Primary autosomal recessive microcephaly (MCPH1) maps to chromosome 8p22-pter. |
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| Authors: | A P Jackson D P McHale D A Campbell H Jafri Y Rashid J Mannan G Karbani P Corry M I Levene R F Mueller A F Markham N J Lench C G Woods |
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| Affiliation: | Molecular Medicine Unit, St.James''s University Hospital, Leeds LS9 7TF, United Kingdom. medapj@leeds.ac.uk |
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| Abstract: | Primary (or "true") microcephaly is inherited as an autosomal recessive trait and is thought to be genetically heterogeneous. Using autozygosity mapping, we have identified a genetic locus (MCPH1) for primary microcephaly, at chromosome 8p22-pter, in two consanguineous families of Pakistani origin. Our results indicate that the gene lies within a 13-cM region between the markers D8S1824 and D8S1825 (maximum multipoint LOD score of 8.1 at D8S277). In addition, we have demonstrated the genetic heterogeneity of this condition by analyzing a total of nine consanguineous families with primary microcephaly. |
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