TY - JOUR T1 - Enrichment of low-frequency functional variants revealed by whole-genome sequencing of multiple isolated European populations. JF - Nat Commun Y1 - 2017 A1 - Xue, Yali A1 - Mezzavilla, Massimo A1 - Haber, Marc A1 - McCarthy, Shane A1 - Chen, Yuan A1 - Narasimhan, Vagheesh A1 - Gilly, Arthur A1 - Ayub, Qasim A1 - Colonna, Vincenza A1 - Southam, Lorraine A1 - Finan, Christopher A1 - Massaia, Andrea A1 - Chheda, Himanshu A1 - Palta, Priit A1 - Ritchie, Graham A1 - Asimit, Jennifer A1 - Dedoussis, George A1 - Gasparini, Paolo A1 - Palotie, Aarno A1 - Ripatti, Samuli A1 - Soranzo, Nicole A1 - Toniolo, Daniela A1 - Wilson, James F A1 - Durbin, Richard A1 - Tyler-Smith, Chris A1 - Zeggini, Eleftheria KW - European Continental Ancestry Group KW - Gene Frequency KW - Genetic Variation KW - Genetics, Population KW - Genome, Human KW - Humans KW - Polymorphism, Single Nucleotide KW - Whole Genome Sequencing AB -

The genetic features of isolated populations can boost power in complex-trait association studies, and an in-depth understanding of how their genetic variation has been shaped by their demographic history can help leverage these advantageous characteristics. Here, we perform a comprehensive investigation using 3,059 newly generated low-depth whole-genome sequences from eight European isolates and two matched general populations, together with published data from the 1000 Genomes Project and UK10K. Sequencing data give deeper and richer insights into population demography and genetic characteristics than genotype-chip data, distinguishing related populations more effectively and allowing their functional variants to be studied more fully. We demonstrate relaxation of purifying selection in the isolates, leading to enrichment of rare and low-frequency functional variants, using novel statistics, DVxy and SVxy. We also develop an isolation-index (Isx) that predicts the overall level of such key genetic characteristics and can thus help guide population choice in future complex-trait association studies.

VL - 8 U1 - http://www.ncbi.nlm.nih.gov/pubmed/28643794?dopt=Abstract ER - TY - JOUR T1 - A reference panel of 64,976 haplotypes for genotype imputation. JF - Nat Genet Y1 - 2016 A1 - McCarthy, Shane A1 - Das, Sayantan A1 - Kretzschmar, Warren A1 - Delaneau, Olivier A1 - Wood, Andrew R A1 - Teumer, Alexander A1 - Kang, Hyun Min A1 - Fuchsberger, Christian A1 - Danecek, Petr A1 - Sharp, Kevin A1 - Luo, Yang A1 - Sidore, Carlo A1 - Kwong, Alan A1 - Timpson, Nicholas A1 - Koskinen, Seppo A1 - Vrieze, Scott A1 - Scott, Laura J A1 - Zhang, He A1 - Mahajan, Anubha A1 - Veldink, Jan A1 - Peters, Ulrike A1 - Pato, Carlos A1 - van Duijn, Cornelia M A1 - Gillies, Christopher E A1 - Gandin, Ilaria A1 - Mezzavilla, Massimo A1 - Gilly, Arthur A1 - Cocca, Massimiliano A1 - Traglia, Michela A1 - Angius, Andrea A1 - Barrett, Jeffrey C A1 - Boomsma, Dorrett A1 - Branham, Kari A1 - Breen, Gerome A1 - Brummett, Chad M A1 - Busonero, Fabio A1 - Campbell, Harry A1 - Chan, Andrew A1 - Chen, Sai A1 - Chew, Emily A1 - Collins, Francis S A1 - Corbin, Laura J A1 - Smith, George Davey A1 - Dedoussis, George A1 - Dörr, Marcus A1 - Farmaki, Aliki-Eleni A1 - Ferrucci, Luigi A1 - Forer, Lukas A1 - Fraser, Ross M A1 - Gabriel, Stacey A1 - Levy, Shawn A1 - Groop, Leif A1 - Harrison, Tabitha A1 - Hattersley, Andrew A1 - Holmen, Oddgeir L A1 - Hveem, Kristian A1 - Kretzler, Matthias A1 - Lee, James C A1 - McGue, Matt A1 - Meitinger, Thomas A1 - Melzer, David A1 - Min, Josine L A1 - Mohlke, Karen L A1 - Vincent, John B A1 - Nauck, Matthias A1 - Nickerson, Deborah A1 - Palotie, Aarno A1 - Pato, Michele A1 - Pirastu, Nicola A1 - McInnis, Melvin A1 - Richards, J Brent A1 - Sala, Cinzia A1 - Salomaa, Veikko A1 - Schlessinger, David A1 - Schoenherr, Sebastian A1 - Slagboom, P Eline A1 - Small, Kerrin A1 - Spector, Timothy A1 - Stambolian, Dwight A1 - Tuke, Marcus A1 - Tuomilehto, Jaakko A1 - Van den Berg, Leonard H A1 - van Rheenen, Wouter A1 - Völker, Uwe A1 - Wijmenga, Cisca A1 - Toniolo, Daniela A1 - Zeggini, Eleftheria A1 - Gasparini, Paolo A1 - Sampson, Matthew G A1 - Wilson, James F A1 - Frayling, Timothy A1 - de Bakker, Paul I W A1 - Swertz, Morris A A1 - McCarroll, Steven A1 - Kooperberg, Charles A1 - Dekker, Annelot A1 - Altshuler, David A1 - Willer, Cristen A1 - Iacono, William A1 - Ripatti, Samuli A1 - Soranzo, Nicole A1 - Walter, Klaudia A1 - Swaroop, Anand A1 - Cucca, Francesco A1 - Anderson, Carl A A1 - Myers, Richard M A1 - Boehnke, Michael A1 - McCarthy, Mark I A1 - Durbin, Richard AB -

We describe a reference panel of 64,976 human haplotypes at 39,235,157 SNPs constructed using whole-genome sequence data from 20 studies of predominantly European ancestry. Using this resource leads to accurate genotype imputation at minor allele frequencies as low as 0.1% and a large increase in the number of SNPs tested in association studies, and it can help to discover and refine causal loci. We describe remote server resources that allow researchers to carry out imputation and phasing consistently and efficiently.

U1 - http://www.ncbi.nlm.nih.gov/pubmed/27548312?dopt=Abstract ER -