In order to analyze the morphological, physiological and genetical interactions between different cells and tissues in chimeras, we artificially synthesized intergeneric chimeras between radish and red cabbage. As a result, various morphological and physiological interactions were observed. A distinctive new type of chimera with high wax secretion (described as WWW (+wax)) on the leaves was found in the V₁ (vegetatively propagated chimeras from original V₀ plants) revertant type to radish. This new type displayed a large number of flower stalk branches and flowers, and a later flowering date than the usual revertant MMM type. When crossed with control radish, the new type showed a higher pod setting rate than the control and revertant type MMM. Microscopic observation revealed that this new type partially had complex and thicker layers in the palisade parenchyma. Isozyme analysis revealed that the new type shared the parental bands beside its new band. This finding supported the existence of cabbage cells or tissues in the new type and suggested that some interaction between two different cells or tissues had occurred. Pollen fertility observation showed that the periclinal MRR type (LI-LII-LIII layer constitution) showed the lowest pollen fertility, resulting in a lack of seeds in the backcross with control radish. Progenies derived from chimeras crossed with both parents displayed the normal radish or cabbage phenotype during three successive vegetatively propagated generations. Although intergeneric chimeras showed some common characteristics to those of interspecific chimeras, it was more difficult to obtain genetic variation in the progeny.