&lt;i&gt;Aedes Aegypti&lt;/i&gt; in the Mediterranean Container Ports at the Time of Climate Change: A Time Bomb on the Mosquito Vector Map of Europe

Tràjer, Attila Jànos

doi:10.2139/ssrn.3864838

SSRN Journal

2021

DOI: 10.2139/ssrn.3864838

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<i>Aedes Aegypti</i> in the Mediterranean Container Ports at the Time of Climate Change: A Time Bomb on the Mosquito Vector Map of Europe

Attila Jànos Tràjer

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2022

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Genomic profiling of climate adaptation in Aedes aegypti along an altitudinal gradient in Nepal indicates non-gradual expansion of the disease vector

Kramer

Pfenninger

Feldmeyer

et al. 2022

Preprint

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BackgroundDriven by globalization, urbanization and climate change, the distribution range of invasive vector species has expanded to previously colder ecoregions. To reduce health-threatening impacts on humans, insect vectors are extensively studied. Population genomics can reveal the genomic basis of adaptation and help to identify emerging trends of vector expansion.ResultsBy applying whole genome analyses and genotype-environment associations to populations of the main dengue vector Ae. aegypti, sampled along an altitudinal temperature gradient in Nepal (200- 1300m), we identify adaptive traits and describe the species’ genomic footprint of climate adaptation to colder ecoregions. We found two clusters of differentiation with significantly different allele frequencies in genes associated to climate adaptation between the highland population (1300m) and all other lowland populations (≤ 800 m). We revealed non-synonymous mutations in 13 of the candidate genes associated to either altitude, precipitation or cold tolerance and identified an isolation-by-environment differentiation pattern.ConclusionOther than the expected gradual differentiation along the altitudinal gradient, our results reveal a distinct genomic differentiation of the highland population. This finding either indicates a differential invasion history to Nepal or local high-altitude adaptation explaining the population’s phenotypic cold tolerance. In any case, this highland population can be assumed to carry pre-adapted alleles relevant for the species’ invasion into colder ecoregions worldwide that way expanding their climate niche.

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Genomic profiling of climate adaptation in Aedes aegypti along an altitudinal gradient in Nepal indicates non-gradual expansion of the disease vector

Kramer

Pfenninger

Feldmeyer

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

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<i>Aedes Aegypti</i> in the Mediterranean Container Ports at the Time of Climate Change: A Time Bomb on the Mosquito Vector Map of Europe

Cited by 1 publication

References 70 publications

Genomic profiling of climate adaptation in Aedes aegypti along an altitudinal gradient in Nepal indicates non-gradual expansion of the disease vector

Genomic profiling of climate adaptation in Aedes aegypti along an altitudinal gradient in Nepal indicates non-gradual expansion of the disease vector

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