Abstract
The Suez Gulf is one of the most important water bodies north of the Red Sea that contribute significantly in fish production in Egypt. The current study represents the first molecular identification of marine fish species from the Suez Gulf in Egypt based on DNA barcoding. A total of 96 DNA barcodes using a 662 bp-long fragment of the mitochondrial cytochrome oxidase subunit I (COI) gene were generated from 32 species that represent 26 genera and 19 families. The average genetic divergence based on Kimura two-parameter model between families and species were 0.274 and 0.256, respectively. The genetic distance among families varied greatly with the lowest genetic distance of 0.190 obtained between Carangidae and Atherindae, while Sphyraenidae and Moronidae had genetic distance of 0.472. The percent GC content was above average across species and ranged between 51.74% in Acanthopagrus bifasciatus and 66.37% in Lagocephalus guentheri. The Neighbor Joining tree showed clear clustering of the 19 fish families with species of the same family formed a single cluster. The findings of the current study support that COI barcode effectively identified Suez Gulf fish species. Moreover, the results of the current study will establish the first DNA barcode records for Suez Gulf fishes in Egypt which will contribute in future fish species identification in the Suez Gulf and the Red Sea.
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ACKNOWLEDGMENTS
We deeply thank Dr. Ahmed Mamoon (Faculty of Agriculture Al-Azhar University, Nasr City, Cairo, Egypt) for his assistance in sequencing procedure.
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Statement on the welfare of animals. Ethical approval did not require as the samples were collected from the commercial fisheries then transferred frozen to the laboratory.
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Abbas, E.M., Ismail, M., El-Ganainy, A. et al. First DNA Barcoding-based Inventory of Suez Gulf Fishes in Egypt and its Implication for Species Diversity. J. Ichthyol. 61, 386–395 (2021). https://doi.org/10.1134/S0032945221030012
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DOI: https://doi.org/10.1134/S0032945221030012