A moderately repetitive DNA sequence named RRD3 from rice (Oryza sativa L.) was isolated by the method of DNA renaturation kinetics and sequenced.

• 水稻RRD3序列是通过复性动力学实验从水稻基因组中克隆的一个中度重复序列，实验证明它在原核生物大肠杆菌E.；coli、哺乳动物CHO细胞、水稻愈伤组织和烟草转化苗中都具有启动子活性。