Originally published as Genetics Published Articles Ahead of Print on June 3, 2005.

Genetics, Vol. 170, 1821-1826, August 2005, Copyright © 2005
doi:10.1534/genetics.104.039719

A Microsatellite Linkage Map of the European Sea Bass Dicentrarchus labrax L.

* Laboratory of Aquatic Ecology, Katholieke Universiteit Leuven, B-3000 Leuven, Belgium
{dagger} Roslin Institute, Roslin, Midlothian EH25 9PS, United Kingdom
§ Hellenic Centre for Marine Research Crete, Institute of Marine Biology and Genetics, 71500 Heraklion, Greece
{ddagger} CNR-Istituto di Scienze Marine, Biologia del Mare, Castello 1364/A, I-30122 Venezia, Italy

2 Corresponding author: Laboratory of Aquatic Ecology, Katholieke Universiteit Leuven, Charles de Bériotstraat 32, B-3000 Leuven, Belgium.
E-mail: filip.volckaert{at}bio.kuleuven.be

A genetic linkage map of the European sea bass (Dicentrarchus labrax) was constructed from 174 microsatellite markers, including 145 new markers reported in this study. The mapping panel was derived from farmed sea bass from the North Adriatic Sea and consisted of a single family including both parents and 50 full-sib progeny (biparental diploids). A total of 162 microsatellites were mapped in 25 linkage groups. Eleven loci represent type I (coding) markers; 2 loci are located within the peptide Y (linkage group 1) and cytochrome P450 aromatase (linkage group 6) genes. The sex-averaged map spans 814.5 cM of the sea bass genome. The female map covers 905.9 cM, whereas the male map covers only 567.4 cM. The constructed map represents the first linkage map of European sea bass, one of the most important aquaculture species in Europe.




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