Five independent loci reach genome-wide significance for language/literacy phenotypes including Chinese vocabulary, character and word reading, rapid digit naming, and English lexical decision in Hong Kong Chinese bilingual children¶

Claim · All claims
Evidence · 1 study · associational r? · q2
Currency · newest study 2024 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? In GWAS of 34 reading/language phenotypes in Hong Kong Chinese bilingual children, 5 independent loci reached genome-wide significance (p < 5e-08) after filtering on imputation quality and correlated-SNP support. → Yu-Ping Lin 2024

Evidence¶

Yu-Ping Lin 2024¶

Yu-Ping Lin, Yujia Shi, Ruoyu Zhang, Xiao Xue, Shitao Rao, Liangying Yin, Kelvin Fai Hong Lui, Dora Jue Pan, Urs Maurer, Kwong-Wai Choy, Silvia Paracchini, Catherine McBride & Hon-Cheong So. (2024). A genome-wide association study of Chinese and English language phenotypes in Hong Kong Chinese children. npj Science of Learning. https://doi.org/10.1038/s41539-024-00229-7

q2 · i? · associational · r?

Genome-wide association analysis of 34 literacy/language phenotypes in a Hong Kong sample of bilingual children (total N = 1046 including twins and singletons) identified 5 independent loci; the description quotes the article's own significance criteria: "reached genome-wide (GW) significance (p < 5e-08)". No effect size was printed.

"In SNP-based analysis, a total of 5 independent loci (LD-clumped at r2 threshold 0.01; MAF threshold = 0.05) reached genome-wide (GW) significance (p < 5e-08)"

Discussion¶

Learner Variables¶

• Vocabulary — predictor: learners who differ on it differ in outcomes

Related Claims¶

• Gene-based tests identify associations including KCNC1 with pure-tone phonological composite, GTF3C1 with Chinese vocabulary measures, and CATSPERD with English word reading — a narrower finding that bears on this claim
• Hong Kong sample phenotypes show genetic dependence with GenLang reading traits, with 42 of 170 trait pairs reaching nominal significance and 22 reaching FDR < 0.1, mostly with word reading — related
• The most significant single-variant association is rs6905617 with English Lexical Decision (p = 3.29E-09), located near MANEA and MANEA-AS1 — a narrower finding that bears on this claim
• Top SNPs and genes from prior dyslexia and Chinese reading GWAS show significant overlap with the Hong Kong sample's phenotypes, especially Chinese vocabulary breadth — related
• Transcriptome-wide analyses link genetically predicted expression of DUS3L and HSD3B7 to English literacy phenotypes and SEMA6C to Chinese vocabulary breadth — related
• Polygenic risk scores for educational attainment and cognitive performance show the most consistent associations with language traits, and these associations are stronger for English than Chinese literacy phenotypes — related