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So it turns out that plants swap genetic material when grafted. It would be really interesting to plant the seeds and see what the next generation looks like fr

• nkurz 12y ago
  I don't think that you are interpreting the linked article correctly. The normal belief is that there is no gene transfer with grafting. The article claims that there can be limited gene transfer at the graft point, and that if you cut slices at this point and grow them out by tissue culture, you can propagate a true "graft hybrid", unlike the slightly more common "graft chimera". While the seeds resulting from the plant that grows from this in-vitro propagation might be interesting to study, the seeds from the fruit grafted on to the original tree are well understood to be remain true to the fruit (scion) and not the rootstock.