Genetic Characteristics and Phylogenetic Relationships of 18 Anchovy Species Based on Mitochondrial Genomes in the Seas Around China

ABSTRACT The anchovy family (Engraulidae) holds significant economic and ecological value in seas around China, playing a crucial role in fisheries and marine ecosystems in these regions. This study analyzed the complete mitochondrial genome data of 18 Engraulidae species from seas around China, int...

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Main Authors: Wenyu Sun, Yibang Wang, Hui Zhang
Format: Article
Language:English
Published: Wiley 2025-05-01
Series:Ecology and Evolution
Subjects:
Online Access:https://doi.org/10.1002/ece3.71496
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author Wenyu Sun
Yibang Wang
Hui Zhang
author_facet Wenyu Sun
Yibang Wang
Hui Zhang
author_sort Wenyu Sun
collection DOAJ
description ABSTRACT The anchovy family (Engraulidae) holds significant economic and ecological value in seas around China, playing a crucial role in fisheries and marine ecosystems in these regions. This study analyzed the complete mitochondrial genome data of 18 Engraulidae species from seas around China, integrating molecular evidence to systematically investigate mitochondrial genome structure, codon usage patterns, and phylogenetic relationships within the family. The mitochondrial genomes of Engraulidae exhibited a highly conserved structure, characterized by significant A + T richness and variable control region lengths. Codon usage analysis in seven Thryssa species revealed that base composition, particularly GC content at the third codon position (GC3s), along with purifying selection, jointly influenced codon usage patterns. Phylogenetic analyses supported the division of the 18 species into two subfamilies, Engraulinae and Coiliinae, and highlighted variability in the phylogenetic placement of Setipinna depending on the inclusion of third codon positions. Furthermore, the genus Thryssa was supported to be polyphyletic: T. baelama and T. kammalensis formed one clade, while T. dussumieri, T. hamiltonii, T. setirostris, T. vitrirostris, and T. mystax constituted a separate branch. These findings provide novel molecular evidence for species identification and the taxonomic classification of Engraulidae, while offering a foundation for further exploration of their evolutionary relationships and systematic taxonomy.
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spelling doaj-art-ce87f09972dc4d83b7447eddf6bb17fb2025-08-20T02:34:20ZengWileyEcology and Evolution2045-77582025-05-01155n/an/a10.1002/ece3.71496Genetic Characteristics and Phylogenetic Relationships of 18 Anchovy Species Based on Mitochondrial Genomes in the Seas Around ChinaWenyu Sun0Yibang Wang1Hui Zhang2Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology Chinese Academy of Sciences Qingdao ChinaKey Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology Chinese Academy of Sciences Qingdao ChinaKey Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology Chinese Academy of Sciences Qingdao ChinaABSTRACT The anchovy family (Engraulidae) holds significant economic and ecological value in seas around China, playing a crucial role in fisheries and marine ecosystems in these regions. This study analyzed the complete mitochondrial genome data of 18 Engraulidae species from seas around China, integrating molecular evidence to systematically investigate mitochondrial genome structure, codon usage patterns, and phylogenetic relationships within the family. The mitochondrial genomes of Engraulidae exhibited a highly conserved structure, characterized by significant A + T richness and variable control region lengths. Codon usage analysis in seven Thryssa species revealed that base composition, particularly GC content at the third codon position (GC3s), along with purifying selection, jointly influenced codon usage patterns. Phylogenetic analyses supported the division of the 18 species into two subfamilies, Engraulinae and Coiliinae, and highlighted variability in the phylogenetic placement of Setipinna depending on the inclusion of third codon positions. Furthermore, the genus Thryssa was supported to be polyphyletic: T. baelama and T. kammalensis formed one clade, while T. dussumieri, T. hamiltonii, T. setirostris, T. vitrirostris, and T. mystax constituted a separate branch. These findings provide novel molecular evidence for species identification and the taxonomic classification of Engraulidae, while offering a foundation for further exploration of their evolutionary relationships and systematic taxonomy.https://doi.org/10.1002/ece3.71496codon usageEngraulidaemitochondrial genomephylogeny
spellingShingle Wenyu Sun
Yibang Wang
Hui Zhang
Genetic Characteristics and Phylogenetic Relationships of 18 Anchovy Species Based on Mitochondrial Genomes in the Seas Around China
Ecology and Evolution
codon usage
Engraulidae
mitochondrial genome
phylogeny
title Genetic Characteristics and Phylogenetic Relationships of 18 Anchovy Species Based on Mitochondrial Genomes in the Seas Around China
title_full Genetic Characteristics and Phylogenetic Relationships of 18 Anchovy Species Based on Mitochondrial Genomes in the Seas Around China
title_fullStr Genetic Characteristics and Phylogenetic Relationships of 18 Anchovy Species Based on Mitochondrial Genomes in the Seas Around China
title_full_unstemmed Genetic Characteristics and Phylogenetic Relationships of 18 Anchovy Species Based on Mitochondrial Genomes in the Seas Around China
title_short Genetic Characteristics and Phylogenetic Relationships of 18 Anchovy Species Based on Mitochondrial Genomes in the Seas Around China
title_sort genetic characteristics and phylogenetic relationships of 18 anchovy species based on mitochondrial genomes in the seas around china
topic codon usage
Engraulidae
mitochondrial genome
phylogeny
url https://doi.org/10.1002/ece3.71496
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