Diss. (sammanfattning) Stockholm : Univ., 2005. / Härtill 4 uppsatser.

Thesis (Ph.D.)--University of Wollongong, 2007. / Typescript. Includes bibliographical references: p. 128-139.

Mémoire (M.Ress.Renouv.)--Université du Québec à Chicoutimi, 1999. / Document électronique également accessible en format PDF. CaQCU

Title from title page of PDF (University of Missouri--St. Louis, viewed March 22, 2010). Includes bibliographical references.

Thesis (M.S.)--Cleveland State University, 2009. / Abstract. Title from PDF t.p. (viewed on Sept. 8, 2009). Includes bibliographical references (p. 70-73). Available online via the OhioLINK ETD Center and also available in print.

- / -

Orientador: Lin Chau Ming / Banca: Giuseppina Pace Pereira Lima / Banca: Ana Paula Fortuna Perez / Banca: Igor Otávio Minatel / Banca: Camila Renata Corrêa Camacho / Resumo: As relações e interações entre os seres humanos e as passifloras são múltiplas e complexas, incluindo casos como a domesticação, dispersão, aproveitamento e depredação de espécies (entre outras). Dada sua importância econômica, as passifloras constituem um recurso genético muito importante e a caracterização de populações silvestres e cultivadas é uma prioridade para os países neotropicais que albergam a maior diversidade do gênero. Mais de 80 espécies produzem frutos comestíveis e pelo menos 37 são cultivadas local e regionalmente. A implementação de estratégias para a conservação e o aproveitamento destes recursos fitogenéticos são necessárias, devido ao seu potencial para o desenvolvimento e diversificação de agricultura. O estudo aprofundado das relações humanas com as plantas cultivadas do gênero Passiflora pretende contribuir com delineamentos para programas de conservação da biodiversidade de passifloráceas. Neste trabalho são abordadas informações agroecológicas, biogeográficas e etnobotânicas correspondentes às espécies úteis de Passiflora. / Abstract: Relationships and interactions between humans and passionflowers are multiple and complex, including cases such as domestication (among others). Due to their economic importance, passiflowers constitute a very important genetic resource and the characterization of wild and cultivated populations is a priority for Neotropical countries that have the greatest diversity of the genus. More than 80 species produce edible fruits and at least 37 are grown locally and regionally. The implementation of strategies for the conservation and utilization of these genetic resources are necessary due to their potential for the development and diversification of agriculture. A depth study of cultivated plants of the genus Passiflora intends to contribute with designs for programs of conservation of the biodiversity of Passifloracea. In this work the agroecological, biogeographic and ethnobotanical information corresponding to the useful species of Passiflora are presented and discussed ... / Doutor

Orientador: Vítor Fernandes Oliveira de Miranda / Banca: Fábio Pinheiro / Banca: Alessandro de Mello Varani / Banca: Maurício Bacci Junior / Banca: Rinaldo Cesar de Paula / Resumo: Utricularia foliosa e U. gibba são espécies pertencentes à seção Utricularia e apresentam ampla distribuição e variabilidade morfológica. A ocorrência das duas espécies no Brasil e Cuba, a grande distância geográfica entre as regiões, assim como, as diversas barreiras e eventos demográficos ocorridos na região Neotropical podem ter desencadeado processos evolutivos nas espécies que poderiam ser elucidados mediante estudos genéticos de dinâmica populacional. Além destes estudos, trabalhos polínicos também constituem uma importante ferramenta para estabelecer diferenças entre espécies. Partindo destas considerações, o presente estudo teve como objetivos analisar a diversidade genética de populações de U. foliosa e U. gibba do Brasil e Cuba utilizando caracteres moleculares para posteriormente estabelecer relações entre as áreas de distribuição assim como inferir padrões demográficos e filogeográficos para ajudar compreender a história evolutiva de cada espécie. Além disso, caracterizar a morfologia polínica dos táxons de Lentibulariaceae que ocorrem na região ocidental de Cuba. Os resultados mostraram que U. foliosa possui altas taxas de diversidade genética, o que poderia estar condicionado pelo fluxo genético entre populações. As duas espécies mostraram compartilhamento de haplótipos entre as populações e as áreas geográficas (Brasil-Cuba), o que pode estar condicionado por recentes processos de dispersão influenciados pelo habitat aquático onde ocorrem. Por outro lado, a mor... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Utricularia foliosa and U. gibba are species that belong to the section Utricularia and present a wide distribution and morphological variability. The occurrence of the two species in Brazil and Cuba, the geographic distance between the regions, as well as the different barriers and demographic events occurred in the Neotropical region may have caused evolutionary processes in the species that could be elucidated by genetic studies of population dynamics. Besides these studies, pollen analysis also constitutes a important tool to establish differences between these species. Based on these considerations, the present study aimed to analyze the genetic diversity of U. foliosa and U. gibba populations present in Brazil and Cuba using molecular characters to later establish relationships between the distribution areas as well as to infer demographic and phylogeographic patterns that may help to understand the evolutionary history of each species, and to characterize the pollen morphology of the Lentibulariaceae taxa that occur in western Cuba. The results showed that U. foliosa has high rates of genetic diversity, which could be conditioned by the genetic flow between populations. The two species showed shared haplotype between populations and geographical areas (Brazil-Cuba), which may be conditioned by recent dispersal processes influenced by the aquatic habitat where they occur. On the other hand, the pollen morphology of the family Lentibulariaceae in the western region of Cuba showed variation between Genlisea, Pinguicula and Utricularia, being is described for the first time for the genus Pinguicula ser. Albidae, the presence of endo-apertures with fastigia. / Doutor

