Isozyme polymorphisms of mango cultivars in Thailand.
Eiadthong W., Yonemori K., Sugiura A., Utsunomiya N., Subhadrabandhu S.
Author Affiliation: Laboratory of Pomology, Graduate School of Faculty of Agriculture, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.
Thai Journal of Agricultural Science 31 : 555-568
Abstract : Using starch gel electrophoresis, leaf extracts of 58 mango (Mangifera indica) cultivars were analysed for variation of isocitrate dehydrogenase (IDH, EC 1.1.1.42), phosphoglucose isomerase [glucose-6-phosphate isomerase] (PGI, EC 5.3.1.9) and alcohol dehydrogenase (ADH, EC 1.1.1.1 isoenzymes). Polymorphism was found in all enzyme systems examined and intracultivar variation of the same cultivar name collected at different locations were confirmed in banding patterns. No correlation between the polyembryonic and monoembryonic groups was found. Banding patterns of the 3 enzyme systems allowed classification of Thai cultivars into 14 groups. Nam Dok Mai, Khieo Sawoei, Falan Nong Saeng, Arumanis, Kalon Thong, Edward groups consisted of 13, 11, 10, 8, 5, 2 and 2 cultivars, respectively. One cultivar was identified for Carabao, Davis Haden, Haden, Lippens, Pope, Talubnak and Zill groups, respectively.