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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
06/04/1994 |
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Data da última atualização: |
06/04/1994 |
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Autoria: |
FAURE, S.; BAKRY, F.; GONZALEZ DE LEON, D. |
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Título: |
Cytogenetic studies of diploid bananas. |
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Ano de publicação: |
1992 |
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Fonte/Imprenta: |
Montpellier, France: CIRAD-FLHOR, 1992. |
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Páginas: |
p.77-92. |
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ISBN: |
2-87614-108-6 |
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Idioma: |
Inglês |
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Notas: |
GANRY, J. Breeding banana and plantain for resistance to disease and pests. Montepellier France: CIRAD-FLOR, 1992. Proceedings of the International Symposium on Genetic Improvement of banana for Resistance... |
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Conteúdo: |
Several authors have described the structural abnormalities in chromosomes of diploid banana cultivars. The parthenocarpic clones are often heterozygous for one or several traslocations or inversions. These structural rearrajements affect clone fertility. Knowledge of the diploid cytogenetic estructure is therefore essential for a breeding programme. Observations on 3 wild Musa acuminata individuals and 10 parthenocarpic diploid cultivars are reported. They aim to determine the nature of structural rearrangement (translocation or inversion) and level of structural heterozygosity in the diploid parents used in the CIRAD-IRFA banana breeding programme. All diploid cultivars showed a certain degree of structural heterozygosity but is was not strictly related to fertility. Sterility in diploid clones does not necessarily result from structural heterozygosity and can also be induced by genes. |
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Palavras-Chave: |
congresso. |
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Thesagro: |
Melhoramento; Musa sp. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01600nam a2200205 a 4500
001 1641034
005 1994-04-06
008 1992 bl uuuu 00u1 u #d
020 $a2-87614-108-6
100 1 $aFAURE, S.
245 $aCytogenetic studies of diploid bananas.
260 $aMontpellier, France: CIRAD-FLHOR$c1992
300 $ap.77-92.
500 $aGANRY, J. Breeding banana and plantain for resistance to disease and pests. Montepellier France: CIRAD-FLOR, 1992. Proceedings of the International Symposium on Genetic Improvement of banana for Resistance...
520 $aSeveral authors have described the structural abnormalities in chromosomes of diploid banana cultivars. The parthenocarpic clones are often heterozygous for one or several traslocations or inversions. These structural rearrajements affect clone fertility. Knowledge of the diploid cytogenetic estructure is therefore essential for a breeding programme. Observations on 3 wild Musa acuminata individuals and 10 parthenocarpic diploid cultivars are reported. They aim to determine the nature of structural rearrangement (translocation or inversion) and level of structural heterozygosity in the diploid parents used in the CIRAD-IRFA banana breeding programme. All diploid cultivars showed a certain degree of structural heterozygosity but is was not strictly related to fertility. Sterility in diploid clones does not necessarily result from structural heterozygosity and can also be induced by genes.
650 $aMelhoramento
650 $aMusa sp
653 $acongresso
700 1 $aBAKRY, F.
700 1 $aGONZALEZ DE LEON, D.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
