Salmo macrostigma (Teleostei, Salmonidae): Nothing more than a brown trout (S. trutta) lineage?

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 t...

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Bibliographic Details
Published in:Journal of fish biology 2018-08, Vol.93 (2), p.302-310
Main Authors: Tougard, Christelle, Justy, Fabienne, Guinand, Bruno, Douzery, Emmanuel J. P., Berrebi, Patrick
Format: Article
Language:English
Subjects:
Biochemistry, Molecular Biology
Biodiversity
Biological evolution
conservation
Cytochrome
Cytochrome b
Cytochromes
Fish
Freshwater fishes
Genomes
Life Sciences
Mitochondria
Molecular biology
mtDNA
Museums
North Africa
Populations and Evolution
Salmo
Salmo trutta
Sicily
syntype
Systematics, Phylogenetics and taxonomy
taxonomic status
Trout
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Summary: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.
ISSN:0022-1112
1095-8649
DOI:10.1111/jfb.13751