[1]Zhejiang Key Laboratory of Super Rice Research/State Key Laboratory of Rice Biology/China National Rice Research Institute Hangzhou 310006 P.R.China;
[2]Nanchong Academy of Agricultural Sciences Nanchong 637000 P.R. China;
[3]National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural University Wuhan 430070 P.R.China;
[4]Institute of Crop Breeding and Cultivation Shanghai Academy of Agricultural Sciences Shanghai 201403 P.R.China;
rice (Oryza sativa L.); quantitative trait loci; grain size; grain weight; residual heterozygote;