Fig. 7

IAA and ABA contents and expression levels of genes involved in IAA and ABA biosynthesis, catabolism and signaling pathways in WT, phs39, and Osaah mutants. A, B Contents of IAA (A) and ABA (B) in 20 DAP and 25 DAP seeds of WT, phs39, and Osaah mutants. Data are means ± SD (n = 3). C Expression levels of IAA biosynthesis and catabolism genes in 20 DAP seeds. D Expression levels of ABA biosynthesis, catabolism genes and signal-related genes in 20 DAP seeds. Data are means ± SD (n = 3). Expression analyses were performed by RT‒qPCR, and the expression levels in WT were defined as 1.0. Significant differences were determined by Student’s t-test compared with WT (n.s., no significant differences; * P < 0.05; ** P < 0.01)