Assessing Evolutionary Significant Units (ESU) of the Endangered Freshwater Pearl Mussel (<i>Margaritifera margaritifera</i>) in Southeast Norway on the Basis of Genetic Analysis.

ABSTRACT: A total of 312 specimens of freshwater pearl mussel (Margaritifera margaritifera) were sampled from 11 populations, located in four different river systems in Southeast Norway, and analyzed for 11 simple sequence repeat (SSR) (microsatellite) markers. All study populations have landlocked brown trout (Salmo trutta) as the only possible host. Several populations had experienced recruitment failure, probably due to low pH (about 6.0) and calcium concentration. STRUCTURE clustering analysis revealed two genetic clusters, of which one cluster occurred mainly in the western river systems, and totally dominated in one population (Fallselva (A-FAL)) that had higher genetic diversity than the others. Cluster 2 completely dominated in the populations of the eastern river systems, and

SUBMITTER: Linlokken AN 

PROVIDER: S-EPMC7565849 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature