Uploaded September 2025 | Updated September 2026, 2 weeks ago
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Differences Between Irish & English DNA…
Chapters:
0:00 Intro
0:15 Ancient DNA Differences & Lactose Tolerance
1:58 Romans, Anglo-Saxons & Vikings
5:19 DNA Haplogroups & Royal Lineages
9:47 Disease Rates & Blood Types
What are the DNA differences and similarities between Ireland and England, and how different are they? And how has this influenced factors like blood types, disease rates, lactose tolerance and haplogroups in the 2 peoples, as well as royal lineages? Well the first DNA difference between the Irish and English comes from their ancient DNA. As I’ve noted in previous videos, the foundational DNA of most Europeans is a mixture of 3 main sources: Western Hunter Gatherers (WHG), Early European Farmers (EEF) and Steppe Ancestry during the Bronze Age. Yet the Irish and English have different rates of these 3 sources.
Sources:
Irving-Pease, E.K., Refoyo-Martínez, A., Barrie, W. et al. The selection landscape and genetic legacy of ancient Eurasians. Nature 625, 312–320 (2024). doi.org/10.1038/s41586-023-06705-1
Gilbert, E., O’Reilly, S., Merrigan, M. et al. The Irish DNA Atlas: Revealing Fine-Scale Population Structure and History within Ireland. Sci Rep 7, 17199 (2017). doi.org/10.1038/s41598-017-17124-4
O'Dushlaine, C., Morris, D., Moskvina, V. et al. Population structure and genome-wide patterns of variation in Ireland and Britain. Eur J Hum Genet 18, 1248–1254 (2010). doi.org/10.1038/ejhg.2010.87
New Study Examines Genetic Structure of British Population | Sci.News
L.M. Cassidy, et al. Neolithic and Bronze Age migration to Ireland and establishment of the insular Atlantic genome, Proc. Natl. Acad. Sci. U.S.A. 113 (2) 368-373, doi.org/10.1073/pnas.1518445113 (2016).
FamilyTreeDNA Discover - Y-DNA Haplogroup R-Z381
Gretzinger, J., Sayer, D., Justeau, P. et al. The Anglo-Saxon migration and the formation of the early English gene pool. Nature 610, 112–119 (2022). doi.org/10.1038/s41586-022-05247-2
FamilyTreeDNA Discover - Y-DNA Haplogroup R-M222
Leslie, S., Winney, B., Hellenthal, G. et al. The fine-scale genetic structure of the British population. Nature 519, 309–314 (2015). doi.org/10.1038/nature14230
FamilyTreeDNA Discover - Y-DNA Haplogroup R-DC782
FamilyTreeDNA Discover - Y-DNA Haplogroup R-L226
What is Cystic Fibrosis | Cystic Fibrosis
FamilyTreeDNA Discover - Y-DNA Haplogroup R-DF98
Gilbert, E., O’Reilly, S., Merrigan, M. et al. The Irish DNA Atlas: Revealing Fine-Scale Population Structure and History within Ireland. Sci Rep 7, 17199 (2017). doi.org/10.1038/s41598-017-17124-4
FamilyTreeDNA Discover - Y-DNA Haplogroup R-Z381
Haplogroup R-L21 - Wikipedia
FamilyTreeDNA Discover - Y-DNA Haplogroup R-U106
Low Genetic Impact of the Roman Occupation of Britain in Rural Communities | Molecular Biology and Evolution | Oxford Academic
Irish Heart Ireland has highest rate of Haemochromatosis in the world - Irish Heart
Milk fueled Bronze Age expansion of ‘eastern cowboys’ into Europe | Science | AAAS
Irish ancestry – English ancestry – Irish DNA – English DNA
Creative Commons Imagery:
Nephron File:Hemosiderosis high mag.jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 3.0 Unported license. Deed - Attribution-ShareAlike 3.0 Unported - Creative Commons
Wojciech Pędzich, Robert Molyneaux File:Yamnaya phenotype, Reconstruction, male, grave Novooleksiivka; Ukraine.png - Wikimedia Commons Creative Commons Attribution-Share Alike 4.0 International license. Deed - Attribution-ShareAlike 4.0 International - Creative Commons
Matteo De Stefano/MUSE File:Homo sapiens - Neolithic - reconstruction - MUSE.jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 3.0 Unported license. Deed - Attribution-ShareAlike 3.0 Unported - Creative Commons
Gernot Keller File:2008-05-17-SuttonHoo (cropped).jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 2.5 Generic license. Deed - Attribution-ShareAlike 2.5 Generic - Creative Commons
SKIBLY101 File:DF13 EUROPE.png - Wikimedia Commons Creative Commons Attribution-Share Alike 4.0 International license. Deed - Attribution-ShareAlike 4.0 International - Creative Commons
Hel-hama File:England 878.svg - Wikimedia Commons Creative Commons Attribution-Share Alike 3.0 Unported license. Deed - Attribution-ShareAlike 3.0 Unported - Creative Commons
Wereszczyński File:COA Wettin.svg - Wikimedia Commons Creative Commons Attribution-Share Alike 4.0 International license. Deed - Attribution-ShareAlike 4.0 International - Creative Commons
#ireland #england #ancestry
Join This Channel on YouTube to Get Access to Perks: youtube.com/channel/UCCS3M_uNHH2iOJkpGhkO2SA/join
Subscribe to Celtic History Decoded - youtube.com/channel/UCCS3M_uNHH2iOJkpGhkO2SA?sub_confirmation=1
Differences Between Irish & English DNA…
Chapters:
0:00 Intro
0:15 Ancient DNA Differences & Lactose Tolerance
1:58 Romans, Anglo-Saxons & Vikings
5:19 DNA Haplogroups & Royal Lineages
9:47 Disease Rates & Blood Types
What are the DNA differences and similarities between Ireland and England, and how different are they? And how has this influenced factors like blood types, disease rates, lactose tolerance and haplogroups in the 2 peoples, as well as royal lineages? Well the first DNA difference between the Irish and English comes from their ancient DNA. As I’ve noted in previous videos, the foundational DNA of most Europeans is a mixture of 3 main sources: Western Hunter Gatherers (WHG), Early European Farmers (EEF) and Steppe Ancestry during the Bronze Age. Yet the Irish and English have different rates of these 3 sources.
