Evidence of a genetically distinct population of Vrljika softmouth trout Salmo obtusirostris Heckel evolved by vicariance
| Autor: | Ivan Bogut, Aleš Snoj, S. Sušnik |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
education.field_of_study
biology Balkan Peninsula conservation freshwater fish habitat fragmentation molecular classification River Vrljika Ecology Cytochrome b Population Zoology Aquatic Science biology.organism_classification Salmo obtusirostris Trout Brown trout Freshwater fish Vicariance Salmo education Ecology Evolution Behavior and Systematics |
| Zdroj: | Journal of Fish Biology. 72:1945-1959 |
| ISSN: | 1095-8649 0022-1112 |
| DOI: | 10.1111/j.1095-8649.2008.01816.x |
| Popis: | Mitochondrial DNA haplotypes (control region, partial cytochrome b and ATPase6 genes) indicate a sister relationship between Vrljika and Neretva softmouth (Adriatic) trout Salmo obtusirostris. This relationship was supported by a tree of individuals based on microsatellite results [allele sharing distances (DAS)], which revealed three distinctive clusters, corresponding to Jadro softmouth, Neretva brown trout Salmo trutta and Neretva softmouth trout. Within the latter taxon, Vrljika trout are clearly separated from other trout. The genetic results contradict the synonymy of Jadro with Vrljika softmouth trout, as recently proposed in the Red Book of Freshwater Fish in Croatia. Vrljika softmouth trout appear to have originated from a vicariance that split a common ancestor into large (Neretva) and small (Vrljika) fragmented populations 135 000– 270 000 years ago. Vrljika softmouth trout can be distinguished by an array of derived phenotypic and molecular character states. For conservation, this population should be recognized formally at the same taxonomic level as the other geographically separated populations of softmouth trout. |
| Databáze: | OpenAIRE |
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