Genomic biosurveillance of forest invasive alien enemies: A story written in code

Evolutionary Applications, Journal Year: 2019, Volume and Issue: 13(1), P. 95 - 115

Published: Aug. 12, 2019

Abstract The world's forests face unprecedented threats from invasive insects and pathogens that can cause large irreversible damage to the ecosystems. This threatens capacity provide long‐term fiber supply ecosystem services range carbon storage, nutrient cycling, water air purification, soil preservation maintenance of wildlife habitat. Reducing threat forest alien species requires vigilant biosurveillance, process gathering, integrating, interpreting, communicating essential information about pest pathogen achieve early detection warning enable better decision‐making. is challenging due diversity pests need be identified, diverse pathways introduction, difficulty in assessing risk establishment. Genomics powerful new solutions biosurveillance. invasion a story written four chapters: transport, establishment, spread. series processes lead successful leave behind DNA signature tells an invasion. help us understand dynamic, multistep inform management current future introductions. review describes application genomic tools pipelines will accurate identification pathogens, assign outbreak or survey samples putative sources identify spread, assess based on traits impact outcome.

Language: Английский

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A global synthesis of the patterns of genetic diversity in endangered and invasive plants

Biological Conservation, Journal Year: 2024, Volume and Issue: 291, P. 110473 - 110473

Published: Feb. 28, 2024

Language: Английский

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The genomic secrets of invasive plants

New Phytologist, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Summary Genomics has revolutionised the study of invasive species, allowing evolutionary biologists to dissect mechanisms invasion in unprecedented detail. Botanical research played an important role these advances, driving much what we currently know about key determinants success (e.g. hybridisation, whole‐genome duplication). Despite this, a comprehensive review plant genomics been lacking. Here, aim address this gap, highlighting recent discoveries that have helped progress field. For example, by leveraging natural and experimental populations, botanical confirmed importance large‐effect standing variation during adaptation species. Further, genomic investigations plants are increasingly revealing large structural variants, as well genetic changes induced duplication such redundancy or breakdown dosage‐sensitive reproductive barriers, can play adaptive evolution invaders. However, numerous questions remain, including when chromosomal inversions might help hinder invasions, whether gene reuse is common epigenetically mutations underpin plasticity populations. We conclude other outstanding studies poised answer.

Language: Английский

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Multi‐generational fitness legacies of natural immigration: theoretical and empirical perspectives and opportunities

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

ABSTRACT Natural dispersal between populations, and resulting immigration, influences population size genetic variation is therefore a key process driving reciprocal interactions ecological evolutionary dynamics. Here, dynamic outcomes fundamentally depend not only on the relative fitnesses of natural immigrants existing residents, but also fitness their various descendants manifested in environments. Yet, different sets immigrants' have rarely been explicitly or rigorously estimated rationalised context wild spatially structured populations. We still surprisingly limited capability to understand predict ultimate multi‐generational impacts immigration Key theoretical frameworks that outcrossing lineages developed widely utilised contexts agriculture speciation research. These applied conservation genetics research positive (widely termed “heterosis”) negative “outbreeding depression”) rescue highly inbred However, these guide analyses legacies regular ecology, precluding inferences basis of, implications sub‐population divergence. Accordingly, facilitate translation concepts inspire new empirical efforts, we first review synthesise bodies theory outcomes, crosses lines species. Such reveals how diverse can be generated by common underlying mechanisms, depending architecture fitness, forms genotype–phenotype–fitness maps, roles adaptive non‐adaptive mechanisms differentiation. Interestingly, such predicts particularly weakly diverged lineages, constituting parameter space where populations lie. then conduct systematic literature assess degree which actually quantified. Our shows surprising paucity studies quantify consequences from wild. Furthermore, undertaking experimental among used inconsistent methodologies, quantitative even qualitative overall conclusions. To initiate progress, outline long‐standing recent methodological developments, including cutting‐edge statistical genomic tools, could combined with field data residents nature. thereby highlight gaps now need filled further our understanding dispersal‐mediated drivers constraints eco‐evolutionary dynamics arising

Language: Английский

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Population genomic and historical analysis suggests a global invasion by bridgehead processes in Mimulus guttatus

Communications Biology, Journal Year: 2021, Volume and Issue: 4(1)

Published: March 12, 2021

Abstract Imperfect historical records and complex demographic histories present challenges for reconstructing the history of biological invasions. Here, we combine records, extensive worldwide genome-wide sampling, analyses to investigate global invasion Mimulus guttatus from North America Europe Southwest Pacific. By sampling 521 plants 158 native introduced populations genotyped at >44,000 loci, determined that invasive M. was first likely British Isles Aleutian Islands (Alaska), followed by admixture multiple parts range. We hypothesise in then served as a bridgehead vanguard invasions worldwide. Our results emphasise highly admixed nature demonstrate potential serve sources secondary admixture, producing novel hybrids. Unravelling provides starting point understand how adapt environments.

Language: Английский

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Genetic Diversity and Thermal Performance in Invasive and Native Populations of African Fig Flies

Molecular Biology and Evolution, Journal Year: 2020, Volume and Issue: 37(7), P. 1893 - 1906

Published: Feb. 25, 2020

Abstract During biological invasions, invasive populations can suffer losses of genetic diversity that are predicted to negatively impact their fitness/performance. Despite examples harboring lower than conspecific in native range, few studies have linked this a decrease fitness. Using genome sequences, we show the African fig fly, Zaprionus indianus, less range and is proportionally regions experiencing low recombination rates. This result suggests selection may played role lowering populations. We next use interspecific comparisons remains relatively high Z. indianus when compared with other closely related species. By comparing orthologous gene regions, also genome-wide landscape differs between indicating invasion not only affects amounts but how distributed across genome. Finally, parameter estimates from thermal performance curves for 13 species has broadest niche measured species, does differ These results illustrate aspects be decoupled measures fitness, broad helped facilitate indianus’s expansion.

