GENETIC STRUCTURE OF POPULATIONS OF ARBOREAL SPECIES NATIVE TO SERPENTINE SOILS OF THE CERRADO
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/2314 |
Resumo: | This research was carried out to evaluate the effects of the adaptation to serpentine soils on the genetic structure of plant populations from the Cerrado region of Central Brazil, and establish a DNA extraction protocol for the studied species. Four populations of two species, Hymenaea stignocarpa (jatobá) and Bowdichia virgiloides (sucupira-preta), were studied. Two were collected on serpentine soils and the other two on heavy metal free soils. RAPD molecular marker data from collected individuals were used to evaluate the level of variability and the level of genetic divergence between populations of the same species. The genetic structure was studied using the AMOVA procedure via estimation of the components of genetic variance associated with regions (serpentine vs. non-serpentine). The results were not statistically significant, although some level of divergence between regions had been suggested by a UPGMA dendrogram based on the Jaccard similarity index. The estimate of genetic diversity between populations within group () was statistically significant for ";sucupira-preta"; (0.1189) and ";jatobá"; (0.0692). These results suggest that strong selection pressures derived from the presence of toxic elements in serpentine soils did not promote the reproductive isolation necessary to allow the development of a detectable genetic divergence among populations from serpentine and non serpentine soils.KEY-WORDS: Serpentine soils; genetic drift; RAPD. |
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GENETIC STRUCTURE OF POPULATIONS OF ARBOREAL SPECIES NATIVE TO SERPENTINE SOILS OF THE CERRADOESTRUTURA GENÉTICA DE POPULAÇÕES DE ESPÉCIES ARBÓREAS NATIVAS DO CERRADO ENCONTRADAS EM TERRENOS SERPENTÍNICOSSerpentine soilsgenetic driftRAPDSolos serpentínicosderiva genéticaRAPD This research was carried out to evaluate the effects of the adaptation to serpentine soils on the genetic structure of plant populations from the Cerrado region of Central Brazil, and establish a DNA extraction protocol for the studied species. Four populations of two species, Hymenaea stignocarpa (jatobá) and Bowdichia virgiloides (sucupira-preta), were studied. Two were collected on serpentine soils and the other two on heavy metal free soils. RAPD molecular marker data from collected individuals were used to evaluate the level of variability and the level of genetic divergence between populations of the same species. The genetic structure was studied using the AMOVA procedure via estimation of the components of genetic variance associated with regions (serpentine vs. non-serpentine). The results were not statistically significant, although some level of divergence between regions had been suggested by a UPGMA dendrogram based on the Jaccard similarity index. The estimate of genetic diversity between populations within group () was statistically significant for ";sucupira-preta"; (0.1189) and ";jatobá"; (0.0692). These results suggest that strong selection pressures derived from the presence of toxic elements in serpentine soils did not promote the reproductive isolation necessary to allow the development of a detectable genetic divergence among populations from serpentine and non serpentine soils.KEY-WORDS: Serpentine soils; genetic drift; RAPD. O objetivo dessa pesquisa foi avaliar os efeitos da adaptação a terrenos serpentínicos sobre a estrutura genética de populações de plantas da região dos Cerrados do Brasil Central, bem como estabelecer um protocolo para extração de DNA das espécies estudadas. Quatro populações de cada uma de duas espécies, Hymenaea stignocarpa Mart.(jatobá) e Bowdichia virgiloides Kunth. (sucupira-preta), foram estudadas, duas em terrenos serpentínicos e duas em solos livres de metais pesados. Foram usados dados de marcadores moleculares RAPD para avaliar o nível de variabilidade e de divergência genética entre populações da mesma espécie. A estrutura genética de cada espécie foi estudada usando o procedimento AMOVA, pela estimação dos componentes de variância genética associados a regiões (serpentínico vs não serpentínico). Os resultados foram estatisticamente não significativos, embora algum nível de divergência entre regiões tenha sido sugerido pelo dendrograma UPGMA baseado no índice de similaridade de Jaccard. A estimativa da divergência genética entre populações dentro de grupos () foi significativa para sucupira-preta (0,1189) e jatobá (0,0692). Estes resultados sugerem que, apesar da forte pressão de seleção derivada da presença de elementos tóxicos nos solos serpentínicos, isso não foi suficiente para promover o isolamento reprodutivo necessário para permitir a divergência genética entre populações localizadas nos diferentes tipos de solos. PALAVRAS-CHAVE: Solos serpentínicos; deriva genética; RAPD.Escola de Agronomia - Universidade Federal de