In order to work with alignments of genes you first have to
extract the wanted genes into some kind of pseudo-species.
We called them 'gene-species'.
These gene-species store additional information about the
organism and the gene they originated from (ARB_origin_gene
and ARB_origin_organism). They only contain that part of the
whole organism-sequence the gene corresponds to.
The intention is to create different alignments for different
groups of genes and to calculate your trees using these
alignment(s).
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