Are you talking about splicing all the plants together at early stages of growth or grafting? i don't know anything about splicing genes, but if youre talking about grafting one strain of cannabis to another. when you graft a scion (the part you cut off) to a rootstock (the plant you put it on) they both keep their original genes. you can graft many strains to one rootstock and they all stay the same as they were, therefore if you have for instance a purple kush plant with a chem d branch grafted to it, you can take cuts off of the chem d branch and it will remain chem d.. its very easy. heres one method thats very simple and works well. make sure the rootstock has branches that are somewhat woody, doesn't even have to be that thick, cut the branch and carve a V into it with a sterile scalpel.. take a cut off another plant just as you would a cutting.. cut a point that fits into the V make sure the middle is exposed on each cut so they touch each other.. hold it shut with a clothespin, dont worry about glue or seal don't need it, trust me.. spray cover with a bag (spray the inside) and cut the corners a little so it breathes. twisty tie the bottom shut you wanna keep it humid for a few days. if it sags breathe into the slits in the bag helps or if it needs it take the bag off and spray it down let it breathe cover with bag again.. you'll know when it's taking because the leaves will start pressing against the bag. the graft needs to be hardened off. give it a couple hours with no bag one day, then a day without the next, and the 3rd you should be good to take the bag off, and finally remove the clothespin.. you'll see where the cuts are growing together, after a while it gets so solid you can barely tell it was grafted.. Wondering if your talking about this or not?