Characterization of the first tenuivirus naturally infecting dicotyledonous plants
A mechanically transmissible virus tentatively named “melon chlorotic spot virus” (MeCSV) was isolated in southeastern France from a melon plant showing chlorotic spots and yellowing of the older leaves. Its complete sequence was obtained by Illumina and Sanger sequencing. The genome comprises eight RNAs for a total size of 20,079 nt and is distantly related to Ramu stunt virus and maize yellow stunt virus, two tentative tenuiviruses. MeCSV differs from other tenuiviruses by its number of genomic fragments, by being readily mechanically transmissible, and by infecting only dicotyledonous hosts. MeCSV should thus be considered a member of a tentative new species related to tenuiviruses.
We thank Catherine Taussig from APREL for collecting the E11-018 sample, the Microscopy Platform of INRA-Montfavet for the electron microscope observations, and the Experimental Infrastructure team of INRA-Montfavet for their help in the greenhouse experiments.
Compliance with ethical standards
This research did not involve any human participants and/or animals. The authors declare that they have no conflict of interest.
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