Data/hora: 05/06/2024 09:54:44

Biblioteca(s): | Embrapa Acre; Embrapa Recursos Genéticos e Biotecnologia.
Data corrente: | 15/10/2013
Data da última atualização: | 09/03/2023
Autoria: | SUJII, P. S.; FERNANDES, E. T. M. B.; AZEVEDO, V. C. R.; CIAMPI, A, Y.; MARTINS, K.; WADT, L. H. de O.
Afiliação: | UNICAMP; SEAPROF - ACRE; VANIA CRISTINA RENNO AZEVEDO, CENARGEN; ANA YAMAGUISHI CIAMPI, CENARGEN; Universidade Federal de São Carlos; LUCIA HELENA DE OLIVEIRA WADT, CPAF-AC.
Título: | Morphological and molecular characteristics do not confirm popular classification of the Brazil nut tree in Acre, Brazil.
Ano de publicação: | 2013
Fonte/Imprenta: | Genetics and Molecular Research, v. 12, 3, p. 4018-4027, 2013.
Idioma: | Inglês
Conteúdo: | In the State of Acre, the Brazil nut tree, Bertholletia excelsa (Lecythidaceae), is classified by the local population into two types according to morphological characteristics, including color and quality of wood, shape of the trunk and crown, and fruit production. We examined thereliability of this classification by comparing morphological and molecular data of four populations of Brazil nut trees from Vale do Rio Acre in the Brazilian Amazon. For the morphological analysis, we evaluated qualitative and quantitative information of the trees, fruits, and seeds. The molecular analysis was performed using RAPD and ISSR markers, with cluster analysis. Significant differences were found between the two types of Brazil nut trees for the characters diameter at breast height, fruit yield, fruit size,and number of seeds per fruit. Despite the significant correlation between the morphological characteristics and the popular classification, we observed all possible combinations of morphological characteristics in both types of Brazil nut trees. In some individuals, the classification did not correspond to any of the characteristics. The results obtained with molecular markers showed that the two locally classified types of Brazil nut trees did not differ genetically, indicating that there is no consistent separation between them.
Palavras-Chave: | Acre; Amazonia Occidental; Amazônia Ocidental; Castanheira; Classificação morfológica; Epitaciolândia (AC); Fazenda Nova Jerusalém; Fitomejoramiento; Madera tropical; Marcador ISSR; Marcador RAPD; Marcadores genéticos; Marcadores moleculares; Nuez del Brasil; Plácido de Castro (AC); RESEX Chico Mendes; Senador Guiomard (AC); Seringal Filipinas; Seringal Petrolina; Western Amazon.
Thesagro: | Bertholletia excelsa; Castanha do pará; Essência florestal; Marcador genético; Melhoramento genético vegetal; Morfologia vegetal.
Thesaurus Nal: | Brazil nuts; Genetic markers; Plant breeding; Tropical wood.

Categoria do assunto:

F Plantas e Produtos de Origem Vegetal
G Melhoramento Genético

URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/179918/1/gmr2791.pdf
Registro original: | Embrapa Recursos Genéticos e Biotecnologia (CENARGEN)

Exemplares:

CPAF-AC - (24723-1) - UPC - AP - DD -  -  -  - DIS
CENARGEN - (34826-1) - UPC - AP - DD - SP 20492 -  - SP 20492 - DIS