STUDY ON DEGREE OF GENETIC DIFFERENCE AT MAIN PRODUCTIVE CHARCTERS BETWEEN PARENT'S FORMS OF SILKWORM (BOMBYX MORI L) HYBRIDS WITH PARTICIPATION OF GENETICALY SEX-MARKED LINES

摘要

Study for determination of degree of genetic differences between parent's forms of silkworm (Bombyx mori L.) hybrids with participation of sex-marked at eggs and larvae stage lines at main productive characters was carried out. It was established thatgenetic parameter, which characterized the minimal number of genes for distinguishing the of hybrid's parents was varied between one and two for cocoon weight and between two and three for shell weight and filament length character. Changeability of this genetic parameter could be explained with expression of genes which influenced on characters and this expression is determined by gene interaction and different reaction toward environment conditions.