3.5 Recombination analysis
RDP4 software was used to analyze recombination events. Analysis showed that Colombia-2016 (KX857728.1) could be a potential major parent while HB-CH-2016 (KX377924.1) could be a potential minor parent. Our results provided strong statistical support for a recombination event involving CH-GX-01-2019 (P <0.01). SimPlot analysis revealed the existence of breakpoints that separated the genome of CH-GX-01-2019 into two fragments; one fragment originated from Colombia-2016 (1-1903 nt) while the another fragment originated from HB-CH-2016 (1903-7303 nt)(Fig. 4) .