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Population genomics reveals lack of greater white-fronted introgression into the Swedish lesser white-fronted goose

Interspecific introgression is considered a potential threat to endangered taxa. One example where this has had a major impact on conservation policy is the lesser white-fronted goose (LWfG). After a dramatic decline in Sweden, captive breeding birds were released between 1981–1999 with the aim to r...

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Autores principales: Díez-del-Molino, David, von Seth, Johanna, Gyllenstrand, Niclas, Widemo, Fredrik, Liljebäck, Niklas, Svensson, Mikael, Sjögren-Gulve, Per, Dalén, Love
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7591532/
https://www.ncbi.nlm.nih.gov/pubmed/33110153
http://dx.doi.org/10.1038/s41598-020-75315-y
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author Díez-del-Molino, David
von Seth, Johanna
Gyllenstrand, Niclas
Widemo, Fredrik
Liljebäck, Niklas
Svensson, Mikael
Sjögren-Gulve, Per
Dalén, Love
author_facet Díez-del-Molino, David
von Seth, Johanna
Gyllenstrand, Niclas
Widemo, Fredrik
Liljebäck, Niklas
Svensson, Mikael
Sjögren-Gulve, Per
Dalén, Love
author_sort Díez-del-Molino, David
collection PubMed
description Interspecific introgression is considered a potential threat to endangered taxa. One example where this has had a major impact on conservation policy is the lesser white-fronted goose (LWfG). After a dramatic decline in Sweden, captive breeding birds were released between 1981–1999 with the aim to reinforce the population. However, the detection of greater white-fronted goose (GWfG) mitochondrial DNA in the LWfG breeding stock led to the release program being dismantled, even though the presence of GWfG introgression in the actual wild Swedish LWfG population was never documented. To examine this, we sequenced the complete genomes of 21 LWfG birds from the Swedish, Russian and Norwegian populations, and compared these with genomes from other goose species, including the GWfG. We found no evidence of interspecific introgression into the wild Swedish LWfG population in either nuclear genomic or mitochondrial data. Moreover, Swedish LWfG birds are genetically distinct from the Russian and Norwegian populations and display comparatively low genomic diversity and high levels of inbreeding. Our findings highlight the utility of genomic approaches in providing scientific evidence that can help improve conservation management as well as policies for breeding and reinforcement programmes.
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spelling pubmed-75915322020-10-28 Population genomics reveals lack of greater white-fronted introgression into the Swedish lesser white-fronted goose Díez-del-Molino, David von Seth, Johanna Gyllenstrand, Niclas Widemo, Fredrik Liljebäck, Niklas Svensson, Mikael Sjögren-Gulve, Per Dalén, Love Sci Rep Article Interspecific introgression is considered a potential threat to endangered taxa. One example where this has had a major impact on conservation policy is the lesser white-fronted goose (LWfG). After a dramatic decline in Sweden, captive breeding birds were released between 1981–1999 with the aim to reinforce the population. However, the detection of greater white-fronted goose (GWfG) mitochondrial DNA in the LWfG breeding stock led to the release program being dismantled, even though the presence of GWfG introgression in the actual wild Swedish LWfG population was never documented. To examine this, we sequenced the complete genomes of 21 LWfG birds from the Swedish, Russian and Norwegian populations, and compared these with genomes from other goose species, including the GWfG. We found no evidence of interspecific introgression into the wild Swedish LWfG population in either nuclear genomic or mitochondrial data. Moreover, Swedish LWfG birds are genetically distinct from the Russian and Norwegian populations and display comparatively low genomic diversity and high levels of inbreeding. Our findings highlight the utility of genomic approaches in providing scientific evidence that can help improve conservation management as well as policies for breeding and reinforcement programmes. Nature Publishing Group UK 2020-10-27 /pmc/articles/PMC7591532/ /pubmed/33110153 http://dx.doi.org/10.1038/s41598-020-75315-y Text en © The Author(s) 2020 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Díez-del-Molino, David
von Seth, Johanna
Gyllenstrand, Niclas
Widemo, Fredrik
Liljebäck, Niklas
Svensson, Mikael
Sjögren-Gulve, Per
Dalén, Love
Population genomics reveals lack of greater white-fronted introgression into the Swedish lesser white-fronted goose
title Population genomics reveals lack of greater white-fronted introgression into the Swedish lesser white-fronted goose
title_full Population genomics reveals lack of greater white-fronted introgression into the Swedish lesser white-fronted goose
title_fullStr Population genomics reveals lack of greater white-fronted introgression into the Swedish lesser white-fronted goose
title_full_unstemmed Population genomics reveals lack of greater white-fronted introgression into the Swedish lesser white-fronted goose
title_short Population genomics reveals lack of greater white-fronted introgression into the Swedish lesser white-fronted goose
title_sort population genomics reveals lack of greater white-fronted introgression into the swedish lesser white-fronted goose
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7591532/
https://www.ncbi.nlm.nih.gov/pubmed/33110153
http://dx.doi.org/10.1038/s41598-020-75315-y
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