“…A previous study reported that cooperation between the velocity and duration of fruit swelling determines fruit size [13], which is determined by both cell number and size [14][15][16]. Currently, little is known about the genes that control fruit size, with the exception of genes involved in the cell cycle, cell wall metabolism, cytochrome, and ubiquitin [13,17,18]. Specifically, cyclin, RNA polymerase II transcription, and mitogen-activated protein kinase kinase kinase are involved in the cell cycle [19][20][21], xyloglucan galactosyltransferase, glycosyltransferase, cellulose synthase, β-galactosidase, and microtubule-associated proteins are associated with cell wall metabolism [22][23][24][25], and transcription factors, including basic region/leucine zipper motif (bZIP) [26], NAM/ATAF1/2/CUC2 (NAC) [27], v-myb avian myeloblastosis viral oncogene homolog (MYB) [28], basic/helix-loop-helix (bHLH) [29], and WRKY [30], are components of the fruit size regulation network.…”