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It might be expected that only global symmetries are fundamental symmetriesof Nature, whereas local symmetries and associated massless gauge fields couldsolely emerge due to spontaneous breaking of underlying spacetime symmetriesinvolved, such as relativistic invariance and supersymmetry. This breaking,taken in the form of the nonlinear sigma-model type pattern for vector fieldsor superfields, puts essential restrictions on geometrical degrees of freedomof a physical field system that makes it to adjust itself in such a way thatits global internal symmetry G turns into the local symmetry G_{loc}.Remarkably, this emergence process may naturally be triggered by spontaneouslybroken supersymmetry, as is illustrated in detail by an example of a generalsupersymmetric QED model which is then extended to electroweak models and grandunified theories. Among others, the U(1)xSU(2) symmetrical Standard Model andflipped SU(5) GUT appear preferable to emerge at high energies.

Emergent SUSY Theories: QED, SM & GUT