THE ROLE OF CHROMOSOME 2 IN THE GENETICS OF MATURATION TIME IN THE TOMATO

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Abstract
Time to maturity was measured in days and genetically analyzed in terms of marker genes of chromosome 2. Total time to maturity was divided into 3 components: anthesis, fruit set, and ripe fruit. Evidence was presented which supported a large degree of dominance of the genes for earliness and that these maturity genes were predominantly on the 2nd chromosome. This chromosome is divided into 2 major regions of influence separated by the marker gene for ovate fruit. The 2 regions interacted differently in the components analyzed and with other noted differences, suggested a degree of independence between the components. For all components, 1 region of the chromosome was more influential than the other.

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