Genetic characterization of cassava ( Manihot esculenta ) landraces in Brazil assessed with simple sequence repeats
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , , |
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=S1415-47572009000100015 |
Resumo: | Based on nine microsatellite loci, the aim of this study was to appraise the genetic diversity of 42 cassava ( Manihot esculenta ) landraces from selected regions in Brazil, and examine how this variety is distributed according to origin in several municipalities in the states of Minas Gerais, São Paulo, Mato Grosso do Sul, Amazonas and Mato Grosso. High diversity values were found among the five above-mentioned regions, with 3.3 alleles per locus on an average, a high percentage of polymorphic loci varying from 88.8% to 100%, an average of 0.265 for observed heterozygosity and 0.570 for gene diversity. Most genetic diversity was concentrated within the regions themselves ( H S = 0.52). Cluster analysis and principal component based scatter plotting showed greater similarity among landraces from São Paulo, Mato Grosso do Sul and Amazonas, whereas those from Minas Gerais were clustered into a sub-group within this group. The plants from Mato Grosso, mostly collected in the municipality of General Carneiro, provided the highest differentiation. The migration of human populations is one among the possible reasons for this closer resemblance or greater disparity among plants from the various regions. |
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Genetics and Molecular Biology |
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Genetic characterization of cassava ( Manihot esculenta ) landraces in Brazil assessed with simple sequence repeats genetic diversitymicrosatellitesSSR markerstraditional farming Based on nine microsatellite loci, the aim of this study was to appraise the genetic diversity of 42 cassava ( Manihot esculenta ) landraces from selected regions in Brazil, and examine how this variety is distributed according to origin in several municipalities in the states of Minas Gerais, São Paulo, Mato Grosso do Sul, Amazonas and Mato Grosso. High diversity values were found among the five above-mentioned regions, with 3.3 alleles per locus on an average, a high percentage of polymorphic loci varying from 88.8% to 100%, an average of 0.265 for observed heterozygosity and 0.570 for gene diversity. Most genetic diversity was concentrated within the regions themselves ( H S = 0.52). Cluster analysis and principal component based scatter plotting showed greater similarity among landraces from São Paulo, Mato Grosso do Sul and Amazonas, whereas those from Minas Gerais were clustered into a sub-group within this group. The plants from Mato Grosso, mostly collected in the municipality of General Carneiro, provided the highest differentiation. The migration of human populations is one among the possible reasons for this closer resemblance or greater disparity among plants from the various regions. Sociedade Brasileira de Genética2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100015Genetics and Molecular Biology v.32 n.1 2009reponame:Genetics and Molecular Biologyinstname:Sociedade Brasileira de Genética (SBG)instacron:SBG10.1590/S1415-47572009005000010info:eu-repo/semantics/openAccessSiqueira,Marcos V. B. M.Queiroz-Silva,Jurema R.Bressan,Eduardo A.Borges,AlinePereira,Kayo J. C.Pinto,José G.Veasey,Elizabeth Anneng2009-01-17T00:00:00Zoai:scielo:S1415-47572009000100015Revistahttp://www.gmb.org.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||editor@gmb.org.br1678-46851415-4757opendoar:2009-01-17T00:00Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)false |
dc.title.none.fl_str_mv |
Genetic characterization of cassava ( Manihot esculenta ) landraces in Brazil assessed with simple sequence repeats |
title |
Genetic characterization of cassava ( Manihot esculenta ) landraces in Brazil assessed with simple sequence repeats |
spellingShingle |
Genetic characterization of cassava ( Manihot esculenta ) landraces in Brazil assessed with simple sequence repeats Siqueira,Marcos V. B. M. genetic diversity microsatellites SSR markers traditional farming |
title_short |
Genetic characterization of cassava ( Manihot esculenta ) landraces in Brazil assessed with simple sequence repeats |
title_full |
Genetic characterization of cassava ( Manihot esculenta ) landraces in Brazil assessed with simple sequence repeats |
title_fullStr |
Genetic characterization of cassava ( Manihot esculenta ) landraces in Brazil assessed with simple sequence repeats |
title_full_unstemmed |
Genetic characterization of cassava ( Manihot esculenta ) landraces in Brazil assessed with simple sequence repeats |
title_sort |
Genetic characterization of cassava ( Manihot esculenta ) landraces in Brazil assessed with simple sequence repeats |
author |
Siqueira,Marcos V. B. M. |
author_facet |
Siqueira,Marcos V. B. M. Queiroz-Silva,Jurema R. Bressan,Eduardo A. Borges,Aline Pereira,Kayo J. C. Pinto,José G. Veasey,Elizabeth Ann |
author_role |
author |
author2 |
Queiroz-Silva,Jurema R. Bressan,Eduardo A. Borges,Aline Pereira,Kayo J. C. Pinto,José G. Veasey,Elizabeth Ann |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Siqueira,Marcos V. B. M. Queiroz-Silva,Jurema R. Bressan,Eduardo A. Borges,Aline Pereira,Kayo J. C. Pinto,José G. Veasey,Elizabeth Ann |
dc.subject.por.fl_str_mv |
genetic diversity microsatellites SSR markers traditional farming |
topic |
genetic diversity microsatellites SSR markers traditional farming |
description |
Based on nine microsatellite loci, the aim of this study was to appraise the genetic diversity of 42 cassava ( Manihot esculenta ) landraces from selected regions in Brazil, and examine how this variety is distributed according to origin in several municipalities in the states of Minas Gerais, São Paulo, Mato Grosso do Sul, Amazonas and Mato Grosso. High diversity values were found among the five above-mentioned regions, with 3.3 alleles per locus on an average, a high percentage of polymorphic loci varying from 88.8% to 100%, an average of 0.265 for observed heterozygosity and 0.570 for gene diversity. Most genetic diversity was concentrated within the regions themselves ( H S = 0.52). Cluster analysis and principal component based scatter plotting showed greater similarity among landraces from São Paulo, Mato Grosso do Sul and Amazonas, whereas those from Minas Gerais were clustered into a sub-group within this group. The plants from Mato Grosso, mostly collected in the municipality of General Carneiro, provided the highest differentiation. The migration of human populations is one among the possible reasons for this closer resemblance or greater disparity among plants from the various regions. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100015 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100015 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1415-47572009005000010 |
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.32 n.1 2009 reponame:Genetics and Molecular Biology instname:Sociedade Brasileira de Genética (SBG) instacron:SBG |
instname_str |
Sociedade Brasileira de Genética (SBG) |
instacron_str |
SBG |
institution |
SBG |
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 |
_version_ |
1752122382006353920 |