We are pleased to announce the tenth release of WormBase ParaSite. We have included genomes of four new species, bringing the total number of genomes to 138, representing 118 distinct species, and updated the assemblies or annotations of an additional four. This includes results of recent efforts to sequence Ascaridae genomes (Wang et al, 2017): a much improved assembly of Ascaris suum, with an N50 of 4.6Mb up from 290.6kb, and a newly sequenced Parascaris univalens. The other three new genomes are of particular interest to the study of nematode reproduction. These are two species of the genus Diploscapter, D. coronatus (Hiraki et al, 2017) and D. pachys (Fradin et al, 2017), which have managed to stay adaptable and maintain genetic variation throughout their long evolutionary history as parasites; and the free-living Caenorhabditis nigoni (Yin et al, 2018), a parthenogenic cousin of hermaphroditic C. briggsae.
The assembly and annotation of Echinococcus canadensis are now in line with the paper introducing the genome (Maldonado et al, 2017). We also have included a tidy-up update of the assembly of Schistosoma haematobium. For the WormBase core species, we have updated the annotations to WS263. As with each release, we have updated our comparative genomics data – recalculating the orthologues and paralogues for all species – and the protein features pipeline, annotating genes with protein domains and inferred GO terms using the latest version InterProScan.