Abstract
More than 100 loci have been identified for age at menarche by genome-wide association studies; however, collectively these explain only ∼ 3% of the trait variance. Here we test two overlooked sources of variation in 192,974 European ancestry women: low-frequency protein-coding variants and X-chromosome variants. Five missense/nonsense variants (in ALMS1/LAMB2/TNRC6A/TACR3/PRKAG1) are associated with age at menarche (minor allele frequencies 0.08-4.6%; effect sizes 0.08-1.25 years per allele; P<5 × 10-8). In addition, we identify common X-chromosome loci at IGSF1 (rs762080, P=9.4 × 10-13) and FAAH2 (rs5914101, P=4.9 × 10-10). Highlighted genes implicate cellular energy homeostasis, post-transcriptional gene silencing and fatty-acid amide signalling. A frequently reported mutation in TACR3 for idiopathic hypogonatrophic hypogonadism (p.W275X) is associated with 1.25-year-later menarche (P=2.8 × 10-11), illustrating the utility of population studies to estimate the penetrance of reportedly pathogenic mutations. Collectively, these novel variants explain ∼0.5% variance, indicating that these overlooked sources of variation do not substantially explain the 'missing heritability' of this complex trait.
Original language | English |
---|---|
Article number | 7756 |
Journal | Nature Communications |
Volume | 6 |
DOIs | |
State | Published - Aug 4 2015 |
Bibliographical note
Publisher Copyright:© 2015 Macmillan Publishers Limited. All rights reserved.
Funding
Funders | Funder number |
---|---|
Medical Research Council-São Paulo Research Foundation | MC_UU_12015/1, MC_UP_A100_1003, MR/K026992/1, MC_PC_U127561128, MC_UU_12015/5, MC_UU_12015/2, MC_U106179471 |
Medical Research Council-São Paulo Research Foundation | |
National Institute on Aging | ZIAAG000647, R21AG032598, R01AG029451, ZIAAG000675 |
National Institute on Aging | |
National Childhood Cancer Registry – National Cancer Institute | P30CA015704, UM1CA182913 |
National Childhood Cancer Registry – National Cancer Institute | |
Australian National Health and Medical Research Council | 454382 |
Australian National Health and Medical Research Council | |
European Commission | 305280 |
European Commission | |
National Center for Advancing Translational Sciences (NCATS) | UL1TR001108, UL1TR002529 |
National Center for Advancing Translational Sciences (NCATS) | |
Horizon 2020 Framework Programme | 692065 |
Horizon 2020 Framework Programme |
ASJC Scopus subject areas
- General Chemistry
- General Biochemistry, Genetics and Molecular Biology
- General Physics and Astronomy