Chromosome-Level Genome Assembly of the Amazonian Fish Red-Bellied Pacu

Ivana Rosa provides the first chromosome-level genome assembly for the Amazonian native fish Piaractus brachypomus (red-bellied pacu). The final genome spans 1.34 Gb, with 99.35% of sequences anchored into 27 chromosomes and a BUSCO completeness score of 99.8%. The annotation identified 44.83% repetitive elements and predicted 25,501 protein-coding genes, 99.20% of which were functionally annotated.

Use Cases

• Comparative genomics analysis based on the chromosome-level assembly and 25,501 predicted genes.
• Studying repetitive element evolution based on the 44.83% of the genome identified as repetitive.
• Functional annotation studies based on the 99.20% of inferred genes that were functionally annotated.
• Reference genome construction for population genetics based on the high-continuity assembly with contig values of 40.61 Mb.

Strengths

• High continuity assembly with contig values of 40.61 Mb.
• 99.35% of assembled sequences anchored into 27 chromosomes.
• High BUSCO completeness score of 99.8%.
• Functional annotation for 99.20% of the 25,501 predicted protein-coding genes.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

figshare

Collection Method

Generated using PacBio HiFi long-reads and Hi-C sequencing technologies.

Freshness

Last updated 2026-04-25 07:15:23; freshness should be verified.

Geography

Amazonian native fish (Piaractus brachypomus).