DNA extracted from Jatropha curcas callus induced in different hormonal combinations was used for RAPD analysis with 38 oligonucleotide primers from Operon Technologies Inc. (Almeda CA, USA). Reactions without DNA were used as negative controls. Each 20μl reaction volume contained about nd rd 50 ng of template DNA, 1X PCR Buffer (10mM Tris HCl pH 8.3; 50mM KCl), 0.2 mM dNTP
Mix, 0.5μM of single primer (Operon Technologies, Inc., Almeda CA, USA), 1 U of Taq DNA polymerase (Sigma Aldrich, USA). Different concentrations (1.5- 3.5mM) of Magnesium chloride (MgCl ) were tried to optimize the reaction