Fig. 2

Differentially expressed genes between storage roots and fibrous roots of sweet potato in transcriptome. a Number of differentially expressed transcripts between D1 stage sorage roots and fibrous roots (D1 vs F), D3 stage sorage roots and fibrous roots (D3 vs F), D5 stage sorage roots and fibrous roots (D3 vs F) as well as D10 stage sorage roots and fibrous roots (D10 vs F). b Clusters of differentially expressed genes. 1359 DEGs are contained in sub_cluster_1, 1699 DEGs are contained in sub_cluster_2, 2 DEGs are contained in sub_cluster_3, and 23,366 DEGs are contained in sub_cluster_4. F_1, F_2 and F_3, fibrous root; D1_1, D1_2 and D1_3, initial storage root (diameter is about 1 cm); D3_1, D3_2 and D3_3, storage root (diameter is about 3 cm); D5_1, D5_2 and D5_3, storage root (diameter is about 5 cm); D10_1, D10_2 and D10_3, storage root (diameter is about 10 cm)