قارن الطرق

	دراسة الارتباط على مستوى الجينوم (GWAS)	استدعاء المتغيرات
المجال	المعلوماتية الحيوية	المعلوماتية الحيوية
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	2005–2007	2009–2010 (modern high-throughput era)
صاحب الطريقة	Klein et al. (age-related macular degeneration GWAS, 2005); landmark scale: Wellcome Trust Case Control Consortium (2007)	Li et al. (SAMtools/bcftools, 2009); McKenna et al. (GATK, 2010)
النوع	Observational genomic association study	Computational genomics pipeline
المصدر التأسيسي	Wellcome Trust Case Control Consortium. (2007). Genome-wide association study of 14,000 cases of seven common diseases and 3,000 shared controls. Nature, 447(7145), 661–678.	McKenna, A., Hanna, M., Banks, E., Sivachenko, A., Cibulskis, K., Kernytsky, A., ... & DePristo, M. A. (2010). The Genome Analysis Toolkit: A MapReduce framework for analyzing next-generation DNA sequencing data. Genome Research, 20(9), 1297–1303.
الأسماء البديلة	GWAS, genome-wide association analysis, whole-genome association study, WGAS	SNP calling, genotyping from sequencing, mutation detection, variant detection
ذات صلة	6	6
الملخص	A genome-wide association study (GWAS) systematically tests hundreds of thousands to millions of single-nucleotide polymorphisms (SNPs) across the human genome for statistical association with a trait or disease. By comparing allele frequencies between cases and controls — or by regressing SNP genotypes on a quantitative phenotype — GWAS identifies genomic loci that harbor common genetic variants contributing to complex traits. Since its large-scale debut in 2007, GWAS has catalogued thousands of robust disease–variant associations across virtually every common human condition.	Variant calling is the computational process of identifying positions in a sequenced genome that differ from a reference sequence — including single nucleotide polymorphisms (SNPs), small insertions and deletions (indels), and structural variants. It transforms aligned sequencing reads into an interpretable catalogue of genetic differences, forming the foundation for population genetics, disease-gene discovery, and clinical genomics applications.