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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
03/06/2023 |
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Data da última atualização: |
03/06/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VIDAL, A. K. F.; DAHER, R. F.; AMBRÓSIO, M.; SANTANA, J. G. S.; FREITAS, R. S.; GRAVINA, G. de A.; RODRIGUES, E. V.; STIDA, W. F.; SOUZA, A. G. de; LEITE, C. L.; FARIAS, J. E. C.; RANGEL, L. H.; PEREIRA, A. V. |
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Afiliação: |
ANA KESIA FARIA VIDAL, Universidade Estadual do Norte Fluminense Darcy Ribeiro; ROGÉRIO FIGUEIREDO DAHER, Universidade Estadual do Norte Fluminense Darcy Ribeiro; MOISES AMBRÓSIO, Universidade Estadual do Norte Fluminense Darcy Ribeiro; JOSEFA GRASIELA SILVA SANTANA, Universidade Estadual do Norte Fluminense Darcy Ribeiro; RAFAEL SOUZA FREITAS, Universidade Estadual do Norte Fluminense Darcy Ribeiro; GERALDO DE AMARAL GRAVINA, Universidade Estadual do Norte Fluminense Darcy Ribeiro; ERINA VITÓRIO RODRIGUES, Universidade de Brasília; WANESSA FRANCESCONI STIDA, Universidade Estadual do Norte Fluminense Darcy Ribeiro; ALEXANDRE GOMES DE SOUZA, Universidade Estadual do Norte Fluminense Darcy Ribeiro; CLEUDIANE LOPES LEITE, Universidade Estadual do Norte Fluminense Darcy Ribeiro; JOÃO ESDRAS CALAÇA FARIAS, Universidade Estadual do Norte Fluminense Darcy Ribeiro; LEANDRO HEITOR RANGEL, Universidade Estadual do Norte Fluminense Darcy Ribeiro; ANTONIO VANDER PEREIRA, CNPGL. |
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Título: |
Estimation of repeatability and genotypic superiority of elephant grass half-sib families for energy purposes using mixed models. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Scientia Agricola, v. 80, e20220103, 2023. |
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DOI: |
http://doi.org/10.1590/1678-992X-2022-0103 |
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Idioma: |
Inglês |
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Conteúdo: |
The mixed-model methodology is an alternative to select genotypes for traits highly influenced by the environment. In addition, this method allows FOR estimating the repeatability coefficient and predicting the number of assessments needed for a selection process to increase reliability. This study aimed to determine the minimum number of evaluations necessary for a reliable selection process and to estimate the variance components used for predicting genetic gains between and within half-sib families of elephant grass (Cenchrus purpureus (Schumach.) Morrone) using the mixed-model methodology. Half-sib families were generated using genotypes from the Active Germplasm Bank of Elephant Grass. The experiment was performed in a randomized block design with nine half-sib families, three replicates, and eight plants per plot. We evaluated 216 genotypes (individual plants) of elephant grass. The deviance analysis was carried out, genetic parameters were estimated, gains between and within families were predicted, and repeatability coefficients were obtained using Selegen software. There was genetic variability for selection within the families evaluated. The reliability values found above 60 % for plant height and number of tillers and above 80 % for dry matter yield suggest that only two evaluations are required to select superior genotypes with outstanding reliability. Sixteen genotypes were identified and selected for their productive potential, which can be used as parents in elephant grass breeding programs for bioenergy production. MenosThe mixed-model methodology is an alternative to select genotypes for traits highly influenced by the environment. In addition, this method allows FOR estimating the repeatability coefficient and predicting the number of assessments needed for a selection process to increase reliability. This study aimed to determine the minimum number of evaluations necessary for a reliable selection process and to estimate the variance components used for predicting genetic gains between and within half-sib families of elephant grass (Cenchrus purpureus (Schumach.) Morrone) using the mixed-model methodology. Half-sib families were generated using genotypes from the Active Germplasm Bank of Elephant Grass. The experiment was performed in a randomized block design with nine half-sib families, three replicates, and eight plants per plot. We evaluated 216 genotypes (individual plants) of elephant grass. The deviance analysis was carried out, genetic parameters were estimated, gains between and within families were predicted, and repeatability coefficients were obtained using Selegen software. There was genetic variability for selection within the families evaluated. The reliability values found above 60 % for plant height and number of tillers and above 80 % for dry matter yield suggest that only two evaluations are required to select superior genotypes with outstanding reliability. Sixteen genotypes were identified and selected for their productive potential, which can be used as parents in e... Mostrar Tudo |
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Palavras-Chave: |
Cenchrus purpureus; REML/BLUP. |
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Thesagro: |
Bioenergia; Capim Elefante. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154202/1/Estimation-of-repeatability-and-genotypic-superiority-of-elephant-grass.pdf
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Marc: |
LEADER 02534naa a2200325 a 4500
001 2154202
005 2023-06-03
008 2023 bl uuuu u00u1 u #d
024 7 $ahttp://doi.org/10.1590/1678-992X-2022-0103$2DOI
100 1 $aVIDAL, A. K. F.
