The top plot in the following graph is the information content, per base,
of the human
est. by the eXpert Model (XM),
smoothed (w=21), and
averaging 1.98 bits/base; it is barely compressible.
The blue plot is the saving in human HBV
given knowledge of the w.monkey HBV sequence.
There is substantial information saving and you can see it tracking genes,
e.g., for the reverse transcriptase.
The brown plot is the saving in human HBV
given the less closely related woodchuck HBV sequence.
There is less information saving and it is more localised.
The green plot is the saving
given the distantly related duck HBV sequence.
This last flat-lines at roughly zero bits saving except for a region
at about 200-300.