# The chromosomal genome sequence of the carnivorous sponge, Lycopodina hypogea (Vacelet & Boury-Esnault, 1996) (Poecilosclerida: Cladorhizidae) and its associated microbial metagenome sequences

## TL;DR

This paper presents the genome sequence of a carnivorous sponge and its associated microbial community, revealing insights into its genetic makeup and symbiotic relationships.

## Contribution

The study provides a high-quality chromosomal genome assembly and metagenomic analysis of Lycopodina hypogea and its microbial symbionts.

## Key findings

- The sponge genome assembly includes 16,317 protein-coding genes and a 235.10 Mb chromosomal sequence.
- The metagenome analysis identified 27 high-quality microbial genomes, including symbionts like Candidatus Spongiihabitans and Candidatus Poriferisodalaceae.

## Abstract

We present a genome assembly from an individual
Lycopodina hypogea (carnivorous sponge; Porifera; Demospongiae; Poecilosclerida; Cladorhizidae). The genome sequence has a total length of 235.10 megabases. Most of the assembly (98.85%) is scaffolded into 15 chromosomal pseudomolecules. The mitochondrial genome has also been assembled, with a length of 31.1 kilobases. Gene annotation of this assembly by Ensembl identified 16 317 protein-coding genes. From the metagenome data we recovered 39 bins, of which 27 were high-quality MAGs, including four fully circularised genomes. The MAGs included archaea and bacteria involved in nitrification and sulfate-reduction as well as known sponge symbionts affiliated with Gammaproteobacteria (
Candidatus Spongiihabitans, Porisulfidus) and Acidimicrobiales (
Candidatus Poriferisodalaceae), among others.