Table of Contents
Developmental Biology Journal
Volume 2013 (2013), Article ID 632524, 12 pages
http://dx.doi.org/10.1155/2013/632524
Review Article

The Dormancy Marker DRM1/ARP Associated with Dormancy but a Broader Role In Planta

1The New Zealand Institute for Plant & Food Research Limited, Mt Albert, Private Bag 92169, Auckland Mail Centre, Auckland 1142, New Zealand
2Plant Molecular Sciences, School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland Mail Centre, Auckland 1142, New Zealand

Received 28 February 2013; Revised 15 May 2013; Accepted 16 May 2013

Academic Editor: M. Pisano

Copyright © 2013 Georgina M. Rae et al. 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.

Abstract

Plants must carefully regulate their development in order to survive a wide range of conditions. Of particular importance to this is dormancy release, deciding when to grow and when not to, given these varying conditions. In order to better understand the growth release mechanism of dormant tissue at the molecular and physiological levels, molecular markers can be used. One gene family that has a long association with dormancy, which is routinely used as a marker for dormancy release, is DRM1/ARP (dormancy-associated gene-1/auxin-repressed protein). This plant-specific gene family has high sequence identity at the protein level throughout several plant species, but its function in planta remains undetermined. This review brings together and critically analyzes findings on the DRM1/ARP family from a number of species. We focus on the relevance of this gene as a molecular marker for dormancy, raising questions of what its role might actually be in the plant.