Clues towards unified textures
  The issue of texture specific mass matrices has been discussed by incorporating Weak Basis transformations and the concept of `naturalness'. Interestingly, we find that starting from the most general mass matrices, one can arrive at texture four zero mass matrices which can fit both quark as well as lepton mixing data and are similar to the original Fritzsch ansatze. 
Samandeep Sharma, Priyanka Fakay, Gulsheen Ahuja and Manmohan Gupta
hep-ph