LDSO : A progroam to simulate pedigrees and molecular information under various evolutionary forces
2012
Ytournel, Florence, F. | Teyssedre, Simon, S. | Roldan, Dana, D. | Erbe, M., M. | Simianer, H., H. | Boichard, Didier | Gilbert, Hélène | Druet, Tom, T. | Legarra, Andres | Génétique Animale et Biologie Intégrative (GABI) ; Institut National de la Recherche Agronomique (INRA)-AgroParisTech | Station d'Amélioration Génétique des Animaux (SAGA) ; Institut National de la Recherche Agronomique (INRA) | Departement of Animals Science ; Georg-August-University of Göttingen = Georg-August-Universität Göttingen | Department of Animals Science ; Georg-August-University of Göttingen = Georg-August-Universität Göttingen
Simulations are a major tool to evaluate new statistical methods and optimize experimental designs in the genomic era. However, this can only be achieved when the simulations are close enough to reality, as well as diverse enough to be realistic. For mapping studies, it is thus critical to re-create as much as possible the forces generating linkage (mutation, random drift, changes in population sizes, selection and pedigree structure) and the mechanisms producing trait genetic architecture (additivity, dominance, epistasis). We present here a computer program (ldso) simulating these phenomena. Optional outputs provide statistics on the linkage disequilibrium (LD) structure and the identity by descent between chromosomal segments, facilitating further data analyses.Furthermore, ldso enables the simulation of genomic data in known pedigrees, which sticks as precisely as possible to recent population history and structures of the long-range LD, allowing optimization of fine-mapping strategies.
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