Edery P, Manach Y, Le Merrer M, Till M, Vignal A, Lyonnet S, Munnich A
Unité de Recherches sur les Handicaps Génétiques de l'Enfant INSERM U-393, Hôpital des Enfants Malades, Paris, France.
Am J Med Genet. 1994 Aug 15;52(2):174-7. doi: 10.1002/ajmg.1320520210.
The Treacher Collins-Franceschetti syndrome (TCOF) or mandibulofacial dysostosis (MFD) is an autosomal dominant disorder characterized by craniofacial abnormalities and hearing loss. A refined genetic linkage map of the TCOF locus was established in 8 independent families, using 12 microsatellite DNA markers of the distal 5q. Positive lod score values were obtained for all markers with a maximum at the D5S413 locus (Zmax = 3.79 at theta = 0%). Multipoint linkage analysis and haplotype analysis supported the location of the gene between loci D5S434 and D5S412. These results are consistent with previous linkage analyses [Dixon et al.: Am J Hum Genet 49:17-22, 1991, Am J Hum Genet 52:907-914, 1993; Jabs et al.: Genomics 11:193-198, 1991, Genomics 18:7-13, 1993] and provide further evidence of genetic homogeneity in this syndrome.
特雷彻·柯林斯-弗朗西谢蒂综合征(TCOF)或下颌面骨发育不全(MFD)是一种常染色体显性疾病,其特征为颅面异常和听力丧失。利用5号染色体长臂远端的12个微卫星DNA标记,在8个独立家系中建立了TCOF基因座的精细遗传连锁图谱。所有标记均获得了阳性连锁值,在D5S413基因座处达到最大值(在θ=0%时,Zmax=3.79)。多点连锁分析和单倍型分析支持该基因位于D5S434和D5S412基因座之间。这些结果与先前的连锁分析结果一致[迪克森等人:《美国人类遗传学杂志》49:17 - 22,1991年,《美国人类遗传学杂志》52:907 - 914,1993年;贾布斯等人:《基因组学》11:193 - 198,1991年,《基因组学》18:7 - 13,1993年],并为该综合征的遗传同质性提供了进一步证据。