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Issue: Vol. 4450 No. 1: 23 Jul. 2018
Type: Article
Published: 2018-07-23
DOI: 10.11646/zootaxa.4450.1.8
Page range: 115–124
Abstract views: 112
PDF downloaded: 1

Molecular phylogenetic analysis of the catfish species Auchenoglanis occidentalis (Valenciennes, 1840) (Pisces: Claroteidae) from Lake Turkana in East Africa: taxonomic implications

Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, Hubei Province, People’s Republic of China. Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan CN-430074, Hubei Province, People’s Republic of China University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China. Ichthyology Section, National Museums of Kenya, P.O. Box 40658, Nairobi, Kenya
Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, Hubei Province, People’s Republic of China. Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan CN-430074, Hubei Province, People’s Republic of China
Ichthyology Section, National Museums of Kenya, P.O. Box 40658, Nairobi, Kenya
Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, Hubei Province, People’s Republic of China. Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan CN-430074, Hubei Province, People’s Republic of China
Pisces Lake Turkana Auchenoglanis occidentalis COI phylogenetic analysis taxonomic implication

Abstract

Cytochrome c oxidase subunit I (COI) gene sequences of two specimens here recognized as Auchenoglanis occidentalis from Lake Turkana in the Ethiopian section were determined. A COI gene-based phylogenetic analysis was performed for these along with sequences of African catfish species from the family Clarotidae available in GenBank. Based on results of this analysis, it is concluded that (1) the currently identified A. occidentalis is a species complex that includes several distinct species; (2) the Niger River basin harbors two distinct species of Auchenoglanis, one of which occurs in Lake Turkana, as well as A. biscutatus; and (3) A. sacchii is likely a valid species, but it is not the endemic species of Lake Turkana. It is suggested here that species diversity of Auchenoglanis requires further study based on molecular and morphological evidence.

 

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