
Filling gaps in supercontigs. (A) Contigs A andB are connected by a path p of contigsX1, …, Xk . The distancedp(A,B) between A and B (along the path p) is the length of the sequence in the path that does not overlap A or B. (B) ContigsY1 and Y2 share forward-reverse links with the supercontig S. These links position them in the vicinity of the gap between A and B. Therefore,Y1 and Y2 will be used as possible stepping points in the path closing the gap from A toB.











