Document of bibliographic reference 381332

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

A chromosome-level genome assembly of a deep-sea symbiotic Aplacophora mollusc Chaetoderma sp.

Abstract

The worm-shaped, shell-less Caudofoveata is one of the least known groups of molluscs. As early-branching molluscs, the lack of high-quality genomes hinders our understanding of their evolution and ecology. Here, we report a high-quality chromosome-scale genome of Chaetoderma sp. combining PacBio, Illumina, and high-resolution chromosome conformation capture sequencing. The final assembly has a size of 2.45 Gb, with a scaffold N50 length of 141.46 Mb, and is anchored to 17 chromosomes. Gene annotations showed a high level of accuracy and completeness, with 23,675 predicted protein-coding genes and 94.44% of the metazoan conserved genes by BUSCO assessment. We further present 16S rRNA gene amplicon sequencing of the gut microbiota in Chaetoderma sp., which was dominated by the chemoautotrophic bacteria (phylum Gammaproteobacteria). This chromosome-level genome assembly presents the first genome for the Caudofoveata, which constitutes an important resource for studies ranging from molluscan evolution, symposium, to deep-sea adaptation.

Bibliographic citation

Wang, Y.; Wang, M.; Li, J.; Zhang, J.; Zhang, L. (2024). A chromosome-level genome assembly of a deep-sea symbiotic Aplacophora mollusc Chaetoderma sp. Scientific Data 11(1): 133. https://dx.doi.org/10.1038/s41597-024-02940-x

Topic

Marine

Is peer reviewed

true

Access rights

open access

Is accessible for free

true