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Dissertations / Theses on the topic 'Nuclear phylogeny'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Wiswedel, Stefan. "Isolepis (Cyperaceae) revisited : a phylogeny based on plastid and nuclear ribosomal DNA data." Thesis, University of Cape Town, 2006. http://hdl.handle.net/11427/23927.

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2

Rong, Ying. "Phylogeny of the genus Gossypium and genome origin of its polyploid species inferred from variation in nuclear repetitive DNA sequences." Texas A&M University, 2004. http://hdl.handle.net/1969.1/3161.

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Knowledge of phylogenetic relationships among taxa is essential for comparative and evolutionary genomic research. Here, we report reconstruction of the phylogenetic tree of the genus Gossypium containing cultivated cottons of importance in agriculture by using variation of nuclear repetitive DNA sequences. Genomic DNA was isolated from 87 available accessions of 35 species representing all eight basic genome groups of the genus Gossypium and analyzed to infer phylogeny of the genus and genome origin of its polyploid species. Twenty-two interspersed repeated sequence clones derived from G. hir

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3

Bateman, Joanna Rosa. "Species Delimitation Predictions Using Mitochondrial and Nuclear DNA Sequences from the Heteromys pictus-spectabilis Species Complex." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/7457.

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Heteromys pictus-spectabilis is a species complex within the subfamily Heteromyinae (Family: Heteromyidae) that is distributed along the western and southern Mexican coast and surrounding environments. Currently, the species complex is accepted as being 2 separate species (H. pictus and H. spectabilis), but this also renders H. pictus paraphyletic. Therefore, the species complex requires re-evaluation in order to resolve the paraphyly. Mitochondrial DNA sequences from a previously existing ~720 specimen database compiled by Victoria Vance were used in conjunction with new nuclear DNA sequences

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4

Lin, Qianshi. "Using a low-copy nuclear gene (phosphoglycerate kinase; PGK) to explore the phylogeny of the aquatic plant family Hydatellaceae (Nymphaeales)." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/50564.

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Hydatellaceae are a small aquatic family of 12 species related to water lilies, part of the ANITA grade of angiosperms. Our current understanding of phylogenetic relationships in the family comes from several plastid genes and nuclear ITS data. These data sets are generally highly congruent, and lend support to the monophyly of multiple species. However, the published nuclear ITS tree was unrooted (outgroups were too distant to align), and there were several minor phylogenetic conflicts between plastid and ITS gene trees for three closely related species, Trithuria bibracteata, T. occidentalis

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5

Gonzalez, Malinda Wallentine. "Phylogenetic relationship of forest spiny pocket mice (Genus Heteromys) inferred from mitochondrial and nuclear markers with implications for species boundaries." BYU ScholarsArchive, 2005. https://scholarsarchive.byu.edu/etd/263.

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I constructed a best estimate phylogeny based on congruence of multiple data sources. In recent years molecular data has been used both to construct phylogenies of taxonomic groups and to aid in the delimitation of new species. I generated and analyzed sequence data for forest spiny pocket mice (Genus Heteromys) for the mitochondrial gene cyt b (1143 bp) and two nuclear gene segments MYH2 (252 bp) and EN2 (189 bp). I used maximum parsimony and Bayesian analyses to infer relationships among species and to provide a framework for using a species delimitation method to investigate the possibility

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6

Rossi, Natália. "Revisão das espécies de Macrobrachium, Bate, 1868, pertencentes ao complexo M. olfersii (Crustacea, Palaemonidae): análises morfológicas e moleculares." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/59/59139/tde-22062012-105613/.

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Pesquisas envolvendo a sistemática e a taxonomia de camarões de água doce do gênero Macrobrachium Bate, 1868 ainda são pouco elucidativas para alguns de seus membros. Este é o caso de Macrobrachium olfersii (Wiegmann, 1836) que ocorre desde o sudeste dos Estados Unidos até o sul do Brasil e é comumente confundido com espécies que ocorrem preferencialmente na América Central (M. faustinum (de Saussure, 1857), M. digueti (Bouvier, 1895), M. crenulatum Holthuis, 1950, M. hancocki Holthuis, 1950 e M. acanthochirus Villalobos, 1967). Em 1969 estas espécies foram designadas por Villalobos como compl

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7

Liu, Jiarong. "Phylogeny and biogeography or watermelon [Citrullus lanatus (Thunb.) Matsum. & Nakai] based on chloropast, nuclear sequence and AFLP molecular marker data." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Fall/Thesis/LIU_JIARONG_35.pdf.

