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KMID : 1041219930350020093
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Journal of Sericultural and Entomological Science
1993 Volume.35 No. 2 p.93 ~ p.99
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Phenotypic Expression of the Non Molting Gene in The"Non-molting of Nho"of Bombyx mori
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Abstract
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Studies were carried out to investigate physiological and biochemical analysis of recessive lethal mutant "nmn and to observe the cuticle formation and dermal gland. All nmn homozygous larvae continued to eat a few mulberry leaves, and died without entering into molt. In case of artificial hatching, eggs had a higher nmn individual segregation ratio than in hibernating eggs. The percentage of nmn individuals with the hatching days was alike during 3 days period. As a result of histological observation, nmn mutants dermal gland was different from normal dermal gland in form and size. Normal was formed new cuticle in the middle of the molting, but not in nmn mutant. Total protein content in haemolymph of the normal larva was more than that of nmn smutant and there was a difference between normal and nmn mutant protein components.
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