Genetic history, structure and gene flow among populations of Belgica antarctica, the only free-living insect in the western Antarctic Peninsula
Changes in climate and environment can impact the sustainability of populations and biodiversity. Understanding population genetic diversity in the past and present can help us better predict species' responses to future environmental change. Antarctica has experienced drastic environmental cha...
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ftnipr:oai:nipr.repo.nii.ac.jp:00017406 2023-07-16T03:54:42+02:00 Genetic history, structure and gene flow among populations of Belgica antarctica, the only free-living insect in the western Antarctic Peninsula 2023-06 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=17406 http://id.nii.ac.jp/1291/00017262/ en eng https://doi.org/10.1016/j.polar.2023.100945 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=17406 http://id.nii.ac.jp/1291/00017262/ Polar Science, 36, 100945(2023-06) 18739652 Belgica antarctica Population genetics SNPs Antarctic biodiversity Journal Article 2023 ftnipr https://doi.org/10.1016/j.polar.2023.100945 2023-06-24T19:39:17Z Changes in climate and environment can impact the sustainability of populations and biodiversity. Understanding population genetic diversity in the past and present can help us better predict species' responses to future environmental change. Antarctica has experienced drastic environmental change which threatens its biodiversity. In this study, we characterized the phylogeography and population genetic structure of Belgica antarctica, a wingless midge that is endemic to the western Antarctic Peninsula. This insect has adaptive features to withstand extremes in temperature, salinity, humidity, anoxia and pH. Belgica antarctica is widespread on widely dispersed islands of ice-free habitat, but questions remain regarding its genetic history, diversity and gene flow. We created nuclear-based, single nucleotide polymorphism (SNP) markers and genotyped 229 individuals from 11 populations to examine historical and current population genetic patterns. Our results support recent divergence among populations on different islands within the last 1 Mya. Furthermore, despite a lack of wings, B. antarctica exhibited frequent migration among islands, perhaps via ocean currents or phoresy with Antarctic vertebrates (e.g. seabirds). The close link between the evolutionary history of B. antarctica and the region's environment and ecology emphasize the importance of understanding its population dynamics to predict its persistence under environmental change. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Belgica antarctica Polar Science Polar Science National Institute of Polar Research Repository, Japan Antarctic Antarctic Peninsula Polar Science 36 100945 |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
topic |
Belgica antarctica Population genetics SNPs Antarctic biodiversity |
spellingShingle |
Belgica antarctica Population genetics SNPs Antarctic biodiversity Genetic history, structure and gene flow among populations of Belgica antarctica, the only free-living insect in the western Antarctic Peninsula |
topic_facet |
Belgica antarctica Population genetics SNPs Antarctic biodiversity |
description |
Changes in climate and environment can impact the sustainability of populations and biodiversity. Understanding population genetic diversity in the past and present can help us better predict species' responses to future environmental change. Antarctica has experienced drastic environmental change which threatens its biodiversity. In this study, we characterized the phylogeography and population genetic structure of Belgica antarctica, a wingless midge that is endemic to the western Antarctic Peninsula. This insect has adaptive features to withstand extremes in temperature, salinity, humidity, anoxia and pH. Belgica antarctica is widespread on widely dispersed islands of ice-free habitat, but questions remain regarding its genetic history, diversity and gene flow. We created nuclear-based, single nucleotide polymorphism (SNP) markers and genotyped 229 individuals from 11 populations to examine historical and current population genetic patterns. Our results support recent divergence among populations on different islands within the last 1 Mya. Furthermore, despite a lack of wings, B. antarctica exhibited frequent migration among islands, perhaps via ocean currents or phoresy with Antarctic vertebrates (e.g. seabirds). The close link between the evolutionary history of B. antarctica and the region's environment and ecology emphasize the importance of understanding its population dynamics to predict its persistence under environmental change. |
format |
Article in Journal/Newspaper |
title |
Genetic history, structure and gene flow among populations of Belgica antarctica, the only free-living insect in the western Antarctic Peninsula |
title_short |
Genetic history, structure and gene flow among populations of Belgica antarctica, the only free-living insect in the western Antarctic Peninsula |
title_full |
Genetic history, structure and gene flow among populations of Belgica antarctica, the only free-living insect in the western Antarctic Peninsula |
title_fullStr |
Genetic history, structure and gene flow among populations of Belgica antarctica, the only free-living insect in the western Antarctic Peninsula |
title_full_unstemmed |
Genetic history, structure and gene flow among populations of Belgica antarctica, the only free-living insect in the western Antarctic Peninsula |
title_sort |
genetic history, structure and gene flow among populations of belgica antarctica, the only free-living insect in the western antarctic peninsula |
publishDate |
2023 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=17406 http://id.nii.ac.jp/1291/00017262/ |
geographic |
Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Belgica antarctica Polar Science Polar Science |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Belgica antarctica Polar Science Polar Science |
op_relation |
https://doi.org/10.1016/j.polar.2023.100945 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=17406 http://id.nii.ac.jp/1291/00017262/ Polar Science, 36, 100945(2023-06) 18739652 |
op_doi |
https://doi.org/10.1016/j.polar.2023.100945 |
container_title |
Polar Science |
container_volume |
36 |
container_start_page |
100945 |
_version_ |
1771541041478893568 |