Abstract
The fruit epidermal structure of the cucumber (Cucumls satlvus L.) was examined cytologically and the two anatomical classes observed corresponded to two different genotypes. One type consisted of a layer of epidermal cells arranged perpendicular to the fruit surface (palisade type), while the other consisted of square or flat cells (flat type). Crosses between palisade type and flat type parents generated palisade F1 plants. The F2 and backcross generations indicated good agreement to 3:1 and 1:1 segregation of palisade type: flat type, suggesting monogenic inheritance, with dominance for palisade epidermis (Pe). Strong linkage was detected between Pe and the genes u for uniform fruit color, Tu for warty fruits, and D for dull fruit. Linkages also were detected between Pe and the genes te for tender fruit epidermis, pm for powdery mildew resistance and ss for small spine size.
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