Using a manually-compiled list of Arabidopsis thaliana and Saccharomyces cerevisiae mitochondrial import components, putative orthologues were identified by BLASTP, TBLASTN and HMMER (as described in the MPIC paper). Phylogenetic analysis for each gene family was done in MEGA5 with 1000 iterations and presented below as a branched model with scores included. In the PDF format, orthologue identifiers can be clicked to view their respective websites.