This study was conducted to identify the genomic regions associated with cold tolerance in rice. An RIL population consisting of 120 lines was developed from a cross between the japonica cultivar, Hwayeongbyeo and the wild rice, Oryza rufipoon Griff. Acc.
Through earlier breeding efforts, portions of the genome of the wild species Oryza grandiglumis (2n=48) have been introgressed into the rice cultivar, Hwaseongbyeo (Oryza sativa spp. japonica). Hwaseongbyeo was used as recurrent parent and O. grandiglumis
Wild rices are an important source of useful genes for resistance to diseases, insect pests, tolerance to abiotic stresses and yield increase. Interspecific hybrids were successfully produced between ten accessions of O. minuta (2n=48, BBCC) and O. sativa