Fig. 2

The excision of solo LTDRs. A Schematic illustrations of the excision from a dimer (top) or a monomer (middle), which gives rise to the LTDR-INT/INT-LTDR structure (bottom). TSDs are symbolized by red diamonds. B Nucleotide “footprint” left in 5 cases of LTDR-INT/INT-LTDR in KolobokP-7N2_CorFlu (1–2) and KolobokP-4N1_CorFlu (3–5), and one case of “solo INT” in KolobokP-4N1_CorFlu (6). Red-colored, unboxed base pairs represent the inferred likely TSDs; other alternative TSDs (gray, smaller font) are marked above. Sequences in green boxes represent the target sequences prior to the insertion of KolobokP. The raw sequences of these 6 cases are provided in Additional file 2: Figure S5