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8

Vasconcelos, RÃgis Fernandes. "Variabilidade da RegiÃo ITS-1 do Cluster RibossÃmico Nuclear em PopulaÃÃes de Ostras de TrÃs EstuÃrios da Costa Cearense." Universidade Federal do CearÃ, 2009. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=2717.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>ClassificaÃÃes taxonÃmicas de ostras sÃo problemÃticas, pois estes organismos possuem caracterÃsticas morfolÃgicas pouco informativas. A variabilidade da regiÃo ITS do cluster ibossÃmico tem sido bastante utilizada em estudos filogenÃticos e taxonÃmicos, visto que esta regiÃo apresenta uma variabilidade relativamente elevada e fÃcil amplificaÃÃo por termociclagem. A ostra Crassostrea brasiliana foi, por dÃcadas, confundida com C. rhizophorae, entretanto, estudos recentes indicam que sÃo duas espÃcies biologicamente distintas. Est

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9

Nguyen, Phi-Nga. "Molecular phylogeny of Southeast Asian Dipterocarps belonging to tribe Dipterocarpeae (family Dipterocarpaceae) based on non-coding sequence data of chloroplast and nuclear DNA /." Göttingen : Optimus Mostafa, 2009. http://d-nb.info/995047812/04.

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10

Amiri, Neda. "Molecular Phylogeny of Poa L. sensu lato (Poaceae) with a Focus on West Asian Species." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35018.

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Poa L., is known as a highly diverse cosmopolitan genus with taxonomic difficulties that includes unknown species and species with uncertain affinities mainly in West Asia and North Africa. Poa also exhibits a close relationship with two West Asian genera, Eremopoa Roshev. and Oreopoa H. Scholz & Parolly. This study was conducted to: 1) fill the gap of information on the affinities between Poa species with an emphasis on West Asian Poa; 2) revise and evaluate the accuracy of traditional infrageneric classification of West Asian Poa; and 3) clarify the relationship between Poa and two allied ge

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11

Bass, Anna Lee. "Evolutionary genetics of the family Placobranchidae (Mollusca: Gastropoda: Opisthobranchia: Sacoglossa)." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001725.

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12

Wright, Bethany Ann. "Systematic studies in the genus Phlox (polemoniaceae): cytotypic variation in Phlox nana nutt. and utility of a low copy nuclear gene region (IDHB) for phylogeny development." Thesis, Kansas State University, 2014. http://hdl.handle.net/2097/18242.

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Master of Science<br>Department of Biology<br>Carolyn J. Ferguson<br>The genus Phlox L. presents intriguing opportunities for systematics research, and P. nana is of particular interest. Phlox nana occurs chiefly in mountains of the Chihuahuan desert to northern New Mexico, and it exhibits much morphological variation across its range. Historically, this taxon has been recognized as a single species (sometimes with infraspecific taxa), or as several species. Perhaps most interesting, variation in ploidy level (cytotypic variation) has been evidenced for P. nana. This research employed flow cyt

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Oliveira, Mariana Cabral de. "Filogenia de Porphyra spp. (Rhodophyta): sequenciamento do gene nuclear para o RNA da subunidade pequena do ribossomo (rDNA 18S) e estudos morfológicos da fase Conchocelis." Universidade de São Paulo, 1993. http://www.teses.usp.br/teses/disponiveis/41/41132/tde-09082016-164600/.

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O gênero Porphyra (Rhodophyta) apresenta uma considerável importância econômica, sendo extensivamente cultivado e consumido como alimento. O gênero é representado por mais de 70 espécies e apresenta ampla distribuição geográfica, desde regiões tropicais até polares. Sua taxonomia, baseada em poucos caracteres da fase macroscópica do seu ciclo de vida, é ainda bastante problemática. Para tentar entender melhor a taxonomia e a história evolutiva de Porphyra foram utilizadas metodologias de biologia molecular e características da fase conchocelis do ciclo de vida. Verificou-se que caracteres da f

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14

Cavalcante, Neto Aderbal [UNESP]. "Origem do suíno casco-de-burro e sua relação genética com populações ibéricas e americanas." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/102799.

