Variabilidade gen?tica, morfom?trica e germinativa em popula??es de Schizolobium parahyba (Vell.) Blake
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRRJ |
Texto Completo: | https://tede.ufrrj.br/jspui/handle/tede/475 |
Resumo: | The aim of this work was to estimate the level and distribution of genetic variation within and among five Schizolobium parahyba (guapuruvu) populations and to evaluate the morphometric traits and dormancy of seeds of two populations of these species. The collect was carried out at coastal and mountain regions in the south of Rio de Janeiro. RAPD (Random Amplified Polymorphic DNA) markers were used in order to estimate the similarity of the genotypes and to indicate the genetic distance among individuals and populations. The following morphometric traits of seeds was assessed: width, lenght, thickness and weight. Variation in dormancy level was tested in seeds of two populations comparing the performance of scratching and not scratching seeds. Germination porcentage, germination and emergency speed index, normal seedling porcentage and death porcentage was assessed and compared among individual plant and populations by using ANOVA test. The polymorphic loco was 97%, as expected for a wide distributed specie. Of the total genetic diversity, 89% was atributtable to differences within populations and 11% to differences among populations, indicating a low amount of populations differentiation. The estimative of gene movement among populations revealed a high value (3,18 migrant per generation). Correlations among genetic and geographic distance were not found, indicating the lack of spatial structure of the specie. All morphometric traits differed significantly among individual within each of the population. The individuals plants from the mountain region presented the highest seed size. The major morphometric variation ocurred within population. The seed lenght responded with 60.87% of the total morphometric variation, followed by width (26,58%) and thickness (11,193%). Four groups were created by cluster analysis, with no origin relationship. Dormancy level differed significantly among and within populations and the highest dormancy level was presented by the coastal population. The germination speed index and death porcentage expressed better the dormancy levels than the other variables, differing significantly in the most of individuals trees. Seeds not scratched from mountain population presented better performance than the coastal one. Morphometrical and germination traits were not correlated. There were a high death percentage, specially for the scratched seeds. The role of biotics and abiotics factors in the selection of germination behavior are discussed based in the results and field observations. |
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Pi?a-rodrigues, Fatima Concei??o M?rquez429.398.607-34http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788260D0Corr?a, Ronan Xavier625.548.756-34http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723678U8075.376.787-23http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4769010U6Freire, Juliana M?ller2016-04-28T14:56:18Z2006-10-302005-03-15FREIRE, Juliana M?ller. Variabilidade gen?tica, morfom?trica e germinativa em popula??es de Schizolobium parahyba (Vell.) Blake. 2005. 143 f. Disserta??o (Mestrado em Ci?ncias Ambientais e Florestais) - Instituto de Florestas, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2005.https://tede.ufrrj.br/jspui/handle/tede/475The aim of this work was to estimate the level and distribution of genetic variation within and among five Schizolobium parahyba (guapuruvu) populations and to evaluate the morphometric traits and dormancy of seeds of two populations of these species. The collect was carried out at coastal and mountain regions in the south of Rio de Janeiro. RAPD (Random Amplified Polymorphic DNA) markers were used in order to estimate the similarity of the genotypes and to indicate the genetic distance among individuals and populations. The following morphometric traits of seeds was assessed: width, lenght, thickness and weight. Variation in dormancy level was tested in seeds of two populations comparing the performance of scratching and not scratching seeds. Germination porcentage, germination and emergency speed index, normal seedling porcentage and death porcentage was assessed and compared among individual plant and populations by using ANOVA test. The polymorphic loco was 97%, as expected for a wide distributed specie. Of the total genetic diversity, 89% was atributtable to differences