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Niall of the Nine Hostages

In 2006, a group of researchers explored the frequency of haplogroup R-M269 and the Western Atlantic Modal Haplotype (WAMH) in Ireland. They showed that haplogroup R-M269 accounts for 85.4% of the lineages in Ireland, but that a distinctive haplotype is found there at a frequency of 8.2 to 21.5%. The authors attribute this Y-chromosome signature to Niall of the Nine Hostages, a medieval warlord.

Niall of the Nine Hostages received his name from the taking of hostages as a strategy for playing mental havoc upon his opponent chieftains. He is known in folklore as a raider of the British and French coasts. Supposedly slain in the English Channel or in Scotland, his descendants were the most powerful rulers of Ireland until the 11th century.

Niall’s descendants were called the Uí Néill. It is their prolific production of progeny to which the journal article’s authors attribute the modern frequency of Niall’s haplotype. The authors state:

Gaelic society placed great emphasis on family relationships organized around a strongly patrilineal system (derbhfine) in which land and title could be handed down to successors chosen from within a kin group of malelineage relatives. This wider inheritance cohort resulted in a decreased likelihood of dissociation of lineage from power (O’Croinin 1995). Also, whereas medieval Ireland was Christian, earlier marriage customs persisted and allowed divorce and concubinage.

DNA Day Sale

Family Tree DNA is holding a DNA Day Sale from April 18h to April 25th. The Y-37 DNA test is being offered for $79 plus postage and the Y-111 DNA test for $199 plus postage. Please be advised that these are the only tests applicable to our project. Click here for a link to a page where you can order either of these tests through our project which will guarantee your results will be included in our project.


How many generations does a Y-chromosome DNA test trace?

Y-chromosome DNA (Y-DNA) tests trace both recent and distant generations. The number of generations traced by a Y-chromosome DNA test depends on the type of test taken, short tandem repeat (STR) or single nucleotide polymorphism (SNP). STR such as the Y-37, Y-67 and Y-111 tests are able to trace a male lineage within genealogical times and into historic times. On the other hand, Y-DNA SNP tests like the Big Y tests trace both ancient anthropological migrations and more recent prehistoric movements. A Y-DNA SNP test also identifies the haplogroup, which represents your deep ancestral origins (tens of thousands of years ago).

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