Abstract

In a genetic study with cultivated diploid potatoes the distribution of anthocyanin to the tuber flesh was found to be controlled by a single dominant allele. The gene symbolPf (pigmented flesh) is proposed. The geneI, which controls the distribution of pigment to the tuber skin, is necessary for the expression ofPf and is closely linked to thePf locus. ThePf gene is a potentially useful genetic marker which does not appear to be associated with any deleterious traits and can be screened for without laboratory equipment.

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