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Cross-Kingdom Small RNAs among Animals, Plants and Microbes

by Jun Zeng 1,2, Vijai Kumar Gupta 3, Yueming Jiang 4,5, Bao Yang 4,5, Liang Gong 4,5,* and Hong Zhu 1,5,*
1
Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
3
Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, 12618 Tallinn, Estonia
4
Key Laboratory of Plant Resource Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
5
Key Laboratory of Post-Harvest Handling of fruits, Ministry of Agriculture, Guangzhou 510650, China
*
Authors to whom correspondence should be addressed.
Cells 2019, 8(4), 371; https://doi.org/10.3390/cells8040371
Received: 22 March 2019 / Revised: 12 April 2019 / Accepted: 20 April 2019 / Published: 23 April 2019
Small RNAs (sRNAs), a class of regulatory non-coding RNAs around 20~30-nt long, including small interfering RNAs (siRNAs) and microRNAs (miRNAs), are critical regulators of gene expression. Recently, accumulating evidence indicates that sRNAs can be transferred not only within cells and tissues of individual organisms, but also across different eukaryotic species, serving as a bond connecting the animal, plant, and microbial worlds. In this review, we summarize the results from recent studies on cross-kingdom sRNA communication. We not only review the horizontal transfer of sRNAs among animals, plants and microbes, but also discuss the mechanism of RNA interference (RNAi) signal transmission via cross-kingdom sRNAs. We also compare the advantages of host-induced gene silencing (HIGS) and spray-induced gene silencing (SIGS) technology and look forward to their applicable prospects in controlling fungal diseases. View Full-Text
Keywords: RNA interference; cross-kingdom RNAi; small RNAs; crop protection; HIGS; SIGS RNA interference; cross-kingdom RNAi; small RNAs; crop protection; HIGS; SIGS
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Zeng, J.; Gupta, V.K.; Jiang, Y.; Yang, B.; Gong, L.; Zhu, H. Cross-Kingdom Small RNAs among Animals, Plants and Microbes. Cells 2019, 8, 371.

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