Study on Productivity and Genotype Structure by Several Enzyme Loci of Silkworm(Bombyx mori L.) Parthenoclones Obtained by Thermal and Combined(Low-High Temperature) Method

The purpose of this study was to establish whether there are differences in the productivity of the same silkworm(Bombyx mori L.) parthenoclones, obtained by two different methods-thermal and combined, as well as to study their genotype structure by several enzyme loci. It was established that all individuals of parthenoclones Joana, Joana(${\downarrow}{\uparrow}$), Pohi and Pohi(${\downarrow}{\uparrow}$), are homozygous by the studied esterase and phosphoglucomutase loci, which substantiated the clones' genetic stability. By comparative analysis of some biological and technological properties, it was found that parthenoclone Pohi(${\downarrow}{\uparrow}$) obtained by low-high temperature activation is characterized by higher values of these properties as compared to parthenoclone Pohi obtained by thermal parthenogenesis. Comparing the two methods of inducing ameiotic parthenogenetic development, we would recommend that parthenoclone Joana is sustained by thermal parthenogenesis, and parthenoclone Pohi-by the combined method (low-high temperature).