Genetic history, structure and gene flow among populations of Belgica antarctica, the only free-living insect in the western Antarctic Peninsula
Genetic history, structure and gene flow among populations of Belgica antarctica, the only free-living insect in the western Antarctic Peninsula
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南极半岛西部唯一自由生活的昆虫 Belgica antarctica 种群的遗传历史、结构和基因流
DOI:
10.1016/j.polar.2023.100945
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发表时间:
2023
期刊:
影响因子:
1.8
通讯作者:
Michel, Andy
中科院分区:
文献类型:
--
作者:
Edgington, Hilary;Pavinato, Vitor A.C.;Spacht, Drew;Gantz, J.D.;Convey, Peter;Lee, Richard E.;Denlinger, David L.;Michel, Andy
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 ofBelgica 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 antarcticais 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. antarcticaexhibited frequent migration among islands, perhaps via ocean currents or phoresy with Antarctic vertebrates (e.g.seabirds). The close link between the evolutionary history ofB. antarcticaand the region's environment and ecology emphasize the importance of understanding its population dynamics to predict its persistence under environmental change.
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影响因子:
48
作者:
Langmead, Ben;Salzberg, Steven L.
通讯作者:
Salzberg, Steven L.
影响因子:
11.6
作者:
通讯作者:
--
影响因子:
1.6
作者:
B. V. van Vuuren;Jennifer E. Lee;P. Convey;S. Chown
通讯作者:
S. Chown
DOI:
10.1007/978-3-642-84074-6
发表时间:
1990
期刊:
--
影响因子:
--
作者:
通讯作者:
--
影响因子:
4.9
作者:
A. McGaughran;A. Terauds;P. Convey;C. Fraser
通讯作者:
C. Fraser