Convergent genetic linkage and associations to language, speech and reading measures in families of probands with Specific Language Impairment

Mabel L. Rice, Shelley D Smith, Javier Gayán

Research output: Contribution to journalArticle

84 Scopus citations

Abstract

We analyzed genetic linkage and association of measures of language, speech and reading phenotypes to candidate regions in a single set of families ascertained for SLI. Sib-pair and family-based analyses were carried out for candidate gene loci for Reading Disability (RD) on chromosomes 1p36, 3p12-q13, 6p22, and 15q21, and the speech-language candidate region on 7q31 in a sample of 322 participants ascertained for Specific Language Impairment (SLI). Replication or suggestive replication of linkage was obtained in all of these regions, but the evidence suggests that the genetic influences may not be identical for the three domains. In particular, linkage analysis replicated the influence of genes on chromosome 6p for all three domains, but association analysis indicated that only one of the candidate genes for reading disability, KIAA0319, had a strong effect on language phenotypes. The findings are consistent with a multiple gene model of the comorbidity between language impairments and reading disability and have implications for neurocognitive developmental models and maturational processes.

Original languageEnglish (US)
Pages (from-to)264-282
Number of pages19
JournalJournal of Neurodevelopmental Disorders
Volume1
Issue number4
DOIs
StatePublished - Dec 1 2009

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Keywords

  • Gene associations
  • Gene linkage
  • Language
  • Language impairments
  • Reading
  • Specific language impairment
  • Speech phenotypes

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Pathology and Forensic Medicine
  • Clinical Neurology
  • Cognitive Neuroscience

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