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Molecular comparison of geographically extreme populations of fish species of wide Indo-Pacific distribution

In: Israel Journal of Ecology and Evolution
Authors:
Yaron Tikochinski School of Marine Sciences, Ruppin Academic Centeryaront@ruppin.ac.il

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Marina Friling School of Marine Sciences, Ruppin Academic Center

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Nave Harush School of Marine Sciences, Ruppin Academic Center

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Roy Lizarovich School of Marine Sciences, Ruppin Academic Center

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Nitzan Manor School of Marine Sciences, Ruppin Academic Center

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Avishai Horsky School of Marine Sciences, Ruppin Academic Center

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Brenda Appelbaum-Golani Mt. Scopus Library, The Hebrew University of Jerusalem

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Daniel Golani Department of Ecology, Evolution and Behavior and the National Natural History Collections, The Hebrew University of Jerusalem

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A total of six Red Sea inshore fish species with wide Indo-Pacific distribution, including Lessepsian migrants that reached the Mediterranean Sea via the Suez Canal, were studied and compared genetically to conspecific populations from Japan and the Seychelles. Examination of the cytochrome c oxidase 1 (COI) gene of Apogon cyanosoma, Sargocentron rubrum, Upeneus moluccensis, Spratelloide sdelicatulus, Gerres oyena and Terapon jarbua from Japan, the Red Sea, the Seychelles and the Mediterranean revealed that in five out of six fish species, a difference greater than 4% was found. These results indicate the importance of DNA genetic analysis in revealing possible cryptic species and supplementing classic taxonomic studies, as well as contributing to a reappraisal of the zoogeography and evolution of Indo-Pacific ichthyofauna and enhancing our understanding of fish biodiversity.

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