Refinement of the chromosomal position of the X linked juvenile retinoschisis gene

A. A. Bergen, J. B. ten Brink, L. M. Bleeker-Wagemakers, M. J. van Schooneveld

Research output: Contribution to journalComment/Letter to the editorAcademic

10 Citations (Scopus)

Abstract

Linkage analysis was carried out in seven X linked juvenile retinoschisis (XLRS) families using four DNA probes and four CA repeat polymorphisms from the Xp22 region. Close linkage was observed between the XLRS locus and DXS207 (theta max = 0.04, Zmax = 3.71), DXS999 (theta max = 0.00, Zmax = 4.59), DXS365 (theta max = 0.07, Zmax = 2.22), and DXS451 (theta max = 0.05, Zmax = 3.26). The analysis of recombination breakpoints and multipoint linkage analysis suggests the order Xpter-DXS16-(DXS43, DXS207)-RS-DXS365-(DXS451, DXS41)-Xcen, thereby refining the position of the XLRS locus to an interval of approximately 3-4 cM. These results improve the feasibility of diagnosis in XLRS considerably, since carriers of this disease cannot be identified clinically
Original languageEnglish
Pages (from-to)972-975
JournalJournal of medical genetics
Volume31
Issue number12
DOIs
Publication statusPublished - 1994

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