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Plants 2017, 6(4), 65; doi:10.3390/plants6040065

TRANSPARENT TESTA GLABRA 1-Dependent Regulation of Flavonoid Biosynthesis

Botanical Institute, University of Cologne, Zuelpicher Str 47B, 50674 Cologne, Germany
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Received: 2 November 2017 / Revised: 2 December 2017 / Accepted: 16 December 2017 / Published: 20 December 2017
(This article belongs to the Special Issue Plant Flavonoids)
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Abstract

The flavonoid composition of various tissues throughout plant development is of biological relevance and particular interest for breeding. Arabidopsis thaliana TRANSPARENT TESTA GLABRA 1 (AtTTG1) is an essential regulator of late structural genes in flavonoid biosynthesis. Here, we provide a review of the regulation of the pathway’s core enzymes through AtTTG1-containing R2R3-MYELOBLASTOSIS-basic HELIX-LOOP-HELIX-WD40 repeat (MBW(AtTTG1)) complexes embedded in an evolutionary context. We present a comprehensive collection of A. thaliana ttg1 mutants and AtTTG1 orthologs. A plethora of MBW(AtTTG1) mechanisms in regulating the five major TTG1-dependent traits is highlighted. View Full-Text
Keywords: Arabidopsis thaliana; TRANSPARENT TESTA GLABRA 1; TTG1; WD40; flavonoid biosynthesis; MBW complex; MYB; bHLH Arabidopsis thaliana; TRANSPARENT TESTA GLABRA 1; TTG1; WD40; flavonoid biosynthesis; MBW complex; MYB; bHLH
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Zhang, B.; Schrader, A. TRANSPARENT TESTA GLABRA 1-Dependent Regulation of Flavonoid Biosynthesis. Plants 2017, 6, 65.

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