TCIC) es una enfermedad rickettsial causada por el agente Anaplasma platys la cual es una bacteria intracelular obligatoria que pertenece a la familia Anaplasmataceae. Es una enfermedad que se transmite mediante la mordedura de la garrapata parda del perro o Rhipicephalus sanguineus. En el presente estudio, a través de la evaluación del frótis sanguíneo, se detectó la presencia de corpúsculos de inclusión compatibles con Anaplasma platys en plaquetas de caninos domésticos quienes presentaron signos clínicos compatibles con la enfermedad; además, se

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21

Sousa, Val?ria R?gia Franco. "Avalia??o cl?nica, morfol?gica, hematol?gica, bioqu?mica e biomolecular de c?es naturalmente infectados por Ehrlichia canis e Anaplasma platys." Universidade Federal Rural do Rio de Janeiro, 2006. https://tede.ufrrj.br/jspui/handle/tede/851.

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Made available in DSpace on 2016-04-28T20:16:32Z (GMT). No. of bitstreams: 1 2006-Valeria Regia Franco Sousa.pdf: 1545960 bytes, checksum: 07990d273ccfe1ac6c38929e5d3d100c (MD5) Previous issue date: 2006-02-20<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>This work had for objective to investigate the infection for Ehrlichia canis and Anaplasma platys in the dogs taken care of in the Veterinarian Hospital of the Universidade Federal de Mato Grosso, through the examination of blood smears and of the PCR, analyzing the clinical and laboratories findings. During the period o

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Silva, Wanessa Aparecida Carlos da. "Ocorrência da infecção por Ehrlichia spp e Anaplasma platys em canídeos e felídeos selvagens mantidos em cativeiro no Distrito Federal e Goiás." reponame:Repositório Institucional da UnB, 2015. http://dx.doi.org/10.26512/2015.12.D.20765.

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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Agronomia e Medicina Veterinária, Programa de Pós-Graduação em Saúde Animal, 2015.<br>Submitted by Fernanda Percia França (fernandafranca@bce.unb.br) on 2016-06-06T18:32:25Z No. of bitstreams: 1 2015_WanessaAparecidaCarlosdaSilva.pdf: 860497 bytes, checksum: 492ce556d09dbd0dc54b79a75073c7aa (MD5)<br>Approved for entry into archive by Raquel Viana(raquelviana@bce.unb.br) on 2016-06-22T15:57:39Z (GMT) No. of bitstreams: 1 2015_WanessaAparecidaCarlosdaSilva.pdf: 860497 bytes, checksum: 492ce556d09dbd0dc54b79a75073c7aa (MD5)<br>Made

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COSTA, Hérika Xavier da. "Interação de hemoparasitos e hemoparasitoses em casos clínicos de trombocitopenia em cães no município de Goiânia." Universidade Federal de Goiás, 2011. http://repositorio.bc.ufg.br/tede/handle/tde/852.

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Made available in DSpace on 2014-07-29T15:07:33Z (GMT). No. of bitstreams: 1 Dissertacao Herika Xavier da Costa.pdf: 698865 bytes, checksum: 5690033d276bcffe9deb9d5e0535394d (MD5) Previous issue date: 2011-02-25<br>The most important hemoparasites in dogs clinic are often associated with the manifestation of thrombocytopenia, being characterized by a lowering in platelet numbers. The aim of the current study was to verify the involvement of hemoparasites in finding thrombocytopenia in dogs from the city of Goiânia treated at the Veterinary Hospital of Federal University of Goiás (HV/EV/UFG).

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Lisb?a, Raquel Silva. "Diagn?stico dos g?neros Ehrlichia e Babesia em c?es dom?sticos e caracteriza??o de Anaplasma platys na Regi?o Metropolitana do Rio de Janeiro." Universidade Federal Rural do Rio de Janeiro, 2010. https://tede.ufrrj.br/jspui/handle/jspui/1151.

