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1. Maps of open chromatin highlight cell type-restricted patterns of regulatory sequence variation at hematological trait loci

Author

Paul, Ds, Albers, Ca, Rendon, A, Voss, K, Stephens, J, Akkerman, Jan Willem N., Albers, Cornelis A., Ale, Algra, Abtehale Al Hussani, Hooman, Allayee, Franco, Anni, Asselbergs, Folkert W., Antony, Attwood, Beverley, Balkau, Stefania, Bandinelli, François, Bastardot, Saonli, Basu, Baumeister, Sebastian E., Jacques, Beckmann, Beben, Benyamin, Ginevra, Biino, Bis, Joshua C., Lorenzo, Bomba, Amélie, Bonnefond, Boomsma, Dorret I., Bradley, John R., François, Cambien, Chambers, John C., Marina, Ciullo, Cookson, William O., Francesco, Cucca, Ana, Cvejic, D'Adamo, ADAMO PIO, John, Danesh, Fabrice, Danjou, Debashish, Das, Gail, Davies, Paul IW de Bakker, de Boer, Rudolf A., Eco JC de Geus, Deary, Ian J., Dedoussis, George V., Panos, Deloukas, Maria, Dimitriou, Christian, Dina, Angela, Döring, Ulrich, Elling, David, Ellinghaus, Paul, Elliott, Gunnar, Engström, Jeanette, Erdmann, Tõnu, Esko, Evans, David M., Eyjolfsson, Gudmundur I., Mario, Falchi, Wei, Feng, Ferreira, Manuel A., Luigi, Ferrucci, Krista, Fischer, Folsom, Aaron R., Paolo, Fortina, Andre, Franke, Lude, Franke, Frazer, Ian H., Philippe, Froguel, Renzo, Galanello, Ganesh, Santhi K., Garner, Stephen F., Gasparini, Paolo, Bernd, Genser, Gibson, Quince D., Christian, Gieger, Girotto, Giorgia, Glazer, Nicole L., Martin, Gögele, Goodall, Alison H., Andreas, Greinacher, Gudbjartsson, Daniel F., Chris, Hammond, Harris, Sarah E., Jaana, Hartiala, Anna Liisa Hartikainen, Hazen, Stanley L., Heckbert, Susan R., Hedblad, Bo, Christian, Hengstenberg, Micha, Hersch, Hicks, Andrew A., Hilma, Holm, Jouke Jan Hottenga, Thomas, Illig, Marjo Riitta Jarvelin, Jennifer, Jolley, Steve, Jupe, Mika, Kähönen, Naoyuki, Kamatani, Stavroula, Kanoni, Kema, Ido P., Kemp, John P., Jyoti, Khadake, Kay Tee Khaw, Kleber, Marcus E., Kooner, Jaspal S., Peter, Kovacs, Brigitte, Kühnel, Marie Christine Kyrtsonis, Yann, Labrune, Vasiliki, Lagou, Claudia, Langenberg, Terho, Lehtimäki, Xinzhong, Li, Liming, Liang, Lifelines Cohort Study, Heather Lloyd Jones, Ruth JF Loos, Lopez, Lorna M., Thomas, Lumley, Leo Pekka Lyytikäinen, Winfried, Maerz, Reedik, Mägi, Massimo, Mangino, Martin, Nicholas G., Andrea, Maschio, Irene Mateo Leach, Barbara, Mcknight, Stuart, Meacham, Medland, Sarah E., Christa, Meisinger, Olle, Melander, Yasin, Memari, Andres, Metspalu, Kathy, Miller, Mitchell, Braxton D., Moffatt, Miriam F., Montgomery, Grant W., Carmel, Moore, Federico, Murgia, Yusuke, Nakamura, Matthias, Nauck, Gerjan, Navis, Nolte, Ilja M., Ute, Nöthlings, Teresa, Nutile, Yukinori, Okada, Isleifur, Olafsson, Onundarson, Pall T., O’Reilly, Paul F., Ouwehand, Willem H., Debora, Parracciani, Afshin, Parsa, Paul, Dirk S., Penninger, Josef M., Penninx, Brenda W., Mario, Pirastu, Pirastu, Nicola, Giorgio, Pistis, Eleonora, Porcu, Laura, Portas, David, Porteous, Anneli, Pouta, Pramstaller, Peter P., Inga, Prokopenko, Psaty, Bruce M., Janne, Pullat, Aparna, Radhakrishnan, Olli, Raitakari, Ramiro Ramirez Solis, Augusto, Rendon, Ried, Janina S., Ring, Susan M., Robino, Antonietta, Rotter, Jerome I., Daniela, Ruggiero, Aimo, Ruokonen, Cinzia, Sala, Andres, Saluments, Samani, Nilesh J., Jennifer, Sambrook, Serena, Sanna, David, Schlessinger, Schmidt, Carsten O., Stefan, Schreiber, Heribert, Schunkert, James, Scott, Joban, Sehmi, Jovana