Fig. 2

Trichogramma pretiosum comparative genomics. a Trimmed phylogeny representing relationships of species used in genomic comparisons. b For each species, we determined the number of genes in the single-copy core clusters, variable-copy number core clusters, dispensable clusters (non-core, non-species specific), species-specific clusters, and singleton categories, as delineated by OrthoMCL. c Numbers of gene family clusters that have significantly expanded or contracted at branches across the phylogeny. Lowercase letters above pairs of bars refer to branches leading to internal nodes of the tree and corresponding points on the phylogeny in red. d Proportion of Trichogramma pretiosum lineage-specific genes (delimited by OrthoMCL) recovered in other hymenopteran genomes, using blastp and a range of e-value and length thresholds. e Female Trichogramma pretiosum from the asexual Insectary line. Her body is approximately three tenths of a millimeter long