Estudos populacionais e delimita??o espec?fica do complexo de esp?cies tibouchina pereirae brade & markgraf
Ano de defesa: | 2017 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Estadual de Feira de Santana
|
Programa de Pós-Graduação: |
Doutorado Acad?mico em Bot?nica
|
Departamento: |
DEPARTAMENTO DE CI?NCIAS BIOL?GICAS
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://tede2.uefs.br:8080/handle/tede/738 |
Resumo: | A study of morphological and genetic variation within the Tibouchina pereirae species complex, a group of five species endemic to the ?campos rupestres? of Chapada Diamantina, is here presented. These species are generally shrubs with leaves grouped at the apex of branches, lilac to purple flowers with dimorphic in size anthers pollinated by large solitary bees, and loculicidal capsules with small seeds dispersed by gravity. These species have different morphotypes with overlapping morphological characters that difficult species delimitation by traditional methodologies. A total of 540 specimens from 27 sampling localities were collected along all the distribution range of the complex. These specimens were analyzed with several methodologies to assess patterns of morphologic and genetic variation in order to infer the evolutionary history of the group, patterns of morphologic and genetic diversity, gene flow, and demographic history. Thus, this is a contribution for the understanding of processes affecting lineage distribution, diversification, evolutionary history, and species delimitation within the species complex. Preliminary results indicated one of those lineages within the complex should be better treated as a different species (Pleroma rubrum) and its formal description is included here. Results from the morphometric analyses showed a relationship between leaf shapes and size among species in the complex. Furthermore, leaf asymmetry analyses revealed patterns not generally included in plant morphologic variation studies. The DNA data indicated high genetic diversity within species and genetic separation between them, despite differences between traditional morphologic delimitation and genetic data for all species. This suggest hybridization and introgression has played and important role in the evolutionary dynamic of the complex. The estimated diversification time of the complex corresponded with the lineage diversification of fire-adapted plants and the expansion of tropical savanna ecosystems dominated by C4 grasses. In addition, results showed that northernmost localities from Chapada Diamantina provably served as refugia for these species during past climatic oscillations |
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van den Berg, C?ssiohttp://lattes.cnpq.br/212996376054389800499419502http://lattes.cnpq.br/0931445055892698Freitas, Juliana Gomes2019-04-22T22:13:57Z2017-05-30FREITAS, Juliana Gomes. Estudos populacionais e delimita??o espec?fica do complexo de esp?cies tibouchina pereirae brade & markgraf. 2017. 140f.Tese (Doutorado Acad?mico em Bot?nica) - Universidade Estadual de Feira de Santana, Feira de Santana, 2017.http://tede2.uefs.br:8080/handle/tede/738A study of morphological and genetic variation within the Tibouchina pereirae species complex, a group of five species endemic to the ?campos rupestres? of Chapada Diamantina, is here presented. These species are generally shrubs with leaves grouped at the apex of branches, lilac to purple flowers with dimorphic in size anthers pollinated by large solitary bees, and loculicidal capsules with small seeds dispersed by gravity. These species have different morphotypes with overlapping morphological characters that difficult species delimitation by traditional methodologies. A total of 540 specimens from 27 sampling localities were collected along all the distribution range of the complex. These specimens were analyzed with several methodologies to assess patterns of morphologic and genetic variation in order to infer the evolutionary history of the group, patterns of morphologic and genetic diversity, gene flow, and demographic history. Thus, this is a contribution for the understanding of processes affecting lineage distribution, diversification, evolutionary history, and species delimitation within the species complex. Preliminary results indicated one of those lineages within the complex should be better treated as a different species (Pleroma rubrum) and its formal description is included here. Results from the morphometric analyses showed a relationship between leaf shapes and size among species in the complex. Furthermore, leaf asymmetry analyses revealed patterns not generally included in plant morphologic variation studies. The DNA data indicated high genetic diversity within species and genetic separation between them, despite differences between traditional morphologic delimitation and genetic data for all species. This suggest hybridization and introgression has played and important role in the evolutionary dynamic of the complex. The estimated diversification time of the complex corresponded with the lineage diversification of fire-adapted plants and the expansion of tropical savanna ecosystems dominated by C4 grasses. In addition, results showed that northernmost localities from Chapada Diamantina provably served as refugia for these species during past climatic