Genetic diversity among farm and germplasm bank accessions of cacao in Bahia, Brazil

Detalhes bibliográficos
Autor(a) principal: Leal, Jeiza Botelho
Data de Publicação: 2008
Outros Autores: Santos, Leonardo Moreira dos, Santos, Crisliane Aparecida Pereira dos, Pires, José Luís, Ahnert, Dário, Carrêa, Ronan Xavier
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/266
Resumo: The objective of this work was to assess genetic diversity of farm cacao accessions, previously selected as productive and resistant to witch broom in Bahia, Brazil, and to study their interrelationship with reference genotypes on germplasm bank. DNA samples from 120 cacao accessions, collected on 17 farms in seven counties in Southern Bahia, were amplified by RAPD technique (random amplified polymorphic DNA). The coefficients of genetic dissimilarity, calculated from the RAPD bands by Jaccard method, allowed to show by cluster analysis that most farm selections (89.2%) grouped with accessions from germplasm bank considered representatives of the cacao genetic diversity (hybrids, Trinitarian, Scavina, Amazon and common cacao). The other selections were distributed in seven distinct groups. There is high genetic diversity among farm selections, and some of them may have originated from other progenitors not included in this analysis. These materials present potential for clone selection with higher diversity for new crossings or direct use by agriculturists.
id EMBRAPA-4_ea26b62f22553036df90b51a740ec76b
oai_identifier_str oai:ojs.seer.sct.embrapa.br:article/266
network_acronym_str EMBRAPA-4
network_name_str Pesquisa Agropecuária Brasileira (Online)
repository_id_str
spelling Genetic diversity among farm and germplasm bank accessions of cacao in Bahia, BrazilDiversidade genética entre acessos de cacau de fazendas e de banco de germoplasma na BahiaTheobroma cacao; molecular markers; breeding; witch broomTheobroma cacao; marcador molecular; melhoramento genético; vassoura-de-bruxaThe objective of this work was to assess genetic diversity of farm cacao accessions, previously selected as productive and resistant to witch broom in Bahia, Brazil, and to study their interrelationship with reference genotypes on germplasm bank. DNA samples from 120 cacao accessions, collected on 17 farms in seven counties in Southern Bahia, were amplified by RAPD technique (random amplified polymorphic DNA). The coefficients of genetic dissimilarity, calculated from the RAPD bands by Jaccard method, allowed to show by cluster analysis that most farm selections (89.2%) grouped with accessions from germplasm bank considered representatives of the cacao genetic diversity (hybrids, Trinitarian, Scavina, Amazon and common cacao). The other selections were distributed in seven distinct groups. There is high genetic diversity among farm selections, and some of them may have originated from other progenitors not included in this analysis. These materials present potential for clone selection with higher diversity for new crossings or direct use by agriculturists.O objetivo deste trabalho foi avaliar a diversidade genética de acessos de cacau, selecionados previamente como produtivos e resistentes à vassoura-de-bruxa na Bahia, e estudar suas inter-relações com genótipos no banco de germoplasma. Amostras de DNA de folhas dos 120 acessos, coletados em 17 fazendas de sete municípios do Sul da Bahia, foram amplificadas pela técnica de RAPD ("random amplified polymorphic DNA"). Os coeficientes de dissimilaridade genética, calculados pelo método de Jaccard a partir das bandas RAPD, permitiram evidenciar, pela análise de agrupamento, que a maioria das seleções das fazendas (89,2%) agrupou-se com acessos do banco de germoplasma considerados representativos da diversidade de cacau (híbridos, trinitários, Scavinas, amazônicos e cacau-comum). As demais seleções distribuíram-se em outros sete grupos distintos. Há elevada diversidade genética entre as seleções das fazendas, e algumas delas devem ter-se originado de genitores não incluídos nesta análise. Esses materiais apresentam potencial para seleção de clones com maior diversidade para novos cruzamentos ou uso pelos agricultores.