Validated quantitative trait loci for eggshell quality in experimental and commercial laying hens

Tuiskula-Haavisto, M., Honkatukia, M., Dunn, I.C., Bain, M.M. , De Koning, D.J., Preisinger, R., Schmutz, M., Arango, J., Fischer, D. and Vilkki, J. (2018) Validated quantitative trait loci for eggshell quality in experimental and commercial laying hens. Animal Genetics, 49(4), pp. 329-333. (doi:10.1111/age.12671) (PMID:29797511)

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Abstract

Compromised eggshell quality causes considerable economic losses for the egg industry. Breeding for improved eggshell quality has been very challenging. Eggshell quality is a trait that would greatly benefit from marker‐assisted selection, which would allow the selection of sires for their direct contribution to the trait and would also allow implementation of measurements integrating a number of shell parameters that are difficult to measure. In this study, we selected the most promising autosomal quantitative trait loci (QTL) affecting eggshell quality on chromosomes 2, 3, 6 and 14 from earlier experiments and we extended the F2 population to include 1599 F2 females. The study was repeated on two commercial populations: Lohmann Tierzucht Rhode Island Red line (n = 692 females) and a Hy‐Line White Plymouth Rock line (n = 290 progeny tested males). We analyzed the selected autosomal QTL regions on the three populations with SNP markers at 4–13 SNPs/Mb density. QTL for eggshell quality were replicated on all studied regions in the F2 population. New QTL were detected for eggshell color on chromosomes 3 and 6. Marker associations with eggshell quality traits were validated in the tested commercial lines on chromosomes 2, 3 and 6, thus paving the way for marker‐assisted selection for improved eggshell quality.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Bain, Professor Maureen
Authors: Tuiskula-Haavisto, M., Honkatukia, M., Dunn, I.C., Bain, M.M., De Koning, D.J., Preisinger, R., Schmutz, M., Arango, J., Fischer, D., and Vilkki, J.
College/School:College of Medical Veterinary and Life Sciences > Institute of Biodiversity Animal Health and Comparative Medicine
Journal Name:Animal Genetics
Publisher:Wiley
ISSN:0268-9146
ISSN (Online):1365-2052
Published Online:24 May 2018
Copyright Holders:Copyright © 2018 Stichting International Foundation for Animal Genetics
First Published:First published in Animal Genetics 49(4):329-333
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
403151SABREMaureen BainEuropean Commission (EC)016250 SABRERI BIODIVERSITY ANIMAL HEALTH & COMPMED