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. 1989 Jan;44(1):100-6.

Selection against lethal alleles in females heterozygous for incontinentia pigmenti

B R Migeon  1 , J Axelman, S Jan de Beur, D Valle, G A Mitchell, K N Rosenbaum
Affiliations

Selection against lethal alleles in females heterozygous for incontinentia pigmenti

B R Migeon et al. Am J Hum Genet. 1989 Jan.

Abstract

Studies of five heterozygous females from three kindreds segregating incontinentia pigmenti indicate that cells expressing the mutation have been eliminated from skin fibroblast cultures and in varying degrees from hematopoietic tissues. Clonal analysis was carried out using G6PD variants and methylation patterns at the HPRT locus. Our results confirm X linkage in these families and suggest that selection against cells expressing mutations that are lethal to males in utero may help ameliorate the deleterious phenotype in carrier females.

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