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Genetics of broodiness in poultry — a review

Romanov, Michael N (2001) Genetics of broodiness in poultry — a review. Asian-Australasian Journal of Animal Science, 14 (11). pp. 1647-1654. ISSN 1011-2367. E-ISSN 1976-5517. (doi:10.5713/ajas.2001.1647) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:46710)

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Abstract

In poultry, the selection against broodiness took up presumably naturally occurred mutations in the White Leghorn breed and led to an almost complete loss of the avian form of parental behaviour (incubation of eggs). Early studies on the genetics of broodiness demonstrated that the trait is polygenic with a major sex-linked effect. The reassessment of the studies on putative genes located on the Z chromosome, which are implicated in the control of broodiness, has resulted in the denial of this hypothesis. The recent experiments bear witness that incubation behaviour in chickens is not controlled by a major gene (or genes) on Z chromosome and there must, therefore, be major autosomal genes contributing to the expression of the behaviour. If a broody gene does exist on the Z chromosome it is one of at least three genes including two dominant autosomal genes, one causing and other one inhibiting incubation behaviour, with probably equal influence.

Item Type: Article
DOI/Identification number: 10.5713/ajas.2001.1647
Projects: [UNSPECIFIED] Royal Society/NATO Postdoctoral Fellowship
Uncontrolled keywords: broodiness; incubation behaviour; poultry; genetics; behavioural trait loci
Subjects: Q Science > QH Natural history > QH426 Genetics
Q Science > QP Physiology (Living systems)
Q Science > QP Physiology (Living systems) > QP506 Molecular biology
S Agriculture > SF Animal culture
Divisions: Divisions > Division of Natural Sciences > Biosciences
Signature Themes: Food Systems, Natural Resources and Environment
Depositing User: Mike Romanov
Date Deposited: 15 Jan 2015 22:25 UTC
Last Modified: 16 Nov 2021 10:18 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/46710 (The current URI for this page, for reference purposes)
Romanov, Michael N: https://orcid.org/0000-0003-3584-4644
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