We have finished the computation of a new OMA release including now orthologs among 1320 genomes. Besides 116 new genomes (including metazoans such as the atlantic cod, the ant and chinese softshell turtle) we again have updated many important eukaryotes, i.e. C. elegans, fruit fly, mouse, dog, pig, chimpanzee, honeybee and the rabbit genomes.
From this release on, we slightly adapt our orthology inference pipeline. Now, we do no longer test whether genes from species belonging to different kingdoms are apparent orthologs because of differential gene loss (our "witness of non-orthology" verification step). The rational for this decision is that the necessary duplication event must have happend prior to the speciation event of the two species in question, i.e. before LUCA, and hence these cases are not very reliable witnesses.
The data of the previous release is still available in the OMA Browser Archive for download.