oscillations? apresentado um estudo da varia??o morfol?gica e gen?tica do complexo de esp?cies Tibouchina pereirae, composto por cinco esp?cies end?micas da Chapada Diamantina, ocorrentes em ?reas de campos rupestres. As esp?cies s?o morfologicamente caracterizadas por arbustos com folhas agrupadas no ?pice dos ramos, flores lil?s a p?rpura, com heteranteria, especializadas para a poliniza??o por abelhas de grande porte, al?m das sementes diminutas, agrupadas em c?psulas loculicidas que promovem a dispers?o por gravidade. Essas esp?cies apresentam morfotipos com sobreposi??o de caracteres morfol?gicos que dificultam a delimita??o espec?fica por meios tradicionais. Foram amostrados 540 indiv?duos em 27 localidades de coleta, por toda a ?rea de distribui??o das esp?cies, os quais foram analisados atrav?s de m?todos da morfometria geom?trica, estudos da diversidade gen?tica e filogeografia, buscando-se conhecer um pouco sobre a hist?ria evolutiva do complexo, com informa??es sobre a diversidade morfol?gica e gen?tica, padr?es de fluxo g?nico e hist?ria demogr?fica do complexo. Dessa forma, estamos contribuindo com o entendimento dos processos que afetaram a distribui??o das esp?cies, a diversifica??o, o hist?rico evolutivo dos t?xons e a delimita??o espec?fica dentro do complexo. Os resultados preliminares revelaram a distin??o de uma das linhagens do complexo sob a categoria de esp?cie, a qual foi descrita (Pleroma rubrum) e est? inclu?da nas investiga??es deste trabalho. Resultados obtidos nas an?lises de morfometria geom?trica mostram que existe forte rela??o entre a varia??o da forma e o tamanho das folhas nas esp?cies do complexo T. pereirae. Al?m disso, an?lises de assimetria foliar revelaram padr?es morfol?gicos, n?o explorados em varia??o morfol?gica de plantas. Os dados gen?ticos obtidos atrav?s do ITS e rpl32-trnL, revelaram elevada diversidade gen?tica no complexo de esp?cies e distin??o interespec?fica, apesar de not?rias diferen?as entre a delimita??o morfol?gica tradicional e os dados gen?ticos em popula??es de todas as esp?cies. Isto sugere que hibridiza??o e introgress?o tem exercido um papel importante na din?mica evolutiva do complexo. O tempo de diversifica??o estimado para o complexo T. pereirae ? coincidente com a diversifica??o de linhagens de plantas adaptadas ao fogo, bem como com a expans?o dos ecossistemas de savana que s?o dominados por ervas C4. Al?m disso, os resultados revelaram que as localidades mais ao norte da Chapada Diamantina, possivelmente funcionaram como ref?gios para as esp?cies durante as varia??es clim?ticas do passadoSubmitted by Verena Pereira (verenagoncalves@uefs.br) on 2019-04-22T22:13:57Z No. of bitstreams: 1 Tese-Final- Juliana Freitas.pdf: 28682149 bytes, checksum: 4f55174db0f7086ec0125224e32a4ba5 (MD5)Made available in DSpace on 2019-04-22T22:13:57Z (GMT). No. of bitstreams: 1 Tese-Final- Juliana Freitas.pdf: 28682149 bytes, checksum: 4f55174db0f7086ec0125224e32a4ba5 (MD5) Previous issue date: 2017-05-30Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPESapplication/pdfporUniversidade Estadual de Feira de SantanaDoutorado Acad?mico em Bot?nicaUEFSBrasilDEPARTAMENTO DE CI?NCIAS BIOL?GICASCampos rupestresChapada DiamantinaDiversidade gen?ticaFilogeografia de TibouchinaMelastomataceaeMorfometria geom?tricaPleromacampos rupestresChapada DiamantinaGenetic diversityGeometric morphometricsMelastomataceaePhylogeography of TibouchinaPleromaBOTANICA::BOTANICA APLICADAEstudos populacionais e delimita??o espec?fica do complexo de esp?cies tibouchina pereirae brade & markgrafinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis-4908229543721086191600600600600502612338345058928259250118293197842713590462550136975366info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UEFSinstname:Universidade Estadual de Feira de Santana (UEFS)instacron:UEFSORIGINALTese-Final- Juliana Freitas.pdfTese-Final- Juliana Freitas.pdfapplication/pdf28682149http://tede2.uefs.br:8080/bitstream/tede/738/2/Tese-Final-+Juliana+Freitas.pdf4f55174db0f7086ec0125224e32a4ba5MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82089http://tede2.uefs.br:8080/bitstream/tede/738/1/license.txt7b5ba3d2445355f386edab96125d42b7MD51tede/7382019-04-22 19:13:57.908oai:tede2.uefs.br:8080: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Biblioteca Digital de Teses e Dissertaçõeshttp://tede2.uefs.br:8080/PUBhttp://tede2.uefs.br:8080/oai/requestbcuefs@uefs.br|| bcref@uefs.br||bcuefs@uefs.bropendoar:2019-04-22T22:13:57Biblioteca Digital de Teses e Dissertações da UEFS - Universidade Estadual de Feira de Santana (UEFS)false |
dc.title.por.fl_str_mv |
Estudos populacionais e delimita??o espec?fica do complexo de esp?cies tibouchina pereirae brade & markgraf |
title |
Estudos populacionais e delimita??o espec?fica do complexo de esp?cies tibouchina pereirae brade & markgraf |
spellingShingle |
Estudos populacionais e delimita??o espec?fica do complexo de esp?cies tibouchina pereirae brade & markgraf Freitas, Juliana Gomes Campos rupestres Chapada Diamantina Diversidade gen?tica Filogeografia de Tibouchina Melastomataceae Morfometria geom?trica Pleroma campos rupestres Chapada Diamantina Genetic diversity Geometric morphometrics Melastomataceae Phylogeography of Tibouchina Pleroma BOTANICA::BOTANICA APLICADA |
title_short |
Estudos populacionais e delimita??o espec?fica do complexo de esp?cies tibouchina pereirae brade & markgraf |
