Relationship among 16 subsequences. Graphical depiction of subsequence “AAAAA” and 15 adjacent subsequences. Each node describes a subsequence and each edge indicates that the terminal nodes are of one nucleotide difference. The 15 subsequences are divided into five groups according to the position of the different nucleotide.
Takenaka et al. BMC Genomics 2011 12(Suppl 3):S8 doi:10.1186/1471-2164-12-S3-S8