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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
12/09/2006 |
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Data da última atualização: |
07/07/2016 |
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Autoria: |
ALBUQUERQUE, L. G.; PEREIRA, C. S. |
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Título: |
Evolução dos modelos de avaliação genética e novos desafios. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 43., 2006, João Pessoa. Produção animal em biomas tropicais: anais dos simpósios. João Pessoa: Sociedade Brasileira de Zootecnia, 2006. p. 818-841. |
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Idioma: |
Português |
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Conteúdo: |
Neste trabalho sao revisados alguns modelos lineares mistos que vem sendo utilizados para avaliacao genetica dos animais, desde o modelo de touro passando pelo modelo animal mais simples ate a utilizacao de modelos mais especificos como os modelos de regressao aleatoria; multi-raciais e com informacao molecular. propriedades e limitacoes destes modelos sao discutidas.
Abstract: In this paper some linear mixed models, used for animal genetic evaluation, are reviewed, going from sire model to simple animal model and some specific models such as random regression models, multi-breed models and models including molecular information. Properties and limitations of these models are discussed. |
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Palavras-Chave: |
Avaliação genética; Modelo linear. |
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Thesagro: |
Genética Animal; Melhoramento Genético Animal. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01377naa a2200181 a 4500
001 1532045
005 2016-07-07
008 2006 bl uuuu u00u1 u #d
100 1 $aALBUQUERQUE, L. G.
245 $aEvolução dos modelos de avaliação genética e novos desafios.
260 $c2006
520 $aNeste trabalho sao revisados alguns modelos lineares mistos que vem sendo utilizados para avaliacao genetica dos animais, desde o modelo de touro passando pelo modelo animal mais simples ate a utilizacao de modelos mais especificos como os modelos de regressao aleatoria; multi-raciais e com informacao molecular. propriedades e limitacoes destes modelos sao discutidas. Abstract: In this paper some linear mixed models, used for animal genetic evaluation, are reviewed, going from sire model to simple animal model and some specific models such as random regression models, multi-breed models and models including molecular information. Properties and limitations of these models are discussed.
650 $aGenética Animal
650 $aMelhoramento Genético Animal
653 $aAvaliação genética
653 $aModelo linear
700 1 $aPEREIRA, C. S.
773 $tIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 43., 2006, João Pessoa. Produção animal em biomas tropicais: anais dos simpósios. João Pessoa: Sociedade Brasileira de Zootecnia, 2006. p. 818-841.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
16/11/2017 |
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Data da última atualização: |
16/11/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
GERHARDT, I. F. S.; AMARAL JÚNIOR, A. T.; GUIMARAES, L. J. M.; SCHWANTES, I. A.; SANTOS, A.; KAMPHORST, S. H.; LIMA, V. J.; POBLETE, F. M.; MYERS, G. O. |
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Afiliação: |
Universidade Estadual do Norte Fluminense Darcy Ribeiro; Universidade Estadual do Norte Fluminense Darcy Ribeiro; LAURO JOSE MOREIRA GUIMARAES, CNPMS; Universidade Estadual do Norte Fluminense Darcy Ribeiro; Universidade Estadual do Norte Fluminense Darcy Ribeiro; Universidade Estadual do Norte Fluminense Darcy Ribeiro; Universidade Estadual do Norte Fluminense Darcy Ribeiro; Universidad de Talca, Chile; Louisiana State University. |
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Título: |
Intraspecific variability of popcorn S7 lines for phosphorus efficiency in the soil. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Genetics and Molecular Research, Ribeirão Preto, v. 16, n. 3, p. 1-13, 2017. |
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DOI: |
10.4238/gmr16039763 |
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Idioma: |
Inglês |
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Conteúdo: |
The expansion of agriculture, coupled with the need for sustainable cropping, is one of the greatest challenges of the scientific community working on the generation of new cultivars adapted to abiotic stress conditions. The aim of this study was to evaluate the variability of popcorn lines as to responsiveness and efficiency in phosphorus use, as a first step towards the implementation of a breeding program interested in the practice of sustainable agriculture. Twenty-five popcorn lines were evaluated in two locations with different phosphorus levels in the soil, using a randomized block design. The following traits were measured: plant height, ear height, female flowering date, male flowering date, male-female flowering interval, ear diameter, ear length, 100-grain weight, grain yield, popping expansion, and expanded popcorn volume