@article {7696, title = {Directional dominance on stature and cognition in~diverse human populations.}, journal = {Nature}, volume = {523}, year = {2015}, month = {2015 Jul 23}, pages = {459-62}, abstract = {

Homozygosity has long been associated with rare, often devastating, Mendelian disorders, and Darwin was one of the first to recognize that inbreeding reduces evolutionary fitness. However, the effect of the more distant parental relatedness that is common in modern human populations is less well understood. Genomic data now allow us to investigate the effects of homozygosity on traits of public health importance by observing contiguous homozygous segments (runs of homozygosity), which are inferred to be homozygous along their complete length. Given the low levels of genome-wide homozygosity prevalent in most human populations, information is required on very large numbers of people to provide sufficient power. Here we use runs of homozygosity to study 16 health-related quantitative traits in 354,224 individuals from 102 cohorts, and find statistically significant associations between summed runs~of homozygosity and four complex traits: height, forced expiratory lung volume in one second, general cognitive ability and educational attainment (P < 1 {\texttimes} 10(-300), 2.1 {\texttimes} 10(-6), 2.5 {\texttimes} 10(-10) and 1.8 {\texttimes} 10(-10), respectively). In each case, increased homozygosity was associated with decreased trait value, equivalent to the offspring of first cousins being 1.2 cm shorter and having 10 months{\textquoteright} less education. Similar effect sizes were found across four continental groups and populations with different degrees of genome-wide homozygosity, providing evidence that homozygosity, rather than confounding, directly contributes to phenotypic variance. Contrary to earlier reports in substantially smaller samples, no evidence was seen of an influence of genome-wide homozygosity on blood pressure and low density lipoprotein cholesterol, or ten other cardio-metabolic traits. Since directional dominance is predicted for traits under directional evolutionary selection, this study provides evidence that increased stature and cognitive function have been positively selected in human evolution, whereas many important risk factors for late-onset complex diseases may not have been.

}, keywords = {Biological Evolution, Blood Pressure, Body Height, Cholesterol, LDL, Cognition, Cohort Studies, Educational Status, Female, Forced Expiratory Volume, Genome, Human, Homozygote, Humans, Lung Volume Measurements, Male, Phenotype}, issn = {1476-4687}, doi = {10.1038/nature14618}, author = {Joshi, Peter K and Esko, T{\~o}nu and Mattsson, Hannele and Eklund, Niina and Gandin, Ilaria and Nutile, Teresa and Jackson, Anne U and Schurmann, Claudia and Smith, Albert V and Zhang, Weihua and Okada, Yukinori and Stan{\v c}{\'a}kov{\'a}, Alena and Faul, Jessica D and Zhao, Wei and Bartz, Traci M and Concas, Maria Pina and Franceschini, Nora and Enroth, Stefan and Vitart, Veronique and Trompet, Stella and Guo, Xiuqing and Chasman, Daniel I and O{\textquoteright}Connel, Jeffrey R and Corre, Tanguy and Nongmaithem, Suraj S and Chen, Yuning and Mangino, Massimo and Ruggiero, Daniela and Traglia, Michela and Farmaki, Aliki-Eleni and Kacprowski, Tim and Bjonnes, Andrew and van der Spek, Ashley and Wu, Ying and Giri, Anil K and Yanek, Lisa R and Wang, Lihua and Hofer, Edith and Rietveld, Cornelius A and McLeod, Olga and Cornelis, Marilyn C and Pattaro, Cristian and Verweij, Niek and Baumbach, Clemens and Abdellaoui, Abdel and Warren, Helen R and Vuckovic, Dragana and Mei, Hao and Bouchard, Claude and Perry, John R B and Cappellani, Stefania and Mirza, Saira S and Benton, Miles C and Broeckel, Ulrich and Medland, Sarah E and Lind, Penelope A and Malerba, Giovanni and Drong, Alexander and Yengo, Loic and Bielak, Lawrence F and Zhi, Degui and van der Most, Peter