| Registro completo |
| Provedor de dados: |
Genet. Mol. Biol.
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| País: |
Brazil
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| Título: |
The use of self-incompatibility in the production of hybrid eucalyptus seed by `Aracruz Celulose' in Brazil
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| Autores: |
Junghans,Tatiana Góes
Peters-Robinson,Ingrid
Bertolucci,Fernando L.
Alfenas,Acelino Couto
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| Data: |
1998-09-01
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| Ano: |
1998
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| Resumo: |
Self-incompatibility found in a Eucalyptus grandis clone was used to promote interspecific hybridization between E. grandis and E. urophylla clones. The interspecific hybridization achieved in an open-pollinated commercial seed orchard planted in Espírito Santo, Brazil was evaluated by the multi-locus outcrossing rate (tm) of the seed producing clone, E. grandis. The percentage of outcrossed seeds reached 95.9%. The outcrossing rate of individual trees was quite variable, but was always above 70.0%. Wright's coefficient was negative (F = -0.30) revealing an excess of heterozygous genotypes in the progeny. Genetic parameters confirmed the high degree of hybridization expected in this orchard. The 800-m wide protection belt of native tropical forest that surrounds this orchard has significantly reduced pollen contamination, in comparison to a 400-m wide belt used in another local seed orchard.
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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=S1415-47571998000300015
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| Editor: |
Sociedade Brasileira de Genética
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| Relação: |
10.1590/S1415-47571998000300015
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| Formato: |
text/html
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| Fonte: |
Genetics and Molecular Biology v.21 n.3 1998
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| Direitos: |
info:eu-repo/semantics/openAccess
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