The spot rupee slipped to 43.72 per dollar as against the last close of 43.68 per dollar on dollar rally in overseas markets.With crude prices moving up, government securities prices remained subdued with moderate buying demand.While prices of long-term bonds fell by 20-25 pasie, the fall was 15-20 paise in the short and medium-term papers.The 7.38% 2,015 bond closed at an yield of 6.72% as against 6.70% on Monday.