Results 1 to 10 of about 3,081,667 (237)

Heterozygote advantage for fecundity. [PDF]

open access: goldPLoS ONE, 2006
Heterozygote advantage, or overdominance, remains a popular and persuasive explanation for the maintenance of genetic variation in natural populations in the face of selection.
Neil J Gemmell, Jon Slate
doaj   +8 more sources

Heterozygote Advantage Probably Maintains Rhesus Factor Blood Group Polymorphism: Ecological Regression Study. [PDF]

open access: goldPLoS ONE, 2016
Rhesus factor polymorphism has been an evolutionary enigma since its discovery in 1939. Carriers of the rarer allele should be eliminated by selection against Rhesus positive children born to Rhesus negative mothers.
Jaroslav Flegr
doaj   +5 more sources

Heterozygote advantage at HLA class I and II loci and reduced risk of colorectal cancer [PDF]

open access: goldFrontiers in Immunology, 2023
ObjectiveReduced diversity at Human Leukocyte Antigen (HLA) loci may adversely affect the host’s ability to recognize tumor neoantigens and subsequently increase disease burden. We hypothesized that increased heterozygosity at HLA loci is associated with
Ya-Yu Tsai   +29 more
doaj   +5 more sources

The heterozygote advantage of the Chuvash polycythemia VHLR200W mutation may be protection against anemia [PDF]

open access: goldHaematologica, 2011
The germ-line loss-of-function VHLR200W mutation is common in Chuvashia, Russia and occurs in other parts of the world. VHLR200W homozygotes have elevated hypoxia inducible factor (HIF)-1 and HIF-2 levels, increased hemoglobin concentration, propensity ...
Galina Y. Miasnikova   +8 more
doaj   +5 more sources

Heterozygote advantage can explain the extraordinary diversity of immune genes [PDF]

open access: goldeLife, 2018
The majority of highly polymorphic genes are related to immune functions and with over 100 alleles within a population, genes of the major histocompatibility complex (MHC) are the most polymorphic loci in vertebrates.
Mattias Siljestam, Claus Rueffler
doaj   +7 more sources

Heterozygote Advantage of the Type II Deiodinase Thr92Ala Polymorphism on Intrahospital Mortality of COVID-19. [PDF]

open access: bronzeJ Clin Endocrinol Metab, 2022
Context The type 2 deiodinase and its Thr92Ala-DIO2 polymorphism have been linked to clinical outcomes in acute lung injury and pulmonary fibrosis. Objective Our objectives were to evaluate were cumulative mortality during admission according to Thr92Ala-
de Lima Beltrão FE   +16 more
europepmc   +4 more sources

Heterozygote advantage and pleiotropy contribute to intraspecific color trait variability. [PDF]

open access: hybridEvolution, 2022
The persistence of intrapopulation phenotypic variation typically requires some form of balancing selection because drift and directional selection eventually erode genetic variation.
De Pasqual C   +5 more
europepmc   +4 more sources

Heterozygote Advantage of the rs3794624 Polymorphism in CYBA for Resistance to Tuberculosis in Two Chinese Populations. [PDF]

open access: goldSci Rep, 2016
Phagocyte Nicotinamide Adenine Dinucleotide Phosphate (NADPH) oxidase complex is a key enzyme that catalyzes the production of reactive oxygen species, which mediate oxygen-dependent killing of microorganisms, such as Mycobacterium tuberculosis. P22phox,
Liu Q   +11 more
europepmc   +4 more sources

Genome-wide analysis indicates association between heterozygote advantage and healthy aging in humans [PDF]

open access: yesBMC Genetics, 2019
Background Genetic diversity is known to confer survival advantage in many species across the tree of life. Here, we hypothesize that such pattern applies to humans as well and could be a result of higher fitness in individuals with higher genomic ...
Ke Xu   +9 more
doaj   +3 more sources

Overdominance effect of the bovine ghrelin receptor (GHSR1a)-DelR242 locus on growth in Japanese Shorthorn weaner bulls: heterozygote advantage in bull selection and molecular mechanisms. [PDF]

open access: goldG3 (Bethesda), 2014
Ghrelin and the ghrelin receptor (GHSR1a) are involved in growth hormone secretion, food intake, and several other important functions. Ghrelin acts on GHSR1a and induces signal transduction via the Gαq subunit.
Komatsu M   +11 more
europepmc   +4 more sources

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