In order to obtain information about gene markers, crosses were made between contrasting lines in relation to the pigmentation of hipocotyl, base of the flower wing and seed coat. Paternal, F1, F2 generations and backcross to recessive female parent were cultivated in the greenhouse. The inheritance was monogenic. The presence of anthocyanin pigment was dominant in relation to the absence. There was a pleiotropic effect among pigmented seed, purple stain at the base of the flower wing and purple hipocotyl. It was possible to separate five classes of pigmentation intensity among the plants with colored seeds, indicating the possibility of occurrence of polymeria in the F2 generation. A symbol Aa - was suggested for the presence and aa aa - for the absence of anthocyanin pigment to discriminate the locus.
sunn-hemp; inheritance of anthocyanin pigmentation; pleiotropy