Numbers of DEGs in each developmental stage and tissues. (A) Numbers of DEGs between V1 and V2 at each developmental stage. (B) Numbers of DEGs in each developmental stage of V1 and V2. DEGs were filtered according to FPKM >5, FDR <0.01, log₂ fold change >1, or log₂ fold change <–1. Numbers in red or black indicate the number of up-regulated or down-regulated genes when the sample in red is compared with the sample in black, respectively. (This figure is available in colour at JXB online.)