Identification of susceptibility loci for nonsyndromic cleft lip with or without cleft palate in a two stage genome scan of affected sib-pairs
Identification of susceptibility loci for nonsyndromic cleft lip with or without cleft palate in a two stage genome scan of affected sib-pairs
复制标题
在受影响同胞对的两阶段基因组扫描中鉴定伴有或不伴有腭裂的非综合征性唇裂的易感位点
DOI:
10.1007/s004390000239
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发表时间:
2000
期刊:
影响因子:
5.3
通讯作者:
S. Malcolm
中科院分区:
文献类型:
--
作者:
N. Prescott;M. Lees;R. Winter;S. Malcolm
Abstract. Nonsyndromic cleft lip with or without cleft palate (CL/P) is a complex disorder of multigenic origin involving between two and ten loci. Linkage and association studies of CL/P have implicated a number of candidate genes and regions but have often proved difficult to replicate. Here, we report the findings from a two-stage genome-wide scan of 92 affected sib-pairs to identify susceptibility loci to CL/P. An initial set of 400 microsatellite markers was used, with an average spacing of 10 cM throughout the genome. Eleven regions on eight chromosomes were found to have a P-value smaller than 0.05. These eight chromosomes were then further mapped with a second set of markers to increase the average map density to 5 cM. In seven out of eleven areas densely mapped, significance was markedly increased by decreasing the marker interval. Excessive allele sharing was found at 1p (NPL=2.35, P=0.009, MLS=1.51), 2p (NPL=1.77, P=0.04, MLS=0.66), 6p (NPL=2.35, P=0.009, MLS=1.34), 8q (NPL=2.15, P=0.015, MLS=1.51) 11cen (NPL=2.70, P=0.003, MLS=2.10), 12q (NPL=2.08, P=0.02, MLS=1.5), 16p (NPL=2.1, P=0.018, MLS=0.97) and Xcen-q (NPL=2.40, P=0.008, MLS=2.68). Although none reached the level required for significant susceptibility loci, two of these areas have previously been implicated in CL/P, viz. 2p13, an area harbouring the TGFA gene, and 6p23–24. We also demonstrate highly suggestive linkage to a susceptibility locus for nonsyndromic clefting on the X chromosome. Further studies are currently underway to replicate these findings in a larger cohort of affected sib-pairs.
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影响因子:
9.8
作者:
Hecht,JT;Yang,P;Michels,VV;Buetow,KH
通讯作者:
Buetow,KH
影响因子:
9.8
作者:
L. Kruglyak;E. Lander
通讯作者:
L. Kruglyak;E. Lander
DOI:
10.1597/1545-1569_1997_034_0001_sotcgt_2.3.co_2
发表时间:
1997
期刊:
The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association
影响因子:
--
作者:
Lidral,AC;Murray,JC;Buetow,KH;Basart,AM;Schearer,H;Shiang,R;Naval,A;Layda,E;Magee,K;Magee,W
通讯作者:
Magee,W
影响因子:
9.8
作者:
Mitchell,LE;Risch,N
通讯作者:
Risch,N
影响因子:
9.8
作者:
Ardinger,HH;Buetow,KH;Bell,GI;Bardach,J;VanDemark,DR;Murray,JC
通讯作者:
Murray,JC