Serbanovic Canic, So Youn Shin, Shuldiner, Alan R., Rob, Sladek, Smit, Johannes H., George Davey Smith, Gustav Smith, J., Smith, Nicholas L., Harold, Snieder, Nicole, Soranzo, Rossella, Sorice, Spector, Timothy D., Starr, John M., Kari, Stefansson, Derek, Stemple, Jonathan, Stephens, Michael, Stumvoll, Patrick, Sulem, Atsushi, Takahashi, Sian Tsung Tan, Toshiko, Tanaka, Clara, Tang, Weihong, Tang, WH Wilson Tang, Kent, Taylor, Albert, Tenesa, Alexander, Teumer, Swee Lay Thein, Unnur, Thorsteinsdottir, Daniela, Toniolo, Anke, Tönjes, Traglia, Michela, Manuela, Uda, Sheila, Ulivi, Pim van der Harst, Ellen van der Schoot, C., van Gilst, Wiek H., Joost van Pelt, L., van Veldhuisen, Dirk J., Niek, Verweij, Visscher, Peter M., Uwe, Völker, Peter, Vollenweider, Katrin, Voss, Wareham, Nicholas J., Lorenz, Wernisch, Harm Jan Westra, Whitfield, John B., Herich, Wichmann, Wiggins, Kerri L., Gonneke, Willemsen, Winkelmann, Bernhard R., Gerald, Wirnsberger, Bruce HR Wolffenbuttel, Jian, Yang, Tsun Po Yang, Weihua, Zhang, Jing Hua Zhao, Paavo, Zitting, Jaap Jan Zwaginga, van der Harst, P, Chambers, Jc, Soranzo, N, Ouwehand, Wh, Deloukas, P., Paul, D, Albers, Ca, Rendon, A, Voss, K, Stephens, J, Jan Willem N., Akkerman, Cornelis A., Alber, Ale, Algra, Abtehale Al, Hussani, Hooman, Allayee, Franco, Anni, Folkert W., Asselberg, Antony, Attwood, Beverley, Balkau, Stefania, Bandinelli, François, Bastardot, Saonli, Basu, Sebastian E., Baumeister, Jacques, Beckmann, Beben, Benyamin, Ginevra, Biino, Joshua C., Bi, Lorenzo, Bomba, Amélie, Bonnefond, Dorret I., Boomsma, John R., Bradley, François, Cambien, John C., Chamber, Marina, Ciullo, William O., Cookson, Francesco, Cucca, Ana, Cvejic, D'Adamo, ADAMO PIO, John, Danesh, Fabrice, Danjou, Debashish, Da, Gail, Davie, Paul IW de, Bakker, Rudolf A., de Boer, Eco JC de, Geu, Ian J., Deary, George V., Dedoussi, Panos, Delouka, Maria, Dimitriou, Christian, Dina, Angela, Döring, Ulrich, Elling, David, Ellinghau, Paul, Elliott, Gunnar, Engström, Jeanette, Erdmann, Tõnu, Esko, David M., Evan, Gudmundur I., Eyjolfsson, Mario, Falchi, Wei, Feng, Manuel A., Ferreira, Luigi, Ferrucci, Krista, Fischer, Aaron R., Folsom, Paolo, Fortina, Andre, Franke, Lude, Franke, Ian H., Frazer, Philippe, Froguel, Renzo, Galanello, Santhi K., Ganesh, Stephen F., Garner, Gasparini, Paolo, Bernd, Genser, Quince D., Gibson, Christian, Gieger, Girotto, Giorgia, Nicole L., Glazer, Martin, Gögele, Alison H., Goodall, Andreas, Greinacher, Daniel F., Gudbjartsson, Chris, Hammond, Sarah E., Harri, Jaana, Hartiala, Anna Liisa, Hartikainen, Stanley L., Hazen, Susan R., Heckbert, Bo, Hedblad, Christian, Hengstenberg, Micha, Hersch, Andrew A., Hick, Hilma, Holm, Jouke Jan, Hottenga, Thomas, Illig, Marjo Riitta, Jarvelin, Jennifer, Jolley, Steve, Jupe, Mika, Kähönen, Naoyuki, Kamatani, Stavroula, Kanoni, Ido P., Kema, John P., Kemp, Jyoti, Khadake, Kay Tee, Khaw, Marcus E., Kleber, Jaspal S., Kooner, Peter, Kovac, Brigitte, Kühnel, Marie Christine, Kyrtsoni, Yann, Labrune, Vasiliki, Lagou, Claudia, Langenberg, Terho, Lehtimäki, Xinzhong, Li, Liming, Liang, Lifelines Cohort, Study, Heather Lloyd, Jone, Ruth JF, Loo, Lorna M., Lopez, Thomas, Lumley, Leo Pekka, Lyytikäinen, Winfried, Maerz, Reedik, Mägi, Massimo, Mangino, Nicholas G., Martin, Andrea, Maschio, Irene Mateo, Leach, Barbara, Mcknight, Stuart, Meacham, Sarah E., Medland, Christa, Meisinger, Olle, Melander, Yasin, Memari, Andres, Metspalu, Kathy, Miller, Braxton