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Neighbor-joining tree of CDKs. Bootstrap values of 50% or higher are shown for each clade. Am, Antirrhinum majus; At, Arabidopsis; Cr, C. reinhardtii; Ce, Caenorhabditis elegans; Dd, Dictyostelium discoideum; Dt, Dunaliella tertiolecta; Hs, Homo sapiens; Os, Oryza sativa; Sc, budding yeast; Sp, fission yeast; Pp, Physcomitrella patens. See Supplemental Table II for GenBank accession numbers.
