Abstract
A putative new emaravirus, named "ailanthus crinkle leaf-associated emaravirus" (ACrLaV), was detected in Ailanthus altissima with severe crinkle symptoms by RNA-Seq and RT-PCR. Four viral segments associated with ACrLaV were identified and fully sequenced, except for a few nucleotides at the genomic termini. The RNA-dependent RNA polymerase (RNA1), glycoprotein (RNA2), nucleocapsid protein (RNA3), and movement protein (RNA4), showed 26.5%-57%, 17%-49.9%, 14.4%-40.4%, and 14.1%-65.9% amino acid sequence identity, respectively, to those of known emaraviruses. All four ACrLaV genomic RNA segments are most closely related to those of common oak ringspot-associated virus from Germany, as supported by sequence comparisons and phylogenetic analysis. ACrLaV is considered a distinct member of the genus Emaravirus, and this is the first report of an emaravirus in A. altissima.
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