Prediction of genotypic values and estimation of genetic parameters in common bean
Eighteen common bean (Phaseolus vulgaris L.) genotypes were evaluated in 25 environments of the state of São Paulo in 2001 and 2002. The estimation of genetic parameters by the Restricted Maximum Likelihood (REML) and the prediction of genotypic values via Best Linear Unbiased Prediction (BLUP) were...
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| Format: | Article |
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Instituto de Tecnologia do Paraná (Tecpar)
2008-06-01
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| Series: | Brazilian Archives of Biology and Technology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000300005 |
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| author | Alisson Fernando Chiorato Sérgio Augusto Morais Carbonell Luiz Antônio dos Santos Dias Marcos Deon Vilela de Resende |
| author_facet | Alisson Fernando Chiorato Sérgio Augusto Morais Carbonell Luiz Antônio dos Santos Dias Marcos Deon Vilela de Resende |
| author_sort | Alisson Fernando Chiorato |
| collection | DOAJ |
| description | Eighteen common bean (Phaseolus vulgaris L.) genotypes were evaluated in 25 environments of the state of São Paulo in 2001 and 2002. The estimation of genetic parameters by the Restricted Maximum Likelihood (REML) and the prediction of genotypic values via Best Linear Unbiased Prediction (BLUP) were obtained by software Selegen-REML/BLUP. The estimate of the broad-sense heritability was low for the grain yield (0.03), since it took individual plots into consideration and was free of the effects of interaction with years, cultivation periods and site. Nevertheless, the heritability at the level of line means across the various environments was high (0.75), allowing a high accuracy (0.87) in the selection of lines for planting in the environment mean. Among the 18 genotypes, the predicted genotypic values of nine were higher than the general mean. The genetic gain predicted with the selection of the best line, in this case line Gen 96A31 of the IAC, was 16.25%.<br>Dezoito genótipos de feijoeiro (Phaseolus vulgaris L.) foram avaliados em 25 ambientes do estado de São Paulo durante os anos de 2001 e 2002. As estimativas de parâmetros genéticos por REML e a predição de valores genotípicos via BLUP foram obtidas por meio do aplicativo computacional Selegen REML/BLUP, seguindo o modelo misto para linhagens. A estimativa da herdabilidade no sentido amplo para produção de grãos foi baixa (0,03), por ser em nível de parcelas individuais e livre dos efeitos da interação com anos, épocas e locais. No entanto, a herdabilidade ao nível de médias de linhagens ao longo dos vários ambientes foi alta (0,75), permitindo alta acurácia (0,87) na seleção de linhagens para plantio no ambiente médio. Dentre os 18 genótipos, nove apresentaram valores genotípicos preditos superiores à média geral. O ganho genético predito com a seleção da melhor linhagem, no caso, a linhagem Gen 96A31 do IAC, foi de 16,25%. |
| first_indexed | 2024-04-12T20:44:29Z |
| format | Article |
| id | doaj.art-110c50d53a8d4c21a4899c6f4a2c5b99 |
| institution | Directory Open Access Journal |
| issn | 1516-8913 1678-4324 |
| language | English |
| last_indexed | 2024-04-12T20:44:29Z |
| publishDate | 2008-06-01 |
| publisher | Instituto de Tecnologia do Paraná (Tecpar) |
| record_format | Article |
| series | Brazilian Archives of Biology and Technology |
| spelling | doaj.art-110c50d53a8d4c21a4899c6f4a2c5b992022-12-22T03:17:18ZengInstituto de Tecnologia do Paraná (Tecpar)Brazilian Archives of Biology and Technology1516-89131678-43242008-06-0151346547210.1590/S1516-89132008000300005Prediction of genotypic values and estimation of genetic parameters in common beanAlisson Fernando ChioratoSérgio Augusto Morais CarbonellLuiz Antônio dos Santos DiasMarcos Deon Vilela de ResendeEighteen common bean (Phaseolus vulgaris L.) genotypes were evaluated in 25 environments of the state of São Paulo in 2001 and 2002. The estimation of genetic parameters by the Restricted Maximum Likelihood (REML) and the prediction of genotypic values via Best Linear Unbiased Prediction (BLUP) were obtained by software Selegen-REML/BLUP. The estimate of the broad-sense heritability was low for the grain yield (0.03), since it took individual plots into consideration and was free of the effects of interaction with years, cultivation periods and site. Nevertheless, the heritability at the level of line means across the various environments was high (0.75), allowing a high accuracy (0.87) in the selection of lines for planting in the environment mean. Among the 18 genotypes, the predicted genotypic values of nine were higher than the general mean. The genetic gain predicted with the selection of the best line, in this case line Gen 96A31 of the IAC, was 16.25%.<br>Dezoito genótipos de feijoeiro (Phaseolus vulgaris L.) foram avaliados em 25 ambientes do estado de São Paulo durante os anos de 2001 e 2002. As estimativas de parâmetros genéticos por REML e a predição de valores genotípicos via BLUP foram obtidas por meio do aplicativo computacional Selegen REML/BLUP, seguindo o modelo misto para linhagens. A estimativa da herdabilidade no sentido amplo para produção de grãos foi baixa (0,03), por ser em nível de parcelas individuais e livre dos efeitos da interação com anos, épocas e locais. No entanto, a herdabilidade ao nível de médias de linhagens ao longo dos vários ambientes foi alta (0,75), permitindo alta acurácia (0,87) na seleção de linhagens para plantio no ambiente médio. Dentre os 18 genótipos, nove apresentaram valores genotípicos preditos superiores à média geral. O ganho genético predito com a seleção da melhor linhagem, no caso, a linhagem Gen 96A31 do IAC, foi de 16,25%.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000300005REMLBLUPPhaseolus vulgarisMixed Models |
| spellingShingle | Alisson Fernando Chiorato Sérgio Augusto Morais Carbonell Luiz Antônio dos Santos Dias Marcos Deon Vilela de Resende Prediction of genotypic values and estimation of genetic parameters in common bean Brazilian Archives of Biology and Technology REML BLUP Phaseolus vulgaris Mixed Models |
| title | Prediction of genotypic values and estimation of genetic parameters in common bean |
| title_full | Prediction of genotypic values and estimation of genetic parameters in common bean |
| title_fullStr | Prediction of genotypic values and estimation of genetic parameters in common bean |
| title_full_unstemmed | Prediction of genotypic values and estimation of genetic parameters in common bean |
| title_short | Prediction of genotypic values and estimation of genetic parameters in common bean |
| title_sort | prediction of genotypic values and estimation of genetic parameters in common bean |
| topic | REML BLUP Phaseolus vulgaris Mixed Models |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000300005 |
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