Dwarfism is an important plant architecture trait in crop breeding(Peng et al.,1999;Sasaki el al.,2002).In cucurbits.the compact plant type was proposed to develop new varieties for the once-over mechanical harvest for concentrated fruit set and higher densities(Li et al.,2011;Mondal et al.,2011).Several recessive genes in cucurbits have been reported to confer the phenotype of short internodes or bushy plant habits,such as compact,cp-2,and dw in cucumber(Cucumis sativus Dwarfism is an important plant architecture trait in crop breeding (Peng et al., 1999; Sasaki el al., 2002). In cucurbits. The compact plant type was proposed to develop new varieties for the once-over mechanical harvest for concentrated fruit set and higher densities (Li et al., 2011; Mondal et al., 2011). Selective recessive genes in cucurbits have been reported to confer the phenotype of short internodes or bushy plant habits, such as compact, cp-2, and dw in cucumber (Cucumis sativus