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Hrabovský M, Kubalová S, Mičieta K, Ščevková J. Environmental impacts on intraspecific variation in Ambrosia artemisiifolia genome size in Slovakia, Central Europe. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:33960-33974. [PMID: 38693457 PMCID: PMC11136817 DOI: 10.1007/s11356-024-33410-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 04/16/2024] [Indexed: 05/03/2024]
Abstract
The quantity of DNA in angiosperms exhibits variation attributed to many external influences, such as environmental factors, geographical features, or stress factors, which exert constant selection pressure on organisms. Since invasive species possess adaptive capabilities to acclimate to novel environmental conditions, ragweed (Ambrosia artemisiifolia L.) was chosen as a subject for investigating their influence on genome size variation. Slovakia has diverse climatic conditions, suitable for testing the hypothesis that air temperature and precipitation, the main limiting factors of ragweed occurrence, would also have an impact on its genome size. Our results using flow cytometry confirmed this hypothesis and also found a significant association with geographical features such as latitude, altitude, and longitude. We can conclude that plants growing in colder environments farther from oceanic influences exhibit smaller DNA amounts, while optimal growth conditions result in a greater variability in genome size, reflecting the diminished effect of selection pressure.
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Affiliation(s)
- Michal Hrabovský
- Department of Botany, Faculty of Natural Sciences, Comenius University, Révová 39, 811 02, Bratislava, Slovakia.
| | - Silvia Kubalová
- Department of Botany, Faculty of Natural Sciences, Comenius University, Révová 39, 811 02, Bratislava, Slovakia
| | - Karol Mičieta
- Department of Botany, Faculty of Natural Sciences, Comenius University, Révová 39, 811 02, Bratislava, Slovakia
| | - Jana Ščevková
- Department of Botany, Faculty of Natural Sciences, Comenius University, Révová 39, 811 02, Bratislava, Slovakia
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2
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Putra AR, Hodgins KA, Fournier‐Level A. Assessing the invasive potential of different source populations of ragweed ( Ambrosia artemisiifolia L.) through genomically informed species distribution modelling. Evol Appl 2024; 17:e13632. [PMID: 38283606 PMCID: PMC10810254 DOI: 10.1111/eva.13632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 01/30/2024] Open
Abstract
The genetic composition of founding populations is likely to play a key role in determining invasion success. Individual genotypes may differ in habitat preference and environmental tolerance, so their ability to colonize novel environments can be highly variable. Despite the importance of genetic variation on invasion success, its influence on the potential distribution of invaders is rarely investigated. Here, we integrate population genomics and ecological niche models (ENMs) into a single framework to predict the distribution of globally invasive common ragweed (Ambrosia artemisiifolia) in Australia. We identified three genetic clusters for ragweed and used these to construct cluster-specific ENMs and characterize within-species niche differentiation. The potential range of ragweed in Australia depended on the genetic composition and continent of origin of the introduced population. Invaders originating from warmer, wetter climates had a broader potential distribution than those from cooler, drier ones. By quantifying this change, we identified source populations most likely to expand the ragweed distribution. As prevention remains the most effective method of invasive species management, our work provides a valuable way of ranking the threat posed by different populations to better inform management decisions.
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Affiliation(s)
- Andhika R. Putra
- School of BioSciencesThe University of MelbourneParkvilleVictoriaAustralia
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3
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Xian X, Zhao H, Wang R, Huang H, Chen B, Zhang G, Liu W, Wan F. Climate change has increased the global threats posed by three ragweeds (Ambrosia L.) in the Anthropocene. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160252. [PMID: 36427731 DOI: 10.1016/j.scitotenv.2022.160252] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 11/07/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Invasive alien plants (IAPs) substantially affect the native biodiversity, agriculture, industry, and human health worldwide. Ambrosia (ragweed) species, which are major IAPs globally, produce a significant impact on human health and the natural environment. In particular, invasion of A. artemisiifolia, A. psilostachya, and A. trifida in non-native continents is more extensive and severe than that of other species. Here, we used biomod2 ensemble model based on environmental and species occurrence data to predict the potential geographical distribution, overlapping geographical distribution areas, and the ecological niche dynamics of these three ragweeds and further explored the environmental variables shaping the observed patterns to assess the impact of these IAPs on the natural environment and public health. The ecological niche has shifted in the invasive area compared with that in the native area, which increased the invasion risk of three Ambrosia species during the invasion process in the world. The potential geographical distribution and overlapping geographical distribution areas of the three Ambrosia species are primarily distributed in Asia, North America, and Europe, and are expected to increase under four representative concentration pathways in the 2050s. The centers of potential geographical distributions of the three Ambrosia species showed a tendency to shift poleward from the current time to the 2050s. Bioclimatic variables and the human influence index were more significant in shaping these patterns than other factors. In brief, climate change has facilitated the expansion of the geographical distribution and overlapping geographical distribution areas of the three Ambrosia species. Ecomanagement and cross-country management strategies are warranted to mitigate the future effects of the expansion of these ragweed species worldwide in the Anthropocene on the natural environment and public health.
