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PhasiRNAs in Plants: Their Biogenesis, Genic Sources, and Roles in Stress Responses, Development, and Reproduction

Yuanlong Liu, Chong Teng, Rui Xia, Blake C. Meyers
Yuanlong Liu
aState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, Guangdong 510640, China
bGuangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510640, China
cCollege of Horticulture, South China Agricultural University, Guangzhou 510640, Guangdong, China
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  • ORCID record for Yuanlong Liu
Chong Teng
dDonald Danforth Plant Science Center, St. Louis, Missouri 63132
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Rui Xia
aState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, Guangdong 510640, China
bGuangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510640, China
cCollege of Horticulture, South China Agricultural University, Guangzhou 510640, Guangdong, China
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  • For correspondence: bmeyers@danforthcenter.org rxia@scau.edu.cn
Blake C. Meyers
dDonald Danforth Plant Science Center, St. Louis, Missouri 63132
eDivision of Plant Sciences, University of Missouri–Columbia, Columbia, Missouri 65211
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  • For correspondence: bmeyers@danforthcenter.org rxia@scau.edu.cn

Published October 2020. DOI: https://doi.org/10.1105/tpc.20.00335

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  • © 2020 American Society of Plant Biologists. All rights reserved.

Abstract

Phased secondary small interfering RNAs (phasiRNAs) constitute a major category of small RNAs in plants, but most of their functions are still poorly defined. Some phasiRNAs, known as trans-acting siRNAs, are known to target complementary mRNAs for degradation and to function in development. However, the targets or biological roles of other phasiRNAs remain speculative. New insights into phasiRNA biogenesis, their conservation, and their variation across the flowering plants continue to emerge due to the increased availability of plant genomic sequences, deeper and more sophisticated sequencing approaches, and improvements in computational biology and biochemical/molecular/genetic analyses. In this review, we survey recent progress in phasiRNA biology, with a particular focus on two classes associated with male reproduction: 21-nucleotide (accumulate early in anther ontogeny) and 24-nucloetide (produced in somatic cells during meiosis) phasiRNAs. We describe phasiRNA biogenesis, function, and evolution and define the unanswered questions that represent topics for future research.

  • Received April 27, 2020.
  • Revised July 29, 2020.
  • Accepted August 14, 2020.
  • Published August 18, 2020.
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PhasiRNAs in Plants: Their Biogenesis, Genic Sources, and Roles in Stress Responses, Development, and Reproduction
Yuanlong Liu, Chong Teng, Rui Xia, Blake C. Meyers
The Plant Cell Oct 2020, 32 (10) 3059-3080; DOI: 10.1105/tpc.20.00335

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PhasiRNAs in Plants: Their Biogenesis, Genic Sources, and Roles in Stress Responses, Development, and Reproduction
Yuanlong Liu, Chong Teng, Rui Xia, Blake C. Meyers
The Plant Cell Oct 2020, 32 (10) 3059-3080; DOI: 10.1105/tpc.20.00335
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Extras

  • First author profile: Yuanlong Liu

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  • Article
    • Abstract
    • INTRODUCTION
    • BIOGENESIS OF phasiRNAs
    • EVOLUTION OF phasiRNAs AND THEIR miRNA TRIGGERS
    • FUNCTIONS AND ROLES OF phasiRNAs
    • REPRODUCTIVE phasiRNAs
    • DIVE Curated Terms
    • Acknowledgments
    • AUTHOR CONTRIBUTIONS
    • Footnotes
    • References
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The Plant Cell: 32 (10)
The Plant Cell
Vol. 32, Issue 10
Oct 2020
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