Chromosome-level genome assembly of the bay scallop Argopecten irradians

The bay scallop, Argopecten irradians, is a species of major commercial, cultural, and ecological importance. It is endemic to the eastern coast of the United States but has also been introduced to China, where it supports a significant aquaculture industry. Here, we provide an annotated chromosome-level reference genome assembly for the bay scallop, assembled using PacBio and Hi-C data. The total genome size is 845.9 Mb, distributed over 1,503 scaffolds with a scaffold N50 of 44.3 Mb. The majority (92.9%) of the assembled genome is contained within the 16 largest scaffolds, corresponding to the 16 chromosomes confirmed by Hi-C analysis. The assembly also includes the complete mitochondrial genome. Approximately 36.2% of the genome consists of repetitive elements. The BUSCO analysis showed a completeness of 96.2%. We identified 33,772 protein-coding genes. This genome assembly will be a valuable resource for future research on evolutionary dynamics and adaptive mechanisms and will suppo..., , , # Chromosome-level genome assembly of the bay scallop *Argopecten irradians*

[https://doi.org/10.5061/dryad.d51c5b09b](https://doi.org/10.5061/dryad.d51c5b09b)

### Files and variables

#### File: Argopecten\_irradians\_NY.gff3

**Description:** GFF3 file of the *Argopecten irradians* NY genome

#### File: Argopecten\_irradians\_NY\_proteins.fasta

**Description:** Annotated proteins of the *Argopecten irradians* NY genome

#### File: Argopecten\_irradians\_NY\_genome\_with\_mito.fasta.gz

**Description:** FASTA file of the *Argopecten irradians* NY genome