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Affiliation(s)
- Xiaoqing Xian
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Science, Beijing 100193, China
| | - Haoxiang Zhao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Science, Beijing 100193, China
| | - Rui Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Science, Beijing 100193, China
| | - Hongkun Huang
- Rural Energy and Environment Agency, Ministry of Agriculture and Rural Affairs, Beijing 100125, China
| | - Baoxiong Chen
- Rural Energy and Environment Agency, Ministry of Agriculture and Rural Affairs, Beijing 100125, China
| | - Guifen Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Science, Beijing 100193, China
| | - Wanxue Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Science, Beijing 100193, China.
| | - Fanghao Wan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Science, Beijing 100193, China
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4
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Magyar D, Novák R, Udvardy O, Páldy A, Szigeti T, Stjepanović B, Hrga I, Večenaj A, Vucić A, Peroš Pucar D, Šikoparija B, Radišić P, Škorić T, Ščevková J, Simon-Csete E, Nagy M, Leelőssy Á. Unusual early peaks of airborne ragweed (Ambrosia L.) pollen in the Pannonian Biogeographical Region. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2022; 66:2195-2203. [PMID: 36053297 DOI: 10.1007/s00484-022-02348-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 08/04/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
Early peaks of airborne ragweed (Ambrosia L.) pollen concentrations were observed at several monitoring stations in Hungary in June 2017 and 2018, one month before the usual start of the pollen season at the end of July. Backward trajectories were calculated to simulate potential sources of pollen collected at different locations in the Pannonian Biogeographical Region. In a collaboration between aerobiological and phenological networks, a nationwide campaign was conducted to collect field data of ragweed blooming. During field surveys, ragweed plants having extremely early blooming were found most abundantly in a rural site near Vaja (North-East Hungary) and other locations in Hungary. Field observations matched with source areas identified by trajectory analyses; i.e., early-flowering ragweed plants were found at some of these locations. Although similar peaks of airborne pollen concentrations were not detected in other years (e.g., 2016, 2019-2021), alarming results suggest the possibility of expanding seasons of ragweed allergy.
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Affiliation(s)
- D Magyar
- National Public Health Center, Hungarian Aerobiological Network, Budapest, Hungary.
| | - R Novák
- National Food Chain Safety Office, Directorate of Plant Protection, Soil Conservation and Agri-Environment, Budapest, Hungary
| | - O Udvardy
- National Public Health Center, Hungarian Aerobiological Network, Budapest, Hungary
| | - A Páldy
- National Public Health Center, Hungarian Aerobiological Network, Budapest, Hungary
| | - T Szigeti
- National Public Health Center, Hungarian Aerobiological Network, Budapest, Hungary
| | - B Stjepanović
- Andrija Stampar Teaching Institute of Public Health, Zagreb, Croatia
| | - I Hrga
- Andrija Stampar Teaching Institute of Public Health, Zagreb, Croatia
| | - A Večenaj
- Andrija Stampar Teaching Institute of Public Health, Zagreb, Croatia
| | - A Vucić
- Institute of Public Health Zadar, Zadar, Croatia
| | | | - B Šikoparija
- BioSense Institute - Research Institute for Information Technologies in Biosystems, Novi Sad, Serbia
| | - P Radišić
- BioSense Institute - Research Institute for Information Technologies in Biosystems, Novi Sad, Serbia
| | - T Škorić
- Public Health Institute, Subotica, Serbia
| | - J Ščevková
- Faculty of Natural Sciences, Department of Botany, Comenius University in Bratislava, Bratislava, Slovakia
| | - E Simon-Csete
- Department of Plant and Soil Protection, Government Office of Pest County, Budapest, Hungary
| | - M Nagy
- Department of Plant Health, Government Office of Szabolcs-Szatmár-Bereg County, Nyíregyháza, Hungary
| | - Á Leelőssy
- National Public Health Center, Hungarian Aerobiological Network, Budapest, Hungary
- Department of Meteorology, Eötvös Loránd University, Institute of Geography and Earth Sciences, Budapest, Hungary
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5
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Prapas D, Scalone R, Lee J, Nurkowski KA, Bou‐assi S, Rieseberg L, Battlay P, Hodgins KA. Quantitative trait loci mapping reveals an oligogenic architecture of a rapidly adapting trait during the European invasion of common ragweed. Evol Appl 2022; 15:1249-1263. [PMID: 36051461 PMCID: PMC9423086 DOI: 10.1111/eva.13453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 06/05/2022] [Accepted: 06/30/2022] [Indexed: 01/09/2023] Open
Abstract
