Stellar and ionised gas difference respects the ellipticity. The green filled circles represent the unbarred galaxies, blue diamonds correspond to weakly barred galaxies, and violet squares represent the barred galaxies. Empty circles represent the early-type galaxies. Dashed lines represent the projection effect of a morpho-kinematic misalignment of 60° measured in the plane of the galaxy. In each panel, the grey area represents the 2σ dispersion of the sample.