Microsatellite marker based genetic linkage maps of Oreochromis aureus and O. niloticus (Cichlidae): extensive linkage group segment homologies revealed

Authors: McConnell¹; Beynon¹; Leamon¹; Skibinski¹

Source: Animal Genetics, Volume 31, Number 3, June 2000 , pp. 214-218(5)

Abstract:

Summary

Partial genetic linkage maps, based on microsatellite markers, were constructed for two tilapia species, Oreochromis aureus and Oreochromis niloticus using an interspecific backcross population. The linkage map for O. aureus comprised 28 markers on 10 linkage groups and covered 212·8 cM. Nine markers were mapped to four linkage groups on an O. niloticus female linkage map covering 40·6 cM. Results revealed a high degree of conservation of synteny between the linkage groups defined inO. aureus and the previously published genetic linkage map of O. niloticus.

Keywords: tilapia; type II markers; comparative mapping; O. aureus; O. niloticus

Document Type: Research article

DOI: 10.1046/j.1365-2052.2000.00631.x

Affiliations: 1: School of Biological Sciences, University of Wales Swansea, Singleton Park, Swansea SA2 8PP, UK

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