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African wild dogs (Lycaon pictus) from the Kruger National Park, South Africa are currently not inbred but have low genomic diversity

African wild dogs (Lycaon pictus) have undergone severe population reductions and are listed as endangered on the International Union for Conservation of Nature Red List. Small, isolated populations have the potential to suffer from threats to their genetic diversity that may impact species viabilit...

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Autores principales: Meiring, Christina, Schurz, Haiko, van Helden, Paul, Hoal, Eileen, Tromp, Gerard, Kinnear, Craig, Kleynhans, Léanie, Glanzmann, Brigitte, van Schalkwyk, Louis, Miller, Michele, Möller, Marlo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9440078/
https://www.ncbi.nlm.nih.gov/pubmed/36056068
http://dx.doi.org/10.1038/s41598-022-19025-7
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author Meiring, Christina
Schurz, Haiko
van Helden, Paul
Hoal, Eileen
Tromp, Gerard
Kinnear, Craig
Kleynhans, Léanie
Glanzmann, Brigitte
van Schalkwyk, Louis
Miller, Michele
Möller, Marlo
author_facet Meiring, Christina
Schurz, Haiko
van Helden, Paul
Hoal, Eileen
Tromp, Gerard
Kinnear, Craig
Kleynhans, Léanie
Glanzmann, Brigitte
van Schalkwyk, Louis
Miller, Michele
Möller, Marlo
author_sort Meiring, Christina
collection PubMed
description African wild dogs (Lycaon pictus) have undergone severe population reductions and are listed as endangered on the International Union for Conservation of Nature Red List. Small, isolated populations have the potential to suffer from threats to their genetic diversity that may impact species viability and future survival. This study provides the first set of population-wide genomic data to address conservation concerns for this endangered species. Whole genome sequencing data were generated for 71 free-ranging African wild dogs from the Kruger National Park (KNP), South Africa, and used to estimate important population genomic parameters. Genomic diversity metrics revealed that variation levels were low; however, this African wild dog population showed low levels of inbreeding. Very few first- and second-order relationships were observed in this cohort, with most relationships falling into the third-order or distant category. Patterns of homozygosity could have resulted from historical inbreeding or a loss in genome variation due to a population bottleneck. Although the results suggest that this stronghold African wild dog population maintains low levels of inbreeding, likely due to their cooperative breeding system, it may lead to a continuous population decline when a reduced number of suitable mates are available. Consequently, the low genomic variation may influence species viability over time. This study highlights the importance of assessing population genomic parameters to set conservation priorities. Future studies should include the investigation of the potential of this endangered species to adapt to environmental changes considering the low genomic diversity in this population.
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spelling pubmed-94400782022-09-04 African wild dogs (Lycaon pictus) from the Kruger National Park, South Africa are currently not inbred but have low genomic diversity Meiring, Christina Schurz, Haiko van Helden, Paul Hoal, Eileen Tromp, Gerard Kinnear, Craig Kleynhans, Léanie Glanzmann, Brigitte van Schalkwyk, Louis Miller, Michele Möller, Marlo Sci Rep Article African wild dogs (Lycaon pictus) have undergone severe population reductions and are listed as endangered on the International Union for Conservation of Nature Red List. Small, isolated populations have the potential to suffer from threats to their genetic diversity that may impact species viability and future survival. This study provides the first set of population-wide genomic data to address conservation concerns for this endangered species. Whole genome sequencing data were generated for 71 free-ranging African wild dogs from the Kruger National Park (KNP), South Africa, and used to estimate important population genomic parameters. Genomic diversity metrics revealed that variation levels were low; however, this African wild dog population showed low levels of inbreeding. Very few first- and second-order relationships were observed in this cohort, with most relationships falling into the third-order or distant category. Patterns of homozygosity could have resulted from historical inbreeding or a loss in genome variation due to a population bottleneck. Although the results suggest that this stronghold African wild dog population maintains low levels of inbreeding, likely due to their cooperative breeding system, it may lead to a continuous population decline when a reduced number of suitable mates are available. Consequently, the low genomic variation may influence species viability over time. This study highlights the importance of assessing population genomic parameters to set conservation priorities. Future studies should include the investigation of the potential of this endangered species to adapt to environmental changes considering the low genomic diversity in this population. Nature Publishing Group UK 2022-09-02 /pmc/articles/PMC9440078/ /pubmed/36056068 http://dx.doi.org/10.1038/s41598-022-19025-7 Text en © The Author(s) 2022 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 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/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Meiring, Christina
Schurz, Haiko
van Helden, Paul
Hoal, Eileen
Tromp, Gerard
Kinnear, Craig
Kleynhans, Léanie
Glanzmann, Brigitte
van Schalkwyk, Louis
Miller, Michele
Möller, Marlo
African wild dogs (Lycaon pictus) from the Kruger National Park, South Africa are currently not inbred but have low genomic diversity
title African wild dogs (Lycaon pictus) from the Kruger National Park, South Africa are currently not inbred but have low genomic diversity
title_full African wild dogs (Lycaon pictus) from the Kruger National Park, South Africa are currently not inbred but have low genomic diversity
title_fullStr African wild dogs (Lycaon pictus) from the Kruger National Park, South Africa are currently not inbred but have low genomic diversity
title_full_unstemmed African wild dogs (Lycaon pictus) from the Kruger National Park, South Africa are currently not inbred but have low genomic diversity
title_short African wild dogs (Lycaon pictus) from the Kruger National Park, South Africa are currently not inbred but have low genomic diversity
title_sort african wild dogs (lycaon pictus) from the kruger national park, south africa are currently not inbred but have low genomic diversity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9440078/
https://www.ncbi.nlm.nih.gov/pubmed/36056068
http://dx.doi.org/10.1038/s41598-022-19025-7
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