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Aphid transmissibility of onion yellow dwarf virus isolates with an N-terminal truncated HC-Pro is aided by leek yellow stripe virus

  • Viral and Viroid Diseases
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Abstract

We recently reported that most of the onion yellow dwarf virus (OYDV) isolates detected from garlic in Hokkaido, Japan have a short HC-Pro. Because HC-Pro has been found to be necessary for aphid transmission, OYDV with a short HC-Pro (OYDV-S) conceivably may have lost aphid transmissibility. We here confirmed that OYDV-S was transmitted by aphids only when coinfecting the host with another potyvirus, leek yellow stripe virus (LYSV); OYDV with an intact HC-Pro was transmitted by aphids without LYSV. We presume that LYSV HC-Pro works in trans as a platform that interlinks both LYSV and OYDV-S with the aphid stylet.

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Acknowledgements

We thank Mr. Kazuo Yamashita for information on onion cultivars, Ms. Chieko Hirata for technical assistance and Dr. Kenji S. Nakahara for helpful discussion.

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  1. Wikum H. Jayasinghe and Hangil Kim authors equally contributed to this manuscript.

Authors and Affiliations

  1. Graduate School of Agriculture, Hokkaido University, Kita-ku, Kita 9 Nishi 9, Sapporo, 060-8589, Japan

    Wikum H. Jayasinghe, Hangil Kim & Chikara Masuta

  2. Hokkaido Ornamental Plants and Vegetables Research Center, 735, Higashi-Takikawa, Takikawa, Hokkaido, 073-0026, Japan

    June Sasaki

  3. Department of Agricultural Biology, Faculty of Agriculture, University of Peradeniya, Peradeniya, Sri Lanka

    Wikum H. Jayasinghe

Authors
  1. Wikum H. Jayasinghe
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  2. Hangil Kim
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  3. June Sasaki
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  4. Chikara Masuta
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Correspondence to Chikara Masuta.

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Jayasinghe, W.H., Kim, H., Sasaki, J. et al. Aphid transmissibility of onion yellow dwarf virus isolates with an N-terminal truncated HC-Pro is aided by leek yellow stripe virus. J Gen Plant Pathol 87, 178–183 (2021). https://doi.org/10.1007/s10327-021-00986-y

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  • DOI: https://doi.org/10.1007/s10327-021-00986-y

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