Supersymmetric (SUSY) grand unified theories (GUTs) appear to be best motivated for understading strong, weak and electromagnetic interactions of nature. We briefly review emergence of new formulas for running fermion masses valid in direct breaking of GUTs. High scale mixing unification of quark and neutrino mixings and existence of theorems on vanishing theoretical uncertainties in GUT predictions are discussed. D-Parity properties of SO(10) representations leading to large number of intermediate breaking models are pointed out. Unification predictions of SUSY SO(10) in the light of neutrino mass, lepton flavor violation, baryogenesis via leptogenesis within gravitino constraint, and proton decay are noted. We further discuss realisation of flavour unification and possibility of fitting all fermion masses through R-Parity and D-Parity conserving left-right symmetric intermediate breaking in SUSY SO(10) × S₄. In the absence of SUSY, two interesting possibilities of minimal grand desert modifications by only one intermediate mass scalar in each case and their applications to dark matter decay through type-I seesaw are briefly noted. Heavy scalar triplet decay leptogenesis through new ansatz for type-II seesaw dominance in non-SUSY SO(10), emergence of new CP asymmetry formulas and model capabilitities to explain WIMP dark matter, vacuum stability of the scalar potential and experimentally observed limit on proton lifetime are briefly summarised.

超对称（SUSY）统一大理论（GUT）似乎最能激发人们对自然的强，弱和电磁相互作用的了解。我们简要回顾了在直接打破GUT时有效的运行费米子质量的新公式的出现。讨论了夸克和中微子混合的大规模混合统一以及在GUT预测中消失的理论不确定性的定理的存在。指出了导致大量中间破坏模型的SO（10）表示形式的D-奇偶性。SUSY SO的统一预测（10）鉴于中微子质量，注意到轻子的味道违背，在格拉维蒂诺约束下通过瘦素生成的重生，以及质子衰减。我们进一步讨论了风味统一的实现以及通过R-奇偶校验和D-奇偶校验来保留SUSY SO（10）× S _4中左右对称中间中断的所有费米子质量的可能性。在没有SUSY的情况下，简要记录了两种有趣的可能性，即在每种情况下仅通过一个中间质量标量进行最小的大沙漠修改，以及它们对通过I型跷跷板进行暗物质衰减的应用。重的标量三重态衰变leptogenesis通过对II型跷跷板在非超对称显性新拟设SO（10），简要总结了新的CP不对称公式和模型能力的出现，以解释WIMP暗物质，标量势的真空稳定性和实验观察到的质子寿命极限。