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KMID : 1041219760180020101
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Journal of Sericultural and Entomological Science
1976 Volume.18 No. 2 p.101 ~ p.105
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The Studies on Hydrolysis of the Silk Fibroin by Proteolytic Enzyme, Bombyx mori III. Variations of the Fibroin Hydrolysis by Different Silkworm Varieties
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Lee Yong-Woo
Choe Byong-Hee
Song Ki-Eon
Nahm Joong-Hee
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Abstract
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The study was carried out to investigate the variations in the fibroin hydrolysis of leading silkworm varieties in Korea, and the relationship between the fibroin hydrolysis of the silkworm varieties with some characteristics and silk morphological property. The results obtained are summarized as follows: 1) The fibroin hydrolyzing ratio of both parent silkworm cocoons was reduced in the Fhybrids. 2) A positive corelation (r=＋0.86) was approved between the mid-parent value and the Fhybrid in the fibroin hydrolysis. 3) It was disclosed that the fibroin hydrolyzing ratio of Jam 103Jam 104 was the lowest among the leading silkworm Fhybrids. 4) The fibroin hydrolysis was affected by the silk morphological property, showing a positive corelation between the size of cocoon filament and the fibroin hydrolyzing ratio. 5) It was thought that the determination of the fibroin hydrolyzing ratio was useful as a marker for the selection of its related economical characters in silkworm breeding, because the fibroin hydrolysis of parents silkworm cocoons was heritable in their Fhybrids.
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