Determination of genetic diversity among Cumra melon genotypes by ISSR markers

The present study aimed to determine genetic relationships among 32 melon genotypes collected from Cumra-Konya by molecular markers. Thirty-six polymorphic ISSR markers obtained from 10 primers were used to define the genetic similarity among the melon genotypes by dendrograms or two and three dimensional scaling obtained from Simple Matching distance matrix. The computer program POPGENE was also used to calculate the statistical measures of genetic variation (Nei's gene diversity (H), Shannon's information index (I), and percentage of polymorphic loci). Based on the molecular Simple Matching distance matrix, the most similar genotypes were C15-C22 followed by C23-C26. Of all evaluated genotypes, the most distinct one was C28. The genetic variation estimates for melon genotypes in the present study were high (H = 0.27, I = 0.43 and 100 % polym).