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APOL1–APOL2 gene diversification is accompanied by organ-specific expression. (A) Expression levels of APOL1 (L1, green) and APOL2 (L2, orange) transcriptomes (expressed as RPKM-normalized counts) during human organ development derived from the Evo-devo database. White background indicates embryonic or prenatal stages and gray background postnatal stages of mammalian organ development (supplementary data SD20, Supplementary Material online).
