In standard Japanese, no is used as the genitive case marker, but in the Kumamoto dialect it also serves as the nominative case marker. Based on this fact, Yoshimura (2006) argues for the pro analysis of ga/no conversion. In this talk, after pointing out that ga serves as the genitive case maker as well as the nominative case marker in the dialect, we argue for the hypothesis that the genitive ga phrase is located at a position higher than SpecDP. Given that the clausal and nominal structures are hierarchically parallel (see Ogawa 2001), the differences between the genitive no and the genitive ga can be accounted for in terms of the hypothesis.