IDENTIFICATION OF A SET OF RFLP PROBES FOR SUBSPECIES DIFFERENTIATION IN ORYZA-SATIVA L

被引:26
作者
QIAN, HR [1 ]
ZHUANG, JY [1 ]
LIN, HX [1 ]
LU, J [1 ]
ZHENG, KL [1 ]
机构
[1] CHINA NATL RICE RES INST,DEPT BIOTECHNOL,HANGZHOU 310006,PEOPLES R CHINA
关键词
RESTRICTION FRAGMENT LENGTH POLYMORPHISM (RFLP); PROBE SCREENING; SUBSPECIES DIFFERENTIATION; WIDE COMPATIBILITY VARIETY; ORYZA SATIVA L;
D O I
10.1007/BF00222026
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Sixty-eight indica-japonica tester-differentiating RFLP probes were tested in seven indica and seven japonica varieties of rice (Orysa sativa L.) with four enzyme digestions (EcoRI, EcoRV, HindIII and DraI). Twenty-one DNA clones were isolated as indica-japonica subspecies-differentiating probes. A set of 13 probes was established as core probes for subspecies differentiation and a pooled blotting analysis was carried out to facilitate the application of RFLP in rice genetics and breeding practice. A dendrogram of 12 wide-compatibility varieties was constructed based on RFLPs detected by 13 core probes with single enzyme digestions. It was speculated that most RFLPs of indica-japonica differentiating probes were generated by insertions/deletions, which may be of great significance for the origin and differentiation of subspecies in Oryza sativa L.
引用
收藏
页码:878 / 884
页数:7
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