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCAPES, CNPq, FAPESB e UESC.Leal, Jeiza BotelhoSantos, Leonardo Moreira dosSantos, Crisliane Aparecida Pereira dosPires, José LuísAhnert, DárioCarrêa, Ronan Xavier2008-10-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/266Pesquisa Agropecuaria Brasileira; v.43, n.7, jul. 2008; 851-858Pesquisa Agropecuária Brasileira; v.43, n.7, jul. 2008; 851-8581678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/266/5465info:eu-repo/semantics/openAccess2014-06-27T17:17:11Zoai:ojs.seer.sct.embrapa.br:article/266Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-06-27T17:17:11Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Genetic diversity among farm and germplasm bank accessions of cacao in Bahia, Brazil
Diversidade genética entre acessos de cacau de fazendas e de banco de germoplasma na Bahia
title Genetic diversity among farm and germplasm bank accessions of cacao in Bahia, Brazil
spellingShingle Genetic diversity among farm and germplasm bank accessions of cacao in Bahia, Brazil
Leal, Jeiza Botelho
Theobroma cacao; molecular markers; breeding; witch broom
Theobroma cacao; marcador molecular; melhoramento genético; vassoura-de-bruxa
title_short Genetic diversity among farm and germplasm bank accessions of cacao in Bahia, Brazil
title_full Genetic diversity among farm and germplasm bank accessions of cacao in Bahia, Brazil
title_fullStr Genetic diversity among farm and germplasm bank accessions of cacao in Bahia, Brazil
title_full_unstemmed Genetic diversity among farm and germplasm bank accessions of cacao in Bahia, Brazil
title_sort Genetic diversity among farm and germplasm bank accessions of cacao in Bahia, Brazil
author Leal, Jeiza Botelho
author_facet Leal, Jeiza Botelho
Santos, Leonardo Moreira dos
Santos, Crisliane Aparecida Pereira dos
Pires, José Luís
Ahnert, Dário
Carrêa, Ronan Xavier
author_role author
author2 Santos, Leonardo Moreira dos
Santos, Crisliane Aparecida Pereira dos
Pires, José Luís
Ahnert, Dário
Carrêa, Ronan Xavier
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv
CAPES, CNPq, FAPESB e UESC.
dc.contributor.author.fl_str_mv Leal, Jeiza Botelho
Santos, Leonardo Moreira dos
Santos, Crisliane Aparecida Pereira dos
Pires, José Luís
Ahnert, Dário
Carrêa, Ronan Xavier
dc.subject.por.fl_str_mv Theobroma cacao; molecular markers; breeding; witch broom
Theobroma cacao; marcador molecular; melhoramento genético; vassoura-de-bruxa
topic Theobroma cacao; molecular markers; breeding; witch broom
Theobroma cacao; marcador molecular; melhoramento genético; vassoura-de-bruxa
description The objective of this work was to assess genetic diversity of farm cacao accessions, previously selected as productive and resistant to witch broom in Bahia, Brazil, and to study their interrelationship with reference genotypes on germplasm bank. DNA samples from 120 cacao accessions, collected on 17 farms in seven counties in Southern Bahia, were amplified by RAPD technique (random amplified polymorphic DNA). The coefficients of genetic dissimilarity, calculated from the RAPD bands by Jaccard method, allowed to show by cluster analysis that most farm selections (89.2%) grouped with accessions from germplasm bank considered representatives of the cacao genetic diversity (hybrids, Trinitarian, Scavina, Amazon and common cacao). The other selections were distributed in seven distinct groups. There is high genetic diversity among farm selections, and some of them may have originated from other progenitors not included in this analysis. These materials present potential for clone selection with higher diversity for new crossings or direct use by agriculturists.
publishDate 2008
dc.date.none.fl_str_mv 2008-10-27
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/266
url https://seer.sct.embrapa.br/index.php/pab/article/view/266
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/266/5465
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.43, n.7, jul. 2008; 851-858
Pesquisa Agropecuária Brasileira; v.43, n.7, jul. 2008; 851-858
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
_version_ 1793416696071979008

Registros relacionados