Fig. 1

The relative expression of Pht1 family members in germinating rice seeds. The relative expression of OsPT1, OsPT2, OsPT3, OsPT4, OsPT6, OsPT7, OsPT8, OsPT9, OsPT10 and OsPT12 of NP seeds in 12 h, 24 h, 48 h and 72 h after germinated. Germinating seeds were harvested for qRT-PCR analysis. OsACTIN (LOC_Os10g36650) were used as internal controls. Values are means ± SE (n = 3). Asterisk indicate that the values differ significantly in comparisons with the expression level of OsPT4 germinating for 12 h (*P < 0.05, **P < 0.01, ***P < 0.001, Student’ s test)