1998 Fiscal Year Final Research Report Summary
Studies on the origin of silkworm.Bombyx mori.and an evaluation of its genetic differentiation
| Project/Area Number |
09041136
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | Field Research |
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| Research Field |
蚕糸・昆虫利用学
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| Research Institution | Tokyo University of Agriculture and Technology (1998)
Hokkaido University (1997) |
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Principal Investigator |
OSHIKI Toshikazu Univ.of Tokyo, Graduate school of Agricultural and Life Sciences, Prof, 農学部, 教授 (80015081)
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| Co-Investigator(Kenkyū-buntansha) |
RAO P.R.M. CSRTI (India) .Rabo.of Polyvol., Joint Director, 多化性蚕研, 室長
鐘 伯雄 中国淅江大学, 蚕学系, 副教授
BANNO Yutaka KyusyuUniv., Fac.of Agr., Assoc.Prof., 農学部, 助教授 (50192711)
MURAKAMI Masakatsu Inst.of Statist.& Mathemat., Prof., 数理研究所・地域統計, 教授 (00000216)
KOBAYASHI Masahiko Univ.of Tokyo Dept.of Agr., Fac.of Agr., Prof., 大学院・農学生命科学研究科, 教授 (60162020)
ZHONG Bo-Xong ZhejiangUniv. (China) , Dept.of Seric., Assoc.Prof.
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| Project Period (FY) |
1997 – 1998
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| Keywords | silkworm / sericulture / Bombyx mori / cocoon shape / genetic analysis / strain / Bombyx mandaring / cocoon production |
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| Research Abstract |
Survey and genetical examinations on the domestic silkworm, Bombyx mori, and the wild silkworm, Bombyx mandarina, were carried out in some countries put in plactice moriculture, sericulture and silk industry.
We visited several institutions, universities, companies and farmhouses in Thailand and India, and we confirmed many tropical strains of polyvoltine silkworm, which had properties of resistances to high temperature and to pebrine disease. Many varieties of these strains were not recognized in any other countries. These strains should be thought valuable property in sericultural science. In China, many strains and many races of the domestic silkworm had been preservated at sericultural institutions and universities in like manner of Japan. In Uzbekistan, senicultural production were held only one season a year under strict weather conditions. The keeping strains of silkworm were only univoltine. The silkworm strains of economic valueless such as mutants were not preserved in Uzbekistan. In Brasil, the technique of cocoon production was imported from Italy and it started in 1927. However, the silkworm of Italian strain could not detect. In Korea where sericulture has been over, the silkworms of univoltine and trimolter were preserved yet.
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