2.4 Recombination analysis
Recombination event analysis was carried out by analyzing the complete genome for the potential recombination of CH-GX-01-2019. RDP4 (http://web.cbio.uct.ac.za/ ~darren/rdp.html) (Martin et al., 2010) software (RDP, Bootscan, MaxChi, GENECONV, Chimaera, SiScan and 3Seq), along with SimPlot (http://sray.med.som.jhmi.edu/RaySoft) (Lole et al., 1999) software, were used to analyze events relating to recombination. Recombination signals and the sequences of recombination parental lineages were analyzed using SimPlot.