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Journal ArticleDOI

Cloning and expression of cytochrome p450 genes controlling flower colour

TLDR
Restriction-fragment length polymorphism mapping and complementation of mutant petunia lines showed that the flavonoid 3',5'-hydroxylase genes correspond to the genetic loci Hfl and Hf2.
Abstract
BLUE and violet flowers generally contain derivatives of delphinidin; red and pink flowers generally contain derivatives of cyanidin or pelargonidin1.Differences in hydroxylation patterns of these three major classes of anthocyanidins are controlled by the cytochrome P450 enzymes flavonoid 3'-hydroxylase and flavonoid 3',5'-hydroxylase. Here we report on the isolation of complementary DNA clones of two different flavonoid 3',5'-hydroxylase genes that are expressed in petunia flowers. Restriction-fragment length polymorphism mapping and complementation of mutant petunia lines showed that the flavonoid 3',5'-hydroxylase genes correspond to the genetic loci Hfl and Hf2.

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Journal ArticleDOI

Flavonoid Biosynthesis. A Colorful Model for Genetics, Biochemistry, Cell Biology, and Biotechnology

TL;DR: The role of flavonoids as the major red, blue, and purple pigments in plants has gained these secondary products a great deal of attention over the years.
Journal ArticleDOI

Genetics and Biochemistry of Anthocyanin Biosynthesis

TL;DR: The characterization of genetically defined mutations has enabled the order of many reactions in anthocyanin synthesis and their modification to be elucidated, and the more recent developments in gene isolation and characterization are concentrated.

Genetics and Biochemistry of Ant hocyanin Biosynthesis

TL;DR: In this paper, the authors focus on the more recent developments in gene isolation and characterization of anthocyanin biosynthetic genes and study their interactions and regulation in different species of maize, snapdragon, and petunia.
Journal ArticleDOI

Natural Pigments: Carotenoids, Anthocyanins, and Betalains — Characteristics, Biosynthesis, Processing, and Stability

TL;DR: This review presents the basic information about pigments focusing attention on the natural ones; it emphasizes the principal plant pigments: carotenoids, anthocyanins, and betalains.
Journal ArticleDOI

Cytochromes P450: a success story

TL;DR: Cytochrome P450 proteins, named for the absorption band at 450 nm of their carbon-monoxide-bound form, are one of the largest superfamilies of enzyme proteins.
References
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Journal ArticleDOI

Transformation of intact yeast cells treated with alkali cations.

TL;DR: The transformation efficiency with Cs+ or Li+ was comparable with that of conventional protoplast methods for a plasmid containing ars1, although not for plasmids containing a 2 microns origin replication.
Journal ArticleDOI

A simple and general method for transferring genes into plants

TL;DR: This method for producing transformed plants combines gene transfer, plant regeneration, and effective selection for transformants into a single process and should be applicable to plant species that can be infected by Agrobacterium and regenerated from leaf explants.
Journal ArticleDOI

A DNA Transformation–Competent Arabidopsis Genomic Library in Agrobacterium

TL;DR: This DNA transformation competent genomic library should expedite gene isolation, by gene rescue, in multicel–lular organisms like Arabidopsis, as with the unicellular organisms Escherichia coli and Saccharomyces cerevisiae.
Journal ArticleDOI

The P450 superfamily: update on new sequences, gene mapping, and recommended nomenclature.

TL;DR: A modest revision of the initially proposed and updated and updated nomenclature system based on evolution of the superfamily P450 is proposed.
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