Sepahvand, V. & S. Shahabi. (2021). First molecular evidence for two new associate copepods of genus Clausidium Kossmann, 1874 (Copepoda: Cyclopoida: Clausidiidae) from the Persian Gulf and Gulf of Oman. Nauplius. 29:1-8. e2021019. Apr 2021.

409467

10.1590/2358-2936e2021019  [view]

Sepahvand, V. & S. Shahabi

2021

29:1-8. e2021019. Apr 2021

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Clausidium Kossman, 1874 is a genus of copepods that is found in subtropical to temperate coastal areas. All species of the genus occur on the bodies of mud shrimp of the families Callianassidae and Upogebiidae. Based on morphological data from light scanning and confocal laser scanning microscopy, there are four species of Clausidium copepod in Iran. In this study we address Clausidium iranensis Sepahvand, Kihara and Boxshall, 2019 and Clausidium persiaensis Sepahvand and Kihara, 2017 that were reported on the body of the burrowing shrimps Neocallichirus jousseaumei (Nobili, 1904) and Callianidea typa Milne Edwards, 1837, respectively. We undertook analyses of mitochondrial DNA gene sequences (CO1) to evaluate taxonomic status and taxonomic relationships of the Clausidium species. The result demonstrates that two major clades, with strong support, can be identified within the Clausidium copepods in the southern waters of Iran, representing distinct taxonomic entities at the species rank. Our data indicate that CO1 can be a powerful tool for species identification and delimitation. In the case of Clausidium copepods, the general utility of CO1 for taxonomic relationship inferences within a genus or a family is still under investigated. Our study adds the first genetic data from these copepods from the Persian Gulf and Gulf of Oman.

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