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Combining Analysis of DNA in a Crude Virion Extraction with the Analysis of RNA from Infected Leaves to Discover New Virus Genomes
Published on: July 27, 2018
Satellite RNAs and Satellite Viruses of Plants
Chung-Chi Hu1, Yau-Heiu Hsu, Na-Sheng Lin
1Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, 402, Taiwan; E-Mails: cchu@dragon.nchu.edu.tw (C.-C.H.); yhhsu@nchu.edu.tw (Y.-H.H.).
Abstract:
The view that satellite RNAs (satRNAs) and satellite viruses are purely molecular parasites of their cognate helper viruses has changed. The molecular mechanisms underlying the synergistic and/or antagonistic interactions among satRNAs/satellite viruses, helper viruses, and host plants are beginning to be comprehended. This review aims to summarize the recent achievements in basic and practical research, with special emphasis on the involvement of RNA silencing mechanisms in the pathogenicity, population dynamics, and, possibly, the origin(s) of these subviral agents. With further research following current trends, the comprehensive understanding of satRNAs and satellite viruses could lead to new insights into the trilateral interactions among host plants, viruses, and satellites.
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