What’s coming in release 103

We’re planning to release Ensembl 103 in February 2021. We’ve got lots of plans, although we can’t guarantee everything will make it into the release.


  • The new mouse genome assembly, GRCm39
  • The mouse strains alignment will be recalculated as EPO using the new assembly.


  • Some transcripts will be labelled as MANE Plus Clinical. More details here.
  • dbSNP variants in our GRCh38 database will be updated to version 154.
  • New allele frequency data from the GEM-J panel  will be displayed in both our GRCh37 and GRCh38 browser views .
  • The Regulatory build will be updated including additional annotation on Y
  • Publication data from the Mastermind Genomic Search Engine will be made available on the Ensembl VEP web and REST interfaces.

Updated genomes


  • Panda, Ailuropoda melanoleuca
  • Cod, Gadus morhua
  • Climbing perch, Anabas testudineus
  • Zig-zag eel, Mastacembelus armatus
  • Crab-eating macaque, Macaca fascicularis


  • Beadlet anemone, Actinia equina
  • Fruitflies:
    • Drosophila ananassae
    • Drosophila erecta
    • Drosophila grimshawi
    • Drosophila melanogaster
    • Drosophila mojavensis
    • Drosophila persimilis
    • Drosophila pseudoobscura
    • Drosophila sechellia
    • Drosophila simulans
    • Drosophila virilis
    • Drosophila willistoni
    • Drosophila yakuba

New genomes


  • Whitefly:
    • Bemisia tabaci AsiaII-5 
    • Bemisia tabaci SSA1-SG1 Nig 
    • Bemisia tabaci SSA1-SG1 Ug 
    • Bemisia tabaci SSA2 Nig
    • Bemisia tabaci SSA3 Nig
    • Bemisia tabaci Sweetpotato Ug
  • Greenhouse whitefly, Trialeurodes vaporariorum


  • Nine wheat strains (or cultivars)
  • Spelt, Triticum spelta
  • Asparagus, Asparagus officinalis
  • Quinoa, Chenopodium quinoa
  • Eucalyptus, Eucalyptus grandis
  • Poppy, Papaver somniferum


  • Our Variant Recoder tool will be updated to report allele-specific matches, rather than variant-specific matches. This requires a change to the format of the response from the REST service. A simple to use  online interface  will also be released.
  • Removal of the RDF data dumps from the FTP site