per hectare. A combined analysis of variance and test of means were performed, and the lines were classified as to their phosphorus use efficiency, according to their production performance in the different environments. The genetic diversity between the lines was estimated by Tocher?s and UPGMA clustering methods, using generalized Mahalanobis distance. Lines L59, P7, P2, P3, P4, P8, P10, P9, L66, L70, L69, and P5 were efficient and responsive, whereas lines L75, L80, L61, L77, L63, L65, P1, L54, L53, L88, and L71 were inefficient and nonresponsive. Genetic variability was greater in the environments with low phosphorus in the soil, suggesting that the selection pressure exerted in the stressing environment is a decisive factor to obtain a higher expression of variability. MenosThe expansion of agriculture, coupled with the need for sustainable cropping, is one of the greatest challenges of the scientific community working on the generation of new cultivars adapted to abiotic stress conditions. The aim of this study was to evaluate the variability of popcorn lines as to responsiveness and efficiency in phosphorus use, as a first step towards the implementation of a breeding program interested in the practice of sustainable agriculture. Twenty-five popcorn lines were evaluated in two locations with different phosphorus levels in the soil, using a randomized block design. The following traits were measured: plant height, ear height, female flowering date, male flowering date, male-female flowering interval, ear diameter, ear length, 100-grain weight, grain yield, popping expansion, and expanded popcorn volume per hectare. A combined analysis of variance and test of means were performed, and the lines were classified as to their phosphorus use efficiency, according to their production performance in the different environments. The genetic diversity between the lines was estimated by Tocher?s and UPGMA clustering methods, using generalized Mahalanobis distance. Lines L59, P7, P2, P3, P4, P8, P10, P9, L66, L70, L69, and P5 were efficient and responsive, whereas lines L75, L80, L61, L77, L63, L65, P1, L54, L53, L88, and L71 were inefficient and nonresponsive. Genetic variability was greater in the environments with low phosphorus in the soil, suggesting ... Mostrar Tudo |
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Palavras-Chave: |
Divergência genética; Estresse abiótico. |
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Thesagro: |
Agricultura sustentável; Fósforo; Milho pipoca; Variação genética; Zea mays. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/166790/1/Intraspecific-variability.pdf
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Marc: |
LEADER 02570naa a2200313 a 4500
001 2079868
005 2017-11-16
008 2017 bl uuuu u00u1 u #d
024 7 $a10.4238/gmr16039763$2DOI
100 1 $aGERHARDT, I. F. S.
245 $aIntraspecific variability of popcorn S7 lines for phosphorus efficiency in the soil.$h[electronic resource]
260 $c2017
520 $aThe expansion of agriculture, coupled with the need for sustainable cropping, is one of the greatest challenges of the scientific community working on the generation of new cultivars adapted to abiotic stress conditions. The aim of this study was to evaluate the variability of popcorn lines as to responsiveness and efficiency in phosphorus use, as a first step towards the implementation of a breeding program interested in the practice of sustainable agriculture. Twenty-five popcorn lines were evaluated in two locations with different phosphorus levels in the soil, using a randomized block design. The following traits were measured: plant height, ear height, female flowering date, male flowering date, male-female flowering interval, ear diameter, ear length, 100-grain weight, grain yield, popping expansion, and expanded popcorn volume per hectare. A combined analysis of variance and test of means were performed, and the lines were classified as to their phosphorus use efficiency, according to their production performance in the different environments. The genetic diversity between the lines was estimated by Tocher?s and UPGMA clustering methods, using generalized Mahalanobis distance. Lines L59, P7, P2, P3, P4, P8, P10, P9, L66, L70, L69, and P5 were efficient and responsive, whereas lines L75, L80, L61, L77, L63, L65, P1, L54, L53, L88, and L71 were inefficient and nonresponsive. Genetic variability was greater in the environments with low phosphorus in the soil, suggesting that the selection pressure exerted in the stressing environment is a decisive factor to obtain a higher expression of variability.
650 $aAgricultura sustentável
650 $aFósforo
650 $aMilho pipoca
650 $aVariação genética
650 $aZea mays
653 $aDivergência genética
653 $aEstresse abiótico
700 1 $aAMARAL JÚNIOR, A. T.
700 1 $aGUIMARAES, L. J. M.
700 1 $aSCHWANTES, I. A.
700 1 $aSANTOS, A.
700 1 $aKAMPHORST, S. H.
700 1 $aLIMA, V. J.
700 1 $aPOBLETE, F. M.
700 1 $aMYERS, G. O.
773 $tGenetics and Molecular Research, Ribeirão Preto$gv. 16, n. 3, p. 1-13, 2017.
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Embrapa Milho e Sorgo (CNPMS) |
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