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Salmo macrostigma (Teleostei, Salmonidae): Nothing more than a brown trout ( S. trutta ) lineage?
Author(s) -
Tougard Christelle,
Justy Fabienne,
Guinand Bruno,
Douzery Emmanuel J. P.,
Berrebi Patrick
Publication year - 2018
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.13751
Subject(s) - salmo , biology , brown trout , lineage (genetic) , trout , zoology , salmonidae , teleostei , cytochrome b , mitochondrial dna , evolutionary biology , fishery , fish <actinopterygii> , genetics , gene
We examined specimens of the macrostigma trout Salmo macrostigma , which refers to big black spots on the flanks, to assess whether it is an example of taxonomic inflation within the brown trout Salmo trutta complex. Using new specimens, publicly available data and a mitogenomic protocol to amplify the control and cytochrome b regions of the mitochondrial genome from degraded museum samples, including one syntype specimen, the present study shows that the macrostigma trout is not a valid species. Our results suggest the occurrence of a distinct evolutionary lineage of S. trutta in North Africa and Sicily. The name of the North African lineage is proposed for this lineage, which was found to be sister to the Atlantic lineage of brown trout, S. trutta .