Authors
Ivana F Rosa, Kaiqiang Liu, Shuo Li, Weijing Li, Chang Liu, Lei Lin, Jingjing Zhang, Yu Yang, Hong-Yan Wang, Qian Wang, Yuanning Li, Rafael H Nóbrega, Lucas B Doretto, Xidong Mu, Changwei Shao
Published in
Scientific data. Jul 01, 2026. Epub Jul 01, 2026.
Abstract
Piaractus brachypomus (red-bellied pacu), native to the Amazon River Basin, is widely known for its rapid growth, disease resistance, and cost-effective feeding, which have led to its widespread introduction and high commercial value worldwide. Despite this, the lack of a reference genome has hindered both genetic and evolutionary studies, as well as the genetic improvement of aquaculture traits. Here, to address this gap, we report the first chromosome-level genome assembly of P. brachypomus using PacBio HiFi long-reads and Hi-C sequencing technologies. The final genome assembly has a total size of 1.34 Gb and exhibits high continuity, with contig N50 of 40.61 Mb. Approximately 99.35% of assembled sequences were anchored into 27 chromosomes, with a BUSCO completeness score of 99.8%. Genome annotation identified 44.83% of repetitive elements and predicted 25,501 protein-coding genes with 99.2% receiving functional annotations. Overall, these findings offer a framework for evolutionary studies and genetic improvement, facilitating marker-assisted and genome-wide selection for the sustainable enhancement of P. brachypomus aquaculture stocks.
PMID:
42380142
Bibliographic data and abstract were imported from PubMed on 01 Jul 2026.
Read full publication at:
Please sign in
to see all details.
Advertisement
Stats
- Recommendations n/a n/a positive of 0 vote(s)
- Views 5
- Comments 0