The plant family Gesneriaceae is represented in Sri Lanka by six genera: Aeschynanthus, Epithema, Championia, Henckelia, Rhynchoglossum and Rhynchotechum, with 13 species (plus one subspecies/variety) of which ten are endemic including the monotypic genus Championia, according to the last revision in 1981. They are exclusively distributed in undisturbed habitats, and some have high ornamental value. The species are morphologically diverse, but face a problem of taxonomic delineation, which is further complicated by the presence of putative hybrids. Sri Lanka and Indian Peninsula, represent the Deccan plate of the ancient Gondwanan supercontinent. The presence of a relict flora may indicate the significance of the geological history of the Deccan plate for the evolution of angiosperms. The high degree of endemism here, along with their affinities to the global angiosperm flora paints a complex picture, but its biogeographic history is still unclear. The pantropical family Gesneriaceae distributed in Sri Lanka and South India is therefore an appropriate study group in this context. Besides, the family itself has a complex but largely unresolved biogeographical history especially concerning the origin and diversification of Old World Gesneriaceae. Modern approaches for the taxonomic studies were applied, integrating morphological and molecular data. Multiple samples were collected for each species across their geographical distribution. Nuclear ITS and chloroplast trnL-F sequences for the taxa from Sri Lanka were used to generate regional genus phylogenies of all six genera, using maximum parsimony. The rate of evolution of the nuclear ITS region versus chloroplast trnL-F was varied greatly across the six genera studied. Molecular delimitations were mostly congruent with the classical taxonomy. Over 65 taxonomic characters were studied in detail to recognize synapomorphies for clades and taxa. A complete taxonomic revision of Gesneriaceae in Sri Lanka, including lectotypification, was conducted based on both, the molecular and morphological data. This resulted in the recognition of 14 species in the six genera, including one newly described species H. wijesundarae Ranasinghe and Mich. Möller. Henckelia communis and H. angusta were not supported molecularly as two separate entities but are recognized as two species because of consistent morphological differences between them. Henckelia humboldtiana is proposed to represent a species complex due to its highly variable and inconsistent molecular and morphological diversity and overlap with H. incana and H. floccosa; more research is needed here. National conservation assessments were conducted, and all 14 species were recognized as threatened. Biogeographic affinities of Sri Lankan Gesneriaceae were elucidated, generating a dated phylogeny using an existing matrix of four plastid gene regions; trnL-F, matK, rps16 and ndhF, amended by sequences generated in this study. The final combined matrix included 175 taxa including newly generated sequences for the 13 Sri Lankan taxa. Phylogenetic trees were generated using parsimony, maximum likelihood and Bayesian inference. Molecular dating was carried out using BEAST and ancestral area reconstruction using BioGeoBears. These analyses indicated that the six genera of Gesneriaceae arrived in Sri Lanka separately and sometimes different time periods. One lineage dated back to the early diversification of the subfamily Didymocarpoideae (generally regarded as the Old World Gesneriaceae), which occurred around the KT boundary, before the Deccan plate was connected to Asia.

