Leber's hereditary optic neuroretinopathy and the X-chromosomal susceptibility factor: no linkage to DXs7.
Leber's hereditary optic neuroretinopathy (LHON) was the first human disease for which mitochondrial inheritance was demonstrated. Analysis of genealogies, however, suggests the existence of an interacting X-linked factor, and linkage to DXS7 was recently described. We tested this location in four LHON families, with DXS7 and two flanking markers, OTC and DXS426. We found recombinations with DXS7 in two families and with DXS426 in one. The two point lod scores to DXS7 were negative with all the allele frequencies for the X-linked factor tested (q = 0.5; 0.35; 0.05).
Abteilung für pädiatrische Genetik, Universität München, BRD.
M R
MR
Carvalho
B
B
Müller
E
E
Rötzer
T
T
Berninger
G
G
Kommerell
A
A
Blankenagel
M L
ML
Savontaus
T
T
Meitinger
B
B
Lorenz
D005260:Female; D008040:Genetic Linkage; D005819:Genetic Markers; D020022:Genetic Predisposition to Disease; D006801:Humans; D008297:Male; D015418:Optic Atrophies, Hereditary / Q000235:genetics*; D010375:Pedigree; D012150:Polymorphism, Restriction Fragment Length; D014960:X Chromosome
D005819:Genetic Markers