Encyclopedia of Animal Cognition and Behavior

Living Edition
| Editors: Jennifer Vonk, Todd Shackelford

Additive Genetic Variance

  • Vertika Singh
  • Kiran SinghEmail author
Living reference work entry
DOI: https://doi.org/10.1007/978-3-319-47829-6_5-1

Definition

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.

Introduction

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 Variance

Phenotypic variability (VP) within a...

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References

  1. Byers, D. (2008). Components of phenotypic variance. Nature Education, 1(1), 161.Google Scholar
  2. Falconer, D. S., & Mackay, T. F. C. (1981). Introduction to quantitative genetics. Longman London Google Scholar.Google Scholar
  3. Fischer, K., Bot, A. N. M., Zwaan, B. J., & Brakefield, P. M. (2004). Genetic and environmental sources of egg size variation in the butterfly Bicyclus anynana. Heredity, 92(3), 163.CrossRefPubMedGoogle Scholar
  4. Lynch, M., & Walsh, B. (1998). Genetics and analysis of quantitative traits (Vol. 1, pp. 535–557). Sunderland: Sinauer.Google Scholar
  5. Saastamoinen, M. (2008). Heritability of dispersal rate and other life history traits in the Glanville fritillary butterfly. Heredity, 100(1), 39.CrossRefPubMedGoogle Scholar
  6. Waldmann, P. (2001). Additive and non-additive genetic architecture of two different-sized populations of Scabiosa canescens. Heredity, 86(6), 648–657.CrossRefPubMedGoogle Scholar

Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  1. 1.Department of Molecular & Human GeneticsBanaras Hindu UniversityVaranasiIndia

Section editors and affiliations

  • Akash Gautam
    • 1
  1. 1.Centre for Neural and Cognitive Sciences, School of Medical SciencesUniversity of HyderabadHyderabadIndia