Biological invasions offer a unique opportunity to investigate evolution over contemporary timescales. Rapid adaptation to local climates during range expansion can be a major determinant of invasion success, yet fundamental questions remain about its genetic basis. This study sought to investigate the genetic basis of climate adaptation in invasive common ragweed (Ambrosia artemisiifolia). Flowering time adaptation is key to this annual species' invasion success, so much so that it has evolved repeated latitudinal clines in size and phenology across its native and introduced ranges despite high gene flow among populations. Here, we produced a high-density linkage map (4493 SNPs) and paired this with phenotypic data from an F2 mapping population (n = 336) to identify one major and two minor quantitative trait loci (QTL) underlying flowering time and height differentiation in this species. Within each QTL interval, several candidate flowering time genes were also identified. Notably, the major flowering time QTL detected in this study was found to overlap with a previously identified haploblock (putative inversion). Multiple genetic maps of this region identified evidence of suppressed recombination in specific genotypes, consistent with inversions. These discoveries support the expectation that a concentrated genetic architecture with fewer, larger, and more tightly linked alleles should underlie rapid local adaptation during invasion, particularly when divergently adapting populations experience high levels of gene flow.
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Affiliation(s)
- Diana Prapas
- School of Biological SciencesMonash UniversityMelbourneVictoriaAustralia
| | - Romain Scalone
- Department of Crop Production Ecology, Uppsala Ecology CenterSwedish University of Agricultural SciencesUppsalaSweden,Department of Grapevine BreedingHochschule Geisenheim UniversityGeisenheimGermany
| | - Jacqueline Lee
- School of Biological SciencesMonash UniversityMelbourneVictoriaAustralia
| | - Kristin A. Nurkowski
- School of Biological SciencesMonash UniversityMelbourneVictoriaAustralia,Department of Botany and Biodiversity Research CentreUniversity of British ColumbiaVancouverCanada
| | - Sarah Bou‐assi
- School of Biological SciencesMonash UniversityMelbourneVictoriaAustralia
| | - Loren Rieseberg
- Department of Botany and Biodiversity Research CentreUniversity of British ColumbiaVancouverCanada
| | - Paul Battlay
- School of Biological SciencesMonash UniversityMelbourneVictoriaAustralia
| | - Kathryn A. Hodgins
- School of Biological SciencesMonash UniversityMelbourneVictoriaAustralia
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6
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Zhao W, Liu T, Sun M, Wang H, Liu X, Su P. Rapid monitoring of Ambrosia artemisiifolia in semi-arid regions based on ecological convergence and phylogenetic relationships. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.926990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Rapid monitoring and early elimination are important measures to control the spread of invasive plants. Ambrosia artemisiifolia is a globally distributed harmful invasive weed. The aim of this study was to clarify the invasion habitat preferences of A. artemisiifolia and the interspecific associations or phylogenetic relationships between this and native species in the Yili River Valley of Xinjiang, China. We identified the preferred habitat types of A. artemisiifolia, and investigated the composition and distribution of native species at the early stage of invasion by targeted sampling at 186 sites. By comparing the associations and phylogenetic distance between A. artemisiifolia and native species with those in Xinjiang and worldwide, we assessed the feasibility of using native species as indicators for rapid monitoring of A. artemisiifolia. A. artemisiifolia displayed an obvious invasive preference for semi-arid areas, particularly road margins (27.96%), forest (21.51%), farmland (19.35%), wasteland (12.37%), residential areas (10.75%), and grassland (8.06%). The composition and distribution of native species were similar across habitats, with more than 50% co-occurrence of A. artemisiifolia with Setaria viridis, Poa annua, Arrhenatherum elatius, Artemisia annua, Artemisia vulgaris, Artemisia leucophylla, Cannabis sativa, and Chenopodium album. A. artemisiifolia was more likely to show co-occurrence with closely related species. Overall, 53.85% of the above indicator native species with high co-occurrence were widely distributed in the potential suitable areas for A. artemisiifolia in Xinjiang. Globally, the species with the highest occurrence belonged to the genera Chenopodium (58%), Bromus, Poa, Setaria, and Trifolium (>40%). Therefore, native species with the strong association and phylogenetic distant relationship to A. artemisiifolia can be employed as indicators for rapid and accurate monitoring in semi-arid areas.
