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Fig. S1 Modular structure of rice proteins encompassing the SPX domain.

Fig. S2 Expression analysis of OsSPX-MFS1, OsSPX-MFS2 and OsSPX-MFS3 in leaves and roots.

Fig. S3 Expression analysis of OsSPX-MFS1, OsSPX-MFS2, OsSPX-MFS3 and osa-miR827 under different Pi starvation treatments.

Fig. S4 Nucleotide sequence of the promoter and gene region of osa-miR827.

Fig. S5 Expression analysis ofOsSPX-MFS1 (A), OsSPX-MFS2 (B), OsSPX-MFS3 (C) and Pri-miR827 (D) in osa-miR827 overexpression lines and msf1 in the roots.

Table S1 Sequences of the primer sets used in the study

Table S2 General information of SPX-MFS genes in rice

nph4227_sm_FigS1-S5-TablesS1-S2.ppt808KSupporting info item