Chimera

Chimera, in botany, a plant or plant part that is a mixture of two or more genetically different types of cells. A chimera may be a “graft hybrid,” a bud that in plant grafting appears at the junction of the scion and stock and contains tissues of both plants. Although such chimeras appeared adventitiously in times past, they were first seriously studied by the German botanist Hans Winkler in 1907. In his first experiments, black...