Nitrogen transporter and assimilation genes exhibit developmental stage-selective expression in maize (Zea mays L.) associated with distinct cis-acting promoter motifs
1.Department of Plant Agriculture; University of Guelph; Guelph, ON Canada;2.Department of Molecular and Cellular Biology; University of Guelph; Guelph, ON Canada;3.Syngenta Biotechnology Inc.; Research Triangle Park; Greensboro, NC USA