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Made available in DSpace on 2014-06-11T19:32:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-02-26Bitstream added on 2014-06-13T20:03:31Z : No. of bitstreams: 1 cavalcanteneto_a_dr_jabo.pdf: 4939501 bytes, checksum: 3f74c1d904d705f2ad4cef0bc2ccbc70 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Com os objetivos de elucidar a origem genética do suíno casco-de-burro e de contribuir para sua conservação, realizou-se uma caracterização genética em 110 animais, oriundos das regiões Nordest

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Carnelossi, Elias Alberto Gutierrez [UNESP]. "Diferenças moleculares entre citótipos de Mazama americana (Artiodactyla: Cervidae)." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/92627.

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Made available in DSpace on 2014-06-11T19:26:07Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-05-27Bitstream added on 2014-06-13T19:33:20Z : No. of bitstreams: 1 carnelossi_eag_me_jabo.pdf: 5963862 bytes, checksum: c9072ade5521cd6b029cd77e62872e7a (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>O veado-mateiro (Mazama americana) possui uma ampla distribuição geográfica na região neotropical. Estudos citogenéticos com a espécie revelam variações cromossômicas (citótipos) que apontam sua divisão em outras espécies. Neste trabalho, foram examinadas as relações

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Palasio, Raquel Gardini Sanches 1985. "Polimorfismo dos genes mitocondrial 16S rRNA e nuclear ITS-2 em populações de Biomphalaria tenagophilada bacia litorânea do estado de São Paulo e estudo da suscetibilidade dos caramujos ao Schistosoma mansoni." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314614.

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Orientadores: Eliana Maria Zanotti Magalhães, Roseli Tuan<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-23T20:56:19Z (GMT). No. of bitstreams: 1 Palasio_RaquelGardiniSanches_M.pdf: 32439761 bytes, checksum: e30767ddf6f947a1346867f1f0a27494 (MD5) Previous issue date: 2013<br>Resumo: O planorbídeo Biomphalaria tenagophila (Orbigny, 1835) (Gastropoda: Planorbidae) é a espécie hospedeira intermediaria do Schistosoma mansoni Sambon, 1907 predominante no estado de São Paulo. No estado de São Paulo a espécie está relacion

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MacAskill, Ursula Kate. "A structural investigation of squash aspartic peptidase inhibitor (SQAPI) using Nuclear Magnetic Resonance spectroscopy (NMR) : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Biochemistry at Massey University, Palmerston North, New Zealand." Massey University, 2007. http://hdl.handle.net/10179/985.

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Peptidases are enzymes that hydrolyse peptide bonds. This potentially dangerous activity is regulated by post translational modification and peptidase inhibitors. The best characterized of the peptidase inhibitors are the serpins whilst the aspartic peptidase inhibitors are the least characterized. Aspartic peptidase inhibitors are rare with only nine known sources. However, they are of great interest because they play an important part in several human diseases such as metastasis of breast cancer cells, Candida albicans infections and HIV. The aims of this research project were to investigate

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Cavalcante, Neto Aderbal. "Origem do suíno casco-de-burro e sua relação genética com populações ibéricas e americanas /." Jaboticabal : [s.n.], 2010. http://hdl.handle.net/11449/102799.

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Resumo: Com os objetivos de elucidar a origem genética do suíno casco-de-burro e de contribuir para sua conservação, realizou-se uma caracterização genética em 110 animais, oriundos das regiões Nordeste (NE), Centro-Oeste (CO) e Sudeste (SE), usando-se duas classes de marcador molecular e análises citogenéticas. Foram encontrados 13 haplótipos mitocondriais entre os cascos-de-burro, sendo que apenas um foi comum às três subpopulações (NE, CO e SE). O valor médio da diversidade haplotípica e o da nucleotídica na população total foram 0,61 e 0,05 respectivamente. Por meio do DNA mitocondrial, as

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Carnelossi, Elias Alberto Gutierrez. "Diferenças moleculares entre citótipos de Mazama americana (Artiodactyla: Cervidae) /." Jaboticabal : [s.n.], 2008. http://hdl.handle.net/11449/92627.

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Resumo: O veado-mateiro (Mazama americana) possui uma ampla distribuição geográfica na região neotropical. Estudos citogenéticos com a espécie revelam variações cromossômicas (citótipos) que apontam sua divisão em outras espécies. Neste trabalho, foram examinadas as relações filogenéticas desta espécie, analisando parte dos genes mitocondriais (citocromo-b e região controladora D-loop), dos genes nucleares (Beta e Kapa caseínas e do exon I do gene IRBP) e um fragmento do gene, presente no cromossomo Y, chamado SRY, para amostras de 19 indivíduos provenientes de diferentes regiões do Brasil. Os

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20

Alström, Per. "Species Limits and Systematics in Some Passerine Birds." Doctoral thesis, Uppsala University, Department of Systematic Zoology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-2032.

