University of Isfahan Taxonomy and Biosystematics 3115-9001 11 40 2019 09 23 Phylogenetic Relationships of the Genus Turcinoemacheilus in Iran using Osteological Characteristics بررسی روابط تبارزایی جنس Turcinoemacheilus در ایران براساس صفات استخوان‌‌شناسی 47 58 25110 10.22108/tbj.2020.124047.1118 EN Nasrin Nikmehr Ph. D. Student of Aquatic Ecology of Fisheries, Faculty of Natural Resources, University of Tehran, Iran Soheil Eagderi Associate Professor, Department of Fisheries, Faculty of Natural Resources, University of Tehran, Iran Hadi Poorbagher Assistant Professor, Department of Fisheries, Faculty of Natural Resources, University of Tehran, Iran Hamid Farahmand Professor, Department of Fisheries, Faculty of Natural Resources, University of Tehran, Iran Journal Article 2020 07 27 Abstract This study was conducted to examine the phylogenetic relationship of the genus Turcinoemacheilus in Iran based on osteological characteristics. A total of 25 fish specimens of four species belonging to the genus Turcinoemacheilus from Tigris and Isfahan basins were considered as in-group and Cobitis linea as out-group. The skeletal elements were examined after clearing and staining. A total of 19 character-states were described that showed differences between the studied taxa. Phylogenetic analysis was performed using osteological characters with the maximum parsimony method. Based on the results, the most parsimonious tree with a length of 29, the consistency index of 1, and a retention index of 1 was obtained. Turcinoemacheilus hafezi and T. bahaii with 76% support were in a sister group and the two species of T. kosswigi and T. saadii with 97% support were in another clad. The presence of the lateral fontanel in T. hafezi, the overlap of the internal lateral-wall of autoplatinii with posterior lateral-wall of the ethmoid, symmetry of the posterior part of the autoplatinii and divergence of the hemal spin’s process in T. kosswigi, ratio of the ascending process to the horizontal process of the maxillary, and beginning of the first dorsal-fin petrigiophore to vertebra 17 in T. bahaii were distinguishing osteological characters of the studied species.

https://tbj.ui.ac.ir/article_25110_512d6814b13bc23b713927f1f548802d.pdf