Genetic diversity characterization of cassava cultivars (Manihot esculenta Crantz).: I) RAPD markers

Detalhes bibliográficos
Autor(a) principal: Colombo,Carlos
Data de Publicação: 1998
Outros Autores: Second,Gérard, Valle,Tereza Losada, Charrier,André
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Genetics and Molecular Biology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000100018
Resumo: RAPD markers were used to investigate the genetic diversity of 31 Brazilian cassava clones. The results were compared with the genetic diversity revealed by botanical descriptors. Both sets of variates revealed identical relationships among the cultivars. Multivariate analysis of genetic similarities placed genotypes destinated for consumption "in nature" in one group, and cultivars useful for flour production in another. Brazil’s abundance of landraces presents a broad dispersion and is consequently an important resource of genetic variability. The botanical descriptors were not able to differentiate thirteen pairs of cultivars compared two-by-two, while only one was not differentiated by RAPD markers. These results showed the power of RAPD markers over botanical descriptors in studying genetic diversity, identifying duplicates, as well as validating, or improving a core collection. The latter is particularly important in this vegetatively propagated crop.
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spelling Genetic diversity characterization of cassava cultivars (Manihot esculenta Crantz).: I) RAPD markersRAPD markers were used to investigate the genetic diversity of 31 Brazilian cassava clones. The results were compared with the genetic diversity revealed by botanical descriptors. Both sets of variates revealed identical relationships among the cultivars. Multivariate analysis of genetic similarities placed genotypes destinated for consumption "in nature" in one group, and cultivars useful for flour production in another. Brazil’s abundance of landraces presents a broad dispersion and is consequently an important resource of genetic variability. The botanical descriptors were not able to differentiate thirteen pairs of cultivars compared two-by-two, while only one was not differentiated by RAPD markers. These results showed the power of RAPD markers over botanical descriptors in studying genetic diversity, identifying duplicates, as well as validating, or improving a core collection. The latter is particularly important in this vegetatively propagated crop.Sociedade Brasileira de Genética1998-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000100018Genetics and Molecular Biology v.21 n.1 1998reponame:Genetics and Molecular Biologyinstname:Sociedade Brasileira de Genética (SBG)instacron:SBG10.1590/S1415-47571998000100018info:eu-repo/semantics/openAccessColombo,CarlosSecond,GérardValle,Tereza LosadaCharrier,Andréeng1999-01-06T00:00:00Zoai:scielo:S1415-47571998000100018Revistahttp://www.gmb.org.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||editor@gmb.org.br1678-46851415-4757opendoar:1999-01-06T00:00Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)false
dc.title.none.fl_str_mv Genetic diversity characterization of cassava cultivars (Manihot esculenta Crantz).: I) RAPD markers
title Genetic diversity characterization of cassava cultivars (Manihot esculenta Crantz).: I) RAPD markers
spellingShingle Genetic diversity characterization of cassava cultivars (Manihot esculenta Crantz).: I) RAPD markers
Colombo,Carlos
title_short Genetic diversity characterization of cassava cultivars (Manihot esculenta Crantz).: I) RAPD markers
title_full Genetic diversity characterization of cassava cultivars (Manihot esculenta Crantz).: I) RAPD markers
title_fullStr Genetic diversity characterization of cassava cultivars (Manihot esculenta Crantz).: I) RAPD markers
title_full_unstemmed Genetic diversity characterization of cassava cultivars (Manihot esculenta Crantz).: I) RAPD markers
title_sort Genetic diversity characterization of cassava cultivars (Manihot esculenta Crantz).: I) RAPD markers
author Colombo,Carlos
author_facet Colombo,Carlos
Second,Gérard
Valle,Tereza Losada
Charrier,André
author_role author
author2 Second,Gérard
Valle,Tereza Losada
Charrier,André
author2_role author
author
author
dc.contributor.author.fl_str_mv Colombo,Carlos
Second,Gérard
Valle,Tereza Losada
Charrier,André
description RAPD markers were used to investigate the genetic diversity of 31 Brazilian cassava clones. The results were compared with the genetic diversity revealed by botanical descriptors. Both sets of variates revealed identical relationships among the cultivars. Multivariate analysis of genetic similarities placed genotypes destinated for consumption "in nature" in one group, and cultivars useful for flour production in another. Brazil’s abundance of landraces presents a broad dispersion and is consequently an important resource of genetic variability. The botanical descriptors were not able to differentiate thirteen pairs of cultivars compared two-by-two, while only one was not differentiated by RAPD markers. These results showed the power of RAPD markers over botanical descriptors in studying genetic diversity, identifying duplicates, as well as validating, or improving a core collection. The latter is particularly important in this vegetatively propagated crop.
publishDate 1998
dc.date.none.fl_str_mv 1998-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000100018
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000100018
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1415-47571998000100018
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Genética
publisher.none.fl_str_mv Sociedade Brasileira de Genética
dc.source.none.fl_str_mv Genetics and Molecular Biology v.21 n.1 1998
reponame:Genetics and Molecular Biology
instname:Sociedade Brasileira de Genética (SBG)
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instname_str Sociedade Brasileira de Genética (SBG)
instacron_str SBG
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reponame_str Genetics and Molecular Biology
collection Genetics and Molecular Biology
repository.name.fl_str_mv Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)
repository.mail.fl_str_mv ||editor@gmb.org.br
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