A chromosome-level genome assembly of the Echiura Urechis unicinctus.

ABSTRACT: Echiura is a distinctive family of unsegmented sausage-shaped marine worms whose phylogenetic relationship still needs strong evidence from the phylogenomic analysis. In this family, Urechis unicinctus is known for its high nutritional and medicinal value and adaptation to harsh intertidal conditions. Herein, we combined PacBio long-read, short-read Illumina and Hi-C sequencing, generating a high-quality chromosome-level genome assembly of U. unicinctus. The assembled genome spans ~1,138.6 Mb with a scaffold N50 of 68.3 Mb, of which 1,113.8 Mb (97.82%) were anchored into 17 pseudo-chromosomes. The BUSCO analysis demonstrated the completeness of the genome assembly and gene model prediction are 93.5% and 91.5%, respectively. A total of 482.1 Mb repetitive sequences, 21,524 protein-coding ge

SUBMITTER: Cheng Y 

PROVIDER: S-EPMC10796407 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature