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A gene for flower colour fading in Petunia hybrida

, : A gene for flower colour fading in Petunia hybrida. Tag. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik 61(1): 41-46

Full coloured Petunia hybrida flowers lose their colour and become white if the Fa gene is dominant. This gene is only expressed in mutants homozygous recessive for the pH gene Ph4. It is shown by genetical experiments that the fading is restricted to the 3-rutinosido(p-coumaroyl)-5-glucoside glycosylation pattern of anthocyanins. The 3-glucosides and 3-rutinosides show a weak fading only. Preliminary experiments also indicate that fading causes only a difference in the quantity and not in the quality of anthocyanin.


PMID: 24271372

DOI: 10.1007/BF00261508

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