A Locus for Autosomal Dominant Colobomatous Microphthalmia Maps to Chromosome 15q12-q15

Congenital microphthalmia is a common developmental ocular disorder characterized by shortened axial length. Isolated microphthalmia is clinically and genetically heterogeneous and may be inherited in an autosomal dominant, autosomal recessive, or X-linked manner. Here, we studied a five-generation...

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Veröffentlicht in:American journal of human genetics 2000-12, Vol.67 (6), p.1592-1597
Hauptverfasser: Morlé, L., Bozon, M., Zech, J.-C., Alloisio, N., Raas-Rothschild, A., Philippe, C., Lambert, J.-C., Godet, J., Plauchu, H., Edery, P.
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Sprache:eng
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Zusammenfassung:Congenital microphthalmia is a common developmental ocular disorder characterized by shortened axial length. Isolated microphthalmia is clinically and genetically heterogeneous and may be inherited in an autosomal dominant, autosomal recessive, or X-linked manner. Here, we studied a five-generation family of Sephardic Jewish origin that included 38 members, of whom 7 have either unilateral or bilateral microphthalmia of variable severity inherited as an autosomal dominant trait with incomplete penetrance. After exclusion of several candidate loci, we performed a genome-scan study and demonstrated linkage to chromosome 15q12-q15. Positive LOD scores were obtained with a maximum at the D15S1007 locus (maximum LOD score 3.77, at recombination fraction 0.00). Haplotype analyses supported the location of the disease-causing gene in a 13.8-cM interval between loci D15S1002 and D15S1040.
ISSN:0002-9297
1537-6605
DOI:10.1086/316894