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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
23/01/2013 |
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Data da última atualização: |
15/02/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MARTUSCELLO, J. A.; BRAZ, T. G. dos S.; JANK, L.; CUNHA, D. de N. F. V. da; FONSECA, D. M. |
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Afiliação: |
JANAINA AZEVEDO MARTUSCELLO, Departamento de Zootecnia da Universidade Federal de São João Del-Rei.; THIAGO GOMES DOS SANTOS BRAZ, Programa de Pós-graduação em Zootecnia da Universidade Federal de Viçosa; LIANA JANK, CNPGC; DANIEL DE NORONHA FIGUEIREDO VIEIRA DA CUNHA, Departamento de Zootecnia da Universidade Federal de São João Del-Rei.; DILERMANDO MIRANDA DA FONSECA, Departamento de Zootecnia da Universidade Federal de Viçosa. |
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Título: |
Genetic diversity based on morphological data in Panicum maximum hybrids. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia, v.41, n.9, p.1975-1982, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this experiment was to evaluate the genetic divergence between hybrids obtained from 10 sexual genitors of the Panicum maximum breeding program at Embrapa Beef Cattle. For this, the following morphological descriptors were used: plant height, growth habit, leaf aspect, leaf waxiness, hair density on the sheath (DePB) and blade (DePL), degree of hardiness of the hairs on the leaf sheath (DuPB) and blade (DuPL) and length of hairs on the sheath and blade. The characteristics growth habit and waxiness were not included in the analysis for being invariant. The phenotypic correlations were low and, therefore, not used to eliminate variables. By the principal component analysis, an 84.3% accumulation of the variation was observed until the fourth component. The last four principal components presented an estimate lower than 0.7 and allowed the identification of the variables DePB, DuPB and DuPL as the least important for diversity studies. The morphological characters used were not efficient to distinguish the progenies, but allowed the formation of morphological groups that converged with the graphic analysis of the principal components. An apparent error rate of 17.04% was observed in the classification of the individuals in the groups and 55.5% in the classification of the individuals in the progenies. The individuals in the P. maximum half-sib progenies are genetically divergent, but may not be grouped with only the descriptors used in this experiment. The pubescence characteristics were the least important in the discrimination of the genotypes. MenosThe objective of this experiment was to evaluate the genetic divergence between hybrids obtained from 10 sexual genitors of the Panicum maximum breeding program at Embrapa Beef Cattle. For this, the following morphological descriptors were used: plant height, growth habit, leaf aspect, leaf waxiness, hair density on the sheath (DePB) and blade (DePL), degree of hardiness of the hairs on the leaf sheath (DuPB) and blade (DuPL) and length of hairs on the sheath and blade. The characteristics growth habit and waxiness were not included in the analysis for being invariant. The phenotypic correlations were low and, therefore, not used to eliminate variables. By the principal component analysis, an 84.3% accumulation of the variation was observed until the fourth component. The last four principal components presented an estimate lower than 0.7 and allowed the identification of the variables DePB, DuPB and DuPL as the least important for diversity studies. The morphological characters used were not efficient to distinguish the progenies, but allowed the formation of morphological groups that converged with the graphic analysis of the principal components. An apparent error rate of 17.04% was observed in the classification of the individuals in the groups and 55.5% in the classification of the individuals in the progenies. The individuals in the P. maximum half-sib progenies are genetically divergent, but may not be grouped with only the descriptors used in this experiment. The pub... Mostrar Tudo |
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Palavras-Chave: |
Discriminating analysis; Optimization method; Principal components; Relative importance of the characteristics. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/75097/1/LIANA-JANK-Artigo-Janaina-SBZ.pdf
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Marc: |
LEADER 02278naa a2200217 a 4500
001 1946112
005 2013-02-15
008 2012 bl uuuu u00u1 u #d
100 1 $aMARTUSCELLO, J. A.