within populations and 11% to differences among populations, indicating a low amount of populations differentiation. The estimative of gene movement among populations revealed a high value (3,18 migrant per generation). Correlations among genetic and geographic distance were not found, indicating the lack of spatial structure of the specie. All morphometric traits differed significantly among individual within each of the population. The individuals plants from the mountain region presented the highest seed size. The major morphometric variation ocurred within population. The seed lenght responded with 60.87% of the total morphometric variation, followed by width (26,58%) and thickness (11,193%). Four groups were created by cluster analysis, with no origin relationship. Dormancy level differed significantly among and within populations and the highest dormancy level was presented by the coastal population. The germination speed index and death porcentage expressed better the dormancy levels than the other variables, differing significantly in the most of individuals trees. Seeds not scratched from mountain population presented better performance than the coastal one. Morphometrical and germination traits were not correlated. There were a high death percentage, specially for the scratched seeds. The role of biotics and abiotics factors in the selection of germination behavior are discussed based in the results and field observations.Os objetivos deste estudo foram estimar o n?vel e a distribui??o da varia??o gen?tica entre e dentro de cinco popula??es de Schizolobium parahyba (guapuruvu), analisar a diversidade morfom?trica e a dorm?ncia de sementes considerando duas popula??es desta esp?cie. As popula??es estudadas est?o localizadas na regi?o litor?nea e serrana do sul do Estado do Rio de Janeiro. A an?lise gen?tica foi realizada utilizando-se marcadores RAPD (Random Amplified Polymorphic DNA) que resultou na estimativa de similaridade dos gen?tipos, indicando a dist?ncia gen?tica entre indiv?duos e entre as popula??es. A an?lise morfom?trica foi realizada em sementes colhidas em duas popula??es, tendo sido avaliadas: largura, comprimento, espessura e peso das sementes. No estudo de germina??o foi avaliado o n?vel de dorm?ncia das sementes, comparando matrizes de duas popula??es. Foram calculados a porcentagem de germina??o, ?ndice de Velocidade de Germina??o (IVG), n?mero de pl?ntulas normais e anormais, ?ndice de Velocidade de Emerg?ncia (IVE) e mortalidade. A diferen?a entre tratamentos e locais foi feita atrav?s da ANOVA. A propor??o de locos polim?rficos foi de 97%, valor considerado compat?vel para uma esp?cie de ampla distribui??o geogr?fica. Da varia??o gen?tica total observada, 89% ocorreu dentro das popula??es e 11% entre as popula??es, indicando um baixo n?vel de diferencia??o entre as popula??es. A estimativa de fluxo g?nico entre popula??es (NM) foi alto, alcan?ando 3,18 migrantes por gera??o. N?o foi encontrada correla??o entre dist?ncia gen?tica e geogr?fica (r=0,036), evidenciando a falta de estrutura??o espacial da esp?cie. A diversidade morfom?trica indicou diferen?a significativa entre matrizes de uma mesma regi?o para todas as vari?veis morfom?tricas analisadas. As matrizes de Miguel Pereira apresentaram maior tamanho de semente do que as de Paraty, sendo esta diferen?a significativa para todas as vari?veis, exceto comprimento. A maior varia??o no tamanho da semente ocorreu a n?vel intra-populacional, sendo significativo para todas as vari?veis. O comprimento respondeu com 60.87% da varia??o total do tamanho da semente, seguido da largura (26,58%) e da espessura (11.193%). A an?lise de agrupamento permitiu a forma??o de quatro grupos, n?o sendo poss?vel associ?-los ? regi?o de origem. A dist?ncia morfom?trica e gen?tica aparentemente n?o apresentaram correla??o. O n?vel de dorm?ncia das sementes variou entre e dentro de popula??es. Paraty apresentou maior diferen?a entre os tratamentos (sementes escarificadas e n?o escarificadas), evidenciando seu maior grau de dorm?ncia. Os par?metros que melhor expressaram a dorm?ncia foram o ?ndice de Velocidade de Germina??o e a taxa de mortalidade. As sementes n?o escarificadas de Miguel Pereira se mostraram superiores as de Paraty em praticamente todos os par?metros germinativos. N?o houve correla??o entre as vari?veis morfom?tricas e germinativas. Houve alta mortalidade das sementes por fungos, principalmente em rela??o ?s sementes escarificadas. A influ?ncia dos fatores bi?ticos e abi?ticos (precipita??o) no comportamento germinativo s?o discutidos com base nos resultados