In Type-I seesaw model, the lepton flavor mixing matrix (PMNS matrix) and the quark flavor mixing matrix (CKM matrix) may be connected implicitly through a relation between the neutrino Dirac Yukawa coupling Y_D and the quark Yukawa couplings. In this paper, we study whether Y_D can satisfy, in the flavor basis where the charged lepton Yukawa and right-handed neutrino Majorana mass matrices are diagonal, the relation Y_D ∝ diag(y_d,y_s,y_b)V_CKM^T or Y_D ∝ diag(y_u,y_c,y_t)V_CKM^* without

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... dicting the current experimental data on quarks and neutrino oscillations. We search for sets of values of the neutrino Dirac CP phase δ_CP, Majorana phases α_2,α_3, and the lightest active neutrino mass that satisfy either of the above relations, with the normal or inverted hierarchy of neutrino mass. In performing the search, we consider renormalization group evolutions of the quark masses and CKM matrix and the propagation of their experimental errors along the evolutions. We find that only the former relation Y_D ∝ diag(y_d,y_s,y_b)V_CKM^T with the normal neutrino mass hierarchy holds, based on which we make a prediction for δ_CP, α_2, α_3 and the lightest active neutrino mass.