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Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2016-08-03T15:45:32Z No. of bitstreams: 1 2010 - Raquel Silva Lisboa.pdf: 4230911 bytes, checksum: e7087ccd29d417f592ca09ec5f49c657 (MD5)<br>Made available in DSpace on 2016-08-03T15:45:32Z (GMT). No. of bitstreams: 1 2010 - Raquel Silva Lisboa.pdf: 4230911 bytes, checksum: e7087ccd29d417f592ca09ec5f49c657 (MD5) Previous issue date: 2010-04-14<br>Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico, CNPq.<br>Dogs can be infected with various hemoparasites, and the occurrence of co-infections between Ehrlichia canis, Babesia canis,

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Silva, Claudia Bezerra da. "Detec??o de Anaplasma platys em c?es e em carrapatos: padroniza??ode qPCR e an?lise epidemiol?gica no Estado do Rio de Janeiro, Brasil e na regi?o ocidental de Cuba." Universidade Federal Rural do Rio de Janeiro, 2016. https://tede.ufrrj.br/jspui/handle/jspui/2107.

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Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-10-19T13:49:16Z No. of bitstreams: 1 2016 - Claudia Bezerra da Silva.pdf: 8032175 bytes, checksum: ef71dd2a0e7801e9000e116c822a3a00 (MD5)<br>Made available in DSpace on 2017-10-19T13:49:16Z (GMT). No. of bitstreams: 1 2016 - Claudia Bezerra da Silva.pdf: 8032175 bytes, checksum: ef71dd2a0e7801e9000e116c822a3a00 (MD5) Previous issue date: 2016-03-11<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES<br>and investigate the circulation of this agent in dogs in the Itaguai microregion, Rio de Janeiro, Brazil, and

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Tomaszkiewicz, Marta. "Molecular characterization of the Y chromosome-linked sex-determining region of the platyfish Xiphophorus maculatus." Thesis, Lyon, École normale supérieure, 2012. http://www.theses.fr/2012ENSL0791.

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De par leur diversité de mécanismes de déterminisme du sexe et de chromosomes sexuels, les poissons téléostéens représentent d’excellents modèles pour mieux comprendre les bases moléculaires et évolutives du contrôle du développement sexuel chez les vertébrés. Grâce à l’analyse de chromosomes artificiels bactériens couvrant les chromosomes sexuels du platy Xiphophorus maculatus, trois copies d’un nouveau gène nommé teximY ont été découvertes dans la région de déterminisme du sexe du chromosome Y mais pas du chromosome X. Un gène texim1 très apparenté à teximY ainsi que trois gènes plus diverge

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Stewart, NJ. "The epidemiology of ulcerative mycosis of the platypus (Ornithorhynchus anatinus)." Thesis, 2001. https://eprints.utas.edu.au/21701/1/whole_StewartNiallJohn2001_thesis.pdf.

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Platypuses ( Ornithorhynchus anatinus) in the north of the island state of Tasmania suffer from a serious disease called ulcerative mycosis, which is responsible for high morbidity and, presumably, mortality rates in areas where the disease occurs. The disease is caused by the fungus Mucor amphibiorum, which is also found in Queensland and New South. However, it does not cause disease in platypuses in those states. This thesis reports on the results of an integrated study of the epidemiology of the disease aimed at determining why only northern Tasmanian platypuses are affected. Pathogenicity

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Bethge, P. "Energetics and foraging behaviour of the Platypus Ornithorhynchus anatinus." Thesis, 2002. https://eprints.utas.edu.au/2326/3/Bethge_PhD.pdf.

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In this work, behavioural field studies and metabolic studies in the laboratory were conducted to elucidate the extent of adaptation of the platypus Ornithorhynchus anatinus to its highly specialised semiaquatic lifestyle. Energy requirements of platypuses foraging, resting and walking were measured in a swim tank and on a conventional treadmill using flow-through respirometry. Foraging behaviour and activity pattern of platypuses in the wild were investigated at a sub-alpine Tasmanian lake where individuals were equipped with combined data-logger-transmitter packages measuring foraging activi

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Bethge, P. "Energetics and foraging behaviour of the Platypus Ornithorhynchus anatinus." 2002. http://eprints.utas.edu.au/2326.