D., Mitchell, Miriam F., Moffatt, Grant W., Montgomery, Carmel, Moore, Federico, Murgia, Yusuke, Nakamura, Matthias, Nauck, Gerjan, Navi, Ilja M., Nolte, Ute, Nöthling, Teresa, Nutile, Yukinori, Okada, Isleifur, Olafsson, Pall T., Onundarson, Paul F., O’Reilly, Willem H., Ouwehand, Debora, Parracciani, Afshin, Parsa, Dirk S., Paul, Josef M., Penninger, Brenda W., Penninx, Mario, Pirastu, Pirastu, Nicola, Giorgio, Pisti, Eleonora, Porcu, Laura, Porta, David, Porteou, Anneli, Pouta, Peter P., Pramstaller, Inga, Prokopenko, Bruce M., Psaty, Janne, Pullat, Aparna, Radhakrishnan, Olli, Raitakari, Ramiro Ramirez, Soli, Augusto, Rendon, Janina S., Ried, Susan M., Ring, Robino, Antonietta, Jerome I., Rotter, Daniela, Ruggiero, Aimo, Ruokonen, Cinzia, Sala, Andres, Salument, Nilesh J., Samani, Jennifer, Sambrook, Serena, Sanna, David, Schlessinger, Carsten O., Schmidt, Stefan, Schreiber, Heribert, Schunkert, James, Scott, Joban, Sehmi, Jovana Serbanovic, Canic, So Youn, Shin, Alan R., Shuldiner, Rob, Sladek, Johannes H., Smit, George Davey, Smith, J., Gustav Smith, Nicholas L., Smith, Harold, Snieder, Nicole, Soranzo, Rossella, Sorice, Timothy D., Spector, John M., Starr, Kari, Stefansson, Derek, Stemple, Jonathan, Stephen, Michael, Stumvoll, Patrick, Sulem, Atsushi, Takahashi, Sian Tsung, Tan, Toshiko, Tanaka, Clara, Tang, Weihong, Tang, WH Wilson, Tang, Kent, Taylor, Albert, Tenesa, Alexander, Teumer, Swee Lay, Thein, Unnur, Thorsteinsdottir, Daniela, Toniolo, Anke, Tönje, Traglia, Michela, Manuela, Uda, Sheila, Ulivi, Pim van der, Harst, C., Ellen van der Schoot, Wiek H., van Gilst, L., Joost van Pelt, Dirk J., van Veldhuisen, Niek, Verweij, Peter M., Visscher, Uwe, Völker, Peter, Vollenweider, Katrin, Vo, Nicholas J., Wareham, Lorenz, Wernisch, Harm Jan, Westra, John B., Whitfield, Herich, Wichmann, Kerri L., Wiggin, Gonneke, Willemsen, Bernhard R., Winkelmann, Gerald, Wirnsberger, Bruce HR, Wolffenbuttel, Jian, Yang, Tsun Po, Yang, Weihua, Zhang, Jing Hua, Zhao, Paavo, Zitting, Jaap Jan, Zwaginga, van der Harst, P, Chambers, Jc, Soranzo, N, Ouwehand, Wh, Deloukas, P., Biological Psychology, Neuroscience Campus Amsterdam - Neurobiology of Mental Health, EMGO+ - Mental Health, Neuroscience Campus Amsterdam - Brain Imaging Technology, Neuroscience Campus Amsterdam - Brain Mechanisms in Health & Disease, Wellcome Trust Sanger Inst, Cambridge CB10 1SA, England, UCL, UCL Canc Inst, London WC1E 6BT, England, Univ Cambridge, Dept Haematol, Cambridge CB2 0PT, England, Natl Hlth Serv NHS Blood & Transplant, Cambridge CB2 0PT, England, Radboud Univ Nijmegen, Med Ctr, Dept Human Genet, NL-6500 HB Nijmegen, Netherlands, Inst Publ Hlth, MRC Biostat Unit, Cambridge CB2 0SR, England, NIHR Biomed Res Ctr, Cambridge CB2 0PT, England, Univ Groningen, Univ Med Ctr Groningen, Dept Cardiol, NL-9713 GZ Groningen, Netherlands, Univ Groningen, Univ Med Ctr Groningen, Dept Genet, NL-9713 GZ Groningen, Netherlands, Univ London Imperial Coll Sci Technol & Med, Dept Epidemiol & Biostat, London W2 1NY, England, Hammersmith Hosp, Imperial Coll Healthcare NHS Trust, London W12 0HS, England, Royal Brompton & Harefield Hosp NHS Trust, London SW3 6NP, England, Ealing Hosp NHS Trust, Southall UB1 3HW, Middx, England, Psychiatry, Epidemiology and Data Science, NCA - Brain mechanisms in health and disease, NCA - Neurobiology of mental health, EMGO - Mental health, NCA - Brain imaging technology, and Cardiovascular Centre (CVC)

