MacLennan DNA Project - Results

Y-DNA Results:

Only males can test Y-DNA because it is the gene that makes a male a male. It is passed directly from father to son. Haplogroups are DNA signatures that are used to look at migrations of man. A resource on this topic is Spencer Wells, Deep Ancestry.

To learn more about the haplogroups and to see research and graphics of the Y-DNA tree, go to  Additional information can be found by searching the internet for the haplogroup you are interested in. Be sure to specify Y-DNA Haplogroup.

The test kits have been sorted into their respective haplogroups. Those haplogroups listed in red are estimated by FTDNA. Those listed in green have been SNP tested to confirm the haplotype. More people are doing SNP tests because it can further refine what part of the haplogroup they come from. This is particularly true in Haplogroups E, G, I, J, and R. A few people do not have assigned haplogroups because their haplotype numbers are somewhat unusual. Only a SNP test can confirm the haplogroup when a haplotype (set of scores shown in DYS Values) is rare. When this happens, FTDNA performs a free “backbone” test to confirm the haplogroup.

• Y-DNA Haplogroup R1b is the most prolific haplogroup in Europe and its frequency changes in a cline from west (where it reaches a saturation point of almost 100% in areas of Western Ireland) to east (where it becomes uncommon in parts of Eastern Europe and virtually disappears beyond the Middle East). The Dalriada DNA signature was first identified by Mark MacDonald of Clan Donald. A number of clans have a variant of this DNA signature. This group is descended from the genetic family of Erc, the king of the Irish Dal Riata in Antrim (Ulster) until 474. His sons Fergus Mor, Angus, and Loarn established the Scottish kingdom of Dalriada in 470. In the MS of 1467 MacLennans were mentioned as one of the ten clans claiming descent from the Cinel (Clan) Lorn through Cormac mac Aibertach.

mtDNA Results:

mtDNA test kits are arranged by mtdna Haplogroups. mtDNA is passed from the female to all of her children, so both females and males have mtDNA, but males cannot pass it to succeeding generations. mtDNA is traced along the straight female line which changes surnames with every generation. It is extremely unusual to find mtDNA matches even if the person has tested both HVR1 and HVR2 since with both tested the match can range back 700 years. mtDNA Haplogroups with the same name as Y-DNA Haplogroups have no relationship with each other. An example is that mtDNA Haplogroup K has a different history from Y-DNA Haplogroup K. mtDNA Haplogroups show the deep ancestry of the tester and are described in Spencer Wells, Deep Ancestry. Descriptions are also available on the tester's personal page under mtDNA - Results. Additional information can be found by searching the internet for the haplogroup you are interested in. Be sure to specify mtDNA Haplogroup.

• mtDNA haplogroup H (also known as Helena) comprises 40 to 60 % of the mtDNA gene pool in Western Europe and as such is considered the most successful of the mtDNA haplogroups in reproducing itself. It also comprises about 20 % of southwest Asian lineages, 15 % of central Asian lineages and 5 % of northern Asian lineages.

•mtDNA Haplogroup J (also known as Jasmine) has a very wide distribution, being common in eastern and northern Europe, and is present as far east as the Indus Valley bordering Indian and Pakistan and as far south as the Arabian peninsula. mtDNA haplogroup J is largely considered one of the main genetic signatures of the Neolithic expansion and is associated with the spread of agriculture.

•mtDNA Haplogroup T began about 40,000 years ago and is present as far east asthe Indus Valley and as far south as the Arabian Peninsula.  It is also common in eastern and northeastern Europe and is considered one of the genetic signatures of the Neolithic expansion.