Polymorphism of sorbitol dehydrogenase and 6‐phosphogluconate dehydrogenase in swine (Sus scrofa)

Abstract

Summary More than 300 kidneys from the local bacon factory were investigated and it was shown that the enzyme sorbitol dehydrogenase (EC 1.1.1.14) exhibits a genetically determined polymorphism. While homozygous individuals yield only a single enzyme band after starch gel electrophoresis, heterozygotes show multiple bands. On the same material also 6‐phosphogluconate dehydrogenase (EC 1.1.1.44) and lactate dehydrogenase were investigated, the former showed also clear genetic variants while the latter appeared only in one form. Gene frequencies for different breeds and types of pigs are given and the results discussed.