Subjects
Netherlands Twin Register (NTR), Erythrocytes, Genome-wide association study, UNCERTAINTY, Regulatory Sequences, Nucleic Acid, VARIANTS, ANNOTATION, COLORECTAL-CANCER, Histones, 0302 clinical medicine, BINDING, Cluster Analysis, Myeloid Cells, Genetics (clinical), Genetics, hematological trait, 0303 health sciences, Chromosome Mapping, MRP4 ABCC4, Chromatin, Nucleosomes, Phenotype, Organ Specificity, 030220 oncology & carcinogenesis, Blood Platelets, Quantitative Trait Loci, Biology, Quantitative trait locus, Polymorphism, Single Nucleotide, DYNAMIN 3, 03 medical and health sciences, Quantitative Trait, Heritable, MEGAKARYOCYTES, Humans, Cell Lineage, ddc:610, GENOME-WIDE ASSOCIATION, Enhancer, Transcription factor, Gene, ChIA-PET, 030304 developmental biology, Research, Genetic Variation, DNA, Chromatin Assembly and Disassembly, Genetic architecture, Gene Expression Regulation, Genome-Wide Association Study
Abstract

To access publisher's full text version of this article, please click on the hyperlink in Additional Links field or click on the hyperlink at the top of the page marked Files. This article is open access. Nearly three-quarters of the 143 genetic signals associated with platelet and erythrocyte phenotypes identified by meta-analyses of genome-wide association (GWA) studies are located at non-protein-coding regions. Here, we assessed the role of candidate regulatory variants associated with cell type-restricted, closely related hematological quantitative traits in biologically relevant hematopoietic cell types. We used formaldehyde-assisted isolation of regulatory elements followed by next-generation sequencing (FAIRE-seq) to map regions of open chromatin in three primary human blood cells of the myeloid lineage. In the precursors of platelets and erythrocytes, as well as in monocytes, we found that open chromatin signatures reflect the corresponding hematopoietic lineages of the studied cell types and associate with the cell type-specific gene expression patterns. Dependent on their signal strength, open chromatin regions showed correlation with promoter and enhancer histone marks, distance to the transcription start site, and ontology classes of nearby genes. Cell type-restricted regions of open chromatin were enriched in sequence variants associated with hematological indices. The majority (63.6%) of such candidate functional variants at platelet quantitative trait loci (QTLs) coincided with binding sites of five transcription factors key in regulating megakaryopoiesis. We experimentally tested 13 candidate regulatory variants at 10 platelet QTLs and found that 10 (76.9%) affected protein binding, suggesting that this is a frequent mechanism by which regulatory variants influence quantitative trait levels. Our findings demonstrate that combining large-scale GWA data with open chromatin profiles of relevant cell types can be a powerful means of dissecting the genetic architecture of closely related quantitative traits. Marie-Curie Initial Training Network NETSIM British Heart Foundation RG/09/12/28096 National Institutes for Health RP-PG-0310-1002 Wellcome Trust 098051 info:eu-repo/grantAgreement/EC/FP7/282510

Published
2013
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2. Evidence of inbreeding depression on human height

