Track topics on Twitter Track topics that are important to you
For most human complex diseases and traits, SNPs identified by genome-wide association studies (GWAS) explain only a small fraction of the heritability. Here we report a user-friendly software tool called genome-wide complex trait analysis (GCTA), which was developed based on a method we recently developed to address the "missing heritability" problem. GCTA estimates the variance explained by all the SNPs on a chromosome or on the whole genome for a complex trait rather than testing the association of any particular SNP to the trait. We introduce GCTA's five main functions: data management, estimation of the genetic relationships from SNPs, mixed linear model analysis of variance explained by the SNPs, estimation of the linkage disequilibrium structure, and GWAS simulation. We focus on the function of estimating the variance explained by all the SNPs on the X chromosome and testing the hypotheses of dosage compensation. The GCTA software is a versatile tool to estimate and partition complex trait variation with large GWAS data sets.
Queensland Statistical Genetics Laboratory, Queensland Institute of Medical Research, 300 Herston Road, Brisbane, Queensland 4006, Australia.
This article was published in the following journal.
Name: American journal of human genetics
A computationally efficient tool is required for a genome-wide gene-gene interaction analysis that tests an extremely large number of single-nucleotide polymorphism (SNP) interaction pairs in genome-w...
The objective of this study was to use a genome-wide association (GWAS) approach and pooled DNA strategy to search for new genomic loci associated with complex regional pain syndrome (CRPS).
The familial aggregation indicated the inheritance of cancer risk. Recent genome-wide association studies (GWAS) have identified a number of common single nucleotide polymorphisms (SNPs). Following he...
Mapping quantitative trait loci through the use of linkage disequilibrium (LD) in populations of unrelated individuals provides a valuable approach for dissecting the genetic basis of complex traits i...
Expression of quantitative trait loci (eQTLs) for the genes located in human chromosome 6 were examined. Data on RNA expression in lymphoblastoid cells of 373 unrelated Europeans were used to identify...
Studies have shown that there is a significant association between serum bilirubin concentrations and risk of coronary artery disease (CAD). So far, no linkage analysis in humans between ...
The aim of this study was to elucidate genetic susceptibility of patients with nontuberculous mycobacterial lung disease using genome-wide association study.
This prospective nation-wide (France) study aims to search for susceptibility genes in MVP using a genome wide analysis and comparing results obtained in 1000 patients with MVP and 1000 n...
A French University team (M. Jeanne, MD, and M. LOGIER, Ph D) have developed a pain assessment tool based on the analysis of the variability heart rate which evaluates the Analgesia Nocice...
Persons with schizophrenia experience imaginary voices, visions and disorganized thoughts, and are handicapped when it comes to social life, which is detrimental to the affected individual...
Locations, on the GENOME, of GENES or other genetic elements that encode or control the expression of a quantitative trait (QUANTITATIVE TRAIT, HERITABLE).
An analysis comparing the allele frequencies of all available (or a whole GENOME representative set of) polymorphic markers in unrelated patients with a specific symptom or disease condition, and those of healthy controls to identify markers associated with a specific disease or condition.
A coordinated effort of researchers to map (CHROMOSOME MAPPING) and sequence (SEQUENCE ANALYSIS, DNA) the human GENOME.
The analysis of a sequence such as a region of a chromosome, a haplotype, a gene, or an allele for its involvement in controlling the phenotype of a specific trait, metabolic pathway, or disease.
Component of the NATIONAL INSTITUTES OF HEALTH. It conducts and supports research into the mapping of the human genome and other organism genomes. The National Center for Human Genome Research was established in 1989 and re-named the National Human Genome Research Institute in 1997.
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...