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. 2015 May 1;22(5):387–401. doi: 10.1089/cmb.2014.0146

FIG. 1.

FIG. 1.

An illustration of a pan-genome reference on a sequence graph. (A) A bidirected graph representing the four ways two blocks can be connected. The arrowheads on the edges indicate their endpoints: the sides of the vertices. (B) An example pan-genome reference on a sequence graph. There are two sequences, indicated by the color of the edges. The red sequence, represented by the thread A, B, C, D, F, G, and the black sequence, represented by the thread A, −F, −E, −D, −B, G. The red thread visits the edges {−A, B}, {−B, C}, {−C, D}, {−D, F}, and {−F, G}, and the black thread visits the edges {−A, −F}, {F, −E}, {E, −D}, {D, −B}, and {B, G}. Neither thread includes all the blocks. A pan-genome reference, indicated by the dotted edges, is A, −F, −E, −D, −C, −B, G. The dotted edges and the edges {−B, D} and {−D, F} are the edges consistent with the given pan-genome reference.