Author

Cinzia Sala, Peter P. Pramstaller, Najaf Amin, Brian P. McEvoy, Erkki Vartiainen, Lorna M. Lopez, Nicholas D. Hastie, Andres Metspalu, Susan M. Farrington, Mladen Boban, Marjo-Riitta Järvelin, Vesna Boraska, Seppo Koskinen, Krista Fischer, André G. Uitterlinden, Laura Esposito, Karol Estrada, Ruth McQuillan, Tõnu Esko, Sheila Ulivi, Mart Kals, Harry Campbell, Inga Prokopenko, Peter M. Visscher, Niina Eklund, Markku Heliövaara, Alan F. Wright, Antonietta Robino, Pamela A. F. Madden, Henning Tiemeier, Grant W. Montgomery, Albert Tenesa, Markus Perola, Nicola Pirastu, Albert Hofman, Johan G. Eriksson, Giorgio Pistis, Pio D'Adamo, Ben A. Oostra, Nicholas G. Martin, Terho Lehtimäki, Ivana Kolcic, Igor Rudan, Olli T. Raitakari, Tatijana Zemunik, Ian J. Deary, Giorgia Girotto, Mark I. McCarthy, Veronique Vitart, David J. Porteous, Daniela Toniolo, Malcolm G. Dunlop, Martin Gögele, Anneli Pouta, Jorma Viikari, Åsa Johansson, Tiina Laatikainen, Jari Lahti, Sarah H. Wild, Corrado Masciullo, Elisabeth Widen, Caroline Hayward, Paolo Gasparini, Gail Davies, Antti Jula, Tanguy Corre, John M. Starr, James F. Wilson, Andrew C. Heath, Veikko Salomaa, Aki S. Havulinna, Lina Zgaga, Ulf Gyllensten, Jian Yang, Lili Milani, Fernando Rivadeneira, Kati Kristiansson, Andrew A. Hicks, Leo-Pekka Lyytikäinen, Yurii S. Aulchenko, Marika Kaakinen, Mirna Kirin, Ozren Polasek, Wilmar Igl, Katri Räikkönen, Nelson B. Freimer, Mika Kähönen, Anna-Liisa Hartikainen, Evropi Theodoratou, Maris Kuningas, Flavio Faletra, Cornelia M. van Duijn, Marina Pehlić, Medical Research Council (MRC), Greg, Gibson, Ruth, Mcquillan, Niina, Eklund, Pirastu, Nicola, Maris, Kuninga, Brian P., Mcevoy, Tõnu, Esko, Tanguy, Corre, Gail, Davie, Marika, Kaakinen, Leo Pekka, Lyytikäinen, Kati, Kristiansson, Aki S., Havulinna, Martin, Gögele, Veronique, Vitart, Albert, Tenesa, Yurii, Aulchenko, Caroline, Hayward, Åsa, Johansson, Mladen, Boban, Sheila, Ulivi, Robino, Antonietta, Vesna, Boraska, Wilmar, Igl, Sarah H., Wild, Lina, Zgaga, Najaf, Amin, Evropi, Theodoratou, Ozren, Polašek, Girotto, Giorgia, Lorna M., Lopez, Cinzia, Sala, Jari, Lahti, Tiina, Laatikainen, Inga, Prokopenko, Mart, Kal, Jorma, Viikari, Jian, Yang, Anneli, Pouta, Karol, Estrada, Albert, Hofman, Nelson, Freimer, Nicholas G., Martin, Mika, Kähönen, Lili, Milani, Markku, Heliövaara, Erkki, Vartiainen, Katri, Räikkönen, Corrado, Masciullo, John M., Starr, Andrew A., Hick, Laura, Esposito, Ivana, Kolčić, Susan M., Farrington, Ben, Oostra, Tatijana, Zemunik, Harry, Campbell, Mirna, Kirin, Marina, Pehlic, Faletra, Flavio, David, Porteou, Giorgio, Pisti, Elisabeth, Widén, Veikko, Salomaa, Seppo, Koskinen, Krista, Fischer, Terho, Lehtimäki, Andrew, Heath, Mark I., Mccarthy, Fernando, Rivadeneira, Grant W., Montgomery, Henning, Tiemeier, Anna Liisa, Hartikainen, Pamela A. F., Madden, D'Adamo, ADAMO PIO, Nicholas D., Hastie, Ulf, Gyllensten, Alan F., Wright, Cornelia M., van Duijn, Malcolm, Dunlop, Igor, Rudan, Gasparini, Paolo, Peter P., Pramstaller, Ian J., Deary, Daniela, Toniolo, Johan G., Eriksson, Antti, Jula, Olli T., Raitakari, Andres, Metspalu, Markus, Perola, Marjo Riitta, Järvelin, André, Uitterlinden, Peter M., Visscher, James F., Wilson, Epidemiology, Clinical Genetics, Surgery, Internal Medicine, Psychiatry, Department of Surgery, Behavioural Sciences, Institute for Molecular Medicine Finland, Elisabeth Ingrid Maria Widen / Principal Investigator, Clinicum, Johan Eriksson / Principal Investigator, Department of General Practice and Primary Health Care, Medicum, Quantitative Genetics, Developmental Psychology Research Group, and Genomic Discoveries and Clinical Translation