245 $aGenetic diversity based on morphological data in Panicum maximum hybrids.$h[electronic resource]
260 $c2012
520 $aThe objective of this experiment was to evaluate the genetic divergence between hybrids obtained from 10 sexual genitors of the Panicum maximum breeding program at Embrapa Beef Cattle. For this, the following morphological descriptors were used: plant height, growth habit, leaf aspect, leaf waxiness, hair density on the sheath (DePB) and blade (DePL), degree of hardiness of the hairs on the leaf sheath (DuPB) and blade (DuPL) and length of hairs on the sheath and blade. The characteristics growth habit and waxiness were not included in the analysis for being invariant. The phenotypic correlations were low and, therefore, not used to eliminate variables. By the principal component analysis, an 84.3% accumulation of the variation was observed until the fourth component. The last four principal components presented an estimate lower than 0.7 and allowed the identification of the variables DePB, DuPB and DuPL as the least important for diversity studies. The morphological characters used were not efficient to distinguish the progenies, but allowed the formation of morphological groups that converged with the graphic analysis of the principal components. An apparent error rate of 17.04% was observed in the classification of the individuals in the groups and 55.5% in the classification of the individuals in the progenies. The individuals in the P. maximum half-sib progenies are genetically divergent, but may not be grouped with only the descriptors used in this experiment. The pubescence characteristics were the least important in the discrimination of the genotypes.
653 $aDiscriminating analysis
653 $aOptimization method
653 $aPrincipal components
653 $aRelative importance of the characteristics
700 1 $aBRAZ, T. G. dos S.
700 1 $aJANK, L.
700 1 $aCUNHA, D. de N. F. V. da
700 1 $aFONSECA, D. M.
773 $tRevista Brasileira de Zootecnia$gv.41, n.9, p.1975-1982, 2012.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroenergia. Para informações adicionais entre em contato com cnpae.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agroenergia. |
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Data corrente: |
25/10/2013 |
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Data da última atualização: |
13/11/2013 |
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Tipo da produção científica: |
Artigo de Divulgação na Mídia |
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Autoria: |
TUPINAMBÁ, D. D.; PALUAN, S. de F.; COSTA, O. Y. A.; BITENCOURT, A. C.; BERGMANN, J. C.; QUIRINO, B. F. |
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Afiliação: |
DAIVA DOMENECH TUPINAMBÁ, UCB; SHELLY DE FÁTIMA PALUAN, UCB; OHANA YONARA A. COSTA, UCB; ANA CAROLINA BITENCOURT, UCB; JESSICA CARVALHO BERGMANN, UCB; BETANIA FERRAZ QUIRINO, CNPAE. |
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Título: |
Utilização da diversidade microbiana brasileira para a produção de etanol a partir de biomassa lignocelulósica. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Microbiologia in Foco, São Paulo, ano 5, n. 21, p. 19-32, 2013. |
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Idioma: |
Português |
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Palavras-Chave: |
Biomassa celulósica; Enzimas; Etanol celulósico; Etanol de segunda geração; Inibidores; Metagenômica; Microrganismos; Saccharum sp. |
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Thesagro: |
Bioenergia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00838nam a2200265 a 4500
001 1969402
005 2013-11-13
008 2013 bl uuuu u00u1 u #d
100 1 $aTUPINAMBÁ, D. D.
245 $aUtilização da diversidade microbiana brasileira para a produção de etanol a partir de biomassa lignocelulósica.$h[electronic resource]
260 $aMicrobiologia in Foco, São Paulo, ano 5, n. 21, p. 19-32$c2013
650 $aBioenergia
653 $aBiomassa celulósica
653 $aEnzimas
653 $aEtanol celulósico
653 $aEtanol de segunda geração
653 $aInibidores
653 $aMetagenômica
653 $aMicrorganismos
653 $aSaccharum sp
700 1 $aPALUAN, S. de F.
700 1 $aCOSTA, O. Y. A.
700 1 $aBITENCOURT, A. C.
700 1 $aBERGMANN, J. C.
700 1 $aQUIRINO, B. F.
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Embrapa Agroenergia (CNPAE) |
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