Active role of small non-coding RNAs derived from SINE/B1 retrotransposon during early mouse development

Yusuke Ohnishi, Yasushi Totoki, Atsushi Toyoda, Toshiaki Watanabe, Yasuhiro Yamamoto, Katsushi Tokunaga, Yoshiyuki Sakaki, Hiroyuki Sasaki, Hirohiko Hohjoh

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    Small RNAs derived from repetitive sequences appear to play essential roles in mammalian gametogenesis and early development. In this study we focused on the short interspersed nucleotide element B1 (SINE/B1) small RNAs, which were zygotically expressed in pre-implantation mouse embryos; and we investigated whether the SINE/B1 small RNAs played an active role in gene silencing during early mouse development. The results indicated that the level of silencing activity involving the SINE/B1 small RNAs as mediators was significantly reduced in Dicer-knockdown mouse embryos. In addition, when the SINE/B1 small RNAs were mapped to a full-length SINE/B1 sequence, phase-distribution of the small RNAs appeared, suggesting possible enzymatic involvement. Therefore, our present study suggested that the zygotically expressed SINE/B1 small RNAs in pre-implantation mouse embryos contain active small RNAs, which were presumably processed by Dicer and involved in gene silencing.

    Original languageEnglish
    Pages (from-to)903-909
    Number of pages7
    JournalMolecular biology reports
    Volume39
    Issue number2
    DOIs
    Publication statusPublished - Feb 1 2012

    Fingerprint

    Short Interspersed Nucleotide Elements
    Small Untranslated RNA
    Retroelements
    RNA
    Gene Silencing
    Gametogenesis
    Nucleic Acid Repetitive Sequences
    Embryonic Structures

    All Science Journal Classification (ASJC) codes

    • Molecular Biology
    • Genetics

    Cite this

    Ohnishi, Y., Totoki, Y., Toyoda, A., Watanabe, T., Yamamoto, Y., Tokunaga, K., ... Hohjoh, H. (2012). Active role of small non-coding RNAs derived from SINE/B1 retrotransposon during early mouse development. Molecular biology reports, 39(2), 903-909. https://doi.org/10.1007/s11033-011-0815-1

    Active role of small non-coding RNAs derived from SINE/B1 retrotransposon during early mouse development. / Ohnishi, Yusuke; Totoki, Yasushi; Toyoda, Atsushi; Watanabe, Toshiaki; Yamamoto, Yasuhiro; Tokunaga, Katsushi; Sakaki, Yoshiyuki; Sasaki, Hiroyuki; Hohjoh, Hirohiko.

    In: Molecular biology reports, Vol. 39, No. 2, 01.02.2012, p. 903-909.

    Research output: Contribution to journalArticle

    Ohnishi, Y, Totoki, Y, Toyoda, A, Watanabe, T, Yamamoto, Y, Tokunaga, K, Sakaki, Y, Sasaki, H & Hohjoh, H 2012, 'Active role of small non-coding RNAs derived from SINE/B1 retrotransposon during early mouse development', Molecular biology reports, vol. 39, no. 2, pp. 903-909. https://doi.org/10.1007/s11033-011-0815-1
    Ohnishi, Yusuke ; Totoki, Yasushi ; Toyoda, Atsushi ; Watanabe, Toshiaki ; Yamamoto, Yasuhiro ; Tokunaga, Katsushi ; Sakaki, Yoshiyuki ; Sasaki, Hiroyuki ; Hohjoh, Hirohiko. / Active role of small non-coding RNAs derived from SINE/B1 retrotransposon during early mouse development. In: Molecular biology reports. 2012 ; Vol. 39, No. 2. pp. 903-909.
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