“…Polymorphisms at the DNA level have been used in many investigations to determine the genetic diversity in plums. Previous molecular studies on plums using RAPD markers revealed a wide genetic polymorphism among different plum accessions ranging from 20 to 98% (Gregor et al, 1994;Ortiz et al, 1997;Bellini et al, 1998;Shimada et al, 1999;Lisek et al, 2007;Liu et al, 2007;Hend et al, 2009). This wide variation is normal because plums are very complex groups including diploid, tetraploid and hexaploid species and because flower biology also differs in different plum groups (Ercisli, 2004).…”