Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1015836
Unidade da Embrapa/Coleção:: Embrapa Acre - Artigo em periódico indexado (ALICE)
Data do documento: 20-Mai-2015
Tipo do Material: Artigo em periódico indexado (ALICE)
Autoria: SUJII, P. S.
MARTINS, K.
WADT, L. H. de O.
AZEVEDO, V. C. R.
SOLFERINI, V. N.
Informaçães Adicionais: Patricia Sanae Sujii, Unicamp; Karina Martins, Ufscar; LUCIA HELENA DE OLIVEIRA WADT, CPAF-RO; VANIA CRISTINA RENNO AZEVEDO, CENARGEN; Vera Nisaka Solferini, Unicamp.
Título: Genetic structure of Bertholletia excelsa populations from the Amazon at different spatial scales.
Edição: 2015
Fonte/Imprenta: Conservation Genetics, Dordrecht, v. 16, n. 4, p. 955-964, Aug. 2015.
Idioma: en
Notas: Published online: 24 March 2015.
Palavras-chave: Marcador microssatélite
Dinámica poblacional
Repeticiones de microsatélite
Nuez del Brasil
Marcadores genéticos
Madera tropical
Fitomejoramiento
Variación genética.
Conteúdo: Population genetic structure and genetic diversity levels are important issues to understand population dynamics and to guide forest management plans. The Brazil nut tree (Bertholletia excelsa Bonpl.) is an endemic species, widely distributed through Amazonian upland forests and also an important species for the local extractive economy. Our aim was to analyze the genetic structure of Brazil nut trees at both fine and large scales throughout the Amazon Basin, contributing to the knowledge base on this species and to generate information to support plans for its conservation. We genotyped individuals from nine sites distributed in five regions of the Brazilian Amazon using 11 microsatellite loci. We found an excess of heterozygotes in most populations, with significant negative inbreeding coefficients (f) for five of them and the finescale structure, when present, was very small. These results, as a consequence of self-incompatibility, indicate that conservation plans for B. excelsa must include the maintenance of genetic diversity within populations to ensure viable amounts of seeds for both economic purposes and for the local persistence of the species.
Thesagro: Melhoramento genético vegetal
Essência florestal
Castanha do pará
Bertholletia excelsa
Variação genética
Dinâmica populacional
Marcador genético
NAL Thesaurus: Plant breeding
Tropical wood
Brazil nuts
Genetic variation
Population dynamics
Genetic markers
Microsatellite repeats.
Ano de Publicação: 2015
Aparece nas coleções:Artigo em periódico indexado (CPAF-AC)

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