="glosstext" id="POPUP46388" style="display: none;"> A taxon is the individual unit whose evolutionary relationship is being investigated.  Depending on the study, “taxa” may refer to species, populations, individuals, or sequences within an individual.</span> listed. You can 
 resize this column by dragging the vertical bar at its right edge. The 
 distances are displayed in the columns to the right.</font></p>
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