Tetraploidization of hybrid "Raphanobrassica"
Artificial hybridization of radish (Raphanus)
and cabbage (Brassica) (both 2N = 18) produces a sterile first-generation
hybrid with one diploid chromosome set from either parent. Tetraploidization
eventually produces a stable, true-breeding hybrid (Raphanobrassica).
(Unfortunately, the hybrid combines the root of a cabbage with the flower
head of a radish, rather than the desired reverse!)
Text material © 2005 by Steven M. Carr