Table S1. The expression of 40 starch biosynthetic genes in the endosperm of maize inbred lines Mo17 and Ji419 at 15 and 25 DAP; Table S2. GO term and KEGG pathway enrichment of 40 starch biosynthetic genes in the endosperm of maize inbred lines Mo17 and Ji419 at 15 and 25 DAP; Table S3. Differentially expressed miRNAs in the endosperm of maize inbred lines Mo17 and Ji419 at 15 DAP; Table S4. Differentially expressed miRNAs in the endosperm of maize inbred lines Mo17 and Ji419 at 25 DAP; Table S5. Differentially expressed miRNAs and their target genes in the endosperm of maize inbred lines Mo17 and Ji419 at 15 DAP; Table S6. Differentially expressed miRNAs and their target genes in the endosperm of maize inbred lines Mo17 and Ji419 at 25 DAP; Table S7. Predicted target genes of miRNAs in the endosperm of maize inbred lines Mo17 and Ji419 at 15 and 25 DAP; Table S8. Pearsonâ s correlation coefficients between the expression of 35 target genes and eight key starch biosynthetic genes in the endosperm of maize inbred lines Mo17 and Ji419 at 15 and 25 DAP; Table S9. Primers used in this study. (XLSX 508 kb)