Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/963983
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dc.contributor.authorMEZETTE, T. F.pt_BR
dc.contributor.authorBLUMER, C. G.pt_BR
dc.contributor.authorVEASEY, E. A.pt_BR
dc.date.accessioned2013-08-13T11:11:11Zpt_BR
dc.date.available2013-08-13T11:11:11Zpt_BR
dc.date.created2013-08-13pt_BR
dc.date.issued2013pt_BR
dc.identifier.citationPesquisa Agropecuária Brasileira, Brasília, DF, v. 48, n. 5, p. 510-518, maio 2013.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/963983pt_BR
dc.descriptionThe objective of this work was to characterize morphologically and molecularly the genetic diversity of cassava accessions, collected from different regions in Brazil. A descriptive analysis was made for 12 morphological traits in 419 accessions. Data was transformed into binary data for cluster analysis and analysis of molecular variance. A higher proportion of white or cream (71%) root cortex color was found, while flesh colors were predominantly white (49%) and cream (42%). Four accession groups were classified by the cluster analysis, but they were not grouped according to their origin, which indicates that diversity is not structured in space. The variation was greater within regions (95.6%). Sixty genotypes were also evaluated using 14 polymorphic microsatellite markers. Molecular results corroborated the morphological ones, showing the same random distribution of genotypes, with no grouping according to origin. Diversity indices were high for each region, and a greater diversity was found within regions, with: a mean number of alleles per locus of 3.530; observed and expected heterozygosity of 0.499 and 0.642, respectively; and Shannon index of 1.03. The absence of spatial structure among cassava genotypes according to their origins shows the anthropic influence in the distribution and movement of germplasm, both within and among regions.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectDiversidade genéticapt_BR
dc.subjectMicrossatélitept_BR
dc.subjectMorphological traitspt_BR
dc.subjectGenetic diversitypt_BR
dc.subjectMicrosatellitespt_BR
dc.titleMorphological and molecular diversity among cassava genotypes.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2017-06-16T11:11:11Zpt_BR
dc.subject.thesagroGermoplasmapt_BR
dc.subject.thesagroManihot Esculentapt_BR
dc.subject.nalthesaurusGermplasmpt_BR
dc.subject.nalthesaurusGenetic variationpt_BR
dc.description.notesTítulo em português: Diversidade morfológica e molecular entre genótipos de mandioca.pt_BR
riaa.ainfo.id963983pt_BR
riaa.ainfo.lastupdate2017-06-16pt_BR
dc.contributor.institutionThiago Fonseca Mezette, Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Departamento de Genética; Caroline Groppo Blumer, Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Departamento de Genética; Elizabeth Ann Veasey, Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Departamento de Genética.pt_BR
Aparece nas coleções:Artigo em periódico indexado / Embrapa Unidades Centrais (AI-SEDE)

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