Inbreeding, microsatellite heterozygosity, and morphological traits in Lipizzan horses

While the negative effects of inbreeding and reduced heterozygosity on fecundity and survival are well established, only a few investigations have been carried out concerning their influence on morphological traits. This topic is of particular interest for a small and closed population such as the L...

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Bibliographic Details
Published in:The Journal of heredity 2003-03, Vol.94 (2), p.125-132
Main Authors: Curik, I, Zechner, P, Solkner, J, Achmann, R, Bodo, I, Dovc, P, Kavar, T, Marti, E, Brem, G
Format: Article
Language:English
Subjects:
anatomy & histology
animal genetics
animal morphology
Animals
Body Constitution
Body Constitution - genetics
Genetic Markers
Genetics
Heredity
Heterozygote
Horses
Horses - anatomy & histology
Horses - genetics
Inbreeding
Microsatellite Repeats
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Summary:While the negative effects of inbreeding and reduced heterozygosity on fecundity and survival are well established, only a few investigations have been carried out concerning their influence on morphological traits. This topic is of particular interest for a small and closed population such as the Lipizzan horse. Thus, 27 morphological traits were measured in 360 Lipizzan mares and were regressed on the individual inbreeding coefficients, as well as on the individual heterozygosity and mean squared distances (mean d2) between microsatellite alleles within an individual. Both individual heterozygosity and mean d2 were based on 17 microsatellite loci dispersed over 14 chromosomes. The results obtained by multivariate analysis reveal significant effects of stud (P
ISSN:0022-1503
1465-7333
DOI:10.1093/jhered/esg029