Color in tomato fruits is fundamentally determined by two pairs of hereditary factors. Red flesh (R) is dominant to yellow (r) and yellow epidermis (Y) has been proven dominant over transparent epidermis (y). Both sets of factors follow strict mendelian inheritance. Size of fruit is apparently dependent upon multiple factors, difficult of isolation and affected tremendously by environmental conditions. If such size factors really exist and are carried by the orthodox chromosome mechanism, then it should be possible to prove the existence of genetic linkages between the simple color factors and the more complex size factors. A systematic search for such linkages has been made, and success in finding them has crowned four years of effort.
Proceedings of the Iowa Academy of Science
©1925 Iowa Academy of Science, Inc.
Lindstrom, E. W.
"Genetic Correlations between Fruit Size and Color in the Tomato,"
Proceedings of the Iowa Academy of Science, 32(1), 179-180.
Available at: https://scholarworks.uni.edu/pias/vol32/iss1/27