RNA Tagging pp 181-194 | Cite as

Utilizing Potato Virus X to Monitor RNA Movement

  • Zhiming Yu
  • Sung Ki Cho
  • Pengcheng Zhang
  • Yiguo HongEmail author
  • David J. HannapelEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 2166)


Mobility assays coupled with RNA profiling have revealed the presence of hundreds of full-length non-cell-autonomous messenger RNAs that move through the whole plant via the phloem cell system. Monitoring the movement of these RNA signals can be difficult and time consuming. Here we describe a simple, virus-based system for surveying RNA movement by replacing specific sequences within the viral RNA genome of potato virus X (PVX) that are critical for movement with other sequences that facilitate movement. PVX is a RNA virus dependent on three small proteins that facilitate cell-to-cell transport and a coat protein (CP) required for long-distance spread of PVX. Deletion of the CP blocks movement, whereas replacing the CP with phloem-mobile RNA sequences reinstates mobility. Two experimental models validating this assay system are discussed. One involves the movement of the flowering locus T RNA that regulates floral induction and the second involves movement of StBEL5, a long-distance RNA signal that regulates tuber formation in potato.

Key words

Potato virus X RNA mobility assay FT BEL5 



This work was in part funded by Ministry of Science and Technology of China (National Key R&D Program 2017YFE0110900), Ministry of Agriculture of China (National Transgenic Program 2016ZX08009001-004), the National Natural Science Foundation of China (31872636, 31370180), Zhejiang Provincial Natural Science of Foundation (LY19C020002), Hangzhou Normal University (Sino-EU Plant RNA Signaling S&T Platform Initiative 9995C5021841101), and a NSF Plant Genome Research Program award no. DBI-0820659 to DH.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2020

Authors and Affiliations

  1. 1.Research Centre for Plant RNA Signaling, College of Life and Environmental SciencesHangzhou Normal UniversityHangzhouChina
  2. 2.Dura-Line CorporationClintonUSA
  3. 3.Warwick-Hangzhou RNA Signaling Joint Laboratory, School of Life SciencesUniversity of WarwickWarwickUK
  4. 4.Worcester-Hangzhou Joint Molecular Plant Health Laboratory, Institute of Science and the EnvironmentUniversity of WorcesterWorcesterUK
  5. 5.Plant Biology Major, Iowa State UniversityAmesUSA

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