QTL mapping for production traits in Czech Fleckvieh cattle

J. Matějíčková, M. Štípková, G. Sahana, T. Kott, J. Kyseľová, A. Matějíček, B. Kottová, J. Šefrová, M. Krejčová and S. Melčová
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J. Matějíčková: Institute of Animal Science, Prague-Uhříněves, Czech Republic
M. Štípková: Institute of Animal Science, Prague-Uhříněves, Czech Republic
G. Sahana: Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark
T. Kott: Institute of Animal Science, Prague-Uhříněves, Czech Republic
J. Kyseľová: Institute of Animal Science, Prague-Uhříněves, Czech Republic
A. Matějíček: Research and Breeding Institute of Pomology Holovousy Ltd., Holovousy, Czech Republic
B. Kottová: Institute of Animal Science, Prague-Uhříněves, Czech Republic
J. Šefrová: Institute of Animal Science, Prague-Uhříněves, Czech Republic
M. Krejčová: Institute of Animal Science, Prague-Uhříněves, Czech Republic
S. Melčová: Institute of Animal Science, Prague-Uhříněves, Czech Republic

Czech Journal of Animal Science, 2013, vol. 58, issue 9, 396-403

Abstract: The objective of this study was to find QTL for milk production traits in Czech Fleckvieh cattle on chromosomes 6, 7, 11, 14, and 23 where QTL were previously identified in other dairy cattle populations. Sixteen grandsire families were genotyped for 38 microsatellite markers on the selected chromosomes. A QTL mapping model based on variance component analysis was implemented via restricted maximum likelihood (REML) to estimate QTL positions and their effects. A significant QTL affecting fat percentage was found at the beginning of chromosome 14 (0 cM), near marker ILSTS039. Suggestive QTL associated with milk production traits appeared on other studied chromosomes (BTA6, BTA7, BTA11, and BTA23). This first QTL search on five chromosomes in Czech Fleckvieh population showed several suggestive QTL that can be promising for further studies and contribute to better understanding of genetics of milk production in the Czech Fleckvieh cattle.

Keywords: chromosomes; markers; quantitative trait loci; milk traits; cattle; REML (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjs:v:58:y:2013:i:9:id:6939-cjas

DOI: 10.17221/6939-CJAS

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