For QTL analysis of agronomic traits based on cultivation of low and high altitude locations, BC1 F5 181 lines were developed from a cross of Tongil type Gayabyeo and japonica Chhomrong originated from Nepal. Plant materials were grown in both of low altitude area of Milyang, Korea and high altitude area of Khumaltar, Nepal. In QTLs analysis, a total of 42 QTLs were detected in days to flowering, culm length, panicle length, number of panicles/hill, panicle exertion, and spikelet ripening ratio. Although many of the QTLs were coincided between the two locations of Korea and Nepal, several QTLs were revealed as location specific in high altitude area of Khumaltar. Especially, the regions harboring marker RM489-RM14281 on chromo- some 3, RM5642-RM19049 on chromosome 5, and RM2854-RM6696 on chromosome 12 where QTLs were clustered and coincided between the two locations are considered as positive target regions for environmental independent traits. Furthermore, high rate of location specific QTLs such as panicle exertion and spikelet ripening ratio could be considered carefully for understanding the mechanism of cold tolerance based on cultivation of different altitude location.

• Jun Hyeon Cho(Dept. of Functional Crops, NICS, RDA) Corresponding Author
• Hari Krishna Upreti(Agriculture Botany Division, NARC)
• You Cheon Song(Dept. of Functional Crops, NICS, RDA)
• Woon Goo Ha(International Rice Research Institute, Technology Cooperation Bureau, RDA)
• hambhu Prasad Khatiwada(Agriculture Botany Division, NARC)
• Jong He e Lee(Dept. of Functional Crops, NICS, RDA)
• Ji Yoon Lee(Dept. of Functional Crops, NICS, RDA)
• Un Sang Yeo(Dept. of Functional Crops, NICS, RDA)
• Dong Soo Park(Dept. of Functional Crops, NICS, RDA)
• Hang Won Kang(National Institute of Crop Science, RDA)