Subjects
Male, Cancer Research, Medicin och hälsovetenskap, Genome-wide association study, Runs of Homozygosity, Medical and Health Sciences, PARENTAL CONSANGUINITY, Consanguinity, inbreeding, height, runs of homozygosity, 0302 clinical medicine, Databases, Genetic, Inbreeding depression, GENETICS & HEREDITY, Genetics (clinical), ADULT HEIGHT, Genetics, 0303 health sciences, education.field_of_study, Inbreeding Depression, HERITABILITY, Homozygote, QUANTITATIVE TRAITS, Middle Aged, ROHgen Consortium, Female, PARENTAL, Life Sciences & Biomedicine, Inbreeding, Research Article, Adult, lcsh:QH426-470, Population, Genes, Recessive, Biology, Polymorphism, Single Nucleotide, FOUNDER POPULATION, 03 medical and health sciences, Genetic Heterogeneity, Quantitative Trait, Heritable, Humans, CORONARY-HEART-DISEASE, Family, Human height, education, Molecular Biology, Ecology, Evolution, Behavior and Systematics, 030304 developmental biology, Aged, 0604 Genetics, Science & Technology, Human Genetics, Human Height, ta3121, BRITISH WOMENS HEART, Heritability, Genetic architecture, Body Height, lcsh:Genetics, WIDE ASSOCIATION ANALYSIS, CONSANGUINEOUS MARRIAGE, 3111 Biomedicine, 030217 neurology & neurosurgery, Population Genetics, Developmental Biology, Genome-Wide Association Study
Abstract

Stature is a classical and highly heritable complex trait, with 80%–90% of variation explained by genetic factors. In recent years, genome-wide association studies (GWAS) have successfully identified many common additive variants influencing human height; however, little attention has been given to the potential role of recessive genetic effects. Here, we investigated genome-wide recessive effects by an analysis of inbreeding depression on adult height in over 35,000 people from 21 different population samples. We found a highly significant inverse association between height and genome-wide homozygosity, equivalent to a height reduction of up to 3 cm in the offspring of first cousins compared with the offspring of unrelated individuals, an effect which remained after controlling for the effects of socio-economic status, an important confounder (χ2 = 83.89, df = 1; p = 5.2×10−20). There was, however, a high degree of heterogeneity among populations: whereas the direction of the effect was consistent across most population samples, the effect size differed significantly among populations. It is likely that this reflects true biological heterogeneity: whether or not an effect can be observed will depend on both the variance in homozygosity in the population and the chance inheritance of individual recessive genotypes. These results predict that multiple, rare, recessive variants influence human height. Although this exploratory work focuses on height alone, the methodology developed is generally applicable to heritable quantitative traits (QT), paving the way for an investigation into inbreeding effects, and therefore genetic architecture, on a range of QT of biomedical importance., Author Summary Studies investigating the extent to which genetics influences human characteristics such as height have concentrated mainly on common variants of genes, where having one or two copies of a given variant influences the trait or risk of disease. This study explores whether a different type of genetic variant might also be important. We investigate the role of recessive genetic variants, where two identical copies of a variant are required to have an effect. By measuring genome-wide homozygosity—the phenomenon of inheriting two identical copies at a given point of the genome—in 35,000 individuals from 21 European populations, and by comparing this to individual height, we found that the more homozygous the genome, the shorter the individual. The offspring of first cousins (who have increased homozygosity) were predicted to be up to 3 cm shorter on average than the offspring of unrelated parents. Height is influenced by the combined effect of many recessive variants dispersed across the genome. This may also be true for other human characteristics and diseases, opening up a new way to understand how genetic variation influences our health.

Published
2016
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3. New gene functions in megakaryopoiesis and platelet formation

