Phenotypes of Atnap-1 and Atpir-1 plants. A, Two-week-old seedlings of Col wild type, Atnap-1, and Atpir-1. Mutant leaves are epinastic and a paler green color. B, Mature Col wild-type, Atnap-1, and Atpir-1 plants. Note the extended growth of mutant inflorescence stems. C, Inflorescence stems of Col wild type, Atnap-1 and Atpir-1. D, Siliques of Col wild type. E, Siliques of Atnap-1. A significant proportion of these are smaller with reduced seed set. F, Siliques of Atpir-1. A significant proportion of these are smaller with reduced seed set. G, Chlorophyll content analysis of Col wild type, Atnap-1, and Atpir-1. Error bars represent se (n = 4).