Formation of nucleus-like structure in the cytoplasm of λ-DNA-injected fertilized eggs and its partition into blastomeres during early embryogenesis in Xenopus laevis

Koichiro Shiokawa, Munefumi Sameshima, Kosuke Tashiro, Takayo Miura, Norihiko Nakakura, K. Yamana

研究成果: ジャーナルへの寄稿学術誌査読

15 被引用数 (Scopus)

抄録

The fate of bacteriophage λ-DNA was examined after injection into the fertilized eggs of Xenopus laevis. Injection of a large amount of λ-DNA (ca. 24 ng) into a fertilized Xenopus egg induced the formation around the injected DNA of a giant nucleus-like structure which was surrounded by an apparently normal bilayered nuclear membrane with nuclear pore complexes. Southern blot analysis revealed the persistence of injected λ-DNA until the blastula stage. The nucleus-like structure was partitioned into blastomeres during cleavage through a process of nuclear fission, and was maintained in a group of extraordinarily large blastomeres until the blastula stage.

本文言語英語
ページ(範囲)539-542
ページ数4
ジャーナルDevelopmental Biology
116
2
DOI
出版ステータス出版済み - 8月 1986

!!!All Science Journal Classification (ASJC) codes

  • 分子生物学
  • 発生生物学
  • 細胞生物学

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