obtidos e observa??es de campo.Made available in DSpace on 2016-04-28T14:56:18Z (GMT). No. of bitstreams: 1 2005 - Juliana Muller Freire.pdf: 826620 bytes, checksum: f7f3878211e26134428516a4db9f4737 (MD5) Previous issue date: 2005-03-15CAPES - Coordena??o de Aperfei?oamento de Pessoal de N?vel Superiorapplication/pdfhttps://tede.ufrrj.br/retrieve/14196/2005%20-%20Juliana%20Muller%20Freire.pdf.jpghttps://tede.ufrrj.br/retrieve/18482/2005%20-%20Juliana%20Muller%20Freire.pdf.jpghttps://tede.ufrrj.br/retrieve/24768/2005%20-%20Juliana%20Muller%20Freire.pdf.jpghttps://tede.ufrrj.br/retrieve/31167/2005%20-%20Juliana%20Muller%20Freire.pdf.jpghttps://tede.ufrrj.br/retrieve/37567/2005%20-%20Juliana%20Muller%20Freire.pdf.jpghttps://tede.ufrrj.br/retrieve/43935/2005%20-%20Juliana%20Muller%20Freire.pdf.jpghttps://tede.ufrrj.br/retrieve/50281/2005%20-%20Juliana%20Muller%20Freire.pdf.jpghttps://tede.ufrrj.br/retrieve/56741/2005%20-%20Juliana%20Muller%20Freire.pdf.jpgporUniversidade Federal Rural do Rio de JaneiroPrograma de P?s-Gradua??o em Ci?ncias Ambientais e FlorestaisUFRRJBrasilInstituto de Florestasestrutura gen?ticadorm?nciatamanho de sementesgenetic structureseed dormancyseed sizeRecursos Florestais e Engenharia FlorestalVariabilidade gen?tica, morfom?trica e germinativa em popula??es de Schizolobium parahyba (Vell.) BlakeGenetic, morphometric and germination variability of guapuruvu (Schizolobium parahyba (Vell.) Blake) populationsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRRJinstname:Universidade Federal Rural do Rio de Janeiro (UFRRJ)instacron:UFRRJTHUMBNAIL2005 - Juliana Muller Freire.pdf.jpg2005 - Juliana Muller Freire.pdf.jpgimage/jpeg2104http://localhost:8080/tede/bitstream/tede/475/17/2005+-+Juliana+Muller+Freire.pdf.jpgc4715912a635b5fbde63d2a9b070733fMD517TEXT2005 - Juliana Muller Freire.pdf.txt2005 - Juliana Muller Freire.pdf.txttext/plain325737http://localhost:8080/tede/bitstream/tede/475/16/2005+-+Juliana+Muller+Freire.pdf.txtb7da3a2ddb3d23552294a029f03cadbbMD516ORIGINAL2005 - Juliana Muller Freire.pdf2005 - Juliana Muller Freire.pdfapplication/pdf826728http://localhost:8080/tede/bitstream/tede/475/1/2005+-+Juliana+Muller+Freire.pdfaaf44b9f0a3112d51a22d80e0fed0717MD51tede/4752022-06-28 22:43:37.237oai:localhost:tede/475Biblioteca Digital de Teses e Dissertaçõeshttps://tede.ufrrj.br/PUBhttps://tede.ufrrj.br/oai/requestbibliot@ufrrj.br||bibliot@ufrrj.bropendoar:2022-06-29T01:43:37Biblioteca Digital de Teses e Dissertações da UFRRJ - Universidade Federal Rural do Rio de Janeiro (UFRRJ)false |
dc.title.por.fl_str_mv |
Variabilidade gen?tica, morfom?trica e germinativa em popula??es de Schizolobium parahyba (Vell.) Blake |
dc.title.alternative.eng.fl_str_mv |
Genetic, morphometric and germination variability of guapuruvu (Schizolobium parahyba (Vell.) Blake) populations |
title |
Variabilidade gen?tica, morfom?trica e germinativa em popula??es de Schizolobium parahyba (Vell.) Blake |
spellingShingle |
Variabilidade gen?tica, morfom?trica e germinativa em popula??es de Schizolobium parahyba (Vell.) Blake Freire, Juliana M?ller estrutura gen?tica dorm?ncia tamanho de sementes genetic structure seed dormancy seed size Recursos Florestais e Engenharia Florestal |
title_short |
Variabilidade gen?tica, morfom?trica e germinativa em popula??es de Schizolobium parahyba (Vell.) Blake |
title_full |
Variabilidade gen?tica, morfom?trica e germinativa em popula??es de Schizolobium parahyba (Vell.) Blake |
title_fullStr |
Variabilidade gen?tica, morfom?trica e germinativa em popula??es de Schizolobium parahyba (Vell.) Blake |
title_full_unstemmed |
Variabilidade gen?tica, morfom?trica e germinativa em popula??es de Schizolobium parahyba (Vell.) Blake |
title_sort |
Variabilidade gen?tica, morfom?trica e germinativa em popula??es de Schizolobium parahyba (Vell.) Blake |
author |
Freire, Juliana M?ller |
author_facet |
Freire, Juliana M?ller |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Pi?a-rodrigues, Fatima Concei??o M?rquez |
dc.contributor.advisor1ID.fl_str_mv |
429.398.607-34 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788260D0 |
dc.contributor.advisor-co1.fl_str_mv |
Corr?a, Ronan Xavier |
dc.contributor.advisor-co1ID.fl_str_mv |
625.548.756-34 |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723678U8 |
dc.contributor.authorID.fl_str_mv |
075.376.787-23 |
dc.contributor.authorLattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4769010U6 |
dc.contributor.author.fl_str_mv |
Freire, Juliana M?ller |
contributor_str_mv |
Pi?a-rodrigues, Fatima Concei??o M?rquez Corr?a, Ronan Xavier |
dc.subject.por.fl_str_mv |
