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Genetic Diversity and Population Structure of Commercial Eel Conger myriaster (Anguilliformes: Congridae) Along the Coasts of China Based on Complete Mitochondrial Cyt b Sequences

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Udgivet i:Fishes vol. 10, no. 2 (2025), p. 41
Hovedforfatter: Xiao, Peiyi
Andre forfattere: Yang, Tianyan
Udgivet:
MDPI AG
Fag:
East China Sea
United States > US
Pacific Ocean
Shanghai China
China
Japan
Geographical distribution
Population differentiation
Fish
Marine fish
Cytochrome
Coastal waters
Catadromous species
Genetic variation
Genetic structure
Haplotypes
Mitochondrial DNA
Coasts
Genetic diversity
Fishery resources
Population genetics
Cytochromes
Pleistocene
Information processing
Economic importance
Genetic analysis
Phylogenetics
Cytochrome b
Biodiversity
Fisheries
Aquaculture
Marine fishes
Population structure
Demography
Nucleotides
Conger myriaster
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Resumen:AbstractTo better understand the population genetic structure and molecular biological background of Conger myriaster, an economically important marine fish, a total of 217 complete mitochondrial cytochrome b (Cyt b) gene sequences with a length of 1142 bp were obtained to assess the genetic diversity, population differentiation, and demographic history of seven populations along the coastal waters of China. The analysis of population genetic diversity showed a high level of haplotype diversity and a low level of nucleotide diversity. The analysis of molecular variance (AMOVA) and the genetic differentiation coefficient (FST) showed that most of the variation came from within populations, and the geographic distribution of haplotypes revealed non-significant genetic differentiation among populations. Tracing the population dynamic history, the results of the neutrality test and mismatch analysis suggested that the populations of C. myriaster in coastal China seas had experienced demographic expansion, and the expansion time can be traced back to the middle Pleistocene period. These results provide supplemental information for the sustainable utilization of fishery resources of this species.
ISSN:2410-3888
DOI:10.3390/fishes10020041
Fuente:Biological Science Database