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Quantitative trait loci affecting morphology traits in gilthead seabream (Sparus aurata L.) |
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| Authors: | D. Loukovitis C. Batargias E. Sarropoulou A. P. Apostolidis G. Kotoulas A. Magoulas C. S. Tsigenopoulos D. Chatziplis |
| Affiliation: | 1. Department of Animal Production, Animal Breeding and Genetics, School of Agricultural Technology, Alexander Technological Institute of Thessaloniki, , Sindos, 57400 Greece;2. Department of Animal Production, Faculty of Agriculture, Laboratory of Ichthyology and Fisheries, Aristotle University of Thessaloniki, , Thessaloniki, 54124 Greece;3. Department of Aquaculture and Fisheries Management, Laboratory of Applied Genetics and Fish Breeding, School of Agricultural Technology, Technological Educational Institute of Messolonghi, , Messolonghi, 30200 Greece;4. Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Center for Marine Research, , Heraklion, 71003 Greece |
| Abstract: | We report a quantitative trait loci (QTL) mapping study on 18 morphometric characters in gilthead seabream based on a total of 74 informative microsatellite markers genotyped in 409 offspring coming from 10 paternal half‐sib families. Statistical analysis was carried out using a linear regression approach, and various suggestive and significant morphology QTL were detected in three (9, 21 and 25) of nine linkage groups examined. Fitting body weight as a covariate reduced the significance of some QTL but revealed three new QTL in other linkage groups (LG6 and LG10). Current results combined with those obtained from previous studies underline highly significant loci affecting overall growth and morphology in S. aurata. |
| Keywords: | aquaculture QTL Sparidae morphometric |