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<p>I use morphological, vocal, molecular, behavioural, ecological and distributional data to re-evaluate the systematics of three passerine bird groups, the <i>Mirafraassamica </i>complex (bush-larks), the genus <i>Seicercus</i> ("spectacled-warblers"; with emphasis on the the <i>S. burkii</i> complex) and the genus <i>Motacilla</i> (wagtails). Two new species are described: <i>Seicercus soror</i> and <i>Motacilla samveasnae</i>. I propose that the polytypic species <i>M. assamica</i> should be treated as four separate species: <i>M. assamica</i>, <i>M. affinis</i>, <i>M. microptera</i> and <i

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Stephenson, Troy James. "Characterisation of the TaNF-Y family of transcription factors in wheat." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/47525/1/Troy_Stephenson_Thesis.pdf.

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Light plays a unique role for plants as it is both a source of energy for growth and a signal for development. Light captured by the pigments in the light harvesting complexes is used to drive the synthesis of the chemical energy required for carbon assimilation. The light perceived by photoreceptors activates effectors, such as transcription factors (TFs), which modulate the expression of light-responsive genes. Recently, it has been speculated that increasing the photosynthetic rate could further improve the yield potential of three carbon (C3) crops such as wheat. However, little is current

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Zancanella, Vanessa. "Drug metabolizing enzymes and transporters in bos taurus and cryopreserved pig hepatocytes: constitutive expression and transcriptional modulation." Doctoral thesis, Università degli studi di Padova, 2012. http://hdl.handle.net/11577/3422181.

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The exposure to xenobiotics may alter the transcription of a broad array of genes expressed in multiple tissues and vital organs such as the liver, kidney, intestine, lungs, brain, placenta, and pancreas, in order to modulate their own metabolism and excretion (Tolson & Wang, 2010). The mammalian nuclear receptor superfamily of transcription factors is involved in the first step of detoxification mechanism, regulating the gene expression of phase I and II metabolizing enzymes and drug transporters (di Masi et al., 2009). Over the past ten years, remarkable advances have been made about the nuc

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23

Bianchetti, Laurent. "Intégration de l'évolution pour contribuer à l'étude de la relation séquence, structure, fonction des protéines." Thesis, Strasbourg, 2019. https://publication-theses.unistra.fr/restreint/theses_doctorat/2019/bianchetti_laurent_2019_ED414.pdf.

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Intégrer l’évolution peut aider à comprendre la relation séquence, structure, fonction des protéines. Dans un 1er projet, j’ai utilisé la phylogénèse moléculaire pour montrer que les gènes Testis expressed 19 » (Tex19) et « Secreted and transmembrane 1 » (Sectm1) coévoluent. Bien que Tex19 et Sectm1 interviennent dans des processus biologiques différents, régulation des transposons et immunité respectivement, la coévolution établit entre eux un lien fonctionnel très fort. Comme Tex19 ne s’exprime que dans le testicule de l’adulte sain et en cellule cancéreuse, ce résultat pourrait présenter un

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Pretti, Vania Quibao. "Relações filogenéticas no gênero Acestrorhynchus (Teleostei, Characiformes), com base na análise de genes nucleares e mitocondriais." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/41/41131/tde-16042008-140210/.

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O gênero Acestrorhynchus encontra-se amplamente distribuído na América do Sul, estando presente nas bacias do Paraná-Paraguai, Uruguai, no rio São Francisco, nos rios costeiros das Guianas, e nas bacias dos rios Amazonas e Orinoco, sendo as duas últimas, o local onde se encontra a maior diversidade desses peixes. Na ausência de estudos mais detalhados sobre as relações filogenéticas entre as espécies de Acestrorhynchus, as 14 espécies reconhecidas têm sido agrupadas com base no seu padrão de coloração. O primeiro trabalho focalizando as relações filogenéticas das espécies de Acestrorhynchus, f

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Choi, Bokyung. "Taxonomic status of Melaleuca argentea "Ashburton biotype" and identification and evaluation of exon capture loci for Myrtaceae." Phd thesis, Canberra, ACT : The Australian National University, 2017. http://hdl.handle.net/1885/142211.

