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24-nt reproductive phasiRNAs are broadly present in angiosperms

Author

Listed:
  • Rui Xia

    (South China Agricultural University
    South China Agricultural University
    South China Agricultural University
    Donald Danforth Plant Science Center)

  • Chengjie Chen

    (South China Agricultural University
    South China Agricultural University
    South China Agricultural University)

  • Suresh Pokhrel

    (Donald Danforth Plant Science Center
    University of Missouri-Columbia)

  • Wuqiang Ma

    (South China Agricultural University
    South China Agricultural University
    South China Agricultural University)

  • Kun Huang

    (University of Delaware)

  • Parth Patel

    (University of Delaware)

  • Fuxi Wang

    (University of Maryland)

  • Jing Xu

    (South China Agricultural University)

  • Zhongchi Liu

    (University of Maryland)

  • Jianguo Li

    (South China Agricultural University
    South China Agricultural University
    South China Agricultural University)

  • Blake C. Meyers

    (Donald Danforth Plant Science Center
    University of Missouri-Columbia)

Abstract

Small RNAs are key regulators in plant growth and development. One subclass, phased siRNAs (phasiRNAs) require a trigger microRNA for their biogenesis. In grasses, two pathways yield abundant phasiRNAs during anther development; miR2275 triggers one class, 24-nt phasiRNAs, coincident with meiosis, while a second class of 21-nt phasiRNAs are present in premeiotic anthers. Here we report that the 24-nt phasiRNA pathway is widely present in flowering plants, indicating that 24-nt reproductive phasiRNAs likely originated with the evolutionary emergence of anthers. Deep comparative genomic analyses demonstrated that this miR2275/24-nt phasiRNA pathway is widely present in eudicots plants, however, it is absent in legumes and in the model plant Arabidopsis, demonstrating a dynamic evolutionary history of this pathway. In Solanaceae species, 24-nt phasiRNAs were observed, but the miR2275 trigger is missing and some loci displaying 12-nt phasing. Both the miR2275-triggered and Solanaceae 24-nt phasiRNAs are enriched in meiotic stages, implicating these phasiRNAs in anther and/or pollen development, a spatiotemporal pattern consistent in all angiosperm lineages that deploy them.

Suggested Citation

  • Rui Xia & Chengjie Chen & Suresh Pokhrel & Wuqiang Ma & Kun Huang & Parth Patel & Fuxi Wang & Jing Xu & Zhongchi Liu & Jianguo Li & Blake C. Meyers, 2019. "24-nt reproductive phasiRNAs are broadly present in angiosperms," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08543-0
    DOI: 10.1038/s41467-019-08543-0
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    Cited by:

    1. Nimra Maheen & Muhammad Shafiq & Saleha Sadiq & Muhammad Farooq & Qurban Ali & Umer Habib & Muhammad Adnan Shahid & Asjad Ali & Fawad Ali, 2023. "Genome Identification and Characterization of WRKY Transcription Factor Gene Family in Mandarin ( Citrus reticulata )," Agriculture, MDPI, vol. 13(6), pages 1-21, June.

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