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We present clinical, cytogenetic, and linkage data of four DNA probes from the terminal long arm of the X chromosome in ten new families with fragile X syndrome. A prior/posterior method of multipoint linkage analysis is employed to combine these results with published data to refine the linkage map of terminal Xq. Ten possible probe/disease orderings were tested. The order with the greatest posterior probability (0.78) of the five loci is 52a-F9-fragile X gene-DX13-St14, although the order with reversal of the positions of 52a and F9 has a posterior probability 0.15. The mean estimates of the distances between the probes and the fragile X gene are 38 cM and 33 cM for the proximal probes 52a and F9, and 8 cM and 12 cM for the distal probes DX13 and St14. Although the current method of choice in the prenatal diagnosis and carrier detection of the fragile X syndrome remains detailed cytogenetic analysis, consideration is given to the potential role of these DNA probes, both singly and in pairs.
J A Buchanan, and
K E Buckton, and
C M Gosden, and
M S Newton, and
J F Clayton, and
S Christie, and
N Hastie
January 1991,
American journal of medical genetics,
J A Buchanan, and
K E Buckton, and
C M Gosden, and
M S Newton, and
J F Clayton, and
S Christie, and
N Hastie
January 1987,
Journal of medical genetics,
J A Buchanan, and
K E Buckton, and
C M Gosden, and
M S Newton, and
J F Clayton, and
S Christie, and
N Hastie
January 1991,
American journal of medical genetics,
J A Buchanan, and
K E Buckton, and
C M Gosden, and
M S Newton, and
J F Clayton, and
S Christie, and
N Hastie
January 1992,
American journal of medical genetics,
J A Buchanan, and
K E Buckton, and
C M Gosden, and
M S Newton, and
J F Clayton, and
S Christie, and
N Hastie
July 1988,
Human genetics,
J A Buchanan, and
K E Buckton, and
C M Gosden, and
M S Newton, and
J F Clayton, and
S Christie, and
N Hastie
January 1990,
Birth defects original article series,
J A Buchanan, and
K E Buckton, and
C M Gosden, and
M S Newton, and
J F Clayton, and
S Christie, and
N Hastie
October 1986,
Clinical genetics,
J A Buchanan, and
K E Buckton, and
C M Gosden, and
M S Newton, and
J F Clayton, and
S Christie, and
N Hastie
January 1991,
American journal of medical genetics,
J A Buchanan, and
K E Buckton, and
C M Gosden, and
M S Newton, and
J F Clayton, and
S Christie, and
N Hastie
July 1991,
Genomics,
J A Buchanan, and
K E Buckton, and
C M Gosden, and
M S Newton, and
J F Clayton, and
S Christie, and
N Hastie
January 1982,
Revista chilena de pediatria,
