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Sci-Hub | The genetics of human fertility. Current Opinion in Psychology, 27, 41–45 | 10.1016/j.copsyc.2018.07.011
very short

Overall, there is a suggestion of two different reproductive strategies proving to be successful in modern Western societies: (1) a strategy associated with socially conservative values, including a high commitment to the bearing of children within marriage; and(2) a strategy associated with antisocial behavior, early sexual experimentation, a variety of sexual partners, low educational attainment, low commitment to marriage, haphazard pregnancies, and indifference to politics. This notion of distinct lifestyles characterized in common by relatively high fertility deserves further empirical and theoretical study.
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march 2019 by nhaliday
Use and Interpretation of LD Score Regression
LD Score regression distinguishes confounding from polygenicity in genome-wide association studies:
- Po-Ru Loh, Nick Patterson, et al.

Both polygenicity (i.e. many small genetic effects) and confounding biases, such as cryptic relatedness and population stratification, can yield inflated distributions of test statistics in genome-wide association studies (GWAS). However, current methods cannot distinguish between inflation from bias and true signal from polygenicity. We have developed an approach that quantifies the contributions of each by examining the relationship between test statistics and linkage disequilibrium (LD). We term this approach LD Score regression. LD Score regression provides an upper bound on the contribution of confounding bias to the observed inflation in test statistics and can be used to estimate a more powerful correction factor than genomic control. We find strong evidence that polygenicity accounts for the majority of test statistic inflation in many GWAS of large sample size.

Supplementary Note:

An atlas of genetic correlations across human diseases
and traits:

Supplementary Note:
ldsc is a command line tool for estimating heritability and genetic correlation from GWAS summary statistics. ldsc also computes LD Scores.
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november 2017 by nhaliday
A combined analysis of genetically correlated traits identifies 107 loci associated with intelligence | bioRxiv
We apply MTAG to three large GWAS: Sniekers et al (2017) on intelligence, Okbay et al. (2016) on Educational attainment, and Hill et al. (2016) on household income. By combining these three samples our functional sample size increased from 78 308 participants to 147 194. We found 107 independent loci associated with intelligence, implicating 233 genes, using both SNP-based and gene-based GWAS. We find evidence that neurogenesis may explain some of the biological differences in intelligence as well as genes expressed in the synapse and those involved in the regulation of the nervous system.


Finally, using an independent sample of 6 844 individuals we were able to predict 7% of intelligence using SNP data alone.
study  bio  preprint  biodet  behavioral-gen  GWAS  genetics  iq  education  compensation  composition-decomposition  🌞  gwern  meta-analysis  genetic-correlation  scaling-up  methodology  correlation  state-of-art  neuro  neuro-nitgrit  dimensionality 
july 2017 by nhaliday
Polygenic transmission disequilibrium confirms that common and rare variation act additively to create risk for autism spectrum disorders : Nature Genetics : Nature Research
Autism spectrum disorder (ASD) risk is influenced by common polygenic and de novo variation. We aimed to clarify the influence of polygenic risk for ASD and to identify subgroups of ASD cases, including those with strongly acting de novo variants, in which polygenic risk is relevant. Using a novel approach called the polygenic transmission disequilibrium test and data from 6,454 families with a child with ASD, we show that polygenic risk for ASD, schizophrenia, and greater educational attainment is over-transmitted to children with ASD. These findings hold independent of proband IQ. We find that polygenic variation contributes additively to risk in ASD cases who carry a strongly acting de novo variant. Lastly, we show that elements of polygenic risk are independent and differ in their relationship with phenotype. These results confirm that the genetic influences on ASD are additive and suggest that they create risk through at least partially distinct etiologic pathways.
study  biodet  behavioral-gen  genetics  population-genetics  QTL  missing-heritability  psychiatry  autism  👽  disease  org:nat  🌞  gwern  pdf  piracy  education  multi  methodology  wiki  reference  psychology  cog-psych  genetic-load  genetic-correlation  sib-study  hypothesis-testing  equilibrium  iq  correlation  intricacy  GWAS  causation  endo-exo  endogenous-exogenous 
july 2017 by nhaliday
A genome-wide polygenic approach to HIV uncovers link to inflammatory bowel disease and identifies potential novel genetic variants | bioRxiv
We further showed that the genetic overlap between HIV acquisition and schizophrenia is likely driven in part by their shared overlap with cannabis use and sexual behavior.
study  bio  preprint  biodet  behavioral-gen  GWAS  genetic-correlation  correlation  trivia  cocktail  disease  sex  sexuality  drugs  psychiatry  genetics 
june 2017 by nhaliday

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