Novel recessive locus for body mass index in childhood asthma.

Lee, Sanghun; Lasky-Su, Jessica; Won, Sungho; Laurie, Cecelia; Celedón, Juan Carlos; Lange, Christoph; Weiss, Scott; Hecker, Julian · Thorax · 2021

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Abstract

Most genome-wide association studies of obesity and body mass index (BMI) have so far assumed an additive mode of inheritance in their analysis, although association testing supports a recessive effect for some of the established loci, for example, rs1421085 in <i>FTO</i> In two whole-genome sequencing (WGS) studies of children with asthma and their parents (892 Costa Rican trios and 286 North American trios), we discovered an association between a locus (rs9292139) in <i>LOC102724122</i> and BMI that reaches genome-wide significance under a recessive model in the combined analysis. As the association does not achieve significance under an additive model, our finding illustrates the benefits of the recessive model in WGS analyses.

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