Novel approach identifies SNPs in SLC2A10 and KCNK9 with evidence for parent-of-origin effect on body mass index

Clive J Hoggart, Giulia Venturini, Massimo Mangino, Felicia Gomez, Giulia Ascari, Jing Hua Zhao, Alexander Teumer, Thomas W Winkler, Natalia Tšernikova, Jian'an Luan, Evelin Mihailov, Georg B Ehret, Weihua Zhang, David Lamparter, Tõnu Esko, Aurelien Macé, Sina Rüeger, Pierre-Yves Bochud, Matteo Barcella, Yves DauvilliersBeben Benyamin, David M Evans, Caroline Hayward, Mary F Lopez, Lude Franke, Alessia Russo, Iris M Heid, Erika Salvi, Sailaja Vendantam, Dan E Arking, Eric Boerwinkle, John C Chambers, Giovanni Fiorito, Harald Grallert, Simonetta Guarrera, Georg Homuth, Jennifer E Huffman, David Porteous, Darius Moradpour, Alex Iranzo, Johannes Hebebrand, John P Kemp, Gert J Lammers, Vincent Aubert, Markus H Heim, Nicholas G Martin, Grant W Montgomery, Tim D Spector, Wei Yuan, Jordana T Bell, Generation Scotland Consortium

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47 Citations (Scopus)


The phenotypic effect of some single nucleotide polymorphisms (SNPs) depends on their parental origin. We present a novel approach to detect parent-of-origin effects (POEs) in genome-wide genotype data of unrelated individuals. The method exploits increased phenotypic variance in the heterozygous genotype group relative to the homozygous groups. We applied the method to >56,000 unrelated individuals to search for POEs influencing body mass index (BMI). Six lead SNPs were carried forward for replication in five family-based studies (of ∼4,000 trios). Two SNPs replicated: the paternal rs2471083-C allele (located near the imprinted KCNK9 gene) and the paternal rs3091869-T allele (located near the SLC2A10 gene) increased BMI equally (beta = 0.11 (SD), P<0.0027) compared to the respective maternal alleles. Real-time PCR experiments of lymphoblastoid cell lines from the CEPH families showed that expression of both genes was dependent on parental origin of the SNPs alleles (P<0.01). Our scheme opens new opportunities to exploit GWAS data of unrelated individuals to identify POEs and demonstrates that they play an important role in adult obesity.

Original languageEnglish
Article numbere1004508
Number of pages12
JournalPL o S Genetics
Issue number7
Publication statusPublished - 1 Jul 2014


  • Adult
  • Body Mass Index
  • European Continental Ancestry Group
  • Female
  • Gene Expression Regulation
  • Genetic Predisposition to Disease
  • Genome-Wide Association Study
  • Genomic Imprinting
  • Genotype
  • Glucose Transport Proteins, Facilitative
  • Humans
  • Male
  • Obesity
  • Polymorphism, Single Nucleotide
  • Potassium Channels, Tandem Pore Domain


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