20,415 protein-coding genes in the human genome from Ensembl (v70) and information on the retention of duplicates originating either from the two whole genome duplications at the onset of vertebrates (<U+2018>ohnolog<U+2019>) or from subsequent small scale duplications (<U+2018>SSD<U+2019>) as well as copy number variants (<U+2018>CNV<U+2019>), cathegory order.
data(ohno_stateOrder)
A data.frame object.
Verny et al., PLoS Comp. Bio. 2017.