PhylomeDB v3.0: an expanding repository of genome-wide collections of trees, alignments and phylogeny-based orthology and paralogy predictions. - Jaime Huerta-Cepas; Salvador Capella-Gutiérrez; Leszek P. Pryszcz; Ivan Andreevich Denisov; Diego Kormes; Marina Marcet-Houben; Toni Gabaldón (Nucleic Acids Res., 2011)