Interspecific and Intergeneric Crosses in Cultivated Plants (1997)

Soya-Tobacco Protoplast Hybrid
A. Belea

Cell hybridisation between genera which are only distantly related to each other leads to the formation of hybrid cell lines. After somatic cell fusion between soya and tobacco, Kao (1977) selected cell lines in which the presence of tobacco characters could be proved using cytological and isoenzymatic analyses even after several years, despite the fact that the chromosomes were lost. Cell lines of this type have also been produced for other genera.

This may be compared to the Phragmipaphium, a hybrid of Paphiopedilum x Phragmipedium, which seems to be a definite intergeneric hybrid, though the chromosomes appear to be entirely maternal.