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Figure 1 | BMC Bioinformatics

Figure 1

From: Automatic detection of anchor points for multiple sequence alignment

Figure 1

Alignments as partitions of the set of sites. (Left) - Unaligned sequences: the class in red is ambiguous. It cannot take place into any alignment of the sequences. The green and orange classes are non-ambiguous. However, they are incompatible with each other. If the green class is accepted, then the orange one must be excluded. (Right) - An alignment of the sequences containing as equivalence class the green subset of sites. Each column of the complete alignment is a subset of sites. The corresponding partition is consistent: in particular, all the elements in a given column appear in the same order with respect to another column.

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