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A combined AFLP and microsatellite linkage map and pilot comparative genomic analysis of European sea bass Dicentrarchus labrax L.
Chistiakov, D.A.; Tsigenopoulos, C.S.; Lagnel, J.; Guo, Y.-M.; Hellemans, B.; Haley, C.S.; Volckaert, F.A.M.; Kotoulas, G. (2008). A combined AFLP and microsatellite linkage map and pilot comparative genomic analysis of European sea bass Dicentrarchus labrax L. Anim. Genet. 39(6): 623-634. dx.doi.org/10.1111/j.1365-2052.2008.01786.x
In: Animal Genetics. WILEY-BLACKWELL PUBLISHING, INC: Oxford. ISSN 0268-9146; e-ISSN 1365-2052
|  |
| Trefwoorden |
Chemical compounds > Organic compounds > Nucleotides
Genomes
Microsatellites
Polymorphism
Dicentrarchus labrax (Linnaeus, 1758) [WoRMS]; Gasterosteus aculeatus Linnaeus, 1758 [WoRMS]; Moronidae Jordan & Evermann, 1896 [WoRMS]; Teleostei [WoRMS]
Marien/Kust |
| Author keywords |
amplified fragment length polymorphism; comparative map; Dicentrarchuslabrax; genomics; microsatellite; single nucleotide polymorphism;synteny |
| Auteurs | | Top |
- Chistiakov, D.A.
- Tsigenopoulos, C.S.
- Lagnel, J.
- Guo, Y.-M.
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- Hellemans, B.
- Haley, C.S.
- Volckaert, F.A.M.
- Kotoulas, G.
|
|
| Abstract |
European sea bass (Dicentrarchus labrax L., Moronidae, Teleostei) sustains a regional fishery and is commonly farmed in the Mediterranean basin, but has not undergone much long-term genetic improvement. An updated genetic linkage map of the European sea bass was constructed using 190 microsatellites, 176 amplified fragment length polymorphisms and two single nucleotide polymorphisms. From the 45 new microsatellite markers (including 31 type I markers) reported in this study, 28 were mapped. A total of 368 markers were assembled into 35 linkage groups. Among these markers, 28 represented type I (coding) markers, including those located within the peptide Y, SOX10, PXN1, ERA and TCRB genes (linkage groups 1, 7, 16, 17 and 27 respectively). The sex-averaged map spanned 1373.1 centimorgans (cM) of the genome. The female map measured 1380.0 cM, whereas the male map measured 1046.9 cM, leading to a female-to-male (F:M) recombination rate ratio of 1.32:1. The intermarker spacing of the second-generation linkage map of the European sea bass was 3.67 cM, which is smaller than that of the first-generation linkage map (5.03 cM). Comparative mapping of microsatellite flanking regions was performed with five model teleosts and this revealed a high percentage (33.6%) of evolutionarily conserved regions with the three-spined stickleback. |
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