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The hierarchical structure of fermion masses and mixings strongly suggests anunderlying family symmetry. In supergravity any familon field spontaneouslybreaking this symmetry necessarily acquires an F-term which contributes to thesoft trilinear couplings. We show, as a result, mu -> e gamma decay can receivelarge contributions from this source at the level of current experimentalbounds and thus this channel may provide the first indication of supersymmetryand a clue to the structure of the soft breaking sector. Using the mercury EDMbounds we find strong bounds on the right handed down quark mixing angles thatare inconsistent with models relating them to neutrino mixing angles and favoura near-symmetric form for the magnitude of the down quark mass matrix.Comment: Final version to appear in PRD. Improved discusion of several points,  updated references, typos correcte

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Yukawa structure, flavor changing, and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>CP</mml:mi></mml:math>violation in supergravity

Yukawa structure, flavor changing, andCPviolation in supergravity