AI Article Synopsis
- The spotted lanternfly is an invasive pest that causes significant economic damage in fruit and wood industries.
- Researchers identified a new virus called Lycorma delicatula iflavirus 1 (LDIV1) in the lanternfly, which has a genome of 10,222 nucleotides and encodes various functional domains.
- LDIV1 replicates within the spotted lanternfly and triggers the insect's antiviral immune response, showing a close genetic relationship to other viruses in the Picornavirales order, qualifying it as a new species in the Iflavirus genus.
Article Abstract
The spotted lanternfly (Lycorma delicatula) is an invasive pest that causes serious economic losses in fruit and wood production. Here, we identified a novel iflavirus named "Lycorma delicatula iflavirus 1" (LDIV1), in a spotted lanternfly. The full genome sequence of LDIV1 is 10,222 nt in length and encodes a polyprotein containing a picornavirus capsid-protein-domain-like domain, a cricket paralysis virus capsid superfamily domain, an RNA helicase domain, a peptidase C3 superfamily domain, and an RNA-dependent RNA polymerase (RdRp) domain. LDIV1 replicates in the host insect and activates small interfering RNA (siRNA)-based host antiviral immunity. Phylogenetic analysis demonstrated that LDIV1 is most closely related to an unspecified member of the order Picornavirales, with 61.7% sequence identity in the RdRp region and 57.6% sequence identity in the coat protein region, and thus meets the demarcation criteria for new species in the genus Iflavirus. To the best of our knowledge, LDIV1 is the first virus discovered in L. delicatula.
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