Project description:Chelidonichthys spinosus, a secondary economic fish, is increasingly being exploited and valued in China. However, overfishing has led to it being recognized as one of the most depleted marine species in China. In this study, we generated a chromosome-level genome of C. spinosus using PacBio, Illumina, and Hi-C sequencing data. Ultimately, we assembled a 624.7 Mb genome of C. spinosus, with a contig N50 of 13.77 Mb and scaffold N50 of 28.11 Mb. We further anchored and oriented the assembled sequences onto 24 pseudo-chromosomes using Hi-C techniques. In total, 25,358 protein-coding genes were predicted, of which 24,072 (94.93%) genes were functionally annotated. The dot plot reveals a prominent co-linearity between C. spinosus and Cyclopterus lumpus, indicating a remarkably close phylogenetic relationship between these two species. The assembled genome sequences provide valuable information for elucidating the genetic adaptation and potential molecular basis of C. spinosus. They also have the potential to provide insight into the evolutionary investigation of teleost fish and vertebrates.
Project description:In this study, we present the complete mitogenome and a phylogenetic analysis of Chelidonichthys spinosus characterized using Illumina next-generation and Pacific Biosciences (PacBio, Menlo Park, CA) sequencing technologies. The complete mitochondrial genome is a circular molecule 16,511 bp in length and contains the same set of 37 mitochondrial genes (13 protein-coding genes, two ribosomal RNA (rRNA), 22 transfer RNA (tRNA)), and a control region as other bony fishes. The base composition of the entire mitogenome showed a slight AT bias. Phylogenetic analysis of the mitogenome of C. spinosus fully resolved it in a clade with other species classified to the Triglidae. The mitogenome data produced in this study provide the genomic resources available for future evolutionary studies.
| S-EPMC7971344 | biostudies-literature
Project description:Chelidonichthys spinosus (spiny red gurnard) genome
