Unravelling the invasion history of the Asian tiger mosquito in Europe

Molecular Ecology, Год журнала: 2019, Номер 28(9), С. 2360 - 2377

Опубликована: Март 8, 2019

Multiple introductions are key features for the establishment and persistence of introduced species. However, little is known about contribution genetic admixture to invasive potential populations. To address this issue, we studied recent invasion Asian tiger mosquito (Aedes albopictus) in Europe. Combining genome-wide single nucleotide polymorphisms historical knowledge using an approximate Bayesian computation framework, reconstruct colonization routes establish demographic dynamics invasion. The Europe involved at least three independent Albania, North Italy Central that subsequently acted as dispersal centres throughout We show topology human transportation networks shaped histories with being main Introduction modalities conditioned levels diversity invading populations, genetically diverse admixed populations promoted more secondary have spread farther than single-source invasions. This genomic study provides further crucial insights into a general understanding role by modern trade driving biological

Язык: Английский

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The Relative Importance of Genetic Diversity and Phenotypic Plasticity in Determining Invasion Success of a Clonal Weed in the USA and China

Frontiers in Plant Science, Год журнала: 2016, Номер 7

Опубликована: Фев. 24, 2016

Phenotypic plasticity has been proposed as an important adaptive strategy for clonal plants in heterogeneous habitats. Increased phenotypic can be especially beneficial invasive plants, allowing them to colonize new environments even when genetic diversity is low. However, the relative importance of and invasion success remains largely unknown. Here, we performed molecular marker analyses a common garden experiment investigate globally weed Alternanthera philoxeroides response different water availability (terrestrial vs. aquatic habitats). This species relies predominantly on propagation introduced ranges. We therefore expected restricted two sampled ranges (the USA China) compared native range (Argentina), but that may allow species' full niche nonetheless exploited. found clones from China had very low terms both quantitative variation with those Argentina, probably reflecting introduction histories. In contrast, similar patterns were all three regions. Furthermore, despite levels diversity, bioclimatic modeling suggested potential distribution invaded USA. plasticity, not was critical A. invade diverse habitats across broad geographic areas.

Язык: Английский

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Contrasting the effects of natural selection, genetic drift and gene flow on urban evolution in white clover (Trifolium repens)

Proceedings of the Royal Society B Biological Sciences, Год журнала: 2018, Номер 285(1883), С. 20181019 - 20181019

Опубликована: Июль 18, 2018

Urbanization is a global phenomenon with profound effects on the ecology and evolution of organisms. We examined relative roles natural selection, genetic drift gene flow in influencing white clover (

Язык: Английский

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Earlier phenology of a nonnative plant increases impacts on native competitors

Proceedings of the National Academy of Sciences, Год журнала: 2019, Номер 116(13), С. 6199 - 6204

Опубликована: Март 8, 2019

Significance Adaptation to climate can promote the spread of nonnative species, but its wider impacts on native species have rarely been studied. Prickly lettuce ( Lactuca serriola ), an annual plant that has introduced from Europe around world, flowers earlier in arid climates such as those southern California. By comparing L. populations differing flowering time within common garden experiments, we demonstrated California plants experienced stronger competition local early than later ancestral European range, making their predicted persistence with more difficult. Our study suggests adaptation cascading effects ecological communities, potentially increasing biological invasions.

Язык: Английский

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A Whole-Genome Scan for Association with Invasion Success in the Fruit Fly Drosophila suzukii Using Contrasts of Allele Frequencies Corrected for Population Structure

Molecular Biology and Evolution, Год журнала: 2020, Номер 37(8), С. 2369 - 2385

Опубликована: Апрель 11, 2020

Abstract Evidence is accumulating that evolutionary changes are not only common during biological invasions but may also contribute directly to invasion success. The genomic basis of such still largely unexplored. Yet, understanding the response help predict conditions under which invasiveness can be enhanced or suppressed. Here, we characterized genome spotted wing drosophila Drosophila suzukii worldwide this pest insect species, by conducting a genome-wide association study identify genes involved in adaptive processes invasion. Genomic data from 22 population samples were analyzed detect genetic variants associated with status (invasive versus native) sampled populations based on newly developed statistic, called C2, contrasts allele frequencies corrected for structure. We evaluated new statistical framework using simulated sets and implemented it an upgraded version program BayPass. identified relatively small set single-nucleotide polymorphisms show highly significant invasive D. populations. In particular, two genes, RhoGEF64C cpo, contained significantly separate main routes suzukii. Our methodological approaches applied any other more generally model species nonequilibrium demographic binary covariables interest defined at level.

Язык: Английский

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