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| 2. |  | NASCIMENTO, L. DE S.; NASCIMENTO, R. J. M.; MATA, A. K. A. DA; FELIPE, V. T. A.; ARAÚJO, R. F.; BEZERRA, L. C. A.; ALMEIDA, J. S.; MATTOS, A. L. A.; UCHOA, D. E. A.; NOVAIS, L. M. R. DE; MONTES D’OCA, C. DA R.; AVELINO, F. Development of a phosphorous-based biorefinery process for producing lignocellulosic functional materials from coconut wastes. International Journal of Biological Macromolecules, 239, 124300, 2023.| Biblioteca(s): Embrapa Agroindústria Tropical. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
17/04/1997 |
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Data da última atualização: |
17/04/1997 |
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Autoria: |
MILES, J. W.; VALLE, C. B. do. |
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Título: |
Manipulation of apomixis in Brachiaria breeding. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
In: MILES, J.W.; MAASS, B.L.; VALLE, C.B. do, ed. Brachiaria: biology, agronomy and improvement. Cali: CIAT / Brasilia: EMBRAPA-CNPGC, 1996. |
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Páginas: |
p.164-177. |
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Série: |
(CIAT.Publication, 259). |
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ISBN: |
958-9439-57-8 |
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Idioma: |
Inglês |
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Notas: |
CNPGC. |
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Conteúdo: |
Until 10 years ago, genetic improvement of Brachiaria species depended entirely on selection among naturally existing genotypes, genetic recombination being impossible because of prevailing apomictic reproduction. However, recent advances in understanding the genetics and cytogenetics of Brachiaria, and the creating of a tetraploid sexual B. ruziziensis have opened the way for controlled genetic manipulation. Two relevant gene pools are discussed. Genetic recombination is now possible in the B. ruziziensis/B.brizantha/B.decumbens pool. Breeding in the B.humidicola/B. dictyoneura/B.jubata pool awaits the development of a compatible source of sexuality. Present breeding initiatives aim to create apomictic genotypes combining spittlebug resistance and edaphicadaptation with other desirable attributes. Evaluation methods need to be improved. Current breeding schemes for Brachiaria, wich are described, seek to exploit apomixis. They are empirical, and are based on general principles of quantitative genetics and our current limited knowledge of the inheritance of reproductive mode and other important traits. Clearer definition of relevant breeding objective and better evaluation methodology will improve the efficiency and effectiveness of Brachiaria breeding. |
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Palavras-Chave: |
Melhoramento genetico; Pasture. |
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Thesagro: |
Apomixia; Brachiaria; Pastagem. |
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Thesaurus NAL: |
Apomixis; breeding; Cytogenetics; Genetic recombination; Plant breeding. |
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Categoria do assunto: |
--
G Melhoramento Genético |
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Marc: |
LEADER 02125naa a2200301 a 4500
001 1319563
005 1997-04-17
008 1996 bl uuuu u00u1 u #d
020 $a958-9439-57-8
100 1 $aMILES, J. W.
245 $aManipulation of apomixis in Brachiaria breeding.
260 $c1996
300 $ap.164-177.
490 $a(CIAT.Publication, 259).
500 $aCNPGC.
520 $aUntil 10 years ago, genetic improvement of Brachiaria species depended entirely on selection among naturally existing genotypes, genetic recombination being impossible because of prevailing apomictic reproduction. However, recent advances in understanding the genetics and cytogenetics of Brachiaria, and the creating of a tetraploid sexual B. ruziziensis have opened the way for controlled genetic manipulation. Two relevant gene pools are discussed. Genetic recombination is now possible in the B. ruziziensis/B.brizantha/B.decumbens pool. Breeding in the B.humidicola/B. dictyoneura/B.jubata pool awaits the development of a compatible source of sexuality. Present breeding initiatives aim to create apomictic genotypes combining spittlebug resistance and edaphicadaptation with other desirable attributes. Evaluation methods need to be improved. Current breeding schemes for Brachiaria, wich are described, seek to exploit apomixis. They are empirical, and are based on general principles of quantitative genetics and our current limited knowledge of the inheritance of reproductive mode and other important traits. Clearer definition of relevant breeding objective and better evaluation methodology will improve the efficiency and effectiveness of Brachiaria breeding.
650 $aApomixis
650 $abreeding
650 $aCytogenetics
650 $aGenetic recombination
650 $aPlant breeding
650 $aApomixia
650 $aBrachiaria
650 $aPastagem
653 $aMelhoramento genetico
653 $aPasture
700 1 $aVALLE, C. B. do
773 $tIn: MILES, J.W.; MAASS, B.L.; VALLE, C.B. do, ed. Brachiaria: biology, agronomy and improvement. Cali: CIAT / Brasilia: EMBRAPA-CNPGC, 1996.
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