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.

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