allele frequency


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Related to allele frequency: Genotype frequency

allele frequency

A term used in population genetics for the number of copies of a particular allele divided by the number of copies of all alleles at that specific genetic locus in a population of interest. Allele frequency is a measure of a population’s genetic diversity: the higher the allele frequency, the greater the population’s consanguinity.
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Allele frequencyclick for a larger image
Fig. 23 Allele frequency . Calculation of allele frequency from genotype frequency.

allele frequency

or

gene frequency

the proportion of a particular ALLELE of a gene in a population, relative to other alleles of the same gene. For example, if a gene has two alleles, A and a , and the frequency of A is 0.6, then the frequency of a will be 1.0 - 0.6 = 0.4. The allele frequency can be calculated from the GENOTYPE FREQUENCY; See Fig. 23 .
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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Table-3: Genotype and Allele Frequency Distribution of the study subjects.
Association of Vaspin levels and its SNP rs2236242 with Gestational Diabetes at a tertiary care setting
Description and power analysis of two tests for detecting recent population bottlenecks from allele frequency data.
Comparative Population Genetics of Red Imported Fire Ants (Solenopsis invicta) at the University of Central Oklahoma and Lake Arcadia, Edmond, Oklahoma
In contrast, the allele frequency results for the c.501A>G (p.Pro167Pro) SNP in exon 3 showed a non-significant association with plumage color (Table 3).
Identification of polymorphisms in MITF and DCT genes and their associations with plumage colors in Asian duck breeds
Our analysis identified 31 HLA-A alleles in influenza patients (INF-P) and 38 in asymptomatic healthy contacts (INF-C) out of which 7 of the alleles in the INF-P group showed an allele frequency (AF) higher than 6%; the most common were A * 02:01:01 (24.6%), A * 68:01:02 (11.6%), A* 24:02:01 (7.9%), A* 03:01:01 (7.6%), A* 31:01:02 (7.2%), and A * 01:01:01 (6.5%).
An Increased Frequency in HLA Class I Alleles and Haplotypes Suggests Genetic Susceptibility to Influenza A (H1N1) 2009 Pandemic: A Case-Control Study
The allele frequency differences between ethnic groups most likely results from evolutionary process and population genetic behaviour.
VDR FOK-I POLYMORPHISM IN THE POPULATION OF KERALA, INDIA
In the AD group, C allele frequency of the TLR2 R753Q SNP was 99.29%> and T allele frequency was 0.71%>; in the control group, C and T allele frequencies for the TLR2 R753Q SNP were 97.83%> and 2.17%, respectively.
Lack of Association Between Toll-like Receptor 2 Polymorphisms (R753Q and A-16934T) and Atopic Dermatitis in Children from Thrace Region of Turkey
For allele frequency, the result was similar with the genotype analysis that better metformin efficacy was found in the T allele.
STK11 rs2075604 Polymorphism Is Associated with Metformin Efficacy in Chinese Type 2 Diabetes Mellitus
While there is no significant difference for the PECAM-1 (+373 C/G) in allele frequency between CAL in the Kawasaki disease group (+373 C/G: [chi square] = 5.19, P = 0.0745).
Association of PECAM-1 Gene Polymorphisms with Kawasaki Disease in Chinese Children
Results: Compared with healthy controls, the allele frequency of HLA-DRB1*0701 was increased in the Uyghur patients (P = 0.008) but not in the Han patients (P = 0.869).
Associations of Human Leukocyte Antigen-DRB1 Alleles with Nasopharyngeal Carcinoma and Its Clinical Significance in Xinjiang Uyghur Autonomous Region of China
Polymorphisms Allele Frequency OR Sample size Power * (%) (Cases/controls) (%) rs320 G 39 2.0 182/182 86.0 133/269 89.3 rs285 T 49 2.0 162/162 86.0 133/269 92.5 rs328 G 15 0.5 244/244 86.0 133/269 78.8 * Allele frequency taking from reference 7 Table 2.
Polimorfismos en el gen lipoproteina lipasa como marcadores geneticos para enfermedad cerebrovascular en la poblacion Colombiana: estudio de casos y controles
Secondly, we assessed HLA-B27 allele frequency in AS patients.
Association of rs11209032 and rs1004819 polymorphisms in interleukin-23 receptor gene with ankylosing spondylitis

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