O gênero Nezara foi revisado e foram propostas as relações de parentesco entre as espécies. É fornecida uma diagnose para o gênero e para as espécies, além de uma chave dicotômica para separação das espécies. A análise cladística incluiu 15 táxons e 34 caracteres. O cladograma foi enraizado em Carpocoris purpureipennis (DeGeer) por representar uma linhagem basal de Pentatomidae. O grupo externo ainda incluiu Aehtemenes chloris (Dallas) e Pseudoacrosternum cachani Day, grupo irmão de Nezara. Os resultados demonstraram a monofilia do gênero. Cenários biogeográficos sobre a evolução do grupo são apresentados. A regionalização no trabalho dos sistematas é apontada como uma das principais causas da fragmentação do conhecimento e da falta de propostas hierárquicas para Pentatomidae no nível de sub-familia e tribo. Em uma proposta recente a tribo Nezarini está composta por 21 gêneros, com um total de 206 espécies. Foi realizada uma análise cladística, com o objetivo de testar as relações do grupo Nezara com outros gêneros propostos para Nezarini, e com táxons empiricamente relacionados pertencentes às tribos Antestini, Bathycoeliini e Pentatomini. A análise incluiu 32 taxons terminais, sendo 17 do grupo interno, representando 13 gêneros de Nezarini. O grupo externo incluiu 15 taxons pertencentes às tribos Antestini (6 spp.), Bathycoeliini (1 sp.), Carpocorini (2 spp.), Pentatomini (5 spp.) e Thyanta perditor (unplaced). Dos 51 caracteres analisados, 11 referem-se a caracteres de cabeça, nove de tórax, cinco de abdômen, 10 de genitália de fêmea e 16 de genitália de macho. Não foi possível corroborar uma hipótese de monofilia para Nezarini. Com o objetivo de analisar os padrões de distribuição de 14 gêneros predominantemente neotropicais de Pentatomidae (Agroecus Dallas, Antiteuchus Dallas, Arocera Spinola, Brachystethus Laporte, Cataulax Spinola, Chinavia Orian, Dichelops Spinola, Pallantia Stål, Rio Kirkaldy, Thyanta Stål, Serdia Stål e grupo Evoplitus) foi aplicada uma Análise de Endemicidade (EA), com o software NDN (eNDemisM), para identificação das áreas. Os resultados obtidos foram comparados com áreas previamente delimitadas. Utilizou-se um consenso flexível, com a opção de 40% de similaridade mínima de espécies endêmicas para o agrupamento das áreas inicialmente encontradas. Foram encontradas quatro áreas endêmicas para a análise baseada em quadriculas de 2,5° latitude-longitude e 17 áreas para quadrículas de 5° latitude-longitude. / Nezara Amyot & Serville is reviewed and a hypothesis of relationships among its species is proposed. Diagnosis for the genus and the included species, as well a key to separate the species are also provided. The cladistic analysis included 15 taxa and 34 characters. Cladogram was rooted in Carpocoris purpureipennis (DeGeer) which represents a basal lineage within Pentatomidae; outgroup comparision also included species of the sister-groups Aehtemenes chloris (Dallas), and Pseudoacrosternum cachani Day. The results showed Nezara as a monophyletic taxon. Biogeographical scenarios of the evolution of Nezara were discussed. A key to separate the species is also provided. The lack of robust higher classifications in Pentatomidae, using cladistics, are due to the regional work of the taxonomists. Nezarini was proposed to include 21 genera and 206 species. A cladistic analysis was performed to test the relationships of the Nezara group with other genera belonging to Nezarini, and to the tribes Antestini, Bathycoeliini and Pentatomini. The analysis included 32 terminal taxa; the ingroup comprised 17 taxa representing 13 Nezarini genera. Outgroup included 15 taxa belonging to Antestini (6 spp.), Bathycoeliini (1 sp.), Carpocorini (2 spp.), Pentatomini (5 spp.) and Thyanta perditor (unplaced). Fifty one characters were considered, 11 related to head morphology, nine of thorax, five of abdomen, 10 of female genitalia, and 16 of male genitalia. A hypothesis of Nezarini monophyly was not obtained. Distributional patterns of 14 neotropical genera of Pentatomidae (Agroecus Dallas, Antiteuchus Dallas, Arocera Spinola, Brachystethus Laporte, Cataulax Spinola, Chinavia Orian, Dichelops Spinola, Pallantia Stål, Rio Kirkaldy, Thyanta Stål, Serdia Stål, and Evoplitus group) were searched through an Endemicity Analysis (EA) with the NDM (eNDemisM) software for identification of the areas. The results were compared with areas previously set by others studies. Flexible consensus was applied, with 40% of minimum similarity of endemic species for the grouping of areas initially found. Four endemic areas for the analysis based in grids of 2,5° latitude-longitude and 17 areas in grids of 5° latitude-longitude were found.