Y-STR

STR rate ranges as of 2008 for 17- STRs

STR site	Mutation Rate (x 10-3)
	LB-96%CI	'rate'	UB-96%CI	Notes
DYS19	1.5	2.4	3.5	Independent duplications
DYS385	1.4	2.1	3.0	31 of 41896
DYS389I	0.95	1.8	3.0	14 of 7862
DYS389II	1.8	2.8	4.2	22 of 7849
DYS390	1.4	2.3	3.5	21 of 9140
DYS391	2.0	3.0	4.5	28 of 9089
DYS392	0.18	0.55	1.3	5 of 9053
DYS393	0.36	0.89	1.8	7 of 7842
DYS437	0.60	1.5	3.1	7 of 4672
DYS438	0.051	0.43	1.5	2 of 4709
DYS439	3.8	5.7	8.4	27 of 4686
DYS448	0.19	1.6	5.7	2 of 1258
DYS456	1.8	4.8	10	6 of 1258
DYS458	2.8	6.4	12	8 of 1258
DYS635	1.6	3.8	7.4	8 of 2131
GATA H4.1	0.71	2.2	5.1	5 of 2294
From table 1. Sanchez-Diz et al 2008. Note some of the N in the 17 STR are quite low in frequency

A Y-STR is a short tandem repeat (STR) on the Y-chromosome. Y-STRs are often used in forensics, paternity, and genealogical DNA testing.

Nomenclature

Y-STRs are assigned names by the HUGO gene nomenclature committee.

Some testing companies have different formats for the way STR markers are written. For example, the marker DYS455 may be written as DYS455, DYS 455, DYS#455, or DYS# 455. The scientific standard accepted by HUGO and NIST is DYS455.^[1]

DYS

DYS is jargon once used in genetic genealogy for a Y-STR. Its origins may be due to the most common first three letters of a Y-chromosome DNA STR (short tandem repeat).

Databases

In genetic genealogy, the following is a list of sponsored databases containing publicly submitted surnames and Y-STR haplotypes:

• YHRD.org
• ySearch

Haplogroup specific data:

• Haplozone: The E-M35 Phylogeny Project (former E3b Project)

References

1. ^ http://www.cstl.nist.gov/biotech/strbase/ystr_fact.htm

See also

• List of Y-STR markers
• Tandem repeat
• Genealogical DNA test

External links

Diagrams

• National Institute of Standards and Technology (NIST) — Y STR Positions along Y Chromosome

Fact sheets

• National Institute of Standards and Technology (NIST) — Summary List of Y Chromosome STR Loci and Available Fact Sheets
• National Institute of Standards and Technology (NIST) — STR Fact Sheets
• dna.reinyday.com — DYS464
• Y-STR markers — Details and statistics

Databases

• dna.reinyday.com - About Public Databases
• yhrd.org — Y-STR Haplotype Reference Database
• ysearch.org — T-DNA database

Tutorials

• Y-STR Marker Types
• Calculation of Genetic Distance
• STR training materials