Goiás2007-11-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresEstado de Goiás; Brasilapplication/savehttps://revistas.ufg.br/pat/article/view/2314Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 34, n. 2, May/Aug. 2004; 75-82Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 34, n. 2, mai./ago. 2004; 75-82Pesquisa Agropecuária Tropical; v. 34, n. 2, mai./ago. 2004; 75-821983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/2314/2293Pereira, Marlei de FátimaValva, Fabrízio D'AyalaCoelho, Alexandre Siqueira GuedesAguiar, Ananda VirginiaZucchi, Maria Imaculadainfo:eu-repo/semantics/openAccess2020-02-26T23:58:39Zoai:ojs.revistas.ufg.br:article/2314Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:55:03.238302Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
GENETIC STRUCTURE OF POPULATIONS OF ARBOREAL SPECIES NATIVE TO SERPENTINE SOILS OF THE CERRADO ESTRUTURA GENÉTICA DE POPULAÇÕES DE ESPÉCIES ARBÓREAS NATIVAS DO CERRADO ENCONTRADAS EM TERRENOS SERPENTÍNICOS |
title |
GENETIC STRUCTURE OF POPULATIONS OF ARBOREAL SPECIES NATIVE TO SERPENTINE SOILS OF THE CERRADO |
spellingShingle |
GENETIC STRUCTURE OF POPULATIONS OF ARBOREAL SPECIES NATIVE TO SERPENTINE SOILS OF THE CERRADO Pereira, Marlei de Fátima Serpentine soils genetic drift RAPD Solos serpentínicos deriva genética RAPD |
title_short |
GENETIC STRUCTURE OF POPULATIONS OF ARBOREAL SPECIES NATIVE TO SERPENTINE SOILS OF THE CERRADO |
title_full |
GENETIC STRUCTURE OF POPULATIONS OF ARBOREAL SPECIES NATIVE TO SERPENTINE SOILS OF THE CERRADO |
title_fullStr |
GENETIC STRUCTURE OF POPULATIONS OF ARBOREAL SPECIES NATIVE TO SERPENTINE SOILS OF THE CERRADO |
title_full_unstemmed |
GENETIC STRUCTURE OF POPULATIONS OF ARBOREAL SPECIES NATIVE TO SERPENTINE SOILS OF THE CERRADO |
title_sort |
GENETIC STRUCTURE OF POPULATIONS OF ARBOREAL SPECIES NATIVE TO SERPENTINE SOILS OF THE CERRADO |
author |
Pereira, Marlei de Fátima |
author_facet |
Pereira, Marlei de Fátima Valva, Fabrízio D'Ayala Coelho, Alexandre Siqueira Guedes Aguiar, Ananda Virginia Zucchi, Maria Imaculada |
author_role |
author |
author2 |
Valva, Fabrízio D'Ayala Coelho, Alexandre Siqueira Guedes Aguiar, Ananda Virginia Zucchi, Maria Imaculada |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Pereira, Marlei de Fátima Valva, Fabrízio D'Ayala Coelho, Alexandre Siqueira Guedes Aguiar, Ananda Virginia Zucchi, Maria Imaculada |
dc.subject.por.fl_str_mv |
Serpentine soils genetic drift RAPD Solos serpentínicos deriva genética RAPD |
topic |
Serpentine soils genetic drift RAPD Solos serpentínicos deriva genética RAPD |
description |
This research was carried out to evaluate the effects of the adaptation to serpentine soils on the genetic structure of plant populations from the Cerrado region of Central Brazil, and establish a DNA extraction protocol for the studied species. Four populations of two species, Hymenaea stignocarpa (jatobá) and Bowdichia virgiloides (sucupira-preta), were studied. Two were collected on serpentine soils and the other two on heavy metal free soils. RAPD molecular marker data from collected individuals were used to evaluate the level of variability and the level of genetic divergence between populations of the same species. The genetic structure was studied using the AMOVA procedure via estimation of the components of genetic variance associated with regions (serpentine vs. non-serpentine). The results were not statistically significant, although some level of divergence between regions had been suggested by a UPGMA dendrogram based on the Jaccard similarity index. The estimate of genetic diversity between populations within group () was statistically significant for ";sucupira-preta"; (0.1189) and ";jatobá"; (0.0692). These results suggest that strong selection pressures derived from the presence of toxic elements in serpentine soils did not promote the reproductive isolation necessary to allow the development of a detectable genetic divergence among populations from serpentine and non serpentine soils.KEY-WORDS: Serpentine soils; genetic drift; RAPD. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-11-09 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado por pares Estado de Goiás; Brasil |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/pat/article/view/2314 |
url |
https://revistas.ufg.br/pat/article/view/2314 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/2314/2293 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/save |
dc.publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 34, n. 2, May/Aug. 2004; 75-82 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 34, n. 2, mai./ago. 2004; 75-82 Pesquisa Agropecuária Tropical; v. 34, n. 2, mai./ago. 2004; 75-82 1983-4063 reponame:Pesquisa Agropecuária Tropical (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Pesquisa Agropecuária Tropical (Online) |
collection |
Pesquisa Agropecuária Tropical (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
aseleguini.pat@gmail.com||mgoes@agro.ufg.br |
_version_ |
1799874813938892800 |