Dataset Information

The complete mitochondrial genome of Conger erebennus (Jordan & Snyder, 1901) (Anguilliformes: Congridae) from Liaoning Province, China.

ABSTRACT: This study aims to explore the complete mitochondrial genome and phylogenetic relationship of Conger erebennus (Jordan & Snyder, 1901) (Anguilliformes: Congridae). The information about the mitogenome was obtained using Illumina's next-generation sequencing technologies. The results revealed that the length of the circular mitogenome was 18,777 bp and it contained 37 genes and three unidentical control regions (CRs). The mitogenome contained 62.78% AT bases with an anti-G bias similar to that in most marine fishes. The maximum-likelihood phylogenetic tree of Anguiliformes based on encoding genes revealed that C. erebennus was in the same clade as other species of Congridae. The results of this study will progress the future of evolutionary research and species identification.

SUBMITTER: Yan L

PROVIDER: S-EPMC9621232 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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Publications

The complete mitochondrial genome of <i>Conger erebennus</i> (Jordan & Snyder, 1901) (Anguilliformes: Congridae) from Liaoning Province, China.

Yan Long L Wang Weikuang W Liu Jie J Guo Dong D

Mitochondrial DNA. Part B, Resources 20221027 10

This study aims to explore the complete mitochondrial genome and phylogenetic relationship of <i>Conger erebennus</i> (Jordan & Snyder, 1901) (Anguilliformes: Congridae). The information about the mitogenome was obtained using Illumina's next-generation sequencing technologies. The results revealed that the length of the circular mitogenome was 18,777 bp and it contained 37 genes and three unidentical control regions (CRs). The mitogenome contained 62.78% AT bases with an anti-G bias similar to ...[more]

PMID: 36325287

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Project description:BackgroundThe whitespotted conger Conger myriaster (Brevoort) (Anguilliformes: Congridae) is an extremely marketable food fish, commonly consumed as sashimi or sushi in some Asian countries (i.e. Japan, Korea and China). Conger myriaster is also suspected as being an extremely important source of human anisakidosis. However, there is currently very little information on the levels of infection with ascaridoid nematode parasites in this economically important marine fish. The aims of the present study are to determine the species composition, prevalence and mean intensity of ascaridoid parasites of C. myriaster caught in the Zhoushan Fishery.ResultsA total of 1142 third-stage ascaridoid larvae were isolated from 204 C. myriaster. The overall prevalence of infection was 100% (mean intensity 5.6). Nine species of such larvae were accurately identified using integrative taxonomic techniques involving both morphological and genetic data; these included Anisakis pegreffii, A. typica and A. simplex (sensu stricto) × A. pegreffii, Hysterothylacium fabri, H. aduncum, H. sinense, H. amoyense, H. zhoushanense and Raphidascaris lophii. Although high levels of infection and species richness were revealed in C. myriaster, most of the ascaridoid parasites (1135 individuals) were collected from the body cavity and visceral organs of the fish and only seven individuals of A. pegreffii were found in the musculature.ConclusionsThis study represents the first report C. myriaster from the Zhoushan Fishery being heavily infected with third-stage ascaridoid larvae. Among the ascaridoid larvae parasitic in this fish, an important etiological agent of human anisakidosis, A. pegreffii (L3), represents the predominant species. The genus Hysterothylacium has the highest species richness, with H. fabri (L3) being the most prevalent species. This high level of infection of A. pegreffii (L3) in C. myriaster suggests a high risk of anisakidosis or associated allergies for people consuming raw or poorly cooked fish originating from this marine area. These findings provide important basic information on the occurrence and infection parameters of ascaridoid nematodes in this economically important marine fish. They also have significant implications for the prevention and control of human anisakidosis when conger eels from the Zhoushan Fishery are consumed.

Dataset Information

The complete mitochondrial genome of Conger erebennus (Jordan & Snyder, 1901) (Anguilliformes: Congridae) from Liaoning Province, China.

Publications

The complete mitochondrial genome of <i>Conger erebennus</i> (Jordan & Snyder, 1901) (Anguilliformes: Congridae) from Liaoning Province, China.

Similar Datasets

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