Paralogues are defined in Ensembl as genes for which the most common ancestor node is a duplication event. These ancestral duplications are represented by red nodes in the gene trees.
The table shows the taxonomic level of the ancestor duplication node, the Ensembl gene ID and name, the location of the paralogue, and the percent of identical amino acids in the paralogue compared with the gene of interest (Target %ID). The identity of the gene of interest when compared with the paralogue is the query %ID.
For alignments of the paralogues, use the links in the Compare column. The compara API and BioMart can be used to export paralogues.