J and Shriner, Daniel and M{\"a}gi, Reedik and Hemani, Gibran and Karaderi, Tugce and Wang, Zhaoming and Liu, Tian and Demuth, Ilja and Zhao, Jing Hua and Meng, Weihua and Lataniotis, Lazaros and van der Laan, Sander W and Bradfield, Jonathan P and Wood, Andrew R and Bonnefond, Amelie and Ahluwalia, Tarunveer S and Hall, Leanne M and Salvi, Erika and Yazar, Seyhan and Carstensen, Lisbeth and de Haan, Hugoline G and Abney, Mark and Afzal, Uzma and Allison, Matthew A and Amin, Najaf and Asselbergs, Folkert W and Bakker, Stephan J L and Barr, R Graham and Baumeister, Sebastian E and Benjamin, Daniel J and Bergmann, Sven and Boerwinkle, Eric and Bottinger, Erwin P and Campbell, Archie and Chakravarti, Aravinda and Chan, Yingleong and Chanock, Stephen J and Chen, Constance and Chen, Y-D Ida and Collins, Francis S and Connell, John and Correa, Adolfo and Cupples, L Adrienne and Smith, George Davey and Davies, Gail and D{\"o}rr, Marcus and Ehret, Georg and Ellis, Stephen B and Feenstra, Bjarke and Feitosa, Mary F and Ford, Ian and Fox, Caroline S and Frayling, Timothy M and Friedrich, Nele and Geller, Frank and Scotland, Generation and Gillham-Nasenya, Irina and Gottesman, Omri and Graff, Misa and Grodstein, Francine and Gu, Charles and Haley, Chris and Hammond, Christopher J and Harris, Sarah E and Harris, Tamara B and Hastie, Nicholas D and Heard-Costa, Nancy L and Heikkil{\"a}, Kauko and Hocking, Lynne J and Homuth, Georg and Hottenga, Jouke-Jan and Huang, Jinyan and Huffman, Jennifer E and Hysi, Pirro G and Ikram, M Arfan and Ingelsson, Erik and Joensuu, Anni and Johansson, {\r A}sa and Jousilahti, Pekka and Jukema, J Wouter and K{\"a}h{\"o}nen, Mika and Kamatani, Yoichiro and Kanoni, Stavroula and Kerr, Shona M and Khan, Nazir M and Koellinger, Philipp and Koistinen, Heikki A and Kooner, Manraj K and Kubo, Michiaki and Kuusisto, Johanna and Lahti, Jari and Launer, Lenore J and Lea, Rodney A and Lehne, Benjamin and Lehtim{\"a}ki, Terho and Liewald, David C M and Lind, Lars and Loh, Marie and Lokki, Marja-Liisa and London, Stephanie J and Loomis, Stephanie J and Loukola, Anu and Lu, Yingchang and Lumley, Thomas and Lundqvist, Annamari and M{\"a}nnist{\"o}, Satu and Marques-Vidal, Pedro and Masciullo, Corrado and Matchan, Angela and Mathias, Rasika A and Matsuda, Koichi and Meigs, James B and Meisinger, Christa and Meitinger, Thomas and Menni, Cristina and Mentch, Frank D and Mihailov, Evelin and Milani, Lili and Montasser, May E and Montgomery, Grant W and Morrison, Alanna and Myers, Richard H and Nadukuru, Rajiv and Navarro, Pau and Nelis, Mari and Nieminen, Markku S and Nolte, Ilja M and O{\textquoteright}Connor, George T and Ogunniyi, Adesola and Padmanabhan, Sandosh and Palmas, Walter R and Pankow, James S and Patarcic, Inga and Pavani, Francesca and Peyser, Patricia A and Pietilainen, Kirsi and Poulter, Neil and Prokopenko, Inga and Ralhan, Sarju and Redmond, Paul and Rich, Stephen S and Rissanen, Harri and Robino, Antonietta and Rose, Lynda M and Rose, Richard and Sala, Cinzia and Salako, Babatunde and Salomaa, Veikko and Sarin, Antti-Pekka and Saxena, Richa and Schmidt, Helena and Scott, Laura J and Scott, William R and Sennblad, Bengt and Seshadri, Sudha and Sever, Peter and Shrestha, Smeeta and Smith, Blair H and Smith, Jennifer A and Soranzo, Nicole and Sotoodehnia, Nona and Southam, Lorraine and Stanton, Alice V and Stathopoulou, Maria G and Strauch, Konstantin and Strawbridge, Rona J and Suderman, Matthew J and Tandon, Nikhil and Tang, Sian-Tsun and Taylor, Kent D and Tayo, Bamidele O and T{\"o}glhofer, Anna Maria and Tomaszewski, Maciej and T{\v s}ernikova, Natalia and Tuomilehto, Jaakko and Uitterlinden, Andr{\'e} G and Vaidya, Dhananjay and van Hylckama Vlieg, Astrid and van Setten, Jessica and Vasankari, Tuula and Vedantam, Sailaja and Vlachopoulou, Efthymia and Vozzi, Diego and Vuoksimaa, Eero and Waldenberger, Melanie and Ware, Erin B and