Statistical Genetics of Human Complex Traits

A special issue of Genes (ISSN 2073-4425). This special issue belongs to the section "Human Genomics and Genetic Diseases".

Deadline for manuscript submissions: closed (20 December 2023) | Viewed by 907

Special Issue Editor

Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia
Interests: statistical genetics; GWAS; polygenic prediction; omics integrative analysis; genetic architecture; natural selection

Special Issue Information

Dear Colleagues,

Complex traits, including those of common diseases, are affected by many genetic variants, each explaining a small proportion of phenotypic variance in the population. Over the past decade, genome-wide association studies (GWAS) have successfully identified hundreds of thousands of genetic variants that are associated with a broad range of complex traits and diseases. Although GWAS provide unprecedented opportunities to understand the genetics underpinning complex traits, current challenges lie in how to interpret and apply GWAS discoveries in research and clinical settings. These challenges have motivated the generation of innovative statistical methods and new datasets such as functional genomics and multi-omics data. For example, the “missing heritability” problem in the early stage of GWAS has stimulated the development and application of mixed linear models in large-scale genomic datasets. Moreover, statistical fine-mapping methods incorporating functional genomic information have been developed to identify the causal variants from the non-causals, tagging them by the linkage disequilibrium. More recently, to understand the biological mechanisms through which genetic variants exert their effects on phenotypes, analytical approaches that integrate GWAS data with transcriptomic or epigenomic data have been proposed to detect genes and regulatory elements relevant to these traits. Furthermore, the prediction of individual’s disease risk by polygenic risk score is another exciting application of GWAS data, with great potential in clinical utility. This Special Issue focuses on advances in the development and application of statistical methods for human complex traits.

Dr. Jian Zeng
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Genes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • statistical genetics
  • GWAS
  • complex traits
  • common diseases
  • genetic architecture
  • heritability
  • polygenic risk prediction
  • fine-mapping
  • omics
  • functional genomics

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

17 pages, 1780 KiB  
Article
Statistical Genetic Approaches to Investigate Genotype-by-Environment Interaction: Review and Novel Extension of Models
by Vincent P. Diego, Eron G. Manusov, Marcio Almeida, Sandra Laston, David Ortiz, John Blangero and Sarah Williams-Blangero
Genes 2024, 15(5), 547; https://doi.org/10.3390/genes15050547 - 25 Apr 2024
Viewed by 518
Abstract
Statistical genetic models of genotype-by-environment (G×E) interaction can be divided into two general classes, one on G×E interaction in response to dichotomous environments (e.g., sex, disease-affection status, or presence/absence of an exposure) and the other in response to continuous environments (e.g., physical activity, [...] Read more.
Statistical genetic models of genotype-by-environment (G×E) interaction can be divided into two general classes, one on G×E interaction in response to dichotomous environments (e.g., sex, disease-affection status, or presence/absence of an exposure) and the other in response to continuous environments (e.g., physical activity, nutritional measurements, or continuous socioeconomic measures). Here we develop a novel model to jointly account for dichotomous and continuous environments. We develop the model in terms of a joint genotype-by-sex (for the dichotomous environment) and genotype-by-social determinants of health (SDoH; for the continuous environment). Using this model, we show how a depression variable, as measured by the Beck Depression Inventory-II survey instrument, is not only underlain by genetic effects (as has been reported elsewhere) but is also significantly determined by joint G×Sex and G×SDoH interaction effects. This model has numerous applications leading to potentially transformative research on the genetic and environmental determinants underlying complex diseases. Full article
(This article belongs to the Special Issue Statistical Genetics of Human Complex Traits)
Show Figures

Figure 1

Back to TopTop