Figure 4
From: Horizontal transfer of a non-autonomous Helitron among insect and viral genomes
Structure of the Autographa californica nucleopolyhedrovirus (AcNPV) element. The element inserted into the AcNPV genome following serial passage through cell lines from the noctuid insects Spodoptera frugipera and Trichoplusia ni. The mobile element contains termini that show ≥ 95.4% nucleotide similarity to Hel-2 Helitrons integrated into the genomes of Helicoverpa sp. (Lepidoptera: Noctuidae) and are represented ass black arrows. The central region of the element is putatively derived from nested insertion of a TE-LNCR transposon (grey bar) initially described from S. frugiperda (Lepidoptera: Noctuidae; see Discussion for appropriate citations).