Figure 5.

Predicted ssRNA secondary structure of terminal 75 bases at 3′ end for three genomic segments. The region of similarity covers the last 75 nucleotides at the 3′ end and starts with AAGU for all three strands. The structurally identical regions are boxed in red outlines. Note that even nonidentical nucleotides kept a similar secondary structure. The calculation was performed using the forna online RNA secondary structure visualization tool (http://rna.tbi.univie.ac.at/forna/, accessed on 17 August 2022). The sequence identity does not significantly affect recombination.