Gene regulation networks generate diverse pigmentation patterns in plants

Plant Signaling & Behavior
Nick W AlbertKathy E Schwinn

Abstract

The diversity of pigmentation patterns observed in plants occurs due to the spatial distribution and accumulation of colored compounds, which may also be associated with structural changes to the tissue. Anthocyanins are flavonoids that provide red/purple/blue coloration to plants, often forming complex patterns such as spots, stripes, and vein-associated pigmentation, particularly in flowers. These patterns are determined by the activity of MYB-bHLH-WDR (MBW) transcription factor complexes, which activate the anthocyanin biosynthesis genes, resulting in anthocyanin pigment accumulation. Recently, we established that the MBW complex controlling anthocyanin synthesis acts within a gene regulation network that is conserved within at least the Eudicots. This network involves hierarchy, reinforcement, and feedback mechanisms that allow for stringent and responsive regulation of the anthocyanin biosynthesis genes. The gene network and mobile nature of the WDR and R3-MYB proteins provide exciting new opportunities to explore the basis of pigmentation patterning, and to investigate the evolutionary history of the MBW components in land plants.

References

Jan 13, 2015·Trends in Plant Science·Wenjia XuLoïc Lepiniec
Oct 9, 2016·Plant Science : an International Journal of Experimental Plant Biology·Trinh Ngoc AiChang Kil Kim
Oct 21, 2014·The New Phytologist·Nick W AlbertWarren M Williams
Dec 27, 2016·Frontiers in Plant Science·Kathy E SchwinnKevin M Davies
Jul 5, 2018·Frontiers in Plant Science·Sara ColaneroSilvia Gonzali

Citations

Jul 21, 2004·Current Opinion in Genetics & Development·Martina Pesch, Martin Hülskamp
Feb 15, 2005·Trends in Plant Science·Nicola A Ramsay, Beverley J Glover
May 11, 2005·Trends in Plant Science·Ronald KoesFrancesca Quattrocchio
Dec 5, 2006·Current Opinion in Plant Biology·Cathie R Martin, Beverley J Glover
Nov 27, 2007·The Plant Journal : for Cell and Molecular Biology·Antonio GonzalezAlan M Lloyd
Mar 30, 2011·The Plant Journal : for Cell and Molecular Biology·Antje FellerErich Grotewold
Nov 29, 2012·Molecular Biology and Evolution·Samuel F BrockingtonBeverley J Glover
Jan 9, 2013·The New Phytologist·Beverley J GloverSamuel F Brockington

Related Concepts

Patterns
Genes
Regulation of Biological Process
Entire Vein
Pigment Accumulation
Complex (molecular entity)
Spatial Distribution
Anthocyanin-containing Compound Biosynthetic Process
Flavonoids
Structure

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