Handbook

Distance Summary

It is desirable for barcodes to show very low sequence divergence within a species, with significantly higher sequence divergence at higher taxonomic levels. The Distance Summary tool gives a report of sequence divergence between barcode sequences at the conspecific and congeneric levels.

Parameters

Various distance models and alignment algorithms are available as parameters, as well as options to filter out sequences based on sequence length or sequence issues.

Results

Comparisons are performed between the given taxonomic levels with the frequency plotted as shown below. There is one visualization provided that is normalized by species to remove sampling bias from the equation. Details for the comparisons done at the level of species, genus, and family are available by clicking on the links in the top right corner.

Distance Summary page