Echoes from the past: a genetic trace of native brown trout in the Italian Alps

Autor: Stefani, Fabrizio, Anzani, Antonella, Marieni, Alessandro
Rok vydání: 2019
Předmět:
Zdroj: Environmental biology of fishes (Dordr., Online) 102 (2019): 1327–1335. doi:10.1007/s10641-019-00899-y
info:cnr-pdr/source/autori:Stefani, Fabrizio and Anzani, Antonella and Marieni, Alessandro/titolo:Echoes from the past: a genetic trace of native brown trout in the Italian Alps/doi:10.1007%2Fs10641-019-00899-y/rivista:Environmental biology of fishes (Dordr., Online)/anno:2019/pagina_da:1327/pagina_a:1335/intervallo_pagine:1327–1335/volume:102
ISSN: 1573-5133
0378-1909
DOI: 10.1007/s10641-019-00899-y
Popis: Mitochondrial dloop and nuclear tnfa II sequences were sequenced from brown trout collected in the Vesta River (Italian Alps), situated in the middle of a Pleistocene ice free refugia area east of the Lake Garda. Haplotypes belonging to the native Adriatic lineage were mixed with other from the Atlantic and Marble lineages. A probabilistic approach, based on simulations, indicated the likelihood of a past introgression of Atlantic haplotypes into native populations belonging to the Adriatic lineage. These results argue in favor of a past natural presence of brown trout in the Italian Alps, in particular in ice free refugia areas, which have been almost completely wiped out by the massive and extensive introduction of Atlantic hatchery stocks.
Databáze: OpenAIRE
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