Sequencing and assembly of Fabrea salina macronuclear genome

Here, we assembled a near complete macronuclear genome of Fabrea salina, which belongs to one of the oldest clades of ciliates. Its extremely minimized genome (18.35 Mb) is the smallest among all free-living heterotrophic eukaryotes and exhibits typical streamlined genomic features, including high gene density, tiny introns and shrinkage of gene paralogs.