*4.1. Data Sources*

The physic nut genomic and proteomic sequences were downloaded from the NCBI database (Available online: https://www.ncbi.nlm.nih.gov/, Assembly JatCur\_1.0). The Dof protein sequences of *A. thaliana* were obtained from the Arabidopsis genome database (TAIR 9.0 release, Available online: http:// www.arabidopsis.org/) [35]. The Dof protein sequences of castor bean were obtained from the PlantTFDB database (Available online: http://planttfdb.cbi.pku.edu.cn/) [16]. The physic nut gene expression data were collected from the SRA database (Available online: https://www.ncbi.nlm.nih.gov/) [39].
