Abstract
Abstract The mode of inheritance of carboxylation efficiency (CE) of tomato (Lycopersicon esculentum Mill.) was studied using parents, F1, BCP1, BCP2, and F2 progeny from the crosses Ottawa 67 (067) × VF 145-7879 (7879) and 067 × LA959. The inheritance of chlorophyll content was studied with the cross 067 × LA959. The difference in CE between 067 and 7879 is controlled by a single gene with high CE apparently conditioned by the high pigment (hp) gene from 067. The differences in CE and chlorophyll content between 067 and LA959 are under digenic control. The differences appear to be controlled by hp from 067 and lurida (lur) from LA959. A causal relationship between chlorophyll content and CE may not exist, but the evidence presented indicates the two characteristics are closely related.
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