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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
27/12/2019 |
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Data da última atualização: |
13/01/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FIGUEIREDO, U. J. de; BARRIOS, S. C. L.; VALLE, C. B. do; NUNES, J. A. R. |
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Afiliação: |
Ulisses José de Figueiredo, Universidade Federal de Lavras - UFLA/Departamento de Biologia; SANZIO CARVALHO LIMA BARRIOS, CNPGC; Cacilda Borges do Valle, Colaboradora da Embrapa Gado de Corte; José Airton Rodrigues Nunes, Universidade Federal de Lavras - UFLA/Departamento de Biologia. |
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Título: |
Combining ability among apomictic and sexual parents of Urochloa humidicola. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Grass and Forage Science, v. 74, v. 4, p. 678-686, 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
The diallel cross constitutes an informative genetic design for choosing genitors and crosses in breeding programmes since it provides estimates of general (GCA) and specific (SCA) combining abilities. Because the breeding programme for Urochloa humidicola ([Rendle] Morrone & Zuloaga; syn. Brachiaria humidicola [Rendle] Schweick) at Embrapa Beef Cattle is recent, these estimates are still unknown. Thus, the aim of this study was to obtain the estimates of GCA and SCA from the partial diallel cross design between sexual and apomictic parents. The crosses involved nine sexual and ten apomictic parents. Seventy‐one full‐sib progenies were obtained and evaluated in an incomplete block design, using all parents and the cv. BRS Tupi as a check. The agronomic and forage quality traits were evaluated using seven harvests. Statistical analysis was performed using the mixed model approach. Significant variations were associated with GCA among sexual parents for biomass yield and forage quality traits. However, this cannot be observed for apomictic parents for GCA. The SCA effect was not significant for the assessed traits. These results showed the predominance of additive effects. Sexual parents SEX3 and SEX4 presented the highest potential for contributing favourable alleles in hybrid combinations. The absence of GCA among apomictic parents and SCA suggests the need to increase genetic variability for the generation of breeding populations of U. humidicola. |
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Palavras-Chave: |
BLUP; Partial diallel. |
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Thesagro: |
Brachiaria Humidicola. |
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Thesaurus Nal: |
Apomixis; Hybrids. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/207891/1/Combining-ability-among-apomictic-and-sexual.pdf
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Marc: |
LEADER 02108naa a2200217 a 4500
001 2117791
005 2020-01-13
008 2019 bl uuuu u00u1 u #d
100 1 $aFIGUEIREDO, U. J. de
245 $aCombining ability among apomictic and sexual parents of Urochloa humidicola.$h[electronic resource]
260 $c2019
520 $aThe diallel cross constitutes an informative genetic design for choosing genitors and crosses in breeding programmes since it provides estimates of general (GCA) and specific (SCA) combining abilities. Because the breeding programme for Urochloa humidicola ([Rendle] Morrone & Zuloaga; syn. Brachiaria humidicola [Rendle] Schweick) at Embrapa Beef Cattle is recent, these estimates are still unknown. Thus, the aim of this study was to obtain the estimates of GCA and SCA from the partial diallel cross design between sexual and apomictic parents. The crosses involved nine sexual and ten apomictic parents. Seventy‐one full‐sib progenies were obtained and evaluated in an incomplete block design, using all parents and the cv. BRS Tupi as a check. The agronomic and forage quality traits were evaluated using seven harvests. Statistical analysis was performed using the mixed model approach. Significant variations were associated with GCA among sexual parents for biomass yield and forage quality traits. However, this cannot be observed for apomictic parents for GCA. The SCA effect was not significant for the assessed traits. These results showed the predominance of additive effects. Sexual parents SEX3 and SEX4 presented the highest potential for contributing favourable alleles in hybrid combinations. The absence of GCA among apomictic parents and SCA suggests the need to increase genetic variability for the generation of breeding populations of U. humidicola.
650 $aApomixis
650 $aHybrids
650 $aBrachiaria Humidicola
653 $aBLUP
653 $aPartial diallel
700 1 $aBARRIOS, S. C. L.
700 1 $aVALLE, C. B. do
700 1 $aNUNES, J. A. R.
773 $tGrass and Forage Science$gv. 74, v. 4, p. 678-686, 2019.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
23/03/2009 |
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Data da última atualização: |
23/03/2009 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CERVINI, M.; MACHADO, M. A.; VERNEQUE, R. S.; TEODORO, R. L.; CAMPOS, A. L.; REGITANO, L. C. A. |
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Afiliação: |
Marco Antonio Machado, Embrapa Gado de Leite; Rui da Silva Verneque, Embrapa Gado de Leite; Roberto Luiz Teodoro, Embrapa Gado de Leite; Ana Lúcia Campos, Embrapa Gado de Leite. |
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Título: |
Varredura dos cromossomos 24 e 29 em uma população F2 de bovinos (Gir x Holandês) no mapeamento de QTL para resistência a parasitas e características de crescimento. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE GENÉTICA. 54. 2008, Anais. Salvador. SBG, 2008. |
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Páginas: |
1 p. |
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Idioma: |
Português |
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Notas: |
1 CD. |
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Palavras-Chave: |
Mapeamento; QTL. |
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Thesagro: |
Bovino; Carrapato; Melhoramento. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00778naa a2200253 a 4500
001 1596384
005 2009-03-23
008 2008 bl --- 0-- u #d
100 1 $aCERVINI, M.
245 $aVarredura dos cromossomos 24 e 29 em uma população F2 de bovinos (Gir x Holandês) no mapeamento de QTL para resistência a parasitas e características de crescimento.
260 $c2008
300 $a1 p.
500 $a1 CD.
650 $aBovino
650 $aCarrapato
650 $aMelhoramento
653 $aMapeamento
653 $aQTL
700 1 $aMACHADO, M. A.
700 1 $aVERNEQUE, R. S.
700 1 $aTEODORO, R. L.
700 1 $aCAMPOS, A. L.
700 1 $aREGITANO, L. C. A.
773 $tIn: CONGRESSO BRASILEIRO DE GENÉTICA. 54. 2008, Anais. Salvador. SBG, 2008.
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Embrapa Gado de Leite (CNPGL) |
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