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Bradshaw WE, Fletcher MC, Holzapfel CM. Clock-talk: have we forgotten about geographic variation? J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2024; 210:649-666. [PMID: 37322375 PMCID: PMC11226528 DOI: 10.1007/s00359-023-01643-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 05/18/2023] [Accepted: 05/25/2023] [Indexed: 06/17/2023]
Abstract
Wyeomyia smithii, the pitcher-plant mosquito, has evolved from south to north and from low to high elevations in eastern North America. Along this seasonal gradient, critical photoperiod has increased while apparent involvement of the circadian clock has declined in concert with the evolutionary divergence of populations. Response to classical experiments used to test for a circadian basis of photoperiodism varies as much within and among populations of W. smithii as have been found in the majority of all other insects and mites. The micro-evolutionary processes revealed within and among populations of W. smithii, programmed by a complex underlying genetic architecture, illustrate a gateway to the macro-evolutionary divergence of biological timing among species and higher taxa in general.
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Affiliation(s)
- William E Bradshaw
- Laboratory of Evolutionary Genetics, Institute of Ecology and Evolution, University of Oregon, Eugene, OR, 97403-5289, USA.
| | - Margaret C Fletcher
- Laboratory of Evolutionary Genetics, Institute of Ecology and Evolution, University of Oregon, Eugene, OR, 97403-5289, USA
| | - Christina M Holzapfel
- Laboratory of Evolutionary Genetics, Institute of Ecology and Evolution, University of Oregon, Eugene, OR, 97403-5289, USA
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2
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Reznik SY, Dolgovskaya MY, Karpun NN, Zakharchenko VY, Saulich AK, Musolin DL. The Invasive Caucasian Populations of the Brown Marmorated Stink Bug Halyomorpha halys (Hemiptera: Heteroptera: Pentatomidae) Rapidly Adapt Their Ecophysiological Traits to the Local Environmental Conditions. INSECTS 2023; 14:insects14050424. [PMID: 37233052 DOI: 10.3390/insects14050424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/27/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023]
Abstract
The ability to rapidly adapt to new environmental conditions is a crucial prerequisite for the wide-scale invasion of pests or intentional introduction of beneficial insects. A photoperiodically induced facultative winter diapause is an important adaptation ensuring synchronization of insect development and reproduction with the local seasonal dynamics of environmental factors. We conducted a laboratory study aimed to compare photoperiodic responses of two invasive Caucasian populations of the brown marmorated stink bug Halyomorpha halys (Hemiptera: Heteroptera: Pentatomidae), which recently invaded neighboring regions with subtropical (Sukhum, Abkhazia) and temperate (Abinsk, Russia) climates. Under the temperature of 25 °C and the near-critical photoperiods of L:D = 15:9 h and 15.5:8.5 h, the population from Abinsk showed a slower pre-adult development and a stronger tendency to enter winter adult (reproductive) diapause compared to the population from Sukhum. This finding agreed with the difference between the local dynamics of the autumnal temperature decrease. Similar adaptive interpopulation differences in the patterns of diapause-inducing responses are known in other insect species but our finding is distinguished by a very short adaptation time: H. halys was first recorded in Sukhum in 2015 and in Abinsk in 2018. Thus, the differences between the compared populations might have evolved over a relatively short span of several years.
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Affiliation(s)
- Sergey Ya Reznik
- Zoological Institute of the Russian Academy of Sciences, Universitetskaya Nab. 1, 199034 Saint Petersburg, Russia
| | - Margarita Yu Dolgovskaya
- Zoological Institute of the Russian Academy of Sciences, Universitetskaya Nab. 1, 199034 Saint Petersburg, Russia
| | - Natalia N Karpun
- Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences, Yana Fabritsiusa Str. 2/28, 354002 Sochi, Russia
- Department of Forest Protection, Wood Science and Game Management, St. Petersburg State Forest Technical University, Institutskiy Per. 5, 194021 Saint Petersburg, Russia
| | - Vilena Ye Zakharchenko
- Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences, Yana Fabritsiusa Str. 2/28, 354002 Sochi, Russia
| | - Aida Kh Saulich
- Department of Entomology, Saint Petersburg State University, Universitetskaya Nab. 7-9, 199034 Saint Petersburg, Russia
| | - Dmitrii L Musolin
- European and Mediterranean Plant Protection Organization, 21 Boulevard Richard Lenoir, 75011 Paris, France
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Mogilicherla K, Roy A. Epigenetic regulations as drivers of insecticide resistance and resilience to climate change in arthropod pests. Front Genet 2023; 13:1044980. [PMID: 36685945 PMCID: PMC9853188 DOI: 10.3389/fgene.2022.1044980] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 12/19/2022] [Indexed: 01/09/2023] Open
Abstract
Arthropod pests are remarkably capable of rapidly adapting to novel forms of environmental stress, including insecticides and climate change. The dynamic interplay between epigenetics and genetics explains the largely unexplored reality underlying rapid climatic adaptation and the development of insecticide resistance in insects. Epigenetic regulation modulates gene expression by methylating DNA and acetylating histones that play an essential role in governing insecticide resistance and adaptation to climate change. This review summarises and discusses the significance of recent advances in epigenetic regulation that facilitate phenotypic plasticity in insects and their symbiotic microbes to cope with selection pressure implied by extensive insecticide applications and climate change. We also discuss how epigenetic changes are passed on to multiple generations through sexual recombination, which remains enigmatic. Finally, we explain how these epigenetic signatures can be utilized to manage insecticide resistance and pest resilience to climate change in Anthropocene.
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Bueno EM, McIlhenny CL, Chen YH. Cross-protection interactions in insect pests: Implications for pest management in a changing climate. PEST MANAGEMENT SCIENCE 2023; 79:9-20. [PMID: 36127854 PMCID: PMC10092685 DOI: 10.1002/ps.7191] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 09/07/2022] [Accepted: 09/21/2022] [Indexed: 05/20/2023]
Abstract
Agricultural insect pests display an exceptional ability to adapt quickly to natural and anthropogenic stressors. Emerging evidence suggests that frequent and varied sources of stress play an important role in driving protective physiological responses; therefore, intensively managed agroecosystems combined with climatic shifts might be an ideal crucible for stress adaptation. Cross-protection, where responses to one stressor offers protection against another type of stressor, has been well documented in many insect species, yet the molecular and epigenetic underpinnings that drive overlapping protective responses in insect pests remain unclear. In this perspective, we discuss cross-protection mechanisms and provide an argument for its potential role in increasing tolerance to a wide range of natural and anthropogenic stressors in agricultural insect pests. By drawing from existing literature on single and multiple stressor studies, we outline the processes that facilitate cross-protective interactions, including epigenetic modifications, which are understudied in insect stress responses. Finally, we discuss the implications of cross-protection for insect pest management, focusing on the consequences of cross