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A genomewide scan identifies two novel loci involved in specific language impairment.
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In: Symplectic Elements at Oxford ; Europe PubMed Central ; PubMed (http://www.ncbi.nlm.nih.gov/pubmed/) ; Web of Science (Lite) (http://apps.webofknowledge.com/summary.do) ; Scopus (http://www.scopus.com/home.url) ; ORA review team (2002)
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The role of genes in the etiology of specific language impairment.
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In: Symplectic Elements at Oxford ; Europe PubMed Central ; PubMed (http://www.ncbi.nlm.nih.gov/pubmed/) ; Web of Science (Lite) (http://apps.webofknowledge.com/summary.do) ; Scopus (http://www.scopus.com/home.url) ; CrossRef (2002)
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Independent genome-wide scans identify a chromosome 18 quantitative-trait locus influencing dyslexia.
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Fisher, SE; Francks, C; Marlow, AJ; MacPhie, IL; Newbury, DF; Cardon, LR; Ishikawa-Brush, Y; Richardson, AJ; Talcott, JB; Gayán, J; Olson, RK; Pennington, BF; Smith, SD; DeFries, JC; Stein, JF; Monaco, AP
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In: Symplectic Elements at Oxford ; Europe PubMed Central ; PubMed (http://www.ncbi.nlm.nih.gov/pubmed/) ; Web of Science (Lite) (http://apps.webofknowledge.com/summary.do) ; Scopus (http://www.scopus.com/home.url) ; CrossRef (2002)
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Abstract:
Developmental dyslexia is defined as a specific and significant impairment in reading ability that cannot be explained by deficits in intelligence, learning opportunity, motivation or sensory acuity. It is one of the most frequently diagnosed disorders in childhood, representing a major educational and social problem. It is well established that dyslexia is a significantly heritable trait with a neurobiological basis. The etiological mechanisms remain elusive, however, despite being the focus of intensive multidisciplinary research. All attempts to map quantitative-trait loci (QTLs) influencing dyslexia susceptibility have targeted specific chromosomal regions, so that inferences regarding genetic etiology have been made on the basis of very limited information. Here we present the first two complete QTL-based genome-wide scans for this trait, in large samples of families from the United Kingdom and United States. Using single-point analysis, linkage to marker D18S53 was independently identified as being one of the most significant results of the genome in each scan (P< or =0.0004 for single word-reading ability in each family sample). Multipoint analysis gave increased evidence of 18p11.2 linkage for single-word reading, yielding top empirical P values of 0.00001 (UK) and 0.0004 (US). Measures related to phonological and orthographic processing also showed linkage at this locus. We replicated linkage to 18p11.2 in a third independent sample of families (from the UK), in which the strongest evidence came from a phoneme-awareness measure (most significant P value=0.00004). A combined analysis of all UK families confirmed that this newly discovered 18p QTL is probably a general risk factor for dyslexia, influencing several reading-related processes. This is the first report of QTL-based genome-wide scanning for a human cognitive trait.
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Keyword:
Child; Chromosome Mapping; Chromosomes; Diseases in Twins; Dyslexia; Female; Genetic Heterogeneity; Genetic Linkage; Genetic Markers; Genotype; Great Britain; Heritable; Human; Humans; Lod Score; Male; Pair 18; Pair 6; Psychological Tests; Quantitative Trait; United States
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URL: https://doi.org/10.1038/ng792
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84 |
A Study of the Genetic and Environmental Etiology of Stuttering in a Selected Twin Sample
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85 |
Genetic and environmental origins of verbal and performance components of cognitive delay in 2-year-olds.
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In: Symplectic Elements at Oxford ; Europe PubMed Central ; PubMed (http://www.ncbi.nlm.nih.gov/pubmed/) ; Web of Science (Lite) (http://apps.webofknowledge.com/summary.do) ; ORA review team (1999)
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A ballad of the Civil War [book review]
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In: Farnsworth Juvenile Literature Library, Harold B. Lee Library, Brigham Young University ; Harold B. Lee Library, Brigham Young University (1998)
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88 |
"Twin language": a risk factor for language impairment?
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In: Symplectic Elements at Oxford ; Europe PubMed Central ; PubMed (http://www.ncbi.nlm.nih.gov/pubmed/) (1998)
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The relationship between multiple birth children's early phonological skills and later literacy
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The Relationship Between Multiple Birth Children's Early Phonological Skills and Later Literacy
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91 |
Differential genetic etiology of reading disability as a function of mathematics performance
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92 |
A Comparison of the Vocabulary Needs of Speaking and Nonspeaking Twins
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In: Dissertations and Theses (1991)
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The application of nonlinear phonological theory to intervention with phonologically delayed twins
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A study of language development in a set of bilingual, biracial, identical twins ; Language development in a set of bilingual, biracial identical twins.
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In: Virtual Press (1985)
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High School and Beyond, 1980: A Longitudinal Survey of Students in the United States ... : Archival Version ...
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High School and Beyond, 1980: A Longitudinal Survey of Students in the United States ... : Version 2 ...
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Genetic and Environmental Overlap Between Chinese and English Reading-Related Skills in Chinese Children
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In: http://psycnet.apa.org/psycarticles/2014-38569-001.pdf%26productCode=pa
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Hearing versus Seeing Identical Twins
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In: http://www.comp.nus.edu.sg/~leowwk/papers/caip2013-twin.pdf
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Genetic influence on literacy constructs in kindergarten and first grade: evidence from a diverse twin sample.
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