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7
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Rushing NS, Flint SA, Shaw RG. Latitude of seed source impacts flowering phenology and fitness in translocated plant populations. Restor Ecol 2021. [DOI: 10.1111/rec.13464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Naomi S. Rushing
- Department of Ecology, Evolution and Behavior University of Minnesota St Paul MN 55108 U.S.A
| | - Shelby A. Flint
- Department of Biology Southwest Minnesota State University Marshall MN 56258 U.S.A
| | - Ruth G. Shaw
- Department of Ecology, Evolution and Behavior University of Minnesota St Paul MN 55108 U.S.A
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8
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Wang D, Cui B, Duan S, Chen J, Fan H, Lu B, Zheng J. Moving north in China: The habitat of Pedicularis kansuensis in the context of climate change. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 697:133979. [PMID: 31479906 DOI: 10.1016/j.scitotenv.2019.133979] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 08/17/2019] [Accepted: 08/17/2019] [Indexed: 05/23/2023]
Abstract
Pedicularis kansuensis is a poisonous grass and a semi-parasitic plant that has spread rapidly in alpine grasslands in recent years and caused great harm to animal husbandry and the ecological environment. However, little is known about the habitat of P. kansuensis and the key environmental factors that influence its expansion. We assessed the potential impact of climate change on the distribution of P. kansuensis in China under representative concentration pathway (RCP) 2.6 and RCP 8.5 using maximum entropy (MaxEnt) and MigClim for the years 2050 and 2070 and examined key environmental factors affecting P. kansuensis distribution. In total, 118 occurrence points and fourteen selected variables were used for the modeling. The models developed for P. kansuensis showed excellent performance (AUC > 0.9 and TSS > 0.90). The results were as follows. 1) The occupied habitats for P. kansuensis in the four climate scenarios were generally offset in the northward direction. 2) The most important environmental variables influencing the spread of P. kansuensis were altitude, annual precipitation, annual temperature range, precipitation in the warmest quarter and ultraviolet-B radiation seasonality (UVB-2). 3) Under RCP 2.6, the occupied habitat would be increased 0.04% by 2050 and would be increased to 0.51% by 2070. Under RCP 8.5, the average occupied habitat was predicted to increase 0.07% by 2050 and increase to 0.53% by 2070. The increase was relatively higher in the occupied habitats located in the southwestern regions (Sichuan, Xizang and Yunnan) than those in the northwestern regions (Gansu and Xinjiang).
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Affiliation(s)
- Dan Wang
- College of Resources & Environment Science, Xinjiang University, Urumqi 830046, China
| | - Bochao Cui
- College of Resources & Environment Science, Xinjiang University, Urumqi 830046, China
| | - Susu Duan
- College of Resources & Environment Science, Xinjiang University, Urumqi 830046, China
| | - Jijun Chen
- The Office for Management of Locusts and Rats, Xinjiang, China
| | - Hong Fan
- College of Resources & Environment Science, Xinjiang University, Urumqi 830046, China
| | - Binbin Lu
- College of Resources & Environment Science, Xinjiang University, Urumqi 830046, China; School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China
| | - Jianghua Zheng
- College of Resources & Environment Science, Xinjiang University, Urumqi 830046, China; Institute of Arid Ecology and Environment, Xinjiang University, Urumqi 830046, China; Key Laboratory for Oasis Ecology, Xinjiang University, Urumqi 830046, China.