Sources:
Irving-Pease, E.K., Refoyo-Martínez, A., Barrie, W. et al. The selection landscape and genetic legacy of ancient Eurasians. Nature 625, 312–320 (2024). doi.org/10.1038/s41586-023-06705-1
Gilbert, E., O’Reilly, S., Merrigan, M. et al. The Irish DNA Atlas: Revealing Fine-Scale Population Structure and History within Ireland. Sci Rep 7, 17199 (2017). doi.org/10.1038/s41598-017-17124-4
O'Dushlaine, C., Morris, D., Moskvina, V. et al. Population structure and genome-wide patterns of variation in Ireland and Britain. Eur J Hum Genet 18, 1248–1254 (2010). doi.org/10.1038/ejhg.2010.87
New Study Examines Genetic Structure of British Population | Sci.News
L.M. Cassidy, et al. Neolithic and Bronze Age migration to Ireland and establishment of the insular Atlantic genome, Proc. Natl. Acad. Sci. U.S.A. 113 (2) 368-373, doi.org/10.1073/pnas.1518445113 (2016).
FamilyTreeDNA Discover - Y-DNA Haplogroup R-Z381
Gretzinger, J., Sayer, D., Justeau, P. et al. The Anglo-Saxon migration and the formation of the early English gene pool. Nature 610, 112–119 (2022). doi.org/10.1038/s41586-022-05247-2
FamilyTreeDNA Discover - Y-DNA Haplogroup R-M222
Leslie, S., Winney, B., Hellenthal, G. et al. The fine-scale genetic structure of the British population. Nature 519, 309–314 (2015). doi.org/10.1038/nature14230
FamilyTreeDNA Discover - Y-DNA Haplogroup R-DC782
FamilyTreeDNA Discover - Y-DNA Haplogroup R-L226
What is Cystic Fibrosis | Cystic Fibrosis
FamilyTreeDNA Discover - Y-DNA Haplogroup R-DF98
Gilbert, E., O’Reilly, S., Merrigan, M. et al. The Irish DNA Atlas: Revealing Fine-Scale Population Structure and History within Ireland. Sci Rep 7, 17199 (2017). doi.org/10.1038/s41598-017-17124-4
FamilyTreeDNA Discover - Y-DNA Haplogroup R-Z381
Haplogroup R-L21 - Wikipedia
FamilyTreeDNA Discover - Y-DNA Haplogroup R-U106
Low Genetic Impact of the Roman Occupation of Britain in Rural Communities | Molecular Biology and Evolution | Oxford Academic
Irish Heart Ireland has highest rate of Haemochromatosis in the world - Irish Heart
Milk fueled Bronze Age expansion of ‘eastern cowboys’ into Europe | Science | AAAS
Irish ancestry – English ancestry – Irish DNA – English DNA
Creative Commons Imagery:
Nephron File:Hemosiderosis high mag.jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 3.0 Unported license. Deed - Attribution-ShareAlike 3.0 Unported - Creative Commons
Wojciech Pędzich, Robert Molyneaux File:Yamnaya phenotype, Reconstruction, male, grave Novooleksiivka; Ukraine.png - Wikimedia Commons Creative Commons Attribution-Share Alike 4.0 International license. Deed - Attribution-ShareAlike 4.0 International - Creative Commons
Matteo De Stefano/MUSE File:Homo sapiens - Neolithic - reconstruction - MUSE.jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 3.0 Unported license. Deed - Attribution-ShareAlike 3.0 Unported - Creative Commons
Gernot Keller File:2008-05-17-SuttonHoo (cropped).jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 2.5 Generic license. Deed - Attribution-ShareAlike 2.5 Generic - Creative Commons
SKIBLY101 File:DF13 EUROPE.png - Wikimedia Commons Creative Commons Attribution-Share Alike 4.0 International license. Deed - Attribution-ShareAlike 4.0 International - Creative Commons
Hel-hama File:England 878.svg - Wikimedia Commons Creative Commons Attribution-Share Alike 3.0 Unported license. Deed - Attribution-ShareAlike 3.0 Unported - Creative Commons
Wereszczyński File:COA Wettin.svg - Wikimedia Commons Creative Commons Attribution-Share Alike 4.0 International license. Deed - Attribution-ShareAlike 4.0 International - Creative Commons
#ireland #england #ancestry
