A genome-wide scan for common alleles affecting risk for autism.

Authors:
Richard Anney Lambertus Klei Dalila Pinto Regina Regan Judith Conroy Tiago R Magalhaes Catarina Correia Brett S Abrahams Nuala Sykes Alistair T Pagnamenta Joana Almeida Elena Bacchelli Anthony J Bailey Gillian Baird Agatino Battaglia Tom Berney Nadia Bolshakova Sven Bölte Patrick F Bolton Thomas Bourgeron Sean Brennan Jessica Brian Andrew R Carson Guillermo Casallo Jillian Casey Su H Chu Lynne Cochrane Christina Corsello Emily L Crawford Andrew Crossett Geraldine Dawson Maretha de Jonge Richard Delorme Irene Drmic Eftichia Duketis Frederico Duque Annette Estes Penny Farrar Bridget A Fernandez Susan E Folstein Eric Fombonne Christine M Freitag John Gilbert Christopher Gillberg Joseph T Glessner Jeremy Goldberg Jonathan Green Stephen J Guter Hakon Hakonarson Elizabeth A Heron Matthew Hill Richard Holt Jennifer L Howe Gillian Hughes Vanessa Hus Roberta Igliozzi Cecilia Kim Sabine M Klauck Alexander Kolevzon Olena Korvatska Vlad Kustanovich Clara M Lajonchere Janine A Lamb Magdalena Laskawiec Marion Leboyer Ann Le Couteur Bennett L Leventhal Anath C Lionel Xiao-Qing Liu Catherine Lord Linda Lotspeich Sabata C Lund Elena Maestrini William Mahoney Carine Mantoulan Christian R Marshall Helen McConachie Christopher J McDougle Jane McGrath William M McMahon Nadine M Melhem Alison Merikangas Ohsuke Migita Nancy J Minshew Ghazala K Mirza Jeff Munson Stanley F Nelson Carolyn Noakes Abdul Noor Gudrun Nygren Guiomar Oliveira Katerina Papanikolaou Jeremy R Parr Barbara Parrini Tara Paton Andrew Pickles Joseph Piven David J Posey Annemarie Poustka Fritz Poustka Aparna Prasad Jiannis Ragoussis Katy Renshaw Jessica Rickaby Wendy Roberts Kathryn Roeder Bernadette Roge Michael L Rutter Laura J Bierut John P Rice Jeff Salt Katherine Sansom Daisuke Sato Ricardo Segurado Lili Senman Naisha Shah Val C Sheffield Latha Soorya Inês Sousa Vera Stoppioni Christina Strawbridge Raffaella Tancredi Katherine Tansey Bhooma Thiruvahindrapduram Ann P Thompson Susanne Thomson Ana Tryfon John Tsiantis Herman Van Engeland John B Vincent Fred Volkmar Simon Wallace Kai Wang Zhouzhi Wang Thomas H Wassink Kirsty Wing Kerstin Wittemeyer Shawn Wood Brian L Yaspan Danielle Zurawiecki Lonnie Zwaigenbaum Catalina Betancur Joseph D Buxbaum Rita M Cantor Edwin H Cook Hilary Coon Michael L Cuccaro Louise Gallagher Daniel H Geschwind Michael Gill Jonathan L Haines Judith Miller Anthony P Monaco John I Nurnberger Andrew D Paterson Margaret A Pericak-Vance Gerard D Schellenberg Stephen W Scherer James S Sutcliffe Peter Szatmari Astrid M Vicente Veronica J Vieland Ellen M Wijsman Bernie Devlin Sean Ennis Joachim Hallmayer

Hum Mol Genet 2010 Oct 27;19(20):4072-82. Epub 2010 Jul 27.

Department of Psychiatry, School of Medicine, Trinity College, Dublin 8, Ireland.

Although autism spectrum disorders (ASDs) have a substantial genetic basis, most of the known genetic risk has been traced to rare variants, principally copy number variants (CNVs). To identify common risk variation, the Autism Genome Project (AGP) Consortium genotyped 1558 rigorously defined ASD families for 1 million single-nucleotide polymorphisms (SNPs) and analyzed these SNP genotypes for association with ASD. In one of four primary association analyses, the association signal for marker rs4141463, located within MACROD2, crossed the genome-wide association significance threshold of P < 5 × 10(-8). When a smaller replication sample was analyzed, the risk allele at rs4141463 was again over-transmitted; yet, consistent with the winner's curse, its effect size in the replication sample was much smaller; and, for the combined samples, the association signal barely fell below the P < 5 × 10(-8) threshold. Exploratory analyses of phenotypic subtypes yielded no significant associations after correction for multiple testing. They did, however, yield strong signals within several genes, KIAA0564, PLD5, POU6F2, ST8SIA2 and TAF1C.

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October 2010
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