Wentworth-Shields, William and Whitfield, John B and Wild, Sarah and Willemsen, Gonneke and Yajnik, Chittaranjan S and Yao, Jie and Zaza, Gianluigi and Zhu, Xiaofeng and Salem, Rany M and Melbye, Mads and Bisgaard, Hans and Samani, Nilesh J and Cusi, Daniele and Mackey, David A and Cooper, Richard S and Froguel, Philippe and Pasterkamp, Gerard and Grant, Struan F A and Hakonarson, Hakon and Ferrucci, Luigi and Scott, Robert A and Morris, Andrew D and Palmer, Colin N A and Dedoussis, George and Deloukas, Panos and Bertram, Lars and Lindenberger, Ulman and Berndt, Sonja I and Lindgren, Cecilia M and Timpson, Nicholas J and T{\"o}njes, Anke and Munroe, Patricia B and S{\o}rensen, Thorkild I A and Rotimi, Charles N and Arnett, Donna K and Oldehinkel, Albertine J and Kardia, Sharon L R and Balkau, Beverley and Gambaro, Giovanni and Morris, Andrew P and Eriksson, Johan G and Wright, Margie J and Martin, Nicholas G and Hunt, Steven C and Starr, John M and Deary, Ian J and Griffiths, Lyn R and Tiemeier, Henning and Pirastu, Nicola and Kaprio, Jaakko and Wareham, Nicholas J and P{\'e}russe, Louis and Wilson, James G and Girotto, Giorgia and Caulfield, Mark J and Raitakari, Olli and Boomsma, Dorret I and Gieger, Christian and van der Harst, Pim and Hicks, Andrew A and Kraft, Peter and Sinisalo, Juha and Knekt, Paul and Johannesson, Magnus and Magnusson, Patrik K E and Hamsten, Anders and Schmidt, Reinhold and Borecki, Ingrid B and Vartiainen, Erkki and Becker, Diane M and Bharadwaj, Dwaipayan and Mohlke, Karen L and Boehnke, Michael and van Duijn, Cornelia M and Sanghera, Dharambir K and Teumer, Alexander and Zeggini, Eleftheria and Metspalu, Andres and Gasparini, Paolo and Ulivi, Sheila and Ober, Carole and Toniolo, Daniela and Rudan, Igor and Porteous, David J and Ciullo, Marina and Spector, Tim D and Hayward, Caroline and Dupuis, Jos{\'e}e and Loos, Ruth J F and Wright, Alan F and Chandak, Giriraj R and Vollenweider, Peter and Shuldiner, Alan R and Ridker, Paul M and Rotter, Jerome I and Sattar, Naveed and Gyllensten, Ulf and North, Kari E and Pirastu, Mario and Psaty, Bruce M and Weir, David R and Laakso, Markku and Gudnason, Vilmundur and Takahashi, Atsushi and Chambers, John C and Kooner, Jaspal S and Strachan, David P and Campbell, Harry and Hirschhorn, Joel N and Perola, Markus and Polasek, Ozren and Wilson, James F} } @article {7724, title = {Trans-ethnic meta-analysis of white blood cell phenotypes.}, journal = {Hum Mol Genet}, volume = {23}, year = {2014}, month = {2014 Dec 20}, pages = {6944-60}, abstract = {

White blood cell (WBC) count is a common clinical measure used as a predictor of certain aspects of human health, including immunity and infection status. WBC count is also a complex trait that varies among individuals and ancestry groups. Differences in linkage disequilibrium structure and heterogeneity in allelic effects are expected to play a role in the associations observed between populations. Prior genome-wide association study (GWAS) meta-analyses have identified genomic loci associated with WBC and its subtypes, but much of the heritability of these phenotypes remains unexplained. Using GWAS summary statistics for over 50 000 individuals from three diverse populations (Japanese, African-American and European ancestry), a Bayesian model methodology was employed to account for heterogeneity between ancestry groups. This approach was used to perform a trans-ethnic meta-analysis of total WBC, neutrophil and monocyte counts. Ten previously known associations were replicated and six new loci were identified, including several regions harboring genes related to inflammation and immune cell function. Ninety-five percent credible interval regions were calculated to narrow the association signals and fine-map the putatively causal variants within loci. Finally, a conditional analysis was performed on the most significant SNPs identified by the trans-ethnic meta-analysis (MA), and nine secondary signals within loci previously associated with WBC or its subtypes were identified. This work illustrates the potential of trans-ethnic analysis and ascribes a critical role to multi-ethnic cohorts and consortia in exploring complex phenotypes with respect to variants that lie outside the European-biased GWAS pool.

