Exporting paralogues with BioMart
Export a list of all zebrafish genes on chromosome 14 which have a paralogue, including the gene names, the last common ancestor and the identity between the genes.
Start at ensembl.org/biomart/martview. Choose the Ensembl Genes database. Choose the Zebrafish genes dataset.
Click on Filters in the left panel. Under REGION: select Chromosome – 14. Under MULTI SPECIES COMPARISONS: select Homologue filters – Paralogous Zebrafish Genes: Only.
Click on Attributes in the left panel. Select Homologues from the six options at the top. Under GENE: deselect Ensembl Transcript stable ID and its version, select Gene name. Under PARALOGUES: select Zebrafish paralogue gene stable ID, Zebrafish paralogue associated gene name, Paralogue last common ancestor with Zebrafish, Paralogue %id. target Zebrafish gene identical to query gene and Paralogue %id. query gene identical to target Zebrafish gene.
Click the Results button on the toolbar. Select View All rows as HTML or export all results to a file.