Overall scoring graph. Overall scoring graph, created by adding up all normalized benchmarking scores per ortholog identification method. X-axis, the several ortholog identification methods, sorted by average proteome size or number of protein pairs; Y-axis, the sum of all five benchmarking scores per ortholog identification method. Red, correlation of expression profiles; green, equal InterPro accession numbers; blue, conservation of co-expression; orange, conservation of gene order; purple, conservation of protein-protein interaction. (a) Human-mouse (Hs-Mm). (b) Human-worm (Hs-Ce).