}, keywords = {African Americans, Asian Continental Ancestry Group, Bayes Theorem, European Continental Ancestry Group, Genome, Human, Genome-Wide Association Study, Genotype, Humans, Leukocyte Count, Leukocytes, Linkage Disequilibrium, Phenotype, Polymorphism, Single Nucleotide, Quantitative Trait Loci}, issn = {1460-2083}, doi = {10.1093/hmg/ddu401}, author = {Keller, Margaux F and Reiner, Alexander P and Okada, Yukinori and van Rooij, Frank J A and Johnson, Andrew D and Chen, Ming-Huei and Smith, Albert V and Morris, Andrew P and Tanaka, Toshiko and Ferrucci, Luigi and Zonderman, Alan B and Lettre, Guillaume and Harris, Tamara and Garcia, Melissa and Bandinelli, Stefania and Qayyum, Rehan and Yanek, Lisa R and Becker, Diane M and Becker, Lewis C and Kooperberg, Charles and Keating, Brendan and Reis, Jared and Tang, Hua and Boerwinkle, Eric and Kamatani, Yoichiro and Matsuda, Koichi and Kamatani, Naoyuki and Nakamura, Yusuke and Kubo, Michiaki and Liu, Simin and Dehghan, Abbas and Felix, Janine F and Hofman, Albert and Uitterlinden, Andr{\'e} G and van Duijn, Cornelia M and Franco, Oscar H and Longo, Dan L and Singleton, Andrew B and Psaty, Bruce M and Evans, Michelle K and Cupples, L Adrienne and Rotter, Jerome I and O{\textquoteright}Donnell, Christopher J and Takahashi, Atsushi and Wilson, James G and Ganesh, Santhi K and Nalls, Mike A} } @article {1790, title = {Multiple loci are associated with white blood cell phenotypes.}, journal = {PLoS Genet}, volume = {7}, year = {2011}, month = {2011 Jun}, pages = {e1002113}, abstract = {

White blood cell (WBC) count is a common clinical measure from complete blood count assays, and it varies widely among healthy individuals. Total WBC count and its constituent subtypes have been shown to be moderately heritable, with the heritability estimates varying across cell types. We studied 19,509 subjects from seven cohorts in a discovery analysis, and 11,823 subjects from ten cohorts for replication analyses, to determine genetic factors influencing variability within the normal hematological range for total WBC count and five WBC subtype measures. Cohort specific data was supplied by the CHARGE, HeamGen, and INGI consortia, as well as independent collaborative studies. We identified and replicated ten associations with total WBC count and five WBC subtypes at seven different genomic loci (total WBC count-6p21 in the HLA region, 17q21 near ORMDL3, and CSF3; neutrophil count-17q21; basophil count- 3p21 near RPN1 and C3orf27; lymphocyte count-6p21, 19p13 at EPS15L1; monocyte count-2q31 at ITGA4, 3q21, 8q24 an intergenic region, 9q31 near EDG2), including three previously reported associations and seven novel associations. To investigate functional relationships among variants contributing to variability in the six WBC traits, we utilized gene expression- and pathways-based analyses. We implemented gene-clustering algorithms to evaluate functional connectivity among implicated loci and showed functional relationships across cell types. Gene expression data from whole blood was utilized to show that significant biological consequences can be extracted from our genome-wide analyses, with effect estimates for significant loci from the meta-analyses being highly corellated with the proximal gene expression. In addition, collaborative efforts between the groups contributing to this study and related studies conducted by the COGENT and RIKEN groups allowed for the examination of effect homogeneity for genome-wide significant associations across populations of diverse ancestral backgrounds.

