A Repository of Genes Retained from Whole Genome Duplications in the Vertebrate Genomes

Welcome to OHNOLOGS!

Ohnologs is the database for the genes retained from Whole Genome Duplication in 6 vertebrate genomes.

An Ohnolog is a gene duplicate originating from whole genome duplication (WGD). The name ohnolog has been coined after Susumu Ohno (1928-2000), who first proposed the two rounds of WGDs in the genome of vertebrate ancestor. Here you can browse/download and explore Ohnolog pairs and families in six vertebrate genomes computed with pre-defined or user-defined confidence levels (q-scores).

Vertebrate species currently in OHNOLOGS