Unlike all of the other chromosomes, the Y-Chromosome is unique because it is passed down relatively unchanged along the male lineage and thus holds valuable information about a male’s ancestry.
Y-DNA STR markers mutate at a rate of approximately one mutation every 20 generations. The relatively rapid mutation rate of STR markers compared to the slow mutation rate of SNP markers makes STR markers a useful tool for tracing recent ancestry.
Your Y-DNA haplotype is the specific set of results obtained after testing a set of STR markers on your Y-DNA.
The Y-DNA Test examines several different STR Marker Types.
Learn how to compare Y-DNA markers between 2 different individuals.
MRCA stands for “Most Recent Common Ancestor”. When comparing two individuals, the MRCA is the most recent ancestor from which the two individuals descended.
A number of STR markers can be tested on the Y-DNA. The more markers that are tested, the more discriminating the matches when comparing to other individuals.
People whose ancestors are from the western coast of Europe often share in common a small group of Y-Chromosome STR markers. The group of Y-Chromosome markers which are frequently found in western Europe is called the Atlantic Modal Haploytpe (AMH).
Y-DNA STR markers available at Genebase and the corresponding motifs used for allele designation in Version 3.5.
The Y-DNA SNP Haplogroup Backbone Test Panel contains 19 SNP markers throughout the Y-DNA. These 19 SNP markers are the defining markers for an individual’s Y-DNA haplogroup.
It's the dominant group of Europe, playing one of the largest roles in shaping modern day European populations.
DNA Haplogroup E is the most prominent group for individuals of African descent.
Y-DNA Haplogroup J has strong Middle Eastern roots and has played a large part in shaping populations throughout Europe.
With strong traces in Northern Europe, this group has made a great impact in Europe, even playing a large role in Viking ancestry.
The majority of Y-DNA haplogroup L can be found within the Indian subcontinent, accounting for a large proportion of Indian Y-chromosomes.
Learn how Y-DNA Haplogroup G helped shape present day Middle Eastern societies and how it plays a significant role in the peopling of modern day India.
Y-DNA Haplogroup Q is widespread at low frequencies throughout the Middle East, Asia and Siberia, and at high frequencies in the Americas.
Haplogroup O, defined by SNP marker M175, is thought to have appeared in East Asia approximately 35,000 years ago. Today, Haplogroup O can be detected across Asia and Oceania.
Our discussion will cover human history that dates back more than 65,000 years (65kya) and encompasses a large number of major empires and events in Asian history.
The eras that shaped male Asian Ancestry following the initial settlements of territories in East Asia were driven by rapid population expansions in the South and migrations to Oceania. In the North, a nomadic lifestyle resulted in probably two separate migrations into North America through the Beringia land bridge. What features characterized the Asian populations participating in these migrations?
There have been many relatively recent migration events that have created the present Y-chromosome landscape across East Asia. Some of these episodes have strong correlations to the spread of agricultural practices while others can be linked to historical conquests and empire-building and both may have been the impetus in the spread of languages. The most notable of the recent colonizations is the creation of the Mongol Empire by Genghis Khan.
DYS464 is an unique Y-DNA STR marker which is known to have 4 to 7 alleles (a to d for 4 or a to g for 7).