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Melaleuca sensu lato is the second biggest genus (ca. 380 spp.) that is mainly distributed in Australia, but some species are found in Southeast Asia, Papua New Guinea and New Caledonia. Melaleuca occupy a range of habitats and are found in all biomes, which makes this hyper-diverse genus an excellent group to carry out evolutionary studies. The taxonomy of Melaleuca sensu lato (tribe Melaleuceae) has been controversial. The tribe originally included eight other genera: Beaufortia, Calothamnus, Conothamnus, Eremaea, Lamarchea, Petraeomyrtus, Phymatocarpus, and Regelia. However, with

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Silva, Uaska Bezerra e. "Evolu??o do reparo por excis?o de nucleot?deo." Universidade Federal do Rio Grande do Norte, 2008. http://repositorio.ufrn.br:8080/jspui/handle/123456789/16761.

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Made available in DSpace on 2014-12-17T15:18:09Z (GMT). No. of bitstreams: 1 UaskaBS.pdf: 2080120 bytes, checksum: b16b535c47ed35cd6d738822bec1281d (MD5) Previous issue date: 2008-03-31<br>Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico<br>The phylogeny is one of the main activities of the modern taxonomists and a way to reconstruct the history of the life through comparative analysis of these sequences stored in their genomes aimed find any justification for the origin or evolution of them. Among the sequences with a high level of conservation are the genes of repair becaus

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Sampaio, Bruna Matarucco. "Variação intraespecífica e biogeografia de isolados brasileiros de Leishmania infantum chagasi baseado em genes nucleares e mitocondriais." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/10/10134/tde-26092016-123454/.

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As espécies do gênero Leishmania parasitam mamíferos do Novo e Velho Mundo e possuem ciclos de vida com alternância entre vertebrados e invertebrados. A maioria das espécies se desenvolve em artrópodes hematófagos, que podem pertencer a diversas ordens e famílias. A Leishmaniose visceral é uma importante zoonose e possui canídeos silvestres e domésticos como importantes reservatórios conhecidos na diversidade genética de Leishmania infantum chagasi no Brasil ainda não é conhecida. Leishmaniose é uma doença severa com ampla distribuição geográfica com uma incidência de dois milhões de casos por

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Mendonça, Vagner José 1978. "Analise da relação filogenetica entre Triatoma sherlocki Papa, Jurberg, Carcavallo, Cerqueira & Barata, 2002 e T. brasiliensis Neiva, 1911 (Hemiptera, Reduviidae) baseada no sequenciamento de genes do DNA mitocondrial e nuclea." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314770.

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Orientador: João Aristeu da Rosa<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-08T20:03:24Z (GMT). No. of bitstreams: 1 Mendonca_VagnerJose_M.pdf: 9704244 bytes, checksum: c343d08640ae10d944866e45beb0b3ae (MD5) Previous issue date: 2007<br>Resumo: Triatomíneos silvestres coletados por Cerqueira em 1975 em Santo Inácio/BA foram estudados por Papa et al. (2002) que concluíram tratar-se de uma nova espécie, denominada T. sherlocki ao compará-la com outros Triatominae. No intuito de ampliar o conhecimento dessa nova es

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Ferreira, Rafael Fransak. "Filogenia do Complexo Drosophila Buzzatii (Grupo Repleta): Inferências de Análises Multilocus Mitocondriais e Nucleares." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/17/17135/tde-26092011-154314/.

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O complexo Drosophila buzzatii (grupo repleta) compreende 13 espécies, divididas em três clusters, de acordo com o bandeamento observado nos cromossomos politênicos: cluster D. stalkeri, incluindo D. richardsoni e D. stalkeri, restrito às ilhas do Caribe e Flórida; cluster D. martensis, incluindo D. martensis, D. uniseta, D. venezolana e D. starmeri, encontrado em áreas desérticas da Colômbia e Venezuela; e cluster D. buzzatii, incluindo D. buzzatii, D. koepferae, D. antonietae, D. serido, D. gouveai, D. borborema e D. seriema, habitando regiões sazonalmente secas ao longo da diagonal de veget

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Wiredu, Boakye Dominic. "Life in the nucleus : the genomic basis of energy exploitation by intranuclear Microsporidia." Thesis, University of Exeter, 2016. http://hdl.handle.net/10871/26108.

