KMID : 1041219850270010031
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Journal of Sericultural and Entomological Science 1985 Volume.27 No. 1 p.31 ~ p.36
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Sexual Differences of Cocoon weight, Cocoon Shell Weight, and Cocoon Shell Percentage in the Sex-limited Silkworm Strains, Bombyx mori L.,
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ì°ßÓÙÓ/Lee, Sang Mong
ÑÑß²ëÞ/ÑÑÌöÙ¥/ì°ßÓù¥/ì°ûÇñº/Kim, Sam Eun/Kim, Kye Myeong/Lee, Sang Poong/Lee, Ho Zoo
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Abstract
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Using sexual differences between female and male as the indication of the degree of the physiological disturbance in the sex¡¤limited larval marking strains or sex-limited egg colour strains, it was investigated whether the physiological disturbance caused by the translocated autosome fragment on the W¡¤sex determination chromosome, have an effect on expression of the three quantitative characters; cocoon weight, cocoon shell weight, and cocoon shell percentage in the female silkworm.
The mean values of the ratios of female to male the above two experimental groups were 127%, 107%, 85%, in cocoon shell weight, and cocoon shell percentage, respectively. On the other hand, those from the three normal strains, namely the basic stock strains, white egg strains, and hybrids were 129% for cocoon weight, 110% for cocoon shell weight, and 85% for cocoon shell percentage, respectively.
From the results, it comes to the conclusion that the translocated autosome fragment on the W¡¤chromosome has no influences on the expression of the quantitative characters of the female silkworm because sexual differences of the sex¡¤limited strains were very similar to those of the three normal strains.
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KEYWORD
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