Conditional Orthology Assignment

The conditional orthology assignment method is a “one click” program for identifying homologous transcripts from a whole de novo transcriptome assembly.

Depending on transcriptome size conditional orthology assignment may take several hours. Your email address is not stored or recorded and is used only to provide you with a link to the results once assignment is complete.

Please upload a file containing set of nucleotide sequences in FASTA format

Your e-mail address:

Upload a file of assembled transcripts:

Select reference species to annotate against:

If you use this program please cite:
Aubry, S., Kelly, S., K├╝mpers, B.M.C., Smith-Unna, R.D., Hibberd, J.M., (2014).Deep evolutionary comparison of gene expression identifies parallel recruitment of trans-factors in two independent origins of C4 photosynthesis. PLoS GeneticsPDF