Abstract
AbstractThe big-head schizothorcin (Aspiorhynchus laticeps) is an endemic and near-extinction freshwater fish in Xinjiang, China. In this study, a chromosome-scale genome assembly ofA. laticepswas generated using PacBio and Hi-C techniques. The PacBio sequencing data resulted in a 1.58 Gb assembly with a contig N50 of 1.27 Mb. Using Hi-C scaffolding approach, 88.38% of the initial assembled sequences were anchored and oriented into a chromosomal-scale assembly. The final assembly consisted of 25 pseudo-chromosomes that yielded 1.37 Gb of sequence, with a scaffold N50 of 44.02 Mb. BUSCO analysis showed a completeness score of 93.7%. The genome contained 48,537 predicted protein-coding genes and 58.31% of the assembly was annotated as repetitive sequences. Whole genome duplication events were further confirmed using 4dTv analysis. The genome assembly ofA. laticepsshould be valuable and important to understand the genetic adaptation and endangerment process of this species, which could lead to more effective management and conservation of the big-head schizothorcin and related freshwater fish species.
Funder
Investigation on fishery resources and environment in key waters of Northwest China
Youth Innovation Promotion Association of the Chinese Academy of Sciences
Publisher
Springer Science and Business Media LLC
Subject
Library and Information Sciences,Statistics, Probability and Uncertainty,Computer Science Applications,Education,Information Systems,Statistics and Probability
Reference51 articles.
1. Bain, M. B. The conservation status of large migratory cyprinids including Aspiorhynchus laticeps of Xinjiang China. J Appl Ichthyol 27, 80–85 (2011).
2. Dudgeon, D. et al. Freshwater biodiversity: importance, threats, status and conservation challenges. Biol Rev 81, 163–182 (2006).
3. Froese, R., Pauly, D. FishBase. www.fishbase.org (accessed on 25 March 2022), (2022).
4. Bain, M. B. & Zhang, S. Threatened fishes of the world: Aspiorhynchus laticeps (Day, 1877) (Cyprinidae). Environ Biol Fish 61, 380 (2001).
5. Han, J. J., et al. Observation on embryonic development, morphology and growth of larvae and juveniles of Aspiorhynchus laticeps. South China Fish Sci 17, 59–66. (2021). (In Chinese with English abstract)
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