Venn diagram of genes expressed in human versus mouse platelets. Venn diagram represents the overlap in gene expression (> 0.3 RPKM) of all genes with an ortholog match in human versus mouse platelets. The diagram was generated from a combined list of genes expressed in either the Trizol or column isolations. The total numbers of genes expressed with an ortholog match (known orthologs expressed) or, regardless of an ortholog match (RefSeq genes expressed), are given above the diagram.