Mechanisms of sex differentiation and sex reversal in hermaphrodite fish as revealed by the Epinephelus coioides genome.

Most grouper species are functional protogynous hermaphrodites, but the genetic basis and the molecular mechanisms underlying the regulation of this unique reproductive strategy remain enigmatic. In this study, we report a high-quality chromosome-level genome assembly of the representative orange-spotted grouper (Epinephelus coioides). No duplication or deletion of sex differentiation-related genes was found in the genome, suggesting that sex development in this grouper may be related to changes in regulatory sequences or environmental factors.

Chromosome-Level Genome Assembly and Transcriptome Comparison Analysis of and Its Related Grouper Species.

The tomato hind, , is a bottom-dwelling coral reef fish, which is widely distributed in the Indo-Pacific and Red Sea. also features complex social structures and behaviour mechanisms. Here, we present a high-quality, chromosome-level genome assembly for that was derived using PacBio sequencing and Hi-C technologies.

Developing Single Nucleotide Polymorphisms for Identification of Cod Products by RAD-Seq.

The increase in the rate of seafood fraud, particularly in the expensive fishes, forces us to verify the identity of marine products. Meanwhile, the definition of cod lacks consistency at the international level, as few standards and effective application methods are capable of accurately detecting cod species. Genetic fingerprinting is important for both certifying authenticity and traceability of fish species.

A Comparative Genomic and Transcriptional Survey Providing Novel Insights into Bone Morphogenetic Protein 2 () in Fishes.

Intermuscular bones (IBs) are only found in the muscles of fish. Bone morphogenetic protein 2 (bmp2) is considered to be the most active single osteogenesis factor. It promotes cell proliferation and differentiation during bone repair, as well as inducing the formation of bones and cartilages in vivo.

An SNP-Based Genetic Map and QTL Mapping for Growth Traits in the Red-Spotted Grouper ().

The red-spotted grouper () is one of the most commercially important aquatic species in China. However, its seedstock has low larval survival rates, and its stability is confronted with the danger of overexploitation. In this study, a high-density genetic map was constructed using 3435 single nucleotide polymorphisms (SNPs) from 142 first generation (F) full-sib offspring and two parents of a red-spotted grouper population.

A genome-wide association study on growth traits in orange-spotted grouper (Epinephelus coioides) with RAD-seq genotyping.

The orange-spotted grouper, Epinephelus coioides, is one of the most popular fish in China and Southeast Asian countries because of its important economic value. However, molecular mechanism underlying the growth of orange-spotted grouper has never been fully understood. Herein, we performed a genome-wide association study (GWAS) on a natural population of 198 individuals aiming to screen the whole genome of orange-spotted grouper for identification of growth-related loci by restrictionsite associated DNA sequencing.

The complete mitochondrial genome of Indonesian snakehead, (Channiformes, Channidae).

Here we have characterized the complete mitochondrial genome of Indonesian snakehead, , and described its organization in this paper. The complete mitochondrial genome, 16,567 bp, is composed of 32.54% A, 14.