Additive Genetic Variance
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Additive variation is the total effect on a trait stemming from one or more gene loci. Each locus contributes to the trait in a measurable way.
Within a population, there are numerous potential sources of phenotypic variations. Each of these sources signifies a distinctive underlying origin. These sources of phenotypic variations decide whether that trait has an evolutionary potential and holds an ability to respond to natural/artificial selection or whether it can respond to environmental variations. A large number of investigators across the world are engaged in determining the significance of both the genetic and environmental factors in regulating the phenotypic expression of a particular trait. These types of information will help them in predicting the evolutionary dynamics of a whole population with reference to a particular trait (Waldmann 2001; Fisher et al. 2004; Byers 2008; Saastamoinen 2008).
Phenotypic variability (VP) within a...
KeywordsInteraction Genetic Variances Genetic Diversity Bean Weight Individual Phenotypic Differences Epistatic Variance
- Byers, D. (2008). Components of phenotypic variance. Nature Education, 1(1), 161.Google Scholar
- Falconer, D. S., & Mackay, T. F. C. (1981). Introduction to quantitative genetics. Longman London Google Scholar.Google Scholar
- Lynch, M., & Walsh, B. (1998). Genetics and analysis of quantitative traits (Vol. 1, pp. 535–557). Sunderland: Sinauer.Google Scholar