TY - JOUR
T1 - Impact of Interpopulation Divergence on Additive and Dominance Variance in Hybrid Populations
JF - Genetics
JO - Genetics
SP - 1931
LP - 1934
DO - 10.1534/genetics.107.074146
VL - 176
IS - 3
AU - Reif, J. C.
AU - Gumpert, F.-M.
AU - Fischer, S.
AU - Melchinger, A. E.
Y1 - 2007/07/01
UR - http://www.genetics.org/content/176/3/1931.abstract
N2 - We present a theoretical proof that the ratio of the dominance vs. the additive variance decreases with increasing genetic divergence between two populations. While the dominance variance is the major component of the variance due to specific combining ability (\batchmode \documentclass[fleqn,10pt,legalpaper]{article} \usepackage{amssymb} \usepackage{amsfonts} \usepackage{amsmath} \pagestyle{empty} \begin{document} \(\mathrm{{\sigma}}_{\mathrm{SCA}}^{2}\) \end{document}), the additive variance is the major component of the variance due to general combining ability (\batchmode \documentclass[fleqn,10pt,legalpaper]{article} \usepackage{amssymb} \usepackage{amsfonts} \usepackage{amsmath} \pagestyle{empty} \begin{document} \(\mathrm{{\sigma}}_{\mathrm{GCA}}^{2}\) \end{document}). Therefore, we conclude that interpopulation improvement becomes more efficient with divergent than with genetically similar heterotic groups, because performance of superior hybrids can be predicted on the basis of general combining ability effects.
ER -