An Analysis of Peroxidase Isozyme in the Long-keeping Tomat o Mutant Lok

In order to approach the sibship of the long keeping tomato lok, a self bred l ine 97 114, two varieties of ssp.cultum Brezh, two varieties of ssp.su bspontaneum Brezh, and a var. eupimpinellifolium variety of ssp. Plimpinellifoli um Brezh were studied, samplings were taken at different developmental stages. It was proved that the long keeping tomato lok was a mutant of cultivated sub species and the relationship with wild subspecies was far away. Moreover, at on e of 8 developmental stages, the zymogram patteras of lok was different from tha t of the line 97 114. This could show the result of gene mutation.