Cucurbit aphid-borne yellows virus from melon plants in Brazil is an interspecific recombinant
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Melon plants with severe yellowing symptoms from in Brazil were analyzed by high-throughput sequencing. Sequences homologous to the genome of the polerovirus cucurbit aphid-borne yellows virus (CABYV) were frequently retrieved. Two draft CABYV genomes were assembled from two pooled melon samples that contained an identical putative recombinant fragment in the 3′ region with an unknown polerovirus. The complete genomes of these isolates revealed by Sanger sequencing share 96.8% nucleotide identity, while both sequences share 73.7% nucleotide identity with a CABYV-N isolate from France. A molecular-clock analysis suggested that CABYV was introduced into Brazil ~ 68 years ago.
This work was supported by CNPq with the project number of 401755/2013-4. MAA work was supported by grant AGL2015-65838 (Ministerio de Economía, Industria y Competitividad, Spain). AKIN and TN are CNPq fellows.
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The authors declare that they have no conflicts of interest.
This article does not contain any studies with human participants or animals performed by any of the authors.