show Abstracthide AbstractThe present study examined the effects of 0, 10, 100, and 1000 µg/L potassium perchlorate exposure on PGCs of medaka embryos and the expression pattern of genes that maintain PGCs integrity and epigenetic processes. Overall design: To investigate the effect of potassium perchlorate on medaka development , fertilized eggs were exposed to 0, 10, 100, and 1000 µg/L of potassium perchlorate for 15 days and developmental defects were examined. Three biological replicates for each treatment