
TY  - JOUR
A1  - Verbyla, A. P. 
A1  - Eckermann, P. J. 
A1  - Thompson, R. 
A1  - Cullis, B. R. 
T1  - The analysis of quantitative trait loci in multi-environment trials using a multiplicative mixed model
JF  - Australian Journal of Agricultural Research
JO  - Aust. J.  Agric. Res.
Y1  - 2003
VL  - 54
IS  - 12
SP  - 1395
EP  - 1408
KW  - factor analytic models, genotype by environment interaction, mixed models, multiplicative mixed models, QTL analysis, regression interval analysis; residual variation.
UR  - https://doi.org/10.1071/AR02239 
N2  - A new approach for multi-environment quantitative trait locus (QTL) analysis based on an appropriate genetic model is presented. To accommodate a multi-environment analysis, the size of a QTL effect is assumed to be a random effect. The approach results in a multiplicative mixed model for QTL &#215; environment interaction of the factor analytic type. The full genetic model may also include a factor analytic model for the residual genotype &#215; environment interaction, whereas the environmental model for the non-genetic variation involves local, global, and extraneous variation. The approach is used to determine QTLs for yield in the Arapiles &#215; Franklin doubled haploid population of the National Barley Molecular Marker Program. Analysis leads to the determination of 8 QTLs. Many of these QTLs are associated with other traits. 
ER  -

