Genetic variation of 9 Aegiceras corniculation populations were investigated using the assay of vertical slab polyacrylamide gel electrophoresis. The concentration of concentrated gel and segregated gel were 2 5% and 7 0%, pH was 6 7 an 8 9, respectively. 13 Loci encoded by 5 enzyme systems were studied. A total of 5 enzymes namely were surveyed: aspartate aminotransferase (AAT, E.C.2.6.1.1 ), alcohol dehydrogenase (ADH, E.C.1.1.1.), esterase(EST, E.C.3.1.1 ), malic enzyme (M E,E.C.1.1.1.40), malate de...