I need to get a dimeric infective clone from a Capulavirus, a Geminivirus of simple strand DNA. So I would like know some conditions for the procedure of obtaining it. I´m using XhoI which only make one cut on the genome of the virus. The genome is aprox 2.5kb and I need a dime of aprox 5kb. Some could throw opinions, ideas, or a certain conditions for the digestion.