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Spatial distribution of three ARGONAUTEs regulates the anther phasiRNA pathway

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  • Hinako Tamotsu

    (Okinawa Institute of Science and Technology Graduate University (OIST))

  • Koji Koizumi

    (OIST)

  • Alejandro Villar Briones

    (OIST)

  • Reina Komiya

    (Okinawa Institute of Science and Technology Graduate University (OIST))

Abstract

Argonaute protein (AGO) in association with small RNAs is the core machinery of RNA silencing, an essential mechanism for precise development and defense against pathogens in many organisms. Here, we identified two AGOs in rice anthers, AGO1b and AGO1d, that interact with phased small interfering RNAs (phasiRNAs) derived from numerous long non-coding RNAs. Moreover, 3D-immunoimaging and mutant analysis indicated that rice AGO1b and AGO1d cell type-specifically regulate anther development by acting as mobile carriers of these phasiRNAs from the somatic cell layers to the germ cells in anthers. Our study also highlights a new mode of reproductive RNA silencing via the specific nuclear and cytoplasmic localization of three AGOs, AGO1b, AGO1d, and MEL1, in rice pollen mother cells.

Suggested Citation

  • Hinako Tamotsu & Koji Koizumi & Alejandro Villar Briones & Reina Komiya, 2023. "Spatial distribution of three ARGONAUTEs regulates the anther phasiRNA pathway," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-38881-z
    DOI: 10.1038/s41467-023-38881-z
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    1. Yu-Chan Zhang & Meng-Qi Lei & Yan-Fei Zhou & Yu-Wei Yang & Jian-Ping Lian & Yang Yu & Yan-Zhao Feng & Ke-Ren Zhou & Rui-Rui He & Huang He & Zhi Zhang & Jian-Hua Yang & Yue-Qin Chen, 2020. "Reproductive phasiRNAs regulate reprogramming of gene expression and meiotic progression in rice," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
    2. Keiji Nakajima & Giovanni Sena & Tal Nawy & Philip N. Benfey, 2001. "Intercellular movement of the putative transcription factor SHR in root patterning," Nature, Nature, vol. 413(6853), pages 307-311, September.
    3. Pengfei Jiang & Bi Lian & Changzhen Liu & Zeyu Fu & Yi Shen & Zhukuan Cheng & Yijun Qi, 2020. "21-nt phasiRNAs direct target mRNA cleavage in rice male germ cells," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    4. Saori Araki & Ngoc Tu Le & Koji Koizumi & Alejandro Villar-Briones & Ken-Ichi Nonomura & Masaki Endo & Haruhiko Inoue & Hidetoshi Saze & Reina Komiya, 2020. "miR2118-dependent U-rich phasiRNA production in rice anther wall development," Nature Communications, Nature, vol. 11(1), pages 1-12, December.
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