MADS-box gene family plays an important role in the molecular regulatory network of flower development. APETALA1 (AP1), a gene, development organs. Although many studies about genes have been reported, function AP1 is still not clear cotton. In this study, GhAP1.7 (Gh_D03G0922), candidate for cotton time and plant height obtained from our previous studies, was cloned CCRI50 variety functionally...