polygene


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polygene

[′päl·i‚jēn]
(genetics)
One of a group of nonallelic genes that collectively control a quantitative character.
(geology)
An igneous rock composed of two or more minerals. Also known as polymere.
References in periodicals archive ?
The model E revealed that AUDPC was controlled by mixed two additive dominant-epistatic major genes plus additive dominant-epistasis of polygene. Regarding AUDPC, the negative and equal additive (da, db) effect (-53.68) was exhibited by two major genes (A & B).
Genetic effects for controlling grain filling duration in terms of polygene in wheat have previously been determined using either diallel or generation mean analysis as statistical procedure.
In the base population, the polygene effect [u.sub.i] for each individual was obtained randomly from a normal distribution N (0, [[sigma].sup.2.sub.u]J).
We provide an evidence that quantitative traits that may be controlled by polygenes and a single gene or mutation may lead to a host of alterations in multiple traits.
(25), that patients with a clinical diagnosis of FH but with no identified mutation (FH/M-) have a significantly higher mean LDL-C-raising SNP score than individuals from the general population (combined sample P < 2.2 X [10.sup.-16]), which suggests that their high plasma LDL-C concentrations are considerably influenced by polygenes. In addition, as previously reported, FH patients who carry an FH-causing mutation (FH/M+) also had higher mean LDL-C SNP scores than the WHII cohort (P = 0.04), which confirms results from Talmud et al.
In brief, SOLAR incorporates the information contained in participant pedigrees to obtain maximum likelihood estimates for the proportion of unexplained variance due to additive genetic effects from polygenes ([[delta].sup.2.sub.g]) and the proportion of variance due to unmeasured environmental covariates, measurement error, and nonadditive genetic effects ([[delta].sup.2.sub.e]).
Each phenotype has revealed different patterns of inheritance such as two-allele gene with co-dominant inheritance (7,8), oligogenic or polygenic model (9-11), recessive (12), two locus recessive13, mixed with recessive inheritance (14), and single locus with contribution for polygenes (15) although some studies have failed to demonstrate any autosomal patterns of inheritance (7).
Mapping polygenes. Annual Review of Genetics, New York, v.27, p.205-233, 1993.
For this purpose, no molecular data are used, the aim being to test hypotheses about whether one or more major genes and/or polygenes can account for the observed pattern of familial aggregation, the mode of inheritance, and to estimate the parameters of the best-fitting genetic model [Thomas, 2004].
Afin de bien se situer dans un systeme mondialise, les individus, les collectivites plus polygenes ont besoin de creer des politiques conscientes, des trajectoires fondees sur un desir profond de demarches rationnelles, allant dans le sens de l'auto-determination.