Scotogenic Peccei-Quinn and One-Higgs Quark and Lepton Model with Flavor Symmetry

Implementing the Peccei-Quinn mechanism to enforce CP conservation in strong interactions with heavy dark quarks, a scotogenic model of quark masses with $Z_3\times Z_3$ symmetry is discussed where there is only one Higgs doublet. A natural extension to the lepton sector using $A_4\times A_4$ is also presented.