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In this work, behavioural field studies and metabolic studies in the laboratory were conducted to elucidate the extent of adaptation of the platypus Ornithorhynchus anatinus to its highly specialised semiaquatic lifestyle. Energy requirements of platypuses foraging, resting and walking were measured in a swim tank and on a conventional treadmill using flow-through respirometry. Foraging behaviour and activity pattern of platypuses in the wild were investigated at a sub-alpine Tasmanian lake where individuals were equipped with combined data-logger-transmitter packages measuring foraging activi

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Nourse, Amanda. "Platypus insulin : structural analysis, chemical synthesis and physico-chemical properties." Phd thesis, 1996. http://hdl.handle.net/1885/145721.

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Candy, Steven Gregory. "Biology of the mountain pinhole borer, Platypus subgranosus Schedl, in Tasmania." Thesis, 1990. https://eprints.utas.edu.au/18864/1/whole_CandyStevenGregory1991_thesis.pdf.

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Information on the life cycle and associations of the mountain pinhole borer, Platypus subgranosus Schedl (Coleoptera : Curculionidae : Platypodinae) is reviewed. Existing unpublished data combined with data collected in this study are used to provide quantitative descriptions of aspects of P.subgranosus biology. The within-tree spatial pattern of attack was found to be highly aggregated both at high and low density of attack. Aggregation was very high around host tissue infected with the pathogenic fungus Chalara australis Walker and Kile. A minimum spacing between pinholes of approxim

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McLachlan-Troup, Tanya Anne. "Ecology and functional importance of the platypus (Ornithorhynchus anatinus) in Australian freshwater habitats." Thesis, 2007. http://hdl.handle.net/2123/2536.

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Casey, Aaron Edward. "Investigating the organisation of the platypus sex chromosome chain during meiotic prophase I." Thesis, 2015. http://hdl.handle.net/2440/96834.

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Meiosis is a specialised form of cell division that occurs specifically in the gonads of sexually reproducing species. It comprises a round of DNA replication followed by two successive rounds of cell division to produce haploid gametes. Each stage is divided into four substages of prophase, metaphase, anaphase and telophase. Prophase I is the longest and most complex stage of meiosis during which homologous chromosomes pair and recombine. The evolution of heteromorphic sex chromosomes has led to a number of changes in meiotic organisation. This includes the non-pairing of sex specific parts o

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Kolomyjec, Stephen H. "The history and relationships of northern platypus (Ornithorhynchus anatinus) populations: a molecular approach." Thesis, 2010. https://researchonline.jcu.edu.au/18115/5/01front.pdf.

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The aim of this study was to understand the distribution and genetic structure of platypus populations in Australia, and in particular to investigate the interactions of distribution and genetic structure. The research considered the entire distributional range of the platypus, but with a special focus on the scientifically neglected platypus populations of northern Queensland. Platypuses in north Queensland are smaller than their southern counterparts and have a more reddish colouration. There appears also to be a break in the distribution of the platypus between about Mackay and Townsville,

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Woon, Peter Miles Nicholas. "Habitat preferences of platypus (Ornithorhynchus antinus Shaw 1799) in the Hastings River catchment, N.S.W." Thesis, 1995. http://hdl.handle.net/2123/1143.

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Latimer, Ashley Emilie. "Redescription of teeth and epithelial plates from the platypus (Ornithorhynchus anatinus) : morphological and evolutionary implications." Thesis, 2014. http://hdl.handle.net/2152/25675.