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9
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van Boheemen LA, Atwater DZ, Hodgins KA. Rapid and repeated local adaptation to climate in an invasive plant. THE NEW PHYTOLOGIST 2019; 222:614-627. [PMID: 30367474 DOI: 10.1111/nph.15564] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 10/18/2018] [Indexed: 06/08/2023]
Abstract
Biological invasions provide opportunities to study evolutionary processes occurring over contemporary timescales. To explore the speed and repeatability of adaptation, we examined the divergence of life-history traits to climate, using latitude as a proxy, in the native North American and introduced European and Australian ranges of the annual plant Ambrosia artemisiifolia. We explored niche changes following introductions using climate niche dynamic models. In a common garden, we examined trait divergence by growing seeds collected across three ranges with highly distinct demographic histories. Heterozygosity-fitness associations were used to explore the effect of invasion history on potential success. We accounted for nonadaptive population differentiation using 11 598 single nucleotide polymorphisms. We revealed a centroid shift to warmer, wetter climates in the introduced ranges. We identified repeated latitudinal divergence in life-history traits, with European and Australian populations positioned at either end of the native clines. Our data indicate rapid and repeated adaptation to local climates despite the recent introductions and a bottleneck limiting genetic variation in Australia. Centroid shifts in the introduced ranges suggest adaptation to more productive environments, potentially contributing to trait divergence between the ranges.
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Affiliation(s)
- Lotte A van Boheemen
- School of Biological Sciences, Monash University, Clayton, Vic., 3800, Australia
| | - Daniel Z Atwater
- Department of Biology, Earlham College, Richmond, IN, 47374, USA
| | - Kathryn A Hodgins
- School of Biological Sciences, Monash University, Clayton, Vic., 3800, Australia
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10
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Lemke A, Kowarik I, Lippe M. How traffic facilitates population expansion of invasive species along roads: The case of common ragweed in Germany. J Appl Ecol 2018. [DOI: 10.1111/1365-2664.13287] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andreas Lemke
- Department of EcologyEcosystem Science/Plant EcologyTechnische Universität Berlin Berlin Germany
- Berlin‐Brandenburg Institute of Advanced Biodiversity Research (BBIB) Berlin Germany
| | - Ingo Kowarik
- Department of EcologyEcosystem Science/Plant EcologyTechnische Universität Berlin Berlin Germany
- Berlin‐Brandenburg Institute of Advanced Biodiversity Research (BBIB) Berlin Germany
| | - Moritz Lippe
- Department of EcologyEcosystem Science/Plant EcologyTechnische Universität Berlin Berlin Germany
- Berlin‐Brandenburg Institute of Advanced Biodiversity Research (BBIB) Berlin Germany
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11
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Chen KW, Marusciac L, Tamas PT, Valenta R, Panaitescu C. Ragweed Pollen Allergy: Burden, Characteristics, and Management of an Imported Allergen Source in Europe. Int Arch Allergy Immunol 2018; 176:163-180. [PMID: 29788026 DOI: 10.1159/000487997] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 02/22/2018] [Indexed: 12/30/2022] Open
Abstract
Ambrosia artemisiifolia, also known as common or short ragweed, is an invasive annual flowering herbaceous plant that has its origin in North America. Nowadays, ragweed can be found in many areas worldwide. Ragweed pollen is known for its high potential to cause type I allergic reactions in late summer and autumn and represents a major health problem in America and several countries in Europe. Climate change and urbanization, as well as long distance transport capacity, enhance the spread of ragweed pollen. Therefore ragweed is becoming domestic in non-invaded areas which in turn will increase the sensitization rate. So far 11 ragweed allergens have been described and, according to IgE reactivity, Amb a 1 and Amb a 11 seem to be major allergens. Sensitization rates of the other allergens vary between 10 and 50%. Most of the allergens have already been recombinantly produced, but most of them have not been characterized regarding their allergenic activity, therefore no conclusion on the clinical relevance of all the allergens can be made, which is important and necessary for an accurate diagnosis. Pharmacotherapy is the most common treatment for ragweed pollen allergy but fails to impact on the course of allergy. Allergen-specific immunotherapy (AIT) is the only causative and disease-modifying treatment of allergy with long-lasting effects, but currently it is based on the administration of ragweed pollen extract or Amb a 1 only. In order to improve ragweed pollen AIT, new strategies are required with higher efficacy and safety.
