GENETIC-ANALYSIS OF GLUTAMATE-OXALOACETATE TRANSAMINASE ISOZYMES IN WILD-SPECIES IN SECTION CEPA OF ALLIUM

Glutamate-oxaloacetate transaminase (GOT) was studied to establish the genetic system of GOT isozymes in the wild species in section Cepa of Allium. From the results of isozyme analyses using two cultivated spe cies (A. fistutlosum, A. cepa Aggregatum group), three wild species (A . vavilovii, A. oschaninii, A. galanthum), one hybrid between A. fistu losum and A. cepa Aggregatum group and six hybrids between the cultiv ated and wild species, it was revealed that 1) the three wild species possessed the two GOT gene loci (Got-1, Got-2) in common with A. fistu losum and A. cepa, 2) two alleles were detected at Got-1 and three all eles at Got-2, 3) A. fistulosum possessed Got-1(F) and Got-2(F) and A. cepa Aggregatum group had Got-1(A) and Gat-2(A), and 4) A, vavilovii possessed Got-1(A) and Got-2(A); A. oschaninii had Got-1(A) and Got-2( F); A. galanthum had Got-1(A) and Got-2(G). These con elusions indicat e that the GOT isozyme genes are useful genetic markers in the wild sp ecies in section Cepa.