The cdkd;2 mutants are not resistant to drought stress. A, Transfer DNA insertion sites in CDKD;2. Black bars indicate exons, and white bars indicate introns. F and R indicate the location of the primers used for gene expression analysis. B, CDKD;2 expression levels in 10-d-old wild-type, cdkd;2-2, and cdkd;2-3 seedlings were determined by qRT-PCR analysis. C, Water loss of detached leaves from wild-type and cdkd;2 plants. Values are means ± se. D, Comparison of drought stress responsiveness of wild-type and cdkd;2 plants.