【摘 要】
：
A population of 152 recombinant inbred lines (RIIs) derived from a cross between CT9993, a japonica rice with hard consistency (GC) and Khoa Dawk Mali105 (KDML
【机 构】
：
Laboratory of Quantitative Genetics, Agricultural College, Yangzhou University, Yangzhou 225009;Rice
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A population of 152 recombinant inbred lines (RIIs) derived from a cross between CT9993, a japonica rice with hard consistency (GC) and Khoa Dawk Mali105 (KDML 105 ), a famous Thai rice(Oryza sativa L. ) with medium GC, was used for GC quantitative trait loci (QTLs) analysis. Three linkage maps were constructed with RFLP, AFLP and microsatellite (SSLP) markers. The first one consists of 83 RFLP markers with 17.53 cM of an average distance between markers. The second one consists of 83 RFLP and 69 AFLP markers with 13.22 cM average distance between markers and the third one consists of 83 RFLP, 69 AFLP and 15 SSLP markers, and has an average distance of 12.98 cM between markers. Based on these three maps, QTLs conferring GC were analyzed. The results show that GC is mainly controlled by two linked loci,which are located at the two flanks of RFLP marker R2170 on chromosome 3. The distance between the two linked QTLs is 25 cM and the two QTLs were determined by a LOD scores larger than 16.0. The number of minor QTIs controlling GC varies from 4- 9 in the three different linkage maps.
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