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- Author or Editor: A. Baset Almouslem x
Abstract
The pink flowers of the golden-leaved (aurea) zonal pelargonium (Pelargonium ×hortorum Bailey ‘Verona’) have small red spots on the upper epidermis. The spots are caused by an intensification of pigments at the base of trichomes and in adjacent, surrounding epidermal cells. Trichomes are found on petals of other colors, but without spots. Genetic analysis shows that ‘Verona’ is heterozygous for the red-spotted trichome trait, which is determined by a gene, Rst/rst, dominant over red spotless. The red-spotted gene segregates independently of the aurea gene, Aur+/Aur, which conditions golden leaf color.
in
HortScience