Quantitative traits

Heino, M. ORCID: https://orcid.org/0000-0003-2928-3940 (2014). Quantitative traits. In: Stock Identification Methods (Second Edition). Eds. Cadrin, SX, Kerr, LA, & Mariani, S, pp. 59-76 London: Academic Press/Elsevier. ISBN 978-0-12-397003-9 10.1016/B978-0-12-397003-9.00004-7.

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Quantitative traits are phenotypic traits that are determined, jointly with the environment, by many genes of small effect. Most of the directly observable individual characteristics are quantitative traits. Differences in quantitative traits can give valuable signals on existence of separate stock components. Compared to neutral genetic markers, quantitative traits are more sensitive to population structure and may suggest differences where neutral genetic markers fail to show any. However, quantitative traits may also show differences where demographic separation is weak. An important challenge is to understand how the environment influences quantitative traits. Representing quantitative traits as reaction norms makes their dependence on the environment explicit and thereby facilitates their use in stock identification.

Item Type: Book Section
Uncontrolled Keywords: Environmental; Phenotypic plasticity; Population genetics; Reaction norm; Stock structure
Research Programs: Evolution and Ecology (EEP)
Bibliographic Reference: In: SX Cadrin, LA Kerr, S Mariani (Eds); Stock Identification Methods (Second Edition); Academic Press/Elsevier, London, UK pp.59-76
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Depositing User: IIASA Import
Date Deposited: 15 Jan 2016 08:51
Last Modified: 27 Aug 2021 17:24
URI: https://pure.iiasa.ac.at/11128

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