Discovery of a new Phenuivirus species in Lachenalia plants reveals possible co-evolution between 5' and 3' RNA sequence motifs
Dekker, R. J.; de Leeuw, W. C.; van Olst, M.; Ensink, W. A.; van Leeuwen, S.; Breit, T. M.; Jonker, M. J.
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This study reports the discovery of a new Phenuivirus species, named Lachenalia Phenuivirus-1 (LacPhV-1), from Lachenalia plants in an urban botanic garden in Amsterdam. Using a combination of smallRNA-seq, RNA-seq, and advanced bioinformatics, we identified a segmented negative-strand RNA virus in the Phenuiviridae family. Our findings show significant divergence between this new virus and known Phenuiviruses, such as Tulip Streak Virus (TuSV) and Lactuca Big Vein associated Phlebovirus (LBVaPV), supporting its classification as a distinct species. Notably, the sequence differences found in the conserved 5 and 3 ends of these segments suggest potential co-evolution. Despite the observed genomic distances, there is significant conservation in the RdRp subdomain, underscoring evolutionary relationships among LacPhV-1, TuSV, and LBVaPV. Our findings expand the known global virome and highlight the importance of exploring plant viromes in diverse ecological settings to better understand virus evolution and diversity.
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