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Identification of Hereditary Symmetrical Dyschromatosis Susceptibility Locus by Genome-wide Scan

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF DERMATOLOGY
Issue:
12
DOI:
10.3760/j.issn:0412-4030.2003.12.001
Key Word:
染色体图;连锁(遗传学);单元型;遗传性对称性色素异常症

Abstract: 目的确定遗传性对称性色素异常症易感区域.方法用覆盖全基因组22条常染色体的402个微卫星标记对2个遗传性对称性色素异常症大家系进行全基因组扫描,利用Linkage软件(5.10Version)和Cyrillic软件(2.01 Version)进行连锁和单倍型分析.结果常染色体显性遗传模式,外显率为100%时,在1号染色体上的微卫星标记D1S2343处获得最大累积LOD积分为8.85(重组率θ=0.00),其相邻2个标记D1S2696和D1S2345处的最大累积LOD积分分别为4.60(重组率θ=0.10)和8.54(重组率θ=0.00).单倍型分析将易感区域缩小至D1S2696和D1S2635之间11.6 cM处.结论染色体1q11-1q21区域存在遗传性对称性色素异常症易感基因.

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