source: tags/ms_r16q4/HELP_SOURCE/oldhelp/partial_sequences.hlp

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UP      glossary.hlp

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#************* Title of helpfile !! and start of real helpfile ********
TITLE           Partial sequences

OCCURRENCE      General

DESCRIPTION     Species should contain an entry 'ARB_partial' specifying
                whether the associated sequence is a "full sequence" or
                a "partial sequence".

                If 'ARB_partial' is 1 then the sequence is considered partial.

                There's a special function to add partial sequences
                (see LINK{pa_partial.hlp}).

NOTES           There are several function to find and mark species with
                partial or full sequence in the Species menu.

EXAMPLES        Attraction of partial sequences (when added as full sequence):

                Species1       .....NNNNNNNNNNN.............................
                Species2       .......................NNNNNNNNNNNNNN........

                The calculated distance between 'Species1' and 'Species2' will be ZERO
                when they are added as full sequences and as a result they will group
                together.

                Adding them as partial sequences will avoid that problem.

WARNINGS        Partial sequences cannot be used to calculate trees. Currently
                this isn't forbidden, but it's highly recommended not to do that.

                Instead remove all species with partial sequences from the tree,
                then optimize the tree and afterwards add the removed species again
                using LINK{pa_partial.hlp}.

BUGS            No bugs known