RT Journal A1 Cryns, Kim A1 Van Spaendonck, Michiel P. A1 Flothmann, Kris A1 van Alphen, Arjan M. A1 Van De Heyning, Paul H. A1 Timmermans, Jean-Pierre A1 De Zeeuw, Chris I. A1 Van Camp, Guy T1 Vestibular Dysfunction in the Epistatic circler Mouse Is Caused by Phenotypic Interaction of One Recessive Gene and Three Modifier Genes JF Genome Research JO Genome Research YR 2002 FD April 01 VO 12 IS 4 SP 613 OP 617 DO 10.1101/gr.218402 UL http://genome.cshlp.org/content/12/4/613.abstract AB Vestibular dysfunction is a frequent clinical problem, leading to dizziness and imbalance. Genes play an important role in its etiology, but the genetics are complex and poorly understood. In this study we have analyzed the complex inheritance pattern in the Epistatic circler mouse, which shows circling behavior indicative of vestibular dysfunction in the mouse. This phenotype exists in a proportion of the F2-generation from an intercross betweenC57L/J and SWR/J mouse strains. Genetic investigation indicates that the circling behavior is caused by a major recessively inherited gene derived from the SWR/J strain (theEcs-gene) in combination with at least three different modifier genes derived from C57L/J (the Ecl-genes). Genetic mapping made it possible to localize the Ecs-gene to chromosome 14 and the Ecl-genes to chromosome 3, 4, and 13. This study illustrates the feasibility of identifying genes for multifactorial traits in mice.