Preharvest sprouting resistance (PHS) causes the reduction of grain yield and also affects the quality of grains, resulting significant economic losses. PHS and its related traits were evaluated and observed in wide range among the 137 diverse rice accessions. To mine the associated signals for PHS resistance, genome wide association study (GWAS) was performed using phenotype data and whole genome resequencing data of 137 diverse rice accessions. This study not only could detect the previously identified dormancy and PHS associated genes but also explore the new candidate genes associated with the PHS and related traits. An example of them is seed dormancy 4 (Sdr4) gene which was found to be associated with germination % at day 14 (D14). This study provided the potential associated candidate genes which might be very useful to improve the PHS resistance in future rice breeding.

• Aye Aye Khaing(Department of Plant Resources, College of Industrial Sciences, Kongju National University)
• Min-Young Yoon(Department of Plant Resources, College of Industrial Sciences, Kongju National University)
• Byung-Kook Yun(Department of Industrial & Systems Engineering, Kongju National University)
• Tae-Sung Kim(Department of Plant Resources, College of Industrial Sciences, Kongju National University)
• Chang-Yong Lee(Department of Industrial & Systems Engineering, Kongju National University)
• Yong-Jin Park(Department of Plant Resources, College of Industrial Sciences, Kongju National University, Legume Bio-Resource Center of Green Manure (LBRCGM), Kongju National University) Corresponding Author