Analysis of characters related with color of increased root in a crossbreeding of two clones of Ipomoea batatas L. (Lam.)
HORTICULTURE | Arizio, C.M. - Manifesto, M.M. - MartÃ, H.R.
Tags: Transgressive heredity, Anthocyanins, Carotenes, Maternal heredity, Hue, Croma, Luminosity
Color is a major factor in consumer's (consumer's preference) buying choices, and pigments responsible for color have functional properties. The aim of this work were to determine the existence of a maternal effect, and whether there is association between skin and flesh color of the sweet potato (Ipomoea batatas L. Lam) tuberous root. There were genotypes with higher and lower values of color than their progenitors. The direction of the crosses did not affect color variables, what suggests that there was not a maternal effect. Skin with anthocyanic pigments was incompletely dominant over white/cream skin, meanwhile white/cream flesh was incompletely dominant over orange flesh. Flesh and skin color were associated, being "skin with anthocyanins with white/cream flesh" the most frequent combination and "white/cream with orange skin or flesh" the less frequent. This work is part of the development of a linkage map which will allow the relative localization of reported genes involved in pigment synthesis in tuberous roots of sweetpotatoes.