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Affiliation(s)
- Kuan-Wei Chen
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, Timisoara, Romania.,Division of Immunopathology, Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Laura Marusciac
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, Timisoara, Romania.,Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Paul Tudor Tamas
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, Timisoara, Romania.,Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Rudolf Valenta
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Carmen Panaitescu
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, Timisoara, Romania.,Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
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12
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Kralemann LEM, Scalone R, Andersson L, Hennig L. North European invasion by common ragweed is associated with early flowering and dominant changes in FT/TFL1 expression. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:2647-2658. [PMID: 29547904 PMCID: PMC5920306 DOI: 10.1093/jxb/ery100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 03/08/2018] [Indexed: 05/22/2023]
Abstract
During the last two centuries, the North American common ragweed (Ambrosia artemisiifolia L.) invaded a large part of the globe. Local adaptation of this species was revealed by a common garden experiment, demonstrating that the distribution of the species in Europe could extend considerably to the North. Our study compares two populations of common ragweed (one from the native range and one from the invaded range) that differ in flowering time in the wild: the invasive population flowers earlier than the native population under non-inductive long-day photoperiods. Experiments conducted in controlled environments established that the two populations differ in their flowering time even under inductive short-day photoperiods, suggesting a change in autonomous flowering control. Genetic analysis revealed that early flowering is dominantly inherited and accompanied by the increased expression of the floral activator AaFTL1 and decreased expression of the floral repressor AaFTL2. Early flowering is also accompanied by reduced reproductive output, which is evolutionarily disadvantageous under long vegetation periods. In contrast, under short vegetation periods, only early-flowering plants can produce any viable seeds, making the higher seed set of late-flowering plants irrelevant. Thus, earlier flowering appears to be a specific adaptation to the higher latitudes of northern Europe.
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Affiliation(s)
- Lejon E M Kralemann
- Department of Plant Biology and Linnean Center for Plant Biology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Romain Scalone
- Department of Crop Production Ecology, Uppsala Ecology Center, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Lars Andersson
- Department of Crop Production Ecology, Uppsala Ecology Center, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Lars Hennig
- Department of Plant Biology and Linnean Center for Plant Biology, Swedish University of Agricultural Sciences, Uppsala, Sweden
- Correspondence:
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13
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Chapman DS, Scalone R, Štefanić E, Bullock JM. Mechanistic species distribution modeling reveals a niche shift during invasion. Ecology 2017; 98:1671-1680. [PMID: 28369815 DOI: 10.1002/ecy.1835] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 01/10/2017] [Accepted: 03/13/2017] [Indexed: 11/08/2022]
Abstract
Niche shifts of nonnative plants can occur when they colonize novel climatic conditions. However, the mechanistic basis for niche shifts during invasion is poorly understood and has rarely been captured within species distribution models. We quantified the consequence of between-population variation in phenology for invasion of common ragweed (Ambrosia artemisiifolia L.) across Europe. Ragweed is of serious concern because of its harmful effects as a crop weed and because of its impact on public health as a major aeroallergen. We developed a forward mechanistic species distribution model based on responses of ragweed development rates to temperature and photoperiod. The model was parameterized and validated from the literature and by reanalyzing data from a reciprocal common garden experiment in which native and invasive populations were grown within and beyond the current invaded range. It could therefore accommodate between-population variation in the physiological requirements for flowering, and predict the potentially invaded ranges of individual populations. Northern-origin populations that were established outside the generally accepted climate envelope of the species had lower thermal requirements for bud development, suggesting local adaptation of phenology had occurred during the invasion. The model predicts that this will extend the potentially invaded range northward and increase the average suitability across Europe by 90% in the current climate and 20% in the future climate. Therefore, trait variation observed at the population scale can trigger a climatic niche shift at the biogeographic scale. For ragweed, earlier flowering phenology in established northern populations could allow the species to spread beyond its current invasive range, substantially increasing its risk to agriculture and public health. Mechanistic species distribution models offer the possibility to represent niche shifts by varying the traits and niche responses of individual populations. Ignoring such effects could substantially underestimate the extent and impact of invasions.
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Affiliation(s)
- Daniel S Chapman
- NERC Centre for Ecology & Hydrology, Bush Estate, Edinburgh, EH26 0QB, United Kingdom
| | - Romain Scalone
- Department of Crop Production Ecology, Swedish University of Agricultural Sciences, Box 7043, Uppsala, 75007, Sweden
| | - Edita Štefanić
- Faculty of Agriculture, University of Josip Juraj Strossmayer, Trg Svetog Trojstva 3, Osijek, 31000, Croatia
| | - James M Bullock
- NERC Centre for Ecology & Hydrology, Maclean Building, Benson Lane, Wallingford, OX10 8BB, United Kingdom
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