| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
In situ and genetic characterization of Gossypium barbadense populations from the states of Pará and Amapá, Brazil
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| Autores: |
Almeida,Vanessa Cavalcante de
Hoffmann,Lúcia Vieira
Yokomizo,Gilberto Ken It
Costa,Joaquim Nunes da
Giband,Marc
Barroso,Paulo Augusto Vianna
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| Data: |
2009-07-01
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| Ano: |
2009
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| Palavras-chave: |
Cotton
Genetic diversity
Germplasm
SSR markers
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| Resumo: |
The objective of this work was to characterize the populations of Gossypium barbadense in the states of Amapá and Pará, Brazil. In situ characterization was conducted through interviews with the owners of the plants and environmental observations. Leaf or petal tissue as well as seed samples were collected for genetic characterization by single sequence repeats markers and for storage in germplasm banks, respectively. The plants were maintained in dooryards and used mainly for medical purposes. The genetic analysis showed no heterozygous plants at the loci tested (f = 1), indicating that reproduction occurs mainly through selfing. The total genetic diversity was high (He = 0.39); and a high level of differentiation was observed between cotton plants from the two states (F ST = 0.36). Conventional methods of in situ maintenance of G. barbadense populations are not applicable. The conservation of the genetic variability of populations present in the two states could be achieved through germplasm collection and establishing of ex situ seed banks.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000700011
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/S0100-204X2009000700011
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.44 n.7 2009
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| Direitos: |
info:eu-repo/semantics/openAccess
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