caa a22 4500 445857889 CHVBK 20180317145434.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10592-011-0224-y doi (NATIONALLICENCE)springer-10.1007/s10592-011-0224-y Empirical assessment of software efficiency and accuracy to detect introgression under variable stocking scenarios in brook charr ( Salvelinus fontinalis ) [Elektronische Daten] [A. Marie, L. Bernatchez, D. Garant] Stocking wild populations with domesticated fish is a common practice that promotes variable levels of introgression depending on the stocking intensity. The detection of hybridization and introgression has recently benefited from the application of Bayesian techniques implemented in various software. However, few studies have assessed their efficiency under various scenarios of stocking in the wild. The objective of this study is to assess quantitatively the effects of using two of the most widely distributed software, Structure and NewHybrids, on the level of introgression detected in wild brook charr (Salvelinus fontinalis) subjected to variable stocking intensities. We first found differences in the efficiency of software assignments based on simulated individuals, with Structure performing better than NewHybrids. However, NewHybrids showed higher assignments accuracy than Structure for the same sets of individuals. Thus, our results suggest that these software should be used in combination to assess the effects of stocking. Indeed, Structure is particularly relevant to evaluate the presence of hybrids in wild populations, whereas NewHybrids might be preferred to accurately assess the number of hybrids present in a sample. When applied to wild populations, Structure assigned more individuals than NewHybrids to the wild category. Moreover, the proportions of assigned domestic and hybrid individuals were higher in more intensively stocked lakes, whereas the opposite trend was observed for wild individuals. Springer Science+Business Media B.V., 2011 Admixture nationallicence Brook charr nationallicence Microsatellites nationallicence N ew H ybrids nationallicence Stocking nationallicence S tructure nationallicence Marie A. Département de biologie, Université Sherbrooke, J1K 2R1, Sherbrooke, QC, Canada aut Bernatchez L. IBIS (Institut de Biologie Intégrative et des Systèmes), Pavillon Charles-Eugène-Marchand, Université Laval, G1V 0A6, Québec, QC, Canada aut Garant D. Département de biologie, Université Sherbrooke, J1K 2R1, Sherbrooke, QC, Canada aut Conservation Genetics Springer Netherlands 12/5(2011-10-01), 1215-1227 1566-0621 12:5<1215 2011 12 10592 https://doi.org/10.1007/s10592-011-0224-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10592-011-0224-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Marie A. Département de biologie, Université Sherbrooke, J1K 2R1, Sherbrooke, QC, Canada aut NATIONALLICENCE 700 1- Bernatchez L. IBIS (Institut de Biologie Intégrative et des Systèmes), Pavillon Charles-Eugène-Marchand, Université Laval, G1V 0A6, Québec, QC, Canada aut NATIONALLICENCE 700 1- Garant D. Département de biologie, Université Sherbrooke, J1K 2R1, Sherbrooke, QC, Canada aut NATIONALLICENCE 773 0- Conservation Genetics Springer Netherlands 12/5(2011-10-01), 1215-1227 1566-0621 12:5<1215 2011 12 10592 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer