Additive genetic effects on embryo viability in a whitefish (Salmonidae) influenced by the water mould Saprolegnia ferax

Détails

ID Serval
serval:BIB_826A4419446F
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Additive genetic effects on embryo viability in a whitefish (Salmonidae) influenced by the water mould Saprolegnia ferax
Périodique
Journal of Bacteriology and Parasitology
Auteur(s)
Clark E.S., Wedekind C.
ISSN
2155-9597
Statut éditorial
Publié
Date de publication
2011
Peer-reviewed
Oui
Pages
4
Langue
anglais
Notes
This article was originally published in a special issue, Parasite Ecology handled by Editor(s). Dr. J. Jacob Parnell, Utah State Universit, USA
Résumé
Animals and plants are associated with symbiotic microbes whose roles range from mutualism to commensalism to parasitism. These roles may not only be taxon-specific but also dependent on environmental conditions and host factors. To experimentally test these possibilities, we drew a random sample of adult whitefish from a natural population, bred them in vitro in a full-factorial design in order to separate additive genetic from maternal environmental effects on offspring, and tested the performance of the resulting embryos under different environmental conditions. Enhancing the growth of symbiotic microbes with supplemental nutrients released cryptic additive genetic variance for viability in the fish host. These effects vanished with the concurrent addition of the water mould Saprolegnia ferax. Our findings demonstrate that the heritability of host fitness is environment-specific and critically depends on the interaction between symbiotic microbes.
Mots-clé
Coregonus sp., Saprolegnia sp., Symbiotic microbe, Fish embryo, Cryptic genetic variation
Open Access
Oui
Création de la notice
05/12/2011 8:31
Dernière modification de la notice
20/08/2019 14:42
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