estrutura gen?tica dorm?ncia tamanho de sementes |
topic |
estrutura gen?tica dorm?ncia tamanho de sementes genetic structure seed dormancy seed size Recursos Florestais e Engenharia Florestal |
dc.subject.eng.fl_str_mv |
genetic structure seed dormancy seed size |
dc.subject.cnpq.fl_str_mv |
Recursos Florestais e Engenharia Florestal |
description |
The aim of this work was to estimate the level and distribution of genetic variation within and among five Schizolobium parahyba (guapuruvu) populations and to evaluate the morphometric traits and dormancy of seeds of two populations of these species. The collect was carried out at coastal and mountain regions in the south of Rio de Janeiro. RAPD (Random Amplified Polymorphic DNA) markers were used in order to estimate the similarity of the genotypes and to indicate the genetic distance among individuals and populations. The following morphometric traits of seeds was assessed: width, lenght, thickness and weight. Variation in dormancy level was tested in seeds of two populations comparing the performance of scratching and not scratching seeds. Germination porcentage, germination and emergency speed index, normal seedling porcentage and death porcentage was assessed and compared among individual plant and populations by using ANOVA test. The polymorphic loco was 97%, as expected for a wide distributed specie. Of the total genetic diversity, 89% was atributtable to differences within populations and 11% to differences among populations, indicating a low amount of populations differentiation. The estimative of gene movement among populations revealed a high value (3,18 migrant per generation). Correlations among genetic and geographic distance were not found, indicating the lack of spatial structure of the specie. All morphometric traits differed significantly among individual within each of the population. The individuals plants from the mountain region presented the highest seed size. The major morphometric variation ocurred within population. The seed lenght responded with 60.87% of the total morphometric variation, followed by width (26,58%) and thickness (11,193%). Four groups were created by cluster analysis, with no origin relationship. Dormancy level differed significantly among and within populations and the highest dormancy level was presented by the coastal population. The germination speed index and death porcentage expressed better the dormancy levels than the other variables, differing significantly in the most of individuals trees. Seeds not scratched from mountain population presented better performance than the coastal one. Morphometrical and germination traits were not correlated. There were a high death percentage, specially for the scratched seeds. The role of biotics and abiotics factors in the selection of germination behavior are discussed based in the results and field observations. |
publishDate |
2005 |
dc.date.issued.fl_str_mv |
2005-03-15 |
dc.date.available.fl_str_mv |
2006-10-30 |
dc.date.accessioned.fl_str_mv |
2016-04-28T14:56:18Z |
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info:eu-repo/semantics/masterThesis |
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masterThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
FREIRE, Juliana M?ller. Variabilidade gen?tica, morfom?trica e germinativa em popula??es de Schizolobium parahyba (Vell.) Blake. 2005. 143 f. Disserta??o (Mestrado em Ci?ncias Ambientais e Florestais) - Instituto de Florestas, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2005. |
dc.identifier.uri.fl_str_mv |
https://tede.ufrrj.br/jspui/handle/tede/475 |
identifier_str_mv |
FREIRE, Juliana M?ller. Variabilidade gen?tica, morfom?trica e germinativa em popula??es de Schizolobium parahyba (Vell.) Blake. 2005. 143 f. Disserta??o (Mestrado em Ci?ncias Ambientais e Florestais) - Instituto de Florestas, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2005. |
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https://tede.ufrrj.br/jspui/handle/tede/475 |
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Universidade Federal Rural do Rio de Janeiro |
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Programa de P?s-Gradua??o em Ci?ncias Ambientais e Florestais |
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UFRRJ |
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Brasil |
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Instituto de Florestas |
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Universidade Federal Rural do Rio de Janeiro |
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