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In human population genetics, Y-Chromosome haplogroups define the major lineages of direct paternal (male) lines back to a shared common ancestor in Africa. Men in the same haplogroup share a set of differences, or markers, on their Y-Chromosome, which distinguish them from men in other haplogroups.
The Y-STR markers in the following list are commonly used in forensic [1] and genealogical DNA testing. DYS454 is the least diverse, and multi-copy marker DYS464 is the most diverse Y-STR marker. The location on the Y-chromosome of numbered Y-STR markers can be roughly given with cytogenetic localization. For example, DYS449 is located at Yp11 ...
In human genetics, a human Y-chromosome DNA haplogroup is a haplogroup defined by specific mutations in the non-recombining portions of DNA on the male-specific Y chromosome (Y-DNA). Individuals within a haplogroup share similar numbers of short tandem repeats (STRs) and single-nucleotide polymorphisms (SNPs). [ 2 ]
Ethnicity estimates are often included with this sort of testing. Y-DNA looks at the Y-chromosome, which is passed down from father to son. Thus, the Y-DNA test can only be taken by males to explore their direct paternal line. mtDNA looks at the mitochondria, which is passed down from mother to child. Thus, the mtDNA test can be taken by both ...
Y-STRs are often used in forensics, paternity, and genealogical DNA testing. Y-STRs are taken specifically from the male Y chromosome. These Y-STRs provide a weaker analysis than autosomal STRs because the Y chromosome is only found in males, which are only passed down by the father, making the Y chromosome in any paternal line practically ...
Y-DNA haplogroups by ethnic group; Y-DNA haplogroups in populations of Europe; Y-DNA haplogroups in populations of the Caucasus; Y-DNA haplogroups in populations of the Near East; Y-DNA haplogroups in populations of North Africa; Y-DNA haplogroups in populations of Sub-Saharan Africa; Y-DNA haplogroups in populations of South Asia