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Figure 1. 

Phylogenetic analysis of the ApSWEETs from A. polygama, Arabidopsis thaliana, and Vitis vinifera. The Neighbor-joining tree was drawn using MEGA7.0 with 1,000 bootstraps. The roman numbers (I–IV) labeled with various colors indicate different clades: green – Clade I, orange – Clade II, red – Clade III, blue – Clade IV.

Figure 2. 

ApSWEET gene structure of A. polygama.

Figure 3. 

The conserved motif analyses of ApSWEETs proteins.

Figure 4. 

Conserved structural domains of ApSWEETs.

Figure 5. 

Single protein structure of ApSWEETs.

Figure 6. 

Chromosome location of ApSWEET gene family.

Figure 7. 

Collinearity analysis of the ApSWEET gene family.

Figure 8. 

The cis-elements in the promoter sequences of ApSWEETs gene in A. polygama.

Figure 9. 

ApSWEET expression of different tissues.

Figure 10. 

ApSWEET expression of different fruit development stage.

Figure 11. 

ApSWEET expression of different storage periods.