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The Microsporidia are obligate intracellular parasites that have jettisoned oxidation phosphorylative capabilities during their early evolutionary history and so rely on ATP import from their host and glycolysis for their energy needs. Some species form tight associations with the host’s mitochondria and this is thought to facilitate ATP sequestration by the developing intracellular microsporidian. The human parasite, Enterocytozoon bieneusi has however lost glycolytic capabilities and may rely entirely on ATP import from its host for energy. E. bieneusi belongs to the Enterocytozoonidae micro

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Hochschartner, Gerald. "Revealing the past : the potential of a novel small nucleolar RNA (snoRNA) marker system for studying plant evolution." Thesis, University of St Andrews, 2011. http://hdl.handle.net/10023/1695.

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Despite the existence of various molecular marker systems there are still limitations in distinguishing between closely related species based on molecular divergence, especially when hybridization events have occurred in the past. The characterisation of plant small nucleolar RNA (snoRNA) genes and their organisation into multigene clusters provides a potential nuclear marker system which could help in resolving the phylogenetic history of plants and might be applicable in DNA barcoding. Using closely and distantly related Senecio species, I investigated a combination of fragment length and se

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Mermet, Nathalie. "Expression des protéines nucléaires impliquées dans les mécanismes de réplication, recombinaison et réparation de l'ADN : étude d'anatomie comparée dans le système nerveux central des vertébrés." Lyon 1, 1999. http://www.theses.fr/1999LYO1T208.

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Robinson, Colette. "Molecular phylogenetics of Lachnaea (Thymelaeaceae) : evidence from plastid and nuclear sequence data." Thesis, 2008. http://hdl.handle.net/10210/248.

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Lachnaea L. (Thymelaeaceae), a genus established in 1753, is endemic to the Cape Floristic Region (CFR) of southern Africa. It demonstrates a high level of regional endemism, with 55% of the species endemic to one of the six centres in the CFR. The first detailed taxonomic account of the genus was published by Meisner in 1840 based on the collections of Drège. Three sections were recognised, namely Sphaeroclinium Meisn., Conoclinium Meisn., and Microclinium Meisn., based mainly on the inflorescence structure. The circumscription of Lachnaea has been extended to include all five species previou

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Van, Niekerk Anemari. "Phylogenetic relationships and speciation in the genus Passerina L.(Thymelaeaceae)inferred from chloroplast and nuclear sequence data." Thesis, 2008. http://hdl.handle.net/10210/249.

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The Eastern Cape is regarded as the centre of diversity for Passerina, except for two species occurring in the outliers of eastern Africa. Ten species are endemic to the Cape Floristic Region and four are regarded as near endemics. A complete species-level phylogeny for Passerina utilising sequences from three plastid and one nuclear gene is presented. The loci sequences were rbcL, trnL-F, rps16 and ITS. Parsimony and Bayesian analysis yield identical relationships and two informal groupings are described. Passerina is well imbedded within the tribe Gnideae and not sister to it as previously s

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"Phylogeny of the infraorder Caridea (Crustacea:Decapoda) based on nuclear genes." 2010. http://library.cuhk.edu.hk/record=b5894344.

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Li, Chi Pang.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2010.<br>Includes bibliographical references (leaves 127-141).<br>Abstracts in English and Chinese.<br>Abstract --- p.i<br>Abstract (Chinese) --- p.iii<br>Acknowledgements --- p.v<br>Contents --- p.vi<br>List of Tables --- p.ix<br>List of Figures --- p.x<br>Chapter Chapter 1 --- General Introduction --- p.1<br>Chapter Chapter 2 --- Literature Review --- p.3<br>Chapter 2.1 --- Caridean phylogeny --- p.3<br>Chapter 2.1.1 --- Informative morphological characters in Caridean shrimps --- p.3<br>Chapter 2.1.2 --- Brief his

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"Phylogeny of decapoda (arthropoda: crustacea) using nuclear protein-coding genes." Thesis, 2010. http://library.cuhk.edu.hk/record=b6075079.

