Data/hora: 03/06/2024 02:18:55

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 11/09/2002
Data da última atualização: | 13/11/2018
Autoria: | SILVA, E. B. da; AMBLARD, P.; BERTHAUD, J.; SEGUIN, M.
Afiliação: | EDSON BARCELOS DA SILVA, CPAA; Philippe Amblard, Centre de Coopération Internationale en Recherche Agronomique pour le Développement; Julien Berthaud, Institut de Recherche pour le Développement; Marc Seguin, Centre de Coopération Internationale en Recherche Agronomique pour le Développement.
Título: | Genetic diversity and relationship in American and African oil palm as revealed by RFLP and AFLP molecular markers.
Ano de publicação: | 2002
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 37, n. 8, p. 1105-1114, ago. 2002
Idioma: | Inglês
Notas: | Título em português: Diversidade e relação genética entre o dendê americano e o africano revelada por marcadores moleculares do tipo RFLP e AFLP.
Conteúdo: | The objective of this work was to evaluate the genetic diversity, its organization and the genetic relationships within oil palm (Elaeis oleifera (Kunth) Cortés, from America, and E. guineensis (Jacq.), from Africa) germplasm using Restriction Fragment Length Polymorphism (RFLP) and Amplified Fragment Length Polymorphism (AFLP). In complement to a previous RFLP study on 241 E. oleifera accessions, 38 E. guineensis accessions were analyzed using the same 37 cDNA probes. These accessions covered a large part of the geographical distribution areas of these species in America and Africa. In addition, AFLP analysis was performed on a sub-set of 40 accessions of E. oleifera and 22 of E. guineensis using three pairs of enzyme/primer combinations. Data were subjected to Factorial Analysis of Correspondence (FAC) and cluster analysis, with parameters of genetic diversity being also studied. Results appeared congruent between RFLP and AFLP. In the E. oleifera, AFLP confirmed the strong structure of genetic diversity revealed by RFLP, according to geographical origin of the studied material, with the identification of the same four distinct genetic groups: Brazil, French Guyana/Surinam, Peru, north of Colombia/Central America. Both markers revealed that genetic divergence between the two species is of the same magnitude as that among provenances of E. oleifera. This finding is in discrepancy with the supposed early tertiary separation of the two species.
Palavras-Chave: | caracterização molecular; genética de população; molecular chacterization; palm species; palmeiras; recursos genéticos.
Thesagro: | Elaeis Guineensis; Elaeis Oleifera.
Thesaurus Nal: | genetic resources; population genetics.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/23443/1/pab20406.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (23443-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS