Claudia Sevillano’s paper ‘Empirical determination of breed-of-origin of alleles in three-breed cross pigs’ is among the top three highly accessed articles in Genetics Selection Evolution. As Breed4Food we are proud of this accomplishment.
Together with Jeremie Vandenplas, John Bastiaansen and Mario Calus, Claudia Sevillano investigated the performance of an approach that assigns breed-of-origin of alleles in real data of three-breed cross pigs. Their research is part of the LocalPork project with partners Wageningen University and Research, University of Viçosa, Topigs Norsvin, and Topigs Norsvin do Brasil. The project was supported by NWO and Breed4Food.
Including crossbred animals
Although breeding programs for pigs and poultry aim at improving crossbred performance, they mainly use training populations that consist of purebred animals. For some traits, for example residual feed intake, the genetic correlation between purebred and crossbred performance is low. Therefore, including crossbred animals in the training population is required. To estimate the breed-specific effects of alleles in a crossbred population, the breed-of-origin of alleles in crossbred animals must be known.
Adapt to client environments
Interest of breeding companies is shifting towards clients performance. In the end that is where genetic trend should be expressed. The beauty of Claudia’s work is that traits of crossbred animals in the high plains of Mexico can be measured, and that alleles that do well there can be traced back to high health purebred populations in cold Norway and Canada. Selection and sorting of animals can so be optimally adapted to a range of client environments.
Source: Sevillano, C.A., Vandenplas, J., Bastiaansen, W.M. and Calus, M.P.L., Empirical determination of breed-of-origin of alleles in three-breed cross pigs. Genetics Selection Evolution, 2016. 48:55. DOI: 10.1186/s12711-016-0234-9