Data/hora: 12/06/2024 06:19:14

Biblioteca(s): | Embrapa Agricultura Digital.
Data corrente: | 13/01/2010
Data da última atualização: | 19/10/2010
Autoria: | ARAUJO, S. I.; REGAZZI, A. J.; ARAUJO, C. V. de; CRUZ, C. D.; SILVA, C. H. O.; VIANA, J. M. S.
Afiliação: | SIMONE INOE ARAUJO, UFMT; ADAIR JOSÉ REGAZZI, UFV; CLAUDIO VIEIRA DE ARAUJO, UFMT; COSME DAMIÃO CRUZ, UFV; CARLOS HENRIQUE OSÓRIO SILVA, UFV; JOSÉ MARCELO SORIANO VIANA, UFV.
Título: | Variance component estimation with longitudinal data: a simulation study with alternative methods.
Ano de publicação: | 2009
Fonte/Imprenta: | Crop Breeding and Applied Biotechnology, Londrina, v. 9, n. 3, p. 202-209, Sept. 2009.
Idioma: | Inglês
Conteúdo: | A pedigree structure distributed in three different places was generated. For each offspring, phenotypic information was generated for five different ages (12, 30, 48, 66 and 84 months). The data file was simulated allowing some information to be lost (10, 20, 30 and 40%) by a random process and by selecting the ones with lower phenotypic values, representing the selection effect. Three alternative analysis were used, the repeatability model, random regression model and multiple-trait model. Random regression showed to be more adequate to continually describe the covariance structure of growth over time than single-trait and repeatability models, when the assumption of a correlation between successive measurements in the same individual was different from one another. Without selection, random regression and multiple-trait models were very similar.
Palavras-Chave: | Modelo de regressão aleatória; Modelo multi-característica; Modelos de repetibilidade; Multiple-trait; Random regression; Selection.
Thesagro: | Genética; Seleção; Simulação.
Thesaurus Nal: | Repeatability.
Categoria do assunto: | --
Registro original: | Embrapa Agricultura Digital (CNPTIA)
Exemplares: | CNPTIA - (14449-1) - ADD - AP - PP -  -  -  - DIS