GAUGE-YUKAWA UNIFICATION IN SO(10) SUSY GUTS

We study supersymmetric unified models with three fermion generations based on the gauge group SO(10) and require gauge-Yukawa unification, i.e. a renormalization group invariant functional relationship among t he gauge and Yukawa couplings of the third generation in the symmetric phase. In the case of the minimal model, we find that the predicted v alues for the top and bottom quark masses are in agreement with the pr esent experimental data for a wide range of supersymmetry breaking sca les, We also find that an experimental accuracy of less than 1% for th e top quark mass could test the corresponding prediction of the gauge- Yukawa unified model.