}, keywords = {Genetic Loci, Genome-Wide Association Study, Humans, Leukocyte Count, Leukocytes, Molecular Epidemiology, Multigene Family, Phenotype, Polymorphism, Single Nucleotide, Ubiquitin-Protein Ligases}, issn = {1553-7404}, doi = {10.1371/journal.pgen.1002113}, author = {Nalls, Michael A and Couper, David J and Tanaka, Toshiko and van Rooij, Frank J A and Chen, Ming-Huei and Smith, Albert V and Toniolo, Daniela and Zakai, Neil A and Yang, Qiong and Greinacher, Andreas and Wood, Andrew R and Garcia, Melissa and Gasparini, Paolo and Liu, Yongmei and Lumley, Thomas and Folsom, Aaron R and Reiner, Alex P and Gieger, Christian and Lagou, Vasiliki and Felix, Janine F and V{\"o}lzke, Henry and Gouskova, Natalia A and Biffi, Alessandro and D{\"o}ring, Angela and V{\"o}lker, Uwe and Chong, Sean and Wiggins, Kerri L and Rendon, Augusto and Dehghan, Abbas and Moore, Matt and Taylor, Kent and Wilson, James G and Lettre, Guillaume and Hofman, Albert and Bis, Joshua C and Pirastu, Nicola and Fox, Caroline S and Meisinger, Christa and Sambrook, Jennifer and Arepalli, Sampath and Nauck, Matthias and Prokisch, Holger and Stephens, Jonathan and Glazer, Nicole L and Cupples, L Adrienne and Okada, Yukinori and Takahashi, Atsushi and Kamatani, Yoichiro and Matsuda, Koichi and Tsunoda, Tatsuhiko and Tanaka, Toshihiro and Kubo, Michiaki and Nakamura, Yusuke and Yamamoto, Kazuhiko and Kamatani, Naoyuki and Stumvoll, Michael and T{\"o}njes, Anke and Prokopenko, Inga and Illig, Thomas and Patel, Kushang V and Garner, Stephen F and Kuhnel, Brigitte and Mangino, Massimo and Oostra, Ben A and Thein, Swee Lay and Coresh, Josef and Wichmann, H-Erich and Menzel, Stephan and Lin, JingPing and Pistis, Giorgio and Uitterlinden, Andr{\'e} G and Spector, Tim D and Teumer, Alexander and Eiriksdottir, Gudny and Gudnason, Vilmundur and Bandinelli, Stefania and Frayling, Timothy M and Chakravarti, Aravinda and van Duijn, Cornelia M and Melzer, David and Ouwehand, Willem H and Levy, Daniel and Boerwinkle, Eric and Singleton, Andrew B and Hernandez, Dena G and Longo, Dan L and Soranzo, Nicole and Witteman, Jacqueline C M and Psaty, Bruce M and Ferrucci, Luigi and Harris, Tamara B and O{\textquoteright}Donnell, Christopher J and Ganesh, Santhi K} }