Author

Christian Gieger1, Aparna Radhakrishnan2, 3, Ana Cvejic2, Weihong Tang4, Eleonora Porcu5, Giorgio Pistis6, Jovana Serbanovic-Canic2, Ulrich Elling7, Alison H. Goodall8, 9, Yann Labrune10, Lorna M. Lopez11, Reedik Ma¨gi13, Stuart Meacham2, Yukinori Okada14, Nicola Pirastu16, 102, Rossella Sorice17, Alexander Teumer18, Katrin Voss2, Weihua Zhang19, Ramiro Ramirez-Solis3, Joshua C. Bis20, David Ellinghaus21, Martin Go¨ gele22, Jouke-Jan Hottenga23, Claudia Langenberg24, Peter Kovacs25, Paul F. O'Reilly26, So-Youn Shin3, To~nu Esko28, Jaana Hartiala31, Stavroula Kanoni3, Federico Murgia34, Afshin Parsa35, Jonathan Stephens2, Pim van der Harst36, C. Ellen van der Schoot37, Hooman Allayee31, Antony Attwood2, Beverley Balkau38, François Bastardot40, Saonli Basu41, Sebastian E. Baumeister42, Ginevra Biino34, Lorenzo Bomba45, Ame´lie Bonnefond10, François Cambien46, John C. Chambers19, Francesco Cucca5, Pio D'Adamo16, Gail Davies12, Rudolf A. de Boer36, Eco J. C. de Geus23, Angela Do¨ ring47, Paul Elliott19, Jeanette Erdmann50, 101, David M. Evans51, Mario Falchi52, Wei Feng41, Aaron R. Folsom4, Ian H. Frazer53, Quince D. Gibson35, Nicole L. Glazer54, Chris Hammond27, Anna-Liisa Hartikainen55, Susan R. Heckbert56, Christian Hengstenberg58, Micha Hersch59, Thomas Illig60, Ruth J. F. Loos24, Jennifer Jolley2, Kay Tee Khaw61, Brigitte Ku¨hnel1, Marie-Christine Kyrtsonis63, Vasiliki Lagou64, Heather Lloyd-Jones2, Thomas Lumley65, Massimo Mangino27, Andrea Maschio5, Irene Mateo Leach36, Barbara McKnight65, Yasin Memari3, Braxton D. Mitchell35, Grant W. Montgomery66, Yusuke Nakamura67, Matthias Nauck68, Gerjan Navis69, Ute No¨ thlings70, Ilja M. Nolte72, David J. Porteous11, Anneli Pouta55, Peter P. Pramstaller22, Janne Pullat28, Susan M. Ring51, Jerome I. Rotter75, Daniela Ruggiero17, Aimo Ruokonen76, Cinzia Sala6, Nilesh J. Samani8, Jennifer Sambrook2, David Schlessinger78, Stefan Schreiber21, Heribert Schunkert50, James Scott79, Nicholas L. Smith56, Harold Snieder72, John M. Starr11, Michael Stumvoll82, Atsushi Takahashi14, W. H. Wilson Tang83, Kent Taylor75, Albert Tenesa85, Swee Lay Thein87, Anke To¨njes82, Manuela Uda5, Sheila Ulivi16, Dirk J. van Veldhuisen36, Peter M. Visscher11, Uwe Vo¨lker18, H.-Erich Wichmann47, Kerri L. Wiggins20, Gonneke Willemsen23, Tsun-Po Yang3, Jing Hua Zhao24, Paavo Zitting89, John R. Bradley77, George V. Dedoussis33, Paolo Gasparini16, Stanley L. Hazen83, Andres Metspalu28, Mario Pirastu34, Alan R. Shuldiner35, L. Joost van Pelt91, Jaap-Jan Zwaginga92, Dorret I.Boomsma23, Ian J. Deary11, Andre Franke21, Philippe Froguel10, Santhi K. Ganesh93, Marjo-Riitta Jarvelin26, Nicholas G. Martin66, Christa Meisinger48, Bruce M. Psaty57, Timothy D. Spector27, Nicholas J. Wareham24, Jan-Willem N. Akkerman97, Marina Ciullo17, Panos Deloukas3, Andreas Greinacher98, Steve Jupe99, Naoyuki Kamatani14, Jyoti Khadake99, Jaspal S. Kooner79, Josef Penninger7, Inga Prokopenko64, Derek Stemple3, Daniela Toniolo6, Lorenz Wernisch100, Serena Sanna5, Andrew A. Hicks22, Augusto Rendon2, 100, Manuel A. Ferreira 66, Willem H. Ouwehand 2, Nicole Soranzo3, Christian, Gieger, Aparna, Radhakrishnan, Ana, Cvejic, Weihong, Tang, Eleonora, Porcu, Giorgio, Pisti, Jovana Serbanovic, Canic, Ulrich, Elling, Alison H., Goodall, Yann, Labrune, Lorna M., Lopez, Reedik, Mägi, Stuart, Meacham, Yukinori, Okada, Pirastu, Nicola, Rossella, Sorice, Alexander, Teumer, Katrin, Vo, Weihua, Zhang, Ramiro Ramirez, Soli, Joshua C., Bi, David, Ellinghau, Martin, Gögele, Jouke Jan, Hottenga, Claudia, Langenberg, Peter, Kovac, Paul F., O’Reilly, So Youn, Shin, Tõnu, Esko, Jaana, Hartiala, Stavroula, Kanoni, Federico, Murgia, Afshin, Parsa, Jonathan, Stephen, Pim van der, Harst, C., Ellen van der Schoot, Hooman, Allayee, Antony, Attwood, Beverley, Balkau, François, Bastardot, Saonli, Basu, Sebastian E., Baumeister, Ginevra, Biino, Lorenzo, Bomba, Amélie, Bonnefond, François, Cambien, John C., Chamber, Francesco, Cucca, D'Adamo, ADAMO PIO, Gail, Davie, Rudolf A., de Boer, Eco J. C., de Geu, Angela, Döring, Paul, Elliott, Jeanette, Erdmann, David M., Evan, Mario, Falchi, Wei, Feng, Aaron R., Folsom, Ian H., Frazer, Quince D., Gibson, Nicole L., Glazer, Chris, Hammond, Anna Liisa, Hartikainen, Susan R., Heckbert, Christian, Hengstenberg, Micha, Hersch, Thomas, Illig, Ruth J. F., Loo, Jennifer, Jolley, Kay Tee, Khaw, Brigitte, Kühnel, Marie Christine, Kyrtsoni, Vasiliki, Lagou, Heather Lloyd, Jone, Thomas, Lumley, Massimo, Mangino, Andrea, Maschio, Irene Mateo, Leach, Barbara, Mcknight, Yasin, Memari, Braxton D., Mitchell, Grant W., Montgomery, Yusuke, Nakamura, Matthias, Nauck, Gerjan, Navi, Ute, Nöthling, Ilja M., Nolte, David J., Porteou, Anneli, Pouta, Peter P., Pramstaller, Janne, Pullat, Susan M., Ring, Jerome I., Rotter, Daniela, Ruggiero, Aimo, Ruokonen, Cinzia, Sala, Nilesh J., Samani, Jennifer, Sambrook, David, Schlessinger, Stefan, Schreiber, Heribert, Schunkert, James, Scott, Nicholas L., Smith, Harold, Snieder, John M., Starr, Michael, Stumvoll, Atsushi, Takahashi, W. H., Wilson Tang, Kent, Taylor, Albert, Tenesa, Swee Lay, Thein, Anke, Tönje, Manuela, Uda, Sheila, Ulivi, Dirk J., van Veldhuisen, Peter M., Visscher, Uwe, Völker, H., Erich Wichmann, Kerri L., Wiggin, Gonneke, Willemsen, Tsun Po, Yang, Jing Hua, Zhao, Paavo, Zitting, John R., Bradley, George V., Dedoussi, Gasparini, Paolo, Stanley L., Hazen, Andres, Metspalu, Mario, Pirastu, Alan R., Shuldiner, L., Joost van Pelt, Jaap Jan, Zwaginga, Dorret I., Boomsma, Ian J., Deary, Andre, Franke, Philippe, Froguel, Santhi K., Ganesh, Marjo Riitta, Jarvelin, Nicholas G., Martin, Christa, Meisinger, Bruce M., Psaty, Timothy D., Spector, Nicholas J., Wareham, Jan Willem N., Akkerman, Marina, Ciullo, Panos, Delouka, Andreas, Greinacher, Steve, Jupe, Naoyuki, Kamatani, Jyoti, Khadake, Jaspal S., Kooner, Josef, Penninger, Inga, Prokopenko, Derek, Stemple, Daniela, Toniolo, Lorenz, Wernisch, Serena, Sanna, Andrew A., Hick, Augusto, Rendon, Manuel A., Ferreira, Willem H., Ouwehand, Nicole, Soranzo, Faculteit Medische Wetenschappen/UMCG, Cardiovascular Centre (CVC), Lifestyle Medicine (LM), Groningen Kidney Center (GKC), Vascular Ageing Programme (VAP), Life Course Epidemiology (LCE), Biological Psychology, EMGO+ - Mental Health, Landsteiner Laboratory, and Clinical Haematology

