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The Newfoundland and Labrador mosaic founder population descends from an Irish and British diaspora from 300 years ago

The founder population of Newfoundland and Labrador (NL) is a unique genetic resource, in part due to its geographic and cultural isolation, where historical records describe a migration of European settlers, primarily from Ireland and England, to NL in the 18th and 19th centuries. Whilst its histor...

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Autores principales: Gilbert, Edmund, Zurel, Heather, MacMillan, Margaret E., Demiriz, Sedat, Mirhendi, Sadra, Merrigan, Michael, O’Reilly, Seamus, Molloy, Anne M., Brody, Lawrence C., Bodmer, Walter, Leach, Richard A., Scott, Roderick E. M., Mugford, Gerald, Randhawa, Ranjit, Stephens, J. Claiborne, Symington, Alison L., Cavalleri, Gianpiero L., Phillips, Michael S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10147672/
https://www.ncbi.nlm.nih.gov/pubmed/37117635
http://dx.doi.org/10.1038/s42003-023-04844-9
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author Gilbert, Edmund
Zurel, Heather
MacMillan, Margaret E.
Demiriz, Sedat
Mirhendi, Sadra
Merrigan, Michael
O’Reilly, Seamus
Molloy, Anne M.
Brody, Lawrence C.
Bodmer, Walter
Leach, Richard A.
Scott, Roderick E. M.
Mugford, Gerald
Randhawa, Ranjit
Stephens, J. Claiborne
Symington, Alison L.
Cavalleri, Gianpiero L.
Phillips, Michael S.
author_facet Gilbert, Edmund
Zurel, Heather
MacMillan, Margaret E.
Demiriz, Sedat
Mirhendi, Sadra
Merrigan, Michael
O’Reilly, Seamus
Molloy, Anne M.
Brody, Lawrence C.
Bodmer, Walter
Leach, Richard A.
Scott, Roderick E. M.
Mugford, Gerald
Randhawa, Ranjit
Stephens, J. Claiborne
Symington, Alison L.
Cavalleri, Gianpiero L.
Phillips, Michael S.
author_sort Gilbert, Edmund
collection PubMed
description The founder population of Newfoundland and Labrador (NL) is a unique genetic resource, in part due to its geographic and cultural isolation, where historical records describe a migration of European settlers, primarily from Ireland and England, to NL in the 18th and 19th centuries. Whilst its historical isolation, and increased prevalence of certain monogenic disorders are well appreciated, details of the fine-scale genetic structure and ancestry of the population are lacking. Understanding the genetic origins and background of functional, disease causing, genetic variants would aid genetic mapping efforts in the Province. Here, we leverage dense genome-wide SNP data on 1,807 NL individuals to reveal fine-scale genetic structure in NL that is clustered around coastal communities and correlated with Christian denomination. We show that the majority of NL European ancestry can be traced back to the south-east and south-west of Ireland and England, respectively. We date a substantial population size bottleneck approximately 10-15 generations ago in NL, associated with increased haplotype sharing and autozygosity. Our results reveal insights into the population history of NL and demonstrate evidence of a population conducive to further genetic studies and biomarker discovery.
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spelling pubmed-101476722023-04-30 The Newfoundland and Labrador mosaic founder population descends from an Irish and British diaspora from 300 years ago Gilbert, Edmund Zurel, Heather MacMillan, Margaret E. Demiriz, Sedat Mirhendi, Sadra Merrigan, Michael O’Reilly, Seamus Molloy, Anne M. Brody, Lawrence C. Bodmer, Walter Leach, Richard A. Scott, Roderick E. M. Mugford, Gerald Randhawa, Ranjit Stephens, J. Claiborne Symington, Alison L. Cavalleri, Gianpiero L. Phillips, Michael S. Commun Biol Article The founder population of Newfoundland and Labrador (NL) is a unique genetic resource, in part due to its geographic and cultural isolation, where historical records describe a migration of European settlers, primarily from Ireland and England, to NL in the 18th and 19th centuries. Whilst its historical isolation, and increased prevalence of certain monogenic disorders are well appreciated, details of the fine-scale genetic structure and ancestry of the population are lacking. Understanding the genetic origins and background of functional, disease causing, genetic variants would aid genetic mapping efforts in the Province. Here, we leverage dense genome-wide SNP data on 1,807 NL individuals to reveal fine-scale genetic structure in NL that is clustered around coastal communities and correlated with Christian denomination. We show that the majority of NL European ancestry can be traced back to the south-east and south-west of Ireland and England, respectively. We date a substantial population size bottleneck approximately 10-15 generations ago in NL, associated with increased haplotype sharing and autozygosity. Our results reveal insights into the population history of NL and demonstrate evidence of a population conducive to further genetic studies and biomarker discovery. Nature Publishing Group UK 2023-04-28 /pmc/articles/PMC10147672/ /pubmed/37117635 http://dx.doi.org/10.1038/s42003-023-04844-9 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Gilbert, Edmund
Zurel, Heather
MacMillan, Margaret E.
Demiriz, Sedat
Mirhendi, Sadra
Merrigan, Michael
O’Reilly, Seamus
Molloy, Anne M.
Brody, Lawrence C.
Bodmer, Walter
Leach, Richard A.
Scott, Roderick E. M.
Mugford, Gerald
Randhawa, Ranjit
Stephens, J. Claiborne
Symington, Alison L.
Cavalleri, Gianpiero L.
Phillips, Michael S.
The Newfoundland and Labrador mosaic founder population descends from an Irish and British diaspora from 300 years ago
title The Newfoundland and Labrador mosaic founder population descends from an Irish and British diaspora from 300 years ago
title_full The Newfoundland and Labrador mosaic founder population descends from an Irish and British diaspora from 300 years ago
title_fullStr The Newfoundland and Labrador mosaic founder population descends from an Irish and British diaspora from 300 years ago
title_full_unstemmed The Newfoundland and Labrador mosaic founder population descends from an Irish and British diaspora from 300 years ago
title_short The Newfoundland and Labrador mosaic founder population descends from an Irish and British diaspora from 300 years ago
title_sort newfoundland and labrador mosaic founder population descends from an irish and british diaspora from 300 years ago
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10147672/
https://www.ncbi.nlm.nih.gov/pubmed/37117635
http://dx.doi.org/10.1038/s42003-023-04844-9
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