Acrylamide gel electrophoresis of several isozyme systems in 27 Allium species and their use in numerical taxonomy

A. H. Abdul Wahab

Abstract

Polyacrylamide gel electrophoresis of six leaf isozyme systems in 27 Allium species revealed 75 electrophoretic bands in total which included 23 esterase, 9 acid phosphatase, 15 peroxidase, 10 malate dehydrogenase and 16 polyphenol oxidase bands and 2 broad catalase bands. The isozyme electrophoretic data were used in numerical taxonomic analysis using the CLUSTAN programme. Results of the cluster and principal component analysis indicated fairly good relationships among the species. The analyses broadly divided the taxa into two sections. Allium tibeticum, A. caeruleum and A. azureum tentatively placed in section Allium were shown by the principal component analysis to be unrelated to either section Cepa or section Allium.

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