A locus on chromosome 9p confers susceptibility to ALS and frontotemporal dementia.

Research output: Contribution to journalArticle


Objective: To perform genetic linkage analysis in a family affected with ALS and frontotemporal dementia (FTD). Methods: The authors performed a genome-wide linkage analysis of a four-generation, 50-member Scandinavian family in which five individuals were diagnosed with ALS and nine with FTD. Linkage calculations assuming autosomal dominant inheritance of a single neurodegenerative disease manifesting as either ALS or FTD with age-dependent penetrance were performed. Further analyses for ALS alone and FTD alone were performed. A parametric logarithm of odds (lod) score of 2.0 or greater was required for further study of a potential locus and crossover (haplotype) analysis. Results: A new ALS-FTD locus was identified between markers D9s1870 and D9s1791 on human chromosome 9p21.3-p13.3. A maximum multipoint lod score of 3.00 was obtained between markers D9s1121 and D9s2154. Crossover analysis indicates this region covers approximately 21.8 cM, or 14Mb. Conclusions: A locus on chromosome 9p21.3-p13.3 is linked to ALS-FTD.


  • M Morita
  • A Al-Chalabi
  • P M Andersen
  • B Hosler
  • P Sapp
  • Elisabet Englund
  • J E Mitchell
  • J J Habgood
  • J de Belleroche
  • J Xi
  • W Jongjaroenprasert
  • H R Horvitz
  • L-G Gunnarsson
  • R H Brown
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Neurology
Original languageEnglish
Pages (from-to)839-844
Issue number6
Publication statusPublished - 2006
Publication categoryResearch

Bibliographic note

The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Pathology, (Lund) (013030000)