RFLP Marker Linked to Gene for Sucrose Accumulation in Tomato Fruits

(Picture of DNA gel electrophoresis. L. esculentum plants have an RFLP marker band that migrated farther than the RFLP marker band from the L. chmielewskii plant. F2 progeny from these parents inherited either one or both of these RFLP markers. )

E = L. esculentum parent

C = L. chmielewskii parent

genomic Southern hybridization of sexual progeny with probe TG102

S = sucrose accumulation in fruits

Progeny that inherited only the "C marker" accumulate sucrose

(recessive trait), while heterozygotes and plants that inherited only the

"E marker" accumulate hexose in their fruits.

image compliments of Roger Chetelet, TGC, UC Davis

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