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Mar Biotechnol (NY). 2015 Feb;17(1):8-22. doi: 10.1007/s10126-014-9589-5. Epub 2014 Aug 9.

First haploid genetic map based on microsatellite markers in Senegalese sole (Solea senegalensis, Kaup 1858).

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  • 1Facultad de Ciencias, Departamento de Genética, Universidad de Granada, 18071, Granada, Spain.

Abstract

The Senegalese sole (Solea senegalensis, Kaup 1858) is a flatfish species of great value for aquaculture. In this study, we develop the first linkage map in this species based on microsatellite markers characterized from genomic DNA libraries and EST databases of Senegalese sole and from other flatfish species. Three reference gynogenetic families were obtained by chromosome-manipulation techniques: two haploid gynogenetics, used to assign and order microsatellites to linkage groups and another diploid gynogenetic family, used for estimating marker-centromere distances. The consensus map consists of 129 microsatellites distributed in 27 linkage groups (LG), with an average density of 4.7 markers per LG and comprising 1,004 centimorgans (cM). Additionally, 15 markers remained unlinked. Through half-tetrad analysis, we were able to estimate the centromere distance for 81 markers belonging to 24 LG, representing an average of 3 markers per LG. Comparative mapping was performed between flatfish species LG and model fish species chromosomes (stickleback, Tetraodon, medaka, fugu and zebrafish). The usefulness of microsatellite markers and the genetic map as tools for comparative mapping and evolution studies is discussed.

[PubMed - indexed for MEDLINE]
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