用ＰｓｔＩ酶切水稻总ＤＮＡ，制作了单拷贝随机探针。用这些探针以及水稻基因组计划提供的不同来源的分子探针进行ＲＦＬＰ分析，获得籼粳特异性以及与某些重要农艺性状密切相关的育种特异性探针。分子标记转变以及相关分析表明，分子标记育种是一种十分有效的育种新技术 The total DNA of rice was digested with PstI and a single copy random probe was made. Using these probes and molecular probes from different sources provided by the Rice Genome Project, RFLP analysis was performed to obtain breeding-specific probes that are indica-japonica-specific and closely related to certain important agronomic traits. Molecular marker changes and correlation analysis show that molecular marker breeding is a very effective breeding technology