Additional file 1 of Genome-wide identification of ubiquitin proteasome subunits as superior reference genes for transcript normalization during receptacle development in strawberry cultivars

Additional file 1: Figure S1. The structure of strawberry fruit in ‘Ruegen’. Figure S2. Identification, phylogenetic and domain analyses of the Actin gene family in strawberry and Arabidopsis. Figure S3. Identification, phylogenetic and domain analyses of the GAPDH gene family in strawberry and Arabidopsis. Figure S4. Identification, phylogenetic and domain analyses of the Tubulin gene family in strawberry and Arabidopsis. Figure S5. Identification, phylogenetic and domain analyses of the EF1α gene family in strawberry and Arabidopsis. Figure S6. Identification, phylogenetic and domain analyses of the QUL gene family in strawberry and Arabidopsis. Figure S7. Identification, phylogenetic and domain analyses of the SWIB gene family in strawberry and Arabidopsis. Figure S8. Identification, phylogenetic and domain analyses of the FHA gene family in strawberry and Arabidopsis. Figure S9. Identification, phylogenetic and domain analyses of the UBC gene family in strawberry and Arabidopsis. Figure S10. Identification, phylogenetic and domain analyses of the AP2/ERF gene family in strawberry and Arabidopsis. Figure S11. Identification, and phylogenetic and domain analyses of the bZip gene family in strawberry and Arabidopsis. Figure S12. Identification, phylogenetic and domain analyses of the PDC gene family in strawberry and Arabidopsis. Figure S13. Identification, phylogenetic and domain analyses of the HISTH4 gene family in strawberry and Arabidopsis. Figure S14. Identification of qualified HKGs in strawberry receptacle development based on RNA-seq data. Figure S15. Schematic illustration of the cellular functions of nine “SRDS” RGs. Figure S16. Relative expression of candidate reference genes from RNA-seq data. Figure S17. Strawberry receptacle RNA sample quality assessment. Figure S18. Specificity assessment of RT-qPCR primers. Figure S19. Flow chart showing procedure for RT-qPCR analysis of candidate reference genes during strawberry receptacle development. Figure S20. Expression stability of candidate reference genes of ‘Ruegen’ analyzed by RT-qPCR. Figure S21. Expression stability of candidate reference genes of ‘Monterey’ analyzed by RT-qPCR. Table S1. Description of 80 samples with receptacle development for RNA-seq in strawberry. Table S2. The information of HKG families in strawberry and Arabidopsis.