Diversity of Mirabilis jalapa L. based on isozymic band of peroxidase

Mirabilis jalapa L. is a gardening plant which growth easily planted because their beautiful color and flower’s ornaments. The aims of the research were to find out the variation of isozyme band of peroxidase (PER) and their close relationship of M. jalapa cultivated based on their different flower’s color. The method used in this study was polyacrilamide gel electrophoresis. The collecting data were analyzed using calculation of association coefficient (Gower’s coefficient) with cluster analysis used for similarities of their arithmetic. The results showed that in M. jalapa were found 21 variation of isozyme bands of peroxidase (PER) from 8 Rf of 0.04; 0.08; 0.20; 0.28; 0.36; 0.48; 0,60; and 0.64. M. jalapa with white and red nodes flower’s (BIN) and white and red line flower’s (GAR) have the nearest genetic relationship with similarity index of 0.76. M. jalapa with white and red nodes flower’s (BIN) and white and red line flower’s (GAR) joined with red flower’s (MER) on 0.73 of similarity index then joined with white flower’s (PUT) on 0.64 of similarity index and yellow flower’s (KUN) on 0.49 of similarity index. At least, M. jalapa with orange flower’s (ORA) joined with M. jalapa cultivars on 0.41 of similarity index.