Subjects
Blood Platelets, Netherlands Twin Register (NTR), BLOOD, Transcription, Genetic, Population, LOCI, Genome-wide association study, Genomics, 030204 cardiovascular system & hematology, Biology, HEMATOPOIESIS, Article, 03 medical and health sciences, 0302 clinical medicine, Animals, Drosophila Proteins, Humans, Gene silencing, Gene Silencing, Protein Interaction Maps, GENOME-WIDE ASSOCIATION, education, Gene, Zebrafish, POPULATION, Cell Size, 030304 developmental biology, Megakaryopoiesis, Genetics, platelet, 0303 health sciences, education.field_of_study, Multidisciplinary, Genome, Human, Platelet Count, Gene Expression Profiling, Zebrafish Proteins, Europe, Gene expression profiling, DROSOPHILA, Drosophila melanogaster, Human genome, Megakaryocytes, Genome-Wide Association Study
Abstract

Platelets are the second most abundant cell type in blood and are essential for maintaining haemostasis. Their count and volume are tightly controlled within narrow physiological ranges, but there is only limited understanding of the molecular processes controlling both traits. Here we carried out a high-powered meta-analysis of genome-wide association studies (GWAS) in up to 66,867 individuals of European ancestry, followed by extensive biological and functional assessment. We identified 68 genomic loci reliably associated with platelet count and volume mapping to established and putative novel regulators of megakaryopoiesis and platelet formation. These genes show megakaryocyte-specific gene expression patterns and extensive network connectivity. Using gene silencing in Danio rerio and Drosophila melanogaster, we identified 11 of the genes as novel regulators of blood cell formation. Taken together, our findings advance understanding of novel gene functions controlling fate-determining events during megakaryopoiesis and platelet formation, providing a new example of successful translation of GWAS to function. © 2011 Macmillan Publishers Limited. All rights reserved.

Published
2011
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