天蚕の胚発生および休眠進行に伴う卵蛋白質のSDS-電気泳動パターンの変動

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  • 古沢 寿治
    Department of Applied Biology, Faculty of Textile Science, Kyoto Institute of Technology
  • 上田 匡
    Department of Applied Biology, Faculty of Textile Science, Kyoto Institute of Technology
  • 密田 和彦
    Ehime Sericultural Experiment Station

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タイトル別名
  • Changes in SDS-polyacrylamide gel electrophoretic patterns of egg proteins during the embryonic and diapause development of the Japanese oak silkworm, Antheraea yamamai.
  • 天蚕の胚発生および休眠進行に伴う卵蛋白質のSDS-電気泳動パターンの変動〔英文〕
  • テンサン ノ ハイ ハッセイ オヨビ キュウミン シンコウ ニ トモナウ ラン

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抄録

In order to define the changes in the protein polypeptides of the Antheraea yamamai egg during embryonic and diapause development, the protein patterns of these eggs were analysed by SDS-polyacrylamide gel electrophoresis. The protein of the eggs, which were obtained immediately after oviposition, were composed mainly of 7 polypeptides (A: 190-200kDa, E: 180kDa, D: 75kDa, E: 68kDa, F: 62kDa, H: 40kDa, J: 33kDa). On day 8 after oviposition, five new bands appeared in the range of 130 to 180kDa, as well as new G (44-46kDa) and I bands (36kDa) were observed with the degradation of bands E, F and H. During the diapause development, two bands between 150 and 160kDa disappeared in the eggs kept at 25°C, but remained in the eggs kept at 5°C. In the course of embryonic development after diapause termination, an abrupt change was observed in the electrophoretic patterns on day 8, after the beginning of post-diapause development. These results suggest that egg proteins may be degraded at certain specific stages during the embryonic development and diapause development.

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