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The evolutionary history of mammals, when including extinct taxa, is mainly reconstructed using tooth morphology and employs terminology based on non-monotreme mammals. Although adult monotremes are edentulous, juvenile platypuses have teeth that can be compared with extinct monotremes, but terminology can be a barrier to efficient comparison to non-monotreme mammals. Deciduous teeth and thickened epithelial plates of the extant platypus, Ornithorhynchus anatinus, are sparsely figured in the literature. New imagery of those teeth and plates from high-resolution x-ray computed tomography and sc

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de, Plater G. M. "Fractionation, primary structural characterisation and biological activities of polypeptides from the venom of the platypus (Ornithorhynchus anatinus)." Phd thesis, 1998. http://hdl.handle.net/1885/144642.

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Bickerstaff, James R. "Morphological and molecular characterisation of Australian pinhole borers (Coleoptera: Curculionidae, Platypodinae)." Thesis, 2017. http://hdl.handle.net/1959.7/uws:44166.

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Pinhole borers (Coleoptera: Curculionidae, Platypodinae) are ecologically important and evolutionary unique taxa of economic significance. They are the oldest known insect lineage that cultivates fungi, commonly referred to as ambrosia fungi, within galleries excavated into the heartwood of trees. Most species of pinhole borers inhabit dead or dying trees, however, several species attack living trees, which can have detrimental effects on these hosts. For example, wilt disease is a common disease of trees caused by fungal pathogens transmitted by some pinhole borer species. These beetle specie

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Toledo-Flores, Deborah Fernanda. "Evolution of mammalian sex chromosomes and sex determination genes: insights from monotremes." Thesis, 2015. http://hdl.handle.net/2440/97382.

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Genetic sex determination systems are generally based on the presence of differentiated sex chromosomes. Birds have a ZZ/ZW sex chromosome system in which males are ZZ and females ZW, whereas mammals have an XX/XY system with males being XY and females XX. Monotremes have an extraordinary sex chromosome system that consists of multiple sex chromosomes: 5X5Y in platypus and 5X4Y in echidna. Intriguingly, the monotreme sex chromosomes show extensive homology to the bird ZW and not to the therian XY. However, sex determination in monotremes is still a mystery; the Y-specific Sry gene that trigger

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Patel, Vidushi S. "The evolution of haemoglobin gene loci in amniotes." Phd thesis, 2011. http://hdl.handle.net/1885/148265.

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The genes in alpha ({u03B1})- and beta ({u03B2})- globin clusters constitute a functional haemoglobin molecule, crucial for oxygen transportation. In most fish and amphibians, {u03B1}- and {u03B2}-globin genes are located together, whereas in amniotes (birds and mammals), there are two distinct clusters. Several complex models have been proposed to explain the evolution of these gene clusters. However, there was a lack of data for key positions in amniote phylogeny to discern which one was most parsimonious. Therefore, the main aims of this project were to characterise {u03B1}- and {u03B2}-glo

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Huang, Chia Chia, and 黃嘉嘉. "Detection of Ehrlichia canis, Ehrlichia platys and Dirofilaria immitis Infections in Dogs by Nested Polymerase Chain Reaction." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/91588971296029654197.

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碩士<br>國立中興大學<br>獸醫學系<br>92<br>Canine ehrlichiosis was primarily caused by Ehrlichia canis and Ehrlichia platys. E. canis resides and replicates within the mononuclear cells, the clinic signs were included: weight loss, anemia, lymphadenomegaly, and anorexia. E. platys invades platelets, it would cause fever, anorexia and thrombocytopenia. The dot-ELISA kit was used for clinical test, it was primarily detected the E. canis antibody in the blood；when the titer of antibody is low, the data will show negative result. The positive antibody of E. canis may be caused by the agent with continous stimu

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Yeh, Tung-Yuan, and 葉東原. "Molecular Survey of Anaplasma platys Infections in Hard TicksEctoparasitized on Canine Hosts of Taipei City and KaohsiungCity in Taiwan." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/89021996998842261210.

