Additional file 2.

Reconciled tree for the reduced β2-microglobulin gene family. The reduced gene tree was reconciled using GeneTree with the species tree. Squares indicate duplication events, grey lines indicate absent genes, either lost from those species or not yet sequenced.

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Raimondi et al. BMC Evolutionary Biology 2011 11:159   doi:10.1186/1471-2148-11-159