Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Divergent selection for inherent fearfulness leads to divergent yolk steroid levels in quail

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Behaviour

Avian yolk steroid levels may vary according to maternal condition or environmental factors, causing epigenetic modulation of offspring phenotype. Here we test whether artificial selection based on divergent duration of tonic immobility (TI) in Japanese quail (i.e., divergent inherent fearfulness) is correlated with divergent levels of yolk steroids. We analysed yolk steroid levels and egg quality in quail selected for either long or short duration of TI. Yolk steroids, i.e., immunoreactive progesterone and androstenedione, were found to be significantly less concentrated in eggs of the high inherent fearfulness line compared to eggs of the low inherent fearfulness line. A similar trend was found with testosterone levels. Larger eggs with lighter eggshell were also found in more fearful quail. Hence, the selection for divergent fearfulness has led to correlated changes in yolk steroid levels and egg quality. These data suggest that hormones of maternal origin, egg quality and genetic background may all contribute to line differences in phenotype. A modulation of progesterone concentrations by selection for behaviour in egg yolk is reported here for the first time. Although the effect of this hormone on avian embryos remains unknown, we argue it may have significant effects on phenotypic outcome.

Affiliations: 1: Konrad-Lorenz-Forschungstelle, University of Vienna, A-4645 Grünau, Austria;, Email: beraline@gmail.com; 2: UMR CNRS 6552 Ethologie Animale et Humaine, Université de Rennes 1, 35042 Rennes, France; 3: Equipe Neurodéveloppement, Institute Génomique Fonctionnelle de Lyon, ENS, 69364 Lyon, France; 4: Konrad-Lorenz-Forschungstelle, University of Vienna, A-4645 Grünau, Austria; 5: University of Veterinary Medicine, Department of Natural Sciences, Biochemistry, Veterinärplatz 1, A-1210 Vienna, Austria

10.1163/156853909X446190
/content/journals/10.1163/156853909x446190
dcterms_title,pub_keyword,dcterms_description,pub_author
6
3
Loading
Loading

Full text loading...

/content/journals/10.1163/156853909x446190
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/156853909x446190
Loading

Article metrics loading...

/content/journals/10.1163/156853909x446190
2009-06-01
2016-12-11

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Behaviour — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation