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Compare genes across species

Gene Trees and Homologues

A representative protein for every gene in Ensembl across all species is used to determine gene trees and homologues.

Homologues are separated into Orthologues (across different species) and Paralogues (within a species).

Find out more:

Sequence alignments

Whole genome alignments are determined as part of the Ensembl release cycle, incorporating new species and new assemblies when they are made available in our website.

Compare species in the genomic alignment view:

Alignments (image):

Region comparison:

or the conservation track in Region in Detail: