01435naa a2200253 a 450000100080000000500110000800800410001902400580006010000150011824501010013326000090023452006860024365300150092965300180094465300130096265300250097565300240100070000140102470000220103870000230106070000230108370000230110677300520112915968192025-06-12 2008 bl uuuu u00u1 u #d7 ahttps://doi.org/10.1111/j.1365-2052.2008.01769.x2DOI1 aLIU, G. E. aCharacterization of a novel microdeletion polymorphism on BTA5 in cattle.h[electronic resource] c2008 aWe present a detailed breakpoint mapping and population frequency analysis of a 214-kb microdeletion that removes multiple olfactory receptor genes. Using progressive rounds of PCR assays, we mapped the upstream and downstream breakpoints of this microdeletion event to 1 and 12 kb genomic regions, respectively. We developed PCR-based genotyping assays, characterized a dairy cattle panel of 96 samples and found that the frequency of the deletion allele was over 51%. Our results indicated that this microdeletion is an ancient event occurring in one of the earlier founders, and that it has been stably inherited across generations in the North American dairy cattle population. aBreakpoint aCattle genome aDeletion aPopulation frequency aStructural variants1 aLI, R. W.1 aSONSTEGARD, T. S.1 aMATUKUMALLI, L. K.1 aSILVA, M. V. G. B.1 aVAN TASSELL, C. P. tAnimal Geneticsgv. 39, n. 6, p. 655-658, 2008.