caa a22 4500 445857153 CHVBK 20180317145431.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10592-011-0255-4 doi (NATIONALLICENCE)springer-10.1007/s10592-011-0255-4 Removing exogenous information using pedigree data [Elektronische Daten] [Carmen Amador, Miguel Toro, Jesús Fernández] Management of certain populations requires the preservation of its pure genetic background. When, for different reasons, undesired alleles are introduced, the original genetic conformation must be recovered. The present study tested, through computer simulations, the power of recovery (the ability for removing the foreign information) from genealogical data. Simulated scenarios comprised different numbers of exogenous individuals taking part of the founder population and different numbers of unmanaged generations before the removal program started. Strategies were based on variables arising from classical pedigree analyses such as founders' contribution and partial coancestry. The efficiency of the different strategies was measured as the proportion of native genetic information remaining in the population. Consequences on the inbreeding and coancestry levels of the population were also evaluated. Minimisation of the exogenous founders' contributions was the most powerful method, removing the largest amount of genetic information in just one generation. However, as a side effect, it led to the highest values of inbreeding. Scenarios with a large amount of initial exogenous alleles (i.e. high percentage of non native founders), or many generations of mixing became very difficult to recover, pointing out the importance of being careful about introgression events in populations where these are undesired. Springer Science+Business Media B.V., 2011 Undesired introgression nationallicence Genetic recovery nationallicence Amador Carmen Departamento de Mejora Genética Animal, INIA, Ctra. De La Coruña Km. 7.5, 28040, Madrid, Spain aut Toro Miguel ETSIA, UPM, Ciudad Universitaria, 28040, Madrid, Spain aut Fernández Jesús Departamento de Mejora Genética Animal, INIA, Ctra. De La Coruña Km. 7.5, 28040, Madrid, Spain aut Conservation Genetics Springer Netherlands 12/6(2011-12-01), 1565-1573 1566-0621 12:6<1565 2011 12 10592 https://doi.org/10.1007/s10592-011-0255-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10592-011-0255-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Amador Carmen Departamento de Mejora Genética Animal, INIA, Ctra. De La Coruña Km. 7.5, 28040, Madrid, Spain aut NATIONALLICENCE 700 1- Toro Miguel ETSIA, UPM, Ciudad Universitaria, 28040, Madrid, Spain aut NATIONALLICENCE 700 1- Fernández Jesús Departamento de Mejora Genética Animal, INIA, Ctra. De La Coruña Km. 7.5, 28040, Madrid, Spain aut NATIONALLICENCE 773 0- Conservation Genetics Springer Netherlands 12/6(2011-12-01), 1565-1573 1566-0621 12:6<1565 2011 12 10592 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer