Graft compatibility of persimmons

So this is a rather unusual persimmon grafting question, but does anyone know if D. nigra (black sapote) has ever been tested for graft compatibility with other Diospyros species? I’m growing some D. texana (Texas persimmon) seedlings and the eventual goal is to try to hybridize them with nigra, so it would be really convenient if I could just use the texanas as rootstocks for nigra scions, too.

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