We present a genome assembly from an individual Halichondria panicea (bread-crumb sponge; Porifera; Demospongiae; Suberitida; Halichondriidae). The genome sequence has a total length of 131.46 megabases. Most of the assembly (99.62%) is scaffolded into 17 chromosomal pseudomolecules. The mitochondrial genome has also been assembled, with a length of 19.57 kilobases. Gene annotation of this assembly by Ensembl identified 26 096 protein-coding genes. Five medium-quality bacterial bins were also recovered, of which three belonged to the main Amylibacter -related symbiont, termed Halichondribacter symbioticus .
Hentschel et al. (Mon,) studied this question.