Recovering Evolutionary History
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چکیده
When a group of aligned sequences shows significant similarity to each other, as described in Chapters 4 to 6, this can usually be taken as evidence that they are the result of divergent evolution from a common ancestral sequence. In this case, the sequence alignment will contain traces of the evolutionary history of these sequences. It is possible to infer this history by complex analysis of a multiple sequence alignment. In this and the following chapter we will describe the ways in which the evolutionary history can be recovered and used to investigate the evolutionary relationships between present-day sequences.
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