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Molecules 2014, 19(12), 20266-20279;

The Regulation of Anthocyanin Synthesis in the Wheat Pericarp

Institute of Cytology and Genetics, Siberian Branch, Russian Academy of Sciences, Lavrentjeva ave. 10, Novosibirsk 630090, Russia
Novosibirsk State University, Pirogova St. 2, Novosibirsk 630090, Russia
Author to whom correspondence should be addressed.
Received: 30 September 2014 / Revised: 24 November 2014 / Accepted: 27 November 2014 / Published: 4 December 2014
(This article belongs to the Special Issue Anthocyanins)
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Bread wheat producing grain in which the pericarp is purple is considered to be a useful source of dietary anthocyanins. The trait is under the control of the Pp-1 homoealleles (mapping to each of the group 7 chromosomes) and Pp3 (on chromosome 2A). Here, TaMyc1 was identified as a likely candidate for Pp3. The gene encodes a MYC-like transcription factor. In genotypes carrying the dominant Pp3 allele, TaMyc1 was strongly transcribed in the pericarp and, although at a lower level, also in the coleoptile, culm and leaf. The gene was located to chromosome 2A. Three further copies were identified, one mapping to the same chromosome arm as TaMyc1 and the other two mapping to the two other group 2 chromosomes; however none of these extra copies were transcribed in the pericarp. Analysis of the effect of the presence of combinations of Pp3 and Pp-1 genotype on the transcription behavior of TaMyc1 showed that the dominant allele Pp-D1 suppressed the transcription of TaMyc1. View Full-Text
Keywords: Triticum aestivum; purple grain pericarp; candidate gene; regulatory gene; nucleotide sequence; transcription Triticum aestivum; purple grain pericarp; candidate gene; regulatory gene; nucleotide sequence; transcription

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Shoeva, O.Y.; Gordeeva, E.I.; Khlestkina, E.K. The Regulation of Anthocyanin Synthesis in the Wheat Pericarp. Molecules 2014, 19, 20266-20279.

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