Abstract

The inheritance of three major anthocyanidins, pelargonidin (Pg), cyanidin (Cy) and delphinidin (Dp), was studied by examining the progenies derived from self- and reciprocal cross-pollinations of lisianthus flowers. A clear phenetic segregation of progenies was observed in which the B-ring hydroxylation during flavonoid synthesis was under regulation completely complementing each other between Pg- and Dp-syntheses. The PgDp-phenotype does not exist and may accompany Cy-synthesis. Based on 782 progenies observed, it seems that multiple alleles control the flavonoid B-ring hydroxylation. Segregation patterns could be explained by the presence of at least four alleles designated HT, HF, HD, and HO in lisianthus flowers, controlling the 3'-; 5'-; 3', 5'-; 3'- and 3', 5'-hydroxylation, respectively.

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