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Finally, the gene tree of the true crabs, Brachyura, confirms that the basal "Podotremata" is paraphyletic, with the Raninoidea and Cyclodorippoidea more closely related to Eubrachyura than to the other podotremes. Within the monophyletic Eubrachyura, the analysis supports the reciprical monophyly of the two subsections, Heterotremata and Thoracotremata. All of the Old World freshwater crabs cluster together, representing an early diverged lineage in the Heterotremata.<br>From the inferred phylogeny, we have obtained new insights on the evolution of decapods. First, the spiny lobster from the

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Humpert, Andrea J. "Systematics of the genus Ramaria inferred from nuclear large subunit and mitochondrial small subunit ribosomal DNA sequences." Thesis, 1999. http://hdl.handle.net/1957/33357.

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Ramaria is a genus of epigeous fungi common to the coniferous forests of the Pacific Northwest of North America. The extensively branched basidiocarps and the positive chemical reaction of the context in ferric sulfate are distinguishing characteristics of the genus. The genus is estimated to contain between 200-300 species and is divided into four subgenera, i.) R. subgenus Ramaria, ii.) R. subgenus Laeticolora, iii.) R. subgenus Lentoramaria and iv.) R. subgenus Echinoramaria, according to macroscopic, microscopic and macrochemical characters. The systematics of Ramaria is problematic and co

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Wu, Junyuan. "Nuclear and mitochondrial DNA polymorphism and phylogeny in the California closed-cone pines." Thesis, 1998. http://hdl.handle.net/1957/33946.

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We studied genetic polymorphism and phylogeny using nuclear random amplified polymorphic DNA markers (RAPDs) and mitochondrial DNA (mtDNA) restriction fragment length polymorphisms (RFLPs) in the three California Closed-Cone Pines: Pinus attenuata Lemm., P. muricata D. Don, and P. radiata D. Don. A total of 343 to 384 trees derived from 13 populations were analyzed using 13 mitochondria' gene probes and two restriction enzymes, and more than 90 RAPD loci generated by 22 primers. Southern hybridization was used to test homology among comigrating RAPD markers. Segregation analysis and Southern h

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林儀惠. "Phylogeny of Euphrasia Section Malesianae (Orobanchaceae) Inferred from Chloroplast, Mitochondria and Nuclear Sequences." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/37027004057005946103.

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Li, Youyang. "Phylogeny of the lamprey genus Lethenteron Creaser and Hubbs 1922 and closely related genera using the mitochondrial cytochrome b gene and nuclear gene introns." 2014. http://hdl.handle.net/1993/23657.

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The phylogeny of lampreys is controversial, because they possess few taxon-distinctive morphological characters. This is especially true of the relationships among the genus Lethenteron and the closely related genera Eudontomyzon and Lampetra. Thus, the first objective of this thesis was to use DNA sequences of the mitochondrial cytochrome b gene and two nuclear gene introns to infer the phylogeny among these three genera. I found that: 1) Lethenteron plus Eudontomyzon morii without Lethenteron ninae, Lethenteron zanandreai, and Lethenteron sp. S (a distinct cryptic species in the Lethenteron

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Hamzeh, Mona. "Molecular phylogeny of the tree genus Populus (Salicaceae) based on chloroplast and nuclear DNA sequence data." Thesis, 2003. http://spectrum.library.concordia.ca/2173/1/MQ83848.pdf.

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Species of the genus Populus , collectively known as poplars, are widely distributed over the northern hemisphere, and well known for their ecological, economical, and evolutionary importance. The extensive inter-species hybridization and high morphological diversity in this group pose difficulties in identifying taxonomic units for comparative evolutionary studies and systematics. In order to understand the evolutionary relationships among poplars and to provide a framework for biosystematic classification, I reconstructed the phylogeny of the genus Populus based on nucleotide sequences of th

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Mohamed, Gamal Ibrahim Ahmed. "Molecular phylogeny of the family Leguminosae (Fabaceae) inferred from nucleotide sequences of the rbcL gene and ISSR nuclear fingerprints /." 2001. http://www.gbv.de/dms/bs/toc/333210492.pdf.

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CAISOVÁ, Lenka. "Molecular phylogeny and taxonomic revision of chaetophoralean algae (Chlorophyta)." Doctoral thesis, 2011. http://www.nusl.cz/ntk/nusl-79954.

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Since the human inclination to estimate and trace natural diversity, usable species definitions as well as taxonomical systems are required. As a consequence, the first proposed classification schemes assigned the filamentous and parenchymatous taxa to the green algal order Chaetophorales sensu Wille. The introduction of ultrastructural and molecular methods provided novel insight into algal evolution and generated taxonomic revisions based on phylogenetic inference. However, until now, the number of molecular phylogenetic studies focusing on the Chaetophorales s.s. is surprisingly low. To enh

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Wagman, David Wolfe. "Species identification of Klamath Basin suckers (Pisces : Catostomidae) and an assessment of hybridization using anonymous nuclear loci." Thesis, 2003. http://hdl.handle.net/1957/30574.