title_full |
Estudos populacionais e delimita??o espec?fica do complexo de esp?cies tibouchina pereirae brade & markgraf |
title_fullStr |
Estudos populacionais e delimita??o espec?fica do complexo de esp?cies tibouchina pereirae brade & markgraf |
title_full_unstemmed |
Estudos populacionais e delimita??o espec?fica do complexo de esp?cies tibouchina pereirae brade & markgraf |
title_sort |
Estudos populacionais e delimita??o espec?fica do complexo de esp?cies tibouchina pereirae brade & markgraf |
author |
Freitas, Juliana Gomes |
author_facet |
Freitas, Juliana Gomes |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
van den Berg, C?ssio |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/2129963760543898 |
dc.contributor.authorID.fl_str_mv |
00499419502 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/0931445055892698 |
dc.contributor.author.fl_str_mv |
Freitas, Juliana Gomes |
contributor_str_mv |
van den Berg, C?ssio |
dc.subject.por.fl_str_mv |
Campos rupestres Chapada Diamantina Diversidade gen?tica Filogeografia de Tibouchina Melastomataceae Morfometria geom?trica Pleroma |
topic |
Campos rupestres Chapada Diamantina Diversidade gen?tica Filogeografia de Tibouchina Melastomataceae Morfometria geom?trica Pleroma campos rupestres Chapada Diamantina Genetic diversity Geometric morphometrics Melastomataceae Phylogeography of Tibouchina Pleroma BOTANICA::BOTANICA APLICADA |
dc.subject.eng.fl_str_mv |
campos rupestres Chapada Diamantina Genetic diversity Geometric morphometrics Melastomataceae Phylogeography of Tibouchina Pleroma |
dc.subject.cnpq.fl_str_mv |
BOTANICA::BOTANICA APLICADA |
description |
A study of morphological and genetic variation within the Tibouchina pereirae species complex, a group of five species endemic to the ?campos rupestres? of Chapada Diamantina, is here presented. These species are generally shrubs with leaves grouped at the apex of branches, lilac to purple flowers with dimorphic in size anthers pollinated by large solitary bees, and loculicidal capsules with small seeds dispersed by gravity. These species have different morphotypes with overlapping morphological characters that difficult species delimitation by traditional methodologies. A total of 540 specimens from 27 sampling localities were collected along all the distribution range of the complex. These specimens were analyzed with several methodologies to assess patterns of morphologic and genetic variation in order to infer the evolutionary history of the group, patterns of morphologic and genetic diversity, gene flow, and demographic history. Thus, this is a contribution for the understanding of processes affecting lineage distribution, diversification, evolutionary history, and species delimitation within the species complex. Preliminary results indicated one of those lineages within the complex should be better treated as a different species (Pleroma rubrum) and its formal description is included here. Results from the morphometric analyses showed a relationship between leaf shapes and size among species in the complex. Furthermore, leaf asymmetry analyses revealed patterns not generally included in plant morphologic variation studies. The DNA data indicated high genetic diversity within species and genetic separation between them, despite differences between traditional morphologic delimitation and genetic data for all species. This suggest hybridization and introgression has played and important role in the evolutionary dynamic of the complex. The estimated diversification time of the complex corresponded with the lineage diversification of fire-adapted plants and the expansion of tropical savanna ecosystems dominated by C4 grasses. In addition, results showed that northernmost localities from Chapada Diamantina provably served as refugia for these species during past climatic oscillations |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017-05-30 |
dc.date.accessioned.fl_str_mv |
2019-04-22T22:13:57Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/doctoralThesis |
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doctoralThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
FREITAS, Juliana Gomes. Estudos populacionais e delimita??o espec?fica do complexo de esp?cies tibouchina pereirae brade & markgraf. 2017. 140f.Tese (Doutorado Acad?mico em Bot?nica) - Universidade Estadual de Feira de Santana, Feira de Santana, 2017. |
dc.identifier.uri.fl_str_mv |
http://tede2.uefs.br:8080/handle/tede/738 |
identifier_str_mv |
FREITAS, Juliana Gomes. Estudos populacionais e delimita??o espec?fica do complexo de esp?cies tibouchina pereirae brade & markgraf. 2017. 140f.Tese (Doutorado Acad?mico em Bot?nica) - Universidade Estadual de Feira de Santana, Feira de Santana, 2017. |
url |
http://tede2.uefs.br:8080/handle/tede/738 |
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por |
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por |
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600 600 600 600 |
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5925011829319784271 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Universidade Estadual de Feira de Santana |
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Universidade Estadual de Feira de Santana |
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