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碩士<br>國防醫學院<br>病理及寄生蟲學研究所<br>101<br>The hard tick of Rhipicephalus sanguineus belongs to Ixodes spp. which is a three-host tick and widely distributed around the world, and parasitizes dominantly on dogs. It can serve as a vector for various pathogens, such as Babasia canis, Ehrlichia canis, and Anaplasma platys. These pathogens may cause canine babesiosis, canine monocytic ehrlichiosis, and cyclic thrombocytopenia, respectively. In this study, we employed nested polymerase chain reaction (nested PCR) assay targeting the small-subunit ribosomal RNA (16S rRNA) gene to detect A. platys infection

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Βενετσανέας, Νικόλαος. "Εκτίμηση της οξείας τοξικότητας των αποβλήτων μονάδων παραγωγής χάρτου με την χρήση ως βιοδεικτών της πέστροφας Oncorhynchus mykiss και των μακροασπόνδυλων Daphnia pulex και Thamnocephalus platyurus". 2005. http://nemertes.lis.upatras.gr/jspui/handle/10889/402.

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Στην Ελλάδα γενικά, αλλά και στο Νομό Αχαΐας ειδικότερα, υπάρχουν αρκετές μονάδες παραγωγής χάρτου. Αρκετές από αυτές δεν βρίσκονται εντός των ορίων Βιομηχανικών Περιοχών (ΒΙ.ΠΕ.), με συνέπεια τα ακατέργαστα απόβλητά τους να συμβάλλουν σημαντικά στη ρύπανση του περιβάλλοντος. Το μεγαλύτερο περιβαλλοντικό πρόβλημα που προκαλείται από τις συγκεκριμένες μονάδες είναι η εναπόθεση μεγάλων ποσοτήτων υγρών ακατέργαστων αποβλήτων κυρίως στα υδάτινα οικοσυστήματα. Τα απόβλητα αυτά περιέχουν μεγάλο οργανικό φορτίο, οργανοαλογονωμένες ενώσεις, υψηλά επίπεδα αιωρούμενων στερεών , φαινολών και λιγνινών, με

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Yuasa, Yumi, and 湯淺裕美. "Identification of Anaplasma infection in dogs and Rhipicephalus sanguineus in Nantou County, Taiwan and development of serological diagnosis for Anaplasma platys infection." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/vf3xyg.

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博士<br>國立中興大學<br>獸醫學系暨研究所<br>106<br>The family Anaplasmataceae includes gram-negative obligate intracellular tick-borne organisms that infect wide range of mammals and cause various diseases. Canine anaplasmosis tends to be regarded as an infection caused by Anaplasma platys rather than a zoonotic pathogen, Anaplasma phagocytophilum in subtropical areas based on the assumption that the common dog tick species is Rhipicephalus sanguineus, which transmits Ehrlichia canis and presumably transmits A. platys. The transmission mode and infectious process of A. platys infection have not been clearly d

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Κονταλή, Ματίνα. "Εκτίμηση της τοξικότητας των τελικών εκροών από το σταθμό βιολογικής επεξεργασίας των αστικών αποβλήτων της Πάτρας με την χρήση βιοδεικτών (biotest)". Thesis, 2011. http://hdl.handle.net/10889/5163.

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Στην παρούσα μελέτη πραγματοποιήθηκε εκτίμηση της τοξικότητας των τελικών εκροών πριν και μετά το στάδιο της απολύμανσης (με τη χρήση της μεθόδους της χλωρίωσης) από το σταθμό βιολογικής επεξεργασίας των αστικών αποβλήτων της Πάτρας με την χρήση βιοδεικτών (biotest). Η μελέτη των τοξικών επιπτώσεων αυτών των εκροών και από τα δύο στάδια πραγματοποιήθηκε σε οργανισμούς-Βιοδείκτες τόσο των γλυκών όσο και αλμυρών υδάτων, όπως οι οργανισμοί Thamnocephalus platyurus και Artemia franciscana (με τη μορφή βιοτέστ Thamnotoxkit F και Artoxkit MTM αντίστοιχα), όσο και σε φυτικά είδη, όπως τα Sorgh

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