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Low copy number anonymous nuclear loci were used to search for species markers in four species of Klamath Basin suckers. We sequenced 28 randomly chosen loci representing 10,421 bp; 21 loci were similar to sequences in GenBank. Eight fixed sequence differences were found among Klamath species. Locus 120 contained rare but diagnostic markers for Deltistes luxatus and for Catostomus rimiculus. Locus 4 also contained three rare but unique sites in Catostomus rimiculus. No sequence differences were found between Chasmistes brevirostris and Catostomus snyderi. Loci 4 and 120 exhibited allele freque

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Golombek, Anja. "Inferring the phylogeny of problematic metazoan taxa using mitogenomic and phylogenomic data." Doctoral thesis, 2019. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-201905231583.

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The evolutionary origin and the phylogeny of higher metazoan taxa is still under debate although considerable progress has been made in the past 20 years. Metazoa represents a monophyletic group of highly diverse animals including Bilateria, Cnidaria, Porifera, Ctenophores, and Placozoa. Bilateria comprises the majority of metazoans and consists of three major clades: Deuterostomia, Spiralia (= Lophotrochozoa sensu lato), and Ecdysozoa, whereas the sister group taxa Spiralia and Ecdyzozoa form the monophyletic clade Protostomia. Molecular data have profoundly changed the view of the bilaterian

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Esfeld, Korinna [Verfasser]. "The use of low-copy nuclear genes in the radiation of the Macaronesian Crassulaceae Sempervivoideae : phylogeny and evolutionary processes / presented by Korinna Esfeld." 2009. http://d-nb.info/1001443497/34.

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Manzanilla, Vincent. "Une phylogénie du grade des Caesalpinieae inférée à partir de marqueurs nucléaires et chloroplastiques." Thèse, 2009. http://hdl.handle.net/1866/8119.

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Boguski, David Andrew. "The genetic diversity of brook lampreys genus Lampetra (Petromyzontidae) along the Pacific coast of North America." 2009. http://hdl.handle.net/1993/3212.

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The number of non-parasitic (brook) lamprey species in the genus Lampetra is underestimated since isolated populations are generally considered one species due to their relatively conserved body form. The phylogeographic and phylogenetic structure was estimated among and within Lampetra species along the Pacific coast of North America (presumed to represent Lampetra richardsoni; L. pacifica – which is currently regarded as a junior synonym of L. richardsoni; L. ayresii; and L. hubbsi) using up to three mitochondrial and three nuclear genetic markers. These data show that L. richardsoni as cu

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Liu, Shu-Chun, and 劉淑君. "Using intron 2 and exon 1 sequences of GFAP (glial fibrilary acidic protein) gene as novel nuclear markers to study the phylogeny of closely related primate and suborder Scombroidei species." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/59035533077407580269.

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碩士<br>國立臺灣大學<br>分子與細胞生物學研究所<br>99<br>In recent years, mitochondrial DNA and microsatellite sequences are often used as the molecular markers for studying species evolution and population structure. However, to date, appropriate molecular markers for distinguishing closely related species have not been well-established. Our previous study demonstrated that the gene sequences of intermediate filaments (IFs) proteins, one of the major types of cytoskeleton, could separate vertebrates and invertebrates into two different groups in phylogenetic reconstruction. In addition, each of the vertebrate IF

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Turner, Andrew Alexander. "Phylogeography and speciation in the genus arthroleptella." Thesis, 2009. http://hdl.handle.net/11394/3434.

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Philosophiae Doctor - PhD<br>Moss frogs are restricted to permanently moist terrestrial habitats in the south-western Cape Fold Mountains. There is a very close association between Arthroleptella distribution and Table Mountain Sandstone. Suitable habitats are generally occupied by allopatric populations of moss frogs. Comprehensive spatial sampling of moss frogs (genus Arthroleptella) in the Cape Floristic Region biodiversity hotspot yielded 192 new distribution records; 5 842 advertisement calls from 240 individual male frogs; 31 Rag-1,76 16S, 54 12S sequences and morphological measurements

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