SSRs identified coding regions were defined by mapping reference genes of Melon to KM and SW3 assemblies with BLAT (The BLAST-Like Alignment Tool) [24]. To
remove mapping false positives, the genic regions in the assemblies were defined by 80 % of the gene mapping coverage. To design primer sets for targeted SSRs, we used the primer3_core software with options as follows: optimum length of primers = 20; optimum melting temperature = 60 C; and PCR product size = 200–500. The primers designed for SSR loci were named CMMS (C.melo makuwa SSR). The overall pipeline was controlled with scripts developed inhouse in Python (ver. 2.7) using the BioPython modules (ver. 1.59)