Table 1.
Some iconic cases of positive selection in the human genome
GeneFunctionAssociated phenotypeMain selection methodPopulationDatePutative selective factorReferences
     yr   
LCT Glycoside hydrolase Lactose tolerance Haplotype homozygosity Europeans  ∼7,000–11,000  Dairy farming Enattah et al., 2002; Bersaglieri et al., 2004; Tishkoff et al., 2007; Itan et al., 2009; Ranciaro et al., 2014; Mathieson et al., 2015  
    Africans ∼3,000–7,000   
EDAR Cell surface receptor for ectodysplasin A Hair straightness, changes of epidermal appendages Haplotype homozygosity East Asians ∼10,000 Thermo-regulation Sabeti et al., 2007; Barreiro et al., 2008; Bryk et al., 2008; Tan et al., 2013  
SLC24A5 Potassium-dependent sodium/calcium exchanger Light skin color Haplotype homozygosity Europeans ∼18,700 Low environmental UV radiation exposure Lamason et al., 2005; Barreiro et al., 2008; Beleza et al., 2013  
EPAS1 Hypoxia-inducible factor Response to hypoxic challenge Haplotype homozygosity Tibetans ∼18,200 Altitude-induced hypoxia Simonson et al., 2010; Yi et al., 2010; Peng et al., 2011  
G6PD Pentose monophosphate shunt of glycolysis Resistance to malaria Haplotype homozygosity Africans  ∼3,800–11,700  Plasmodium falciparum/vivax Ruwende et al., 1995; Tishkoff et al., 2001; Saunders et al., 2002; Louicharoen et al., 2009  
    Southeast Asians ∼1,500   
DARC Duffy antigen receptor for chemokines Resistance to malaria Population differentiation Africans ∼33,000 Plasmodium vivax Hamblin and Di Rienzo, 2000; Hamblin et al., 2002  
CD36 Membrane protein Resistance to malaria Composite statistics; population differentiation Africans ∼3,900 Plasmodium falciparum Newbold et al., 1999; Ayodo et al., 2007; Fry et al., 2009; Bhatia et al., 2011; Deschamps et al., 2016  
TLR1 Pathogen recognition receptor Lower inflammatory response Composite statistics; haplotype homozygosity Europeans ∼11,000 Barreiro et al., 2009; Deschamps et al., 2016  
GeneFunctionAssociated phenotypeMain selection methodPopulationDatePutative selective factorReferences
     yr   
LCT Glycoside hydrolase Lactose tolerance Haplotype homozygosity Europeans  ∼7,000–11,000  Dairy farming Enattah et al., 2002; Bersaglieri et al., 2004; Tishkoff et al., 2007; Itan et al., 2009; Ranciaro et al., 2014; Mathieson et al., 2015  
    Africans ∼3,000–7,000   
EDAR Cell surface receptor for ectodysplasin A Hair straightness, changes of epidermal appendages Haplotype homozygosity East Asians ∼10,000 Thermo-regulation Sabeti et al., 2007; Barreiro et al., 2008; Bryk et al., 2008; Tan et al., 2013  
SLC24A5 Potassium-dependent sodium/calcium exchanger Light skin color Haplotype homozygosity Europeans ∼18,700 Low environmental UV radiation exposure Lamason et al., 2005; Barreiro et al., 2008; Beleza et al., 2013  
EPAS1 Hypoxia-inducible factor Response to hypoxic challenge Haplotype homozygosity Tibetans ∼18,200 Altitude-induced hypoxia Simonson et al., 2010; Yi et al., 2010; Peng et al., 2011  
G6PD Pentose monophosphate shunt of glycolysis Resistance to malaria Haplotype homozygosity Africans  ∼3,800–11,700  Plasmodium falciparum/vivax Ruwende et al., 1995; Tishkoff et al., 2001; Saunders et al., 2002; Louicharoen et al., 2009  
    Southeast Asians ∼1,500   
DARC Duffy antigen receptor for chemokines Resistance to malaria Population differentiation Africans ∼33,000 Plasmodium vivax Hamblin and Di Rienzo, 2000; Hamblin et al., 2002  
CD36 Membrane protein Resistance to malaria Composite statistics; population differentiation Africans ∼3,900 Plasmodium falciparum Newbold et al., 1999; Ayodo et al., 2007; Fry et al., 2009; Bhatia et al., 2011; Deschamps et al., 2016  
TLR1 Pathogen recognition receptor Lower inflammatory response Composite statistics; haplotype homozygosity Europeans ∼11,000 Barreiro et al., 2009; Deschamps et al., 2016  

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