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1 January 2012 Developmental Changes in the Localization of Protein Kinase CK2 in Non-Diapause and Diapause Eggs of the Silkworm, Bombyx mori
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Abstract

To analyze the role of protein kinase CK2 (CK2) during early embryogenesis in non-diapause and diapause of the silkworm, the distribution and localization of Bombyx mori CK2 (BmCK2) were investigated by an immunohistochemical technique using antibodies against the α- and β-subunits of BmCK2. Both were localized in blastoderm cells of non-diapause and diapause eggs until 24 h after oviposition. More than 24 h after oviposition, however, the distribution of BmCK2 was different in non-diapause and diapause eggs. In non-diapause eggs, BmCK2 was mainly localized in yolk cells. In contrast, in diapause eggs, the localization was mainly observed in germ-band cells. Furthermore, we confirmed that the RNA helicase-like protein that was localized together with BmCK2 in non-diapause eggs was phosphorylated by BmCK2 in vitro. These data suggest that the role of BmCK2 is different in non-diapause and diapause eggs.

© 2012 Zoological Society of Japan
Hiroshi Sawada, Yumi Yamahama, Takayuki Yamamoto, Toru Togawa, and Keisuke Mase "Developmental Changes in the Localization of Protein Kinase CK2 in Non-Diapause and Diapause Eggs of the Silkworm, Bombyx mori," Zoological Science 29(1), 6-10, (1 January 2012). https://doi.org/10.2108/zsj.29.6
Received: 15 June 2011; Accepted: 1 July 2011; Published: 1 January 2012
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