Drought-responsive genes expressed predominantly in root tissues are enriched with homotypic cis-regulatory clusters in promoters of major cereal crops
Muhammad Ramzan Khan, Imran Khan, Zahra Ibrar, Jens Léon, Ali Ahmed Naz
The Crop Journal . 2017, (3): 195 -206 .  DOI: 10.1016/j.cj.2016.10.001