Gene duplication type classification analysis, using DupGen_finder, can divide all genes into 5 categories according to the replication type, namely WGD: whole genome duplication, TD: tandem duplication (two adjacent duplication genes), PD: Proximal duplications (repeated genes within 10 genes apart), TRD: transposed duplications (duplicated genes consisting of ancestral and new loci), DSD: scattered duplications (duplicated genes that are neither adjacent nor collinear)
  Among them, Cucurbita maxima was the species with the most WGD genes, Benincasa hispida was the species with the most TD genes, Begonia masoniana was the species with the most PD gene replication type, Begonia masoniana was the species with the most TRD genes,and Benincasa hispida was the species with the most DSD genes.