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Généralisation de l'utilisation de la transformation canonique pour la résolution des équations du modèle mixte multicaractère

Abstract : The canonical transformation converts t correlated traits into t phenotypically and genetically independent traits. Its application to multiple trait BLUP genetic evaluations decreases computing requirements, increases the convergence rate of iterative solvers and simplifies programming. This paper presents alternative ways to retain, at least partly, these desirable characteristics in situations where the canonical transformation is theoretically impossible: when some traits are missing in some animals (including when a reduced animal model is used), when more than one random effect is included in the model and when different traits are described by different models.
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  • HAL Id : hal-02685567, version 1
  • PRODINRA : 132384

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Vincent Ducrocq, Herve Chapuis. Généralisation de l'utilisation de la transformation canonique pour la résolution des équations du modèle mixte multicaractère. Genetics Selection Evolution, BioMed Central, 1997, 29 (3), pp.205-224. ⟨hal-02685567⟩

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