Introduces a reference genome, a sequenced genome, and a history of basic SV (consisting of a deletion of the section (V) , inversion of (X) , and insertion of (I) ) that transforms the former genome into the latter genome. The black-boxed numbers indicate the order of the breakends on the sequenced genome. A tilde over a number expresses that the corresponding breakend is on the reverse strand of the sequenced genome. The arrowheads of the genome sections (U) , (V) , (W) , (X) , (Y) , and (Z) symbolize their direction on the reference; the colored boxes above and below are their nucleotides (see Additional file 2 ) on forward and reverse strand, respectively.