Language: Английский

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Predicting species invasiveness with genomic data: Is genomic offset related to establishment probability?

Evolutionary Applications, Journal Year: 2024, Volume and Issue: 17(6)

Published: June 1, 2024

Abstract Predicting the risk of establishment and spread populations outside their native range represents a major challenge in evolutionary biology. Various methods have recently been developed to estimate population (mal)adaptation new environment with genomic data via so‐called Genomic Offset (GO) statistics. These approaches are particularly promising for studying invasive species but still rarely used this context. Here, we evaluated relationship between GO probability using both silico empirical data. First, designed invasion simulations evaluate ability predict two computation (Geometric Gradient Forest) under several conditions. Additionally, aimed interpretability absolute Geometric values, which theoretically represent adaptive genetic distance from distinct environments. Second, utilizing public crop pest Bactrocera tryoni , fruit fly Northern Australia, computed “source” diverse locations within invaded areas. This practical application context biological underscores its potential providing insights guiding recommendations future assessment. Overall, our results suggest that statistics good predictors may thus inform risk, although influence factors on prediction performance (e.g., propagule pressure or admixture) will need further investigation.

Language: Английский

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Ploidy variation modulates outbreeding response and promotes mating system evolution in a selfing plant lineage

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: April 19, 2025

Summary Outbreeding response, the phenotypic differences observed between selfed parental lines and their outcrossed offspring, can influence evolution of selfing strategies. However, such effect remains poorly understood in non-crop species. We investigated outbreeding response variation across ploidy levels Erysimum incanum , a predominantly plant complex with diploid, tetraploid, hexaploid populations distributed Iberian Peninsula Morocco. performed controlled within-population crosses to generate offspring varying heterozygosity types. quantified individual, flower, reproductive traits, we estimated fitness components, assessed trait modularity integration see how affects coordination. Tetraploid showed strongest most consistently positive responses, particularly gamete production. Trait-specific responses were positively associated levels. Increasing was linked reduction integration, suggesting loosening correlations. Our results show that is ploidy-dependent functionally connected fitness. This suggests it may act as selective force promoting outcrossing highly inbred lineages. suggest dynamic evolvable trait, implications for mating system transitions diversification populations.

Language: Английский

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An Established Plant Invader May Still Benefit From Increasing Genetic Diversity—Insights From Artificial Populations in a Common Garden Experiment

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(2)

Published: Feb. 1, 2025

ABSTRACT Genetic diversity and competitive ability, though extensively studied in the context of biological invasions, are still poorly understood their relative importance, especially when shifting perspective from an individual plant's phenotype to overall population performance. Most approaches addressing role genetic involve comparison standing variation field populations combined with experimental treatments on plants. Composing predefined mixtures manipulate would be approach test for direct effects We determined pairwise distances among 16 invasive 22 native Jacobaea vulgaris GAERTN. using single nucleotide polymorphisms (SNP). Based this information, we created each 15 de‐novo different levels both origins. These were subjected three decreasing microsite availability by a matrix either 0, 5, or 10 individuals Festuca rubra . monitored performance continuously throughout two growing seasons study interactions between origin, availability, (generalized) linear models. This allowed us uncover whether importance those factors varies life‐stage biennial species. found no ambiguous patterns hypothesized beneficial effect J. populations. Native tended respond negatively increasing diversity, under more favorable site conditions, but was not persistent pattern only evident through continuous monitoring. Invasive could benefit during early establishment, interaction restricted availability. Our results do suggest that supports establishment certain environmental conditions. Therefore, recommendations nature conservation, efforts should aim at limiting propagule addition already invaded areas, even well‐established

Language: Английский

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Experimental admixture among geographically disjunct populations of an invasive plant yields a global mosaic of reproductive incompatibility and heterosis

Journal of Ecology, Journal Year: 2021, Volume and Issue: 109(5), P. 2152 - 2162

Published: Feb. 14, 2021

Abstract Invasive species have the ability to rapidly adapt in new regions where they are introduced. Classic evolutionary theory predicts that accumulation of genetic differences over time allopatric isolation may lead reproductive incompatibilities resulting decreases success and, eventually, speciation. However, experimental evidence for this theoretical prediction context invasive is lacking. We aimed test potential allopatry determine plants, by experimentally admixing genotypes from six different native and non‐native Centaurea solstitialis , an forb which preliminary studies detected some degree between one region. grew plants under common garden conditions outcrossed individuals originating source populations introduced range evaluate terms seed ovule ratio produced. also assessed geographical among C . as a driving factor success. Experimental admixture generated mixed fitness effects, including significant increases, no compared crosses within population (control). Americas preponderantly negative interactions, regardless pollen source, suggesting selection against immigrants reinforcement. Other (Australia) well Spain demonstrated increase between‐region crosses, indicating inbreeding. These show asymmetrical response inter‐regional gene flow, but distance. Synthesis The speed adaptation might be more rapid than previously assumed. Our data global mosaic outputs, showcasing array processes unfolding during colonization at large biogeographical scales.

Language: Английский

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