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The landscape of autosomal-recessive pathogenic variants in European populations reveals phenotype-specific effects

By Hila Fridman, Helger G. Yntema, Reedik Magi, Reidar Andreson, Andres Metspalu, Massimo Mezzavila, Chris Tyler-Smith, Yali Xue, Shai Carmi, Ephrat Levy-Lahad, Christian Gilissen, Han Brunner

Posted 17 Nov 2020
bioRxiv DOI: 10.1101/2020.11.16.384206

The number and distribution of recessive alleles in the population for various diseases are not known at genome-wide-scale. Based on 6447 exome-sequences of healthy, genetically-unrelated Europeans of two distinct ancestries, we estimate that every individual is a carrier of at least 2 pathogenic variants in currently known autosomal recessive (AR) genes, and that 0.8-1% of European couples are at-risk of having a child affected with a severe AR genetic disorder. This risk is 16.5-fold higher for first cousins, but is significantly more increased for skeletal disorders and intellectual disabilities due to their distinct genetic architecture. ### Competing Interest Statement S.C. is a paid consultant to MyHeritage.

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