Interactions of organelle genomes are a well-documented fact. Interac-tion can take the form of metabolite and energy exchange, co-production of enzyme subunits, and co-production of membrane structural and organizational components (Wallace, 1982). Nucleo-cytoplasmic interaction also has been documented for various traits affecting vegetative and harvest indices (Rob-ertson and Frey, 1984), cytoplasmic male sterility (Levings, 1983), and other agronomic characters (Harvey et al., 1972; Kihara, 1982).
Shoemaker, R. C. and Palmer, R. G.
"Research Notes : United States : A possible interaction between cyt-Y3 and y20-k2,"
Soybean Genetics Newsletter: Vol. 11
, Article 41.
Available at: http://lib.dr.iastate.edu/soybeangenetics/vol11/iss1/41