Gene map of tomato (Solanum)
(2n = 24)
occur in the wild in South America, and their fruits have been
bred in many different decorative varietal forms, the
cultivation and production of which are commercially valuable.
As in Garden Peas, the gene loci responsible for these traits
have been mapped to chromosomes.
A major consideration in commercial varieties bred for
ketchup, sauces, and pastes is solids content:
increase of 1% solids is worth multiple millions of dollars
every year. Experimental crossbreeding of wild relatives to
conventional stocks is an active area of research.
Figure ©2002 by Griffiths et al.; all text material ©2016 by
Steven M. Carr