245 $aEstimation of repeatability and genotypic superiority of elephant grass half-sib families for energy purposes using mixed models.$h[electronic resource]
260 $c2023
520 $aThe mixed-model methodology is an alternative to select genotypes for traits highly influenced by the environment. In addition, this method allows FOR estimating the repeatability coefficient and predicting the number of assessments needed for a selection process to increase reliability. This study aimed to determine the minimum number of evaluations necessary for a reliable selection process and to estimate the variance components used for predicting genetic gains between and within half-sib families of elephant grass (Cenchrus purpureus (Schumach.) Morrone) using the mixed-model methodology. Half-sib families were generated using genotypes from the Active Germplasm Bank of Elephant Grass. The experiment was performed in a randomized block design with nine half-sib families, three replicates, and eight plants per plot. We evaluated 216 genotypes (individual plants) of elephant grass. The deviance analysis was carried out, genetic parameters were estimated, gains between and within families were predicted, and repeatability coefficients were obtained using Selegen software. There was genetic variability for selection within the families evaluated. The reliability values found above 60 % for plant height and number of tillers and above 80 % for dry matter yield suggest that only two evaluations are required to select superior genotypes with outstanding reliability. Sixteen genotypes were identified and selected for their productive potential, which can be used as parents in elephant grass breeding programs for bioenergy production.
650 $aBioenergia
650 $aCapim Elefante
653 $aCenchrus purpureus
653 $aREML/BLUP
700 1 $aDAHER, R. F.
700 1 $aAMBRÓSIO, M.
700 1 $aSANTANA, J. G. S.
700 1 $aFREITAS, R. S.
700 1 $aGRAVINA, G. de A.
700 1 $aRODRIGUES, E. V.
700 1 $aSTIDA, W. F.
700 1 $aSOUZA, A. G. de
700 1 $aLEITE, C. L.
700 1 $aFARIAS, J. E. C.
700 1 $aRANGEL, L. H.
700 1 $aPEREIRA, A. V.
773 $tScientia Agricola$gv. 80, e20220103, 2023.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
12/06/2001 |
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Data da última atualização: |
12/06/2001 |
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Autoria: |
BARBA, C.; DELGADO, J. V.; SERENO, J. R. B.; CABELLO, A.; SANZ, R.; DIEGUEZ, E. |
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Afiliação: |
Universidad de Cordoba. Departamento de Genetica (Espanha); Embrapa Pantanal (Corumba, MS); Diputacion Provincial de Cordoba. Delegacion de Investigacion y Desarrollo Agricola y Ganadero; AECERIBER (Espanha). |
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Título: |
Diversidad genetica intrarracial del cerdo iberico. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Porci, Madrid, n.61, p.11-21, ene., 2001. |
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Idioma: |
Espanhol |
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Conteúdo: |
Se hace una pequena semblanza de la estructura poblacional del cerdo Iberico como antesala a la presentacion de resultados de los trabajos de caracterizacion de las diferentes variedades que componen la raza cerdo Iberico. En el ambito morfologico se estudiam 23 variables de naturaleza cuantitativa y cualitativa, en el ambito productivo 16 variables cuantitativas distribuidas en tres periodos fisiologicos bien diferenciados: fase antemorten pedestete, fase antemorten postdestete y fase de matadero, y finalmente en el area reproductiva se estudian 3 parametros relacionados con la productividad numerica de los animales. Concluimos que la variedad Torbiscal es la poblacion del cerdo Iberico mejor diferenciada dentro de la raza seguida de la variedad Lampino, quedando el resto del grupo configurando un agrupamiento mas o menos homogeneo. |
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Palavras-Chave: |
Caracteristica morfologica; Diverdidade genetica; Genetic diversity; Morphologic characteristic; Pig; Race. |
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Thesagro: |
Porco; Raça; Reprodução. |
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Thesaurus NAL: |
reproduction. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01602naa a2200301 a 4500
001 1806942
005 2001-06-12
008 2001 bl uuuu u00u1 u #d
100 1 $aBARBA, C.
245 $aDiversidad genetica intrarracial del cerdo iberico.
260 $c2001
520 $aSe hace una pequena semblanza de la estructura poblacional del cerdo Iberico como antesala a la presentacion de resultados de los trabajos de caracterizacion de las diferentes variedades que componen la raza cerdo Iberico. En el ambito morfologico se estudiam 23 variables de naturaleza cuantitativa y cualitativa, en el ambito productivo 16 variables cuantitativas distribuidas en tres periodos fisiologicos bien diferenciados: fase antemorten pedestete, fase antemorten postdestete y fase de matadero, y finalmente en el area reproductiva se estudian 3 parametros relacionados con la productividad numerica de los animales. Concluimos que la variedad Torbiscal es la poblacion del cerdo Iberico mejor diferenciada dentro de la raza seguida de la variedad Lampino, quedando el resto del grupo configurando un agrupamiento mas o menos homogeneo.
650 $areproduction
650 $aPorco
650 $aRaça
650 $aReprodução
653 $aCaracteristica morfologica
653 $aDiverdidade genetica
653 $aGenetic diversity
653 $aMorphologic characteristic
653 $aPig
653 $aRace
700 1 $aDELGADO, J. V.
700 1 $aSERENO, J. R. B.
700 1 $aCABELLO, A.
700 1 $aSANZ, R.
700 1 $aDIEGUEZ, E.
773 $tPorci, Madrid$gn.61, p.11-21, ene., 2001.
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Embrapa Pantanal (CPAP) |
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