gal·to·ni·an in·her·i·tance

inheritance in which a measurable phenotype is generated by many loci, the contributions of which are statistically independent, additive, and of about equal value. (The latter are in accordance with the classic central limit therein and justify the use of the multivariate normal distribution in galtonian genetics.)

Synonym(s): polygenic inheritance

Farlex Partner Medical Dictionary © Farlex 2012

polygenic inheritance

or quantitative inheritance a genetical system in which a number of genes (more than two) is involved in the control of a character, the character being described as ‘quantitative’ in that it shows a wide range of variability that can be measured (see HERITABILITY). Each ‘polygene’ in the system has only a small effect on the character and cannot be detected individually The expression of a polygenic character is strongly affected by the environment in which the individual exists. For example, human height is affected by diet, human intelligence scores are affected by the social background.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

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References in periodicals archive

Androgenetic alopecia is a type of hair loss that is diffuse, symmetric and progressive affecting both sexes.1 It is an androgen-dependent genetically mediated autosomal dominant disorder with polygenic inheritance.2 It affects both genders but it is more common in men affecting 50%2 as compared to females affecting only 30%.3 Hair thinning begins between the ages of 12-40 years but the frequency increases with age.

Frequency of deranged blood lipids in male patients with androgenetic alopecia

The non-allelic effects revealed that this trait has polygenic inheritance but complex.

GENE ACTION APPRAISAL FOR SEED YIELD AND RELATED TRAITS IN BREAD WHEAT

The class will receive the following laboratory kits: Understanding the Human Genome, DNA Isolation, Eye Color and Polygenic Inheritance, Genetically Modified Food, a Plasmid Simulation, along with a dihybrid cross poster.

IRTAF grant helps students understand new advances in biological research

There is no evidence suggesting that epignathus caused by environmental agents, mendelian or polygenic inheritance. Sporadic chromosomal changes had been reported, but usually, it has not reported to be associated with epignathus.[sup][5] Chromosomal analysis of this case revealed a normal male karyotype.

Congenital Giant Epignathus with Intracranial Extension in a Fetal

According to Peck and Peck (4) many observations have justified polygenic inheritance theory, such as the increased prevalence of dental anomalies and significant differences in gender predilection.

Bilateral transposition--a rare case with a literature review/Bilateral transpozisyon--literatur taramasi esliginde nadir bir vaka

Very little is known about the polygenic inheritance of skin colour.

Characteristics of skin colour

However the larger estimates of the inflation factors do not have to reflect the population stratification (Yang et al., 2011) under especially polygenic inheritance as was also pointed out by Lee et al.

Investigations on genetic architecture of hairy loci in dairy cattle by using single and whole genome regression approaches

Congenital abdominal hernia might be due to anatomical variation, polygenic inheritance or infectious diseases (Tyagi and Singh, 2010).

Hernioplasty for repair of congenital lateral abdominal hernia in a calf

However inheritance of some traits involves complex genetic phenomena such as co- dominance sex-linked genes and polygenic inheritance (Batul 2010).

Some Interesting Facts About Tongue Rolling Trait in Humans

The involvement of multiple genes (termed polygenic inheritance) has a number of consequences.

Calculating genetic risk of becoming ill; Adrian Harwood, professor of neurocellular biology at Cardiff University

Polygenic inheritance refers to conditions determined exclusively by a large number of genes, each with a small effect, acting addictively (i.e.

Cleft lip and palate: etiological factors, a review

Researchers also verified that resistance to the pathogen in this population has polygenic inheritance, is conditioned by both additive and dominance genetic effects, and that genotypes with high resistance were rare in the germplasm at that time.

Strawberry breeding improves genetic resistance to Verticillium wilt