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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
19/08/2005 |
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Data da última atualização: |
06/10/2005 |
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Autoria: |
MURO-ABAD, J. I.; ROCHA, R. B.; CRUZ, C. D.; PIRES, I. E.; ARAÚJO, E. F. de. |
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Título: |
Crosses recommendation method for obtaining Eucalyptus spp. hybrids assisted by molecular markers. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 5, n. 1, p. 71-79, Mar. 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
The genetic and morphological diversity among parents selected in progeny tests of Eucalyptus grandis and E. urophylla was used as a criterion to choose the best crosses for a circulant partial diallel design. In a first stage, 127 parents were selected from 503 clone trees (70 E. urophylla and 57 E. grandis trees) considering two traits: the Mean Genetic Distance (MGD) values obtained by RAPD markers and Annual Mean Increment (AMI) values. In a second stage, these parents were analysed with other RAPD markers and grouped by the Tocher method. These groups were used to prepare a diallel set, involving the two most divergent groups of parents of the species. Other silvicultural data were used to calculate the average Euclidean distances, which also emphasizes the great variability existing among and within populations. Correlations between the genetic distances obtained by RAPD markers and the average Euclidean distances were negative or very low.
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Palavras-Chave: |
Diversidade genética; Forest rice improvement; Genetic diversity; Marcadores RAPD; Melhoramento florestal; RAPD markers; Selection. |
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Thesagro: |
Eucalipto; Seleção. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01781naa a2200277 a 4500
001 1213584
005 2005-10-06
008 2005 bl uuuu u00u1 u #d
100 1 $aMURO-ABAD, J. I.
245 $aCrosses recommendation method for obtaining Eucalyptus spp. hybrids assisted by molecular markers.
260 $c2005
520 $aThe genetic and morphological diversity among parents selected in progeny tests of Eucalyptus grandis and E. urophylla was used as a criterion to choose the best crosses for a circulant partial diallel design. In a first stage, 127 parents were selected from 503 clone trees (70 E. urophylla and 57 E. grandis trees) considering two traits: the Mean Genetic Distance (MGD) values obtained by RAPD markers and Annual Mean Increment (AMI) values. In a second stage, these parents were analysed with other RAPD markers and grouped by the Tocher method. These groups were used to prepare a diallel set, involving the two most divergent groups of parents of the species. Other silvicultural data were used to calculate the average Euclidean distances, which also emphasizes the great variability existing among and within populations. Correlations between the genetic distances obtained by RAPD markers and the average Euclidean distances were negative or very low.
650 $aEucalipto
650 $aSeleção
653 $aDiversidade genética
653 $aForest rice improvement
653 $aGenetic diversity
653 $aMarcadores RAPD
653 $aMelhoramento florestal
653 $aRAPD markers
653 $aSelection
700 1 $aROCHA, R. B.
700 1 $aCRUZ, C. D.
700 1 $aPIRES, I. E.
700 1 $aARAÚJO, E. F. de
773 $tCrop Breeding and Applied Biotechnology, Viçosa, MG$gv. 5, n. 1, p. 71-79, Mar. 2005.
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Embrapa Arroz e Feijão (CNPAF) |
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