ABSTRACT
Over the years, a large number of promoters from a wide variety of plant species and associated organisms have been isolated and analyzed in detail. Information on these promoters can be readily accessed through several publicly available databases (Yamamoto and Obokata, 2008). These investigative efforts greatly advanced our understanding of the central role of promoters to regulate gene
expression during growth and development and in response to environmental cues in plants. In addition, a number of well-characterized promoters have been widely used in genetic engineering endeavors to direct expression of transgenes conferring novel desirable phenotypes and value-added traits.
