قارن الطرق

	تحليل الخلط السكاني	تحليل كتل عدم الانفصال الارتباطي (LD)
المجال	علم الوراثة	علم الوراثة
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	2009	2002
صاحب الطريقة	David Alexander & Jonathan Novembre	Shaun Gabriel & Eric Lander
النوع	Clustering and inference method	Haplotype analysis method
المصدر التأسيسي	Alexander, D. H., Novembre, J., & Lange, K. (2009). Fast model-based estimation of ancestry in unrelated individuals. Genome Research, 19(9), 1655–1664.	Gabriel, S. B., Schaffner, S. F., Nguyen, H., Moore, J. M., Roy, J., Blumenstiel, B., & Lander, E. S. (2002). The structure of haplotype blocks in the human genome. Science, 296(5576), 2225–2229.
الأسماء البديلة	Population structure inference, Ancestry analysis, ADMIXTURE	Haplotype block analysis, LD mapping, Block structure analysis
ذات صلة	4	5
الملخص	Admixture analysis is a population genetics method that infers population structure and individual ancestry from multilocus genotype data. Originally developed by Pritchard, Stephens, and Donnelly (2000) and refined by Alexander, Novembre, and Lange (2009), admixture analysis reveals how genetic variation is distributed among populations and estimates the ancestry fractions of admixed individuals. This technique is essential for understanding human evolutionary history, detecting population stratification in genetic studies, and inferring individual ancestry.	Linkage disequilibrium (LD) block analysis is a genomic method that partitions the human genome into distinct haplotype blocks—regions of limited recombination where variants are in strong statistical association. First systematically described by Gabriel and colleagues in 2002, this approach reveals the underlying structure of genetic variation and enables efficient genomic studies by reducing the number of variants needed to capture common diversity. LD block analysis forms the foundation of genome-wide association study (GWAS) design and modern population genetics.