Abstract
The QCD-motivated integral equation for the qq¯ pair is derived taking into account Reggeization of quarks and asymptotic freedom. This equation is shown to generate an infinite number of Regge poles accumulating at j=0. It is expected that this short-range effect constraining the intercept of leading Regge singularities to be at least near zero independently of the flavors involved should not be affected by confinement. The phenomenological relevance of this constraint for charm production is pointed out.