在水稻育种工作中,深入了解水稻基因组的结构与功能,对于改进现有育种手段、引进新的育种思想和发展育种技术是十分重要的。本文应用复性动力学技术研究了水稻的基因组结构。已知高等生物的基因组组成存在单考贝顺序和重复顺序。重复顺序部分又分为回折部分(反向重复顺序)高度重复顺序和中度重复顺序。植物基因组的重复顺序达50～90％。其余为单考贝顺序。编码蛋白质结构的基因大都为单考贝,但单考贝顺序并 In rice breeding, a deep understanding of the structure and function of the rice genome is very important for improving existing breeding methods, introducing new breeding ideas and developing breeding techniques. In this paper, the genomic structure of rice was studied using renaturation kinetics. It is known that higher organisms have single koji sequencing and repetitive sequences in the genomic composition. Repeated sequence part is divided into the fold part (reverse repeat order) highly repeat order and moderate repeat order. Plant genome repeat sequence of 50 to 90%. The rest is a single test order. Most of the genes that encode the protein structure are single kopecks, but single kopecks are sequenced