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- Worldwide repository of over 136,000 9-locus, over 84,000 17-locus, over 25,000 23-locus haplotypes and 15,000 Y SNP profiles from 917 sampling locations in 128 countries.
www.sciencedirect.com/science/article/pii/S1872497314002749
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What is the Y chromosome haplotype reference database (YHRD)?
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The Y Chromosome Haplotype Reference Database (YHRD) is an open-access, annotated collection of population samples typed for Y chromosomal sequence variants. [1] Two important objectives are pursued: (1) the generation of reliable frequency estimates for Y-STR haplotypes and Y-SNP haplotypes to be used in the quantitative assessment of matches ...
Mar 1, 2015 · We include Y-SNP information as sets of Y-SNP marker states (ancestral/derived) and transcode them to haplogroups according to the phylogenetic “minimal Y tree” [22]. The YHRD currently includes more than 15,000 chromosomes typed both for STR and SNP markers, which can therefore assigned to haplogroups.
- Sascha Willuweit, Lutz Roewer
- 2015
In geographic terms, about 39% of the YHRD samples are from Europe, 32% from Asia, 16% from South America, 6% from North America, 4% from Africa and 2% from Oceania/Australia.
- Sascha Willuweit, Lutz Roewer
- 2015
YHRD considers reduction of the available number of polymorphisms on the Y chromosome to a uniform data string of 11 highly variable Y-STR loci as an efficient way to rapidly screen many world populations and to make their Y chromosome profiles comparable.
The Y Chromosome Haplotype Reference Database (YHRD) now includes 135 national databases which were populated in the past 20 years. The YHRD project started in 1999 with a collection of 3,825 haplotypes typed in 48 populations for up to 13 Y-STRs.
YHRD : Y-Chromosome STR Haplotype Reference Database. Aim & Objectives. Generate reliable Y-STR haplotype frequency estimates for Y-STR haplotypes to be used in the quantitative assessment of matches in forensic and kinship casework.
Mar 1, 2015 · Here, we studied nine Hui populations (Xinjiang, Qinghai, Gansu, Ningxia, Shaanxi, Henan, Shandong, Sichuan, Yunnan) using 157 Y-chromosome single nucleotide polymorphisms (Y-SNPs) and 27 short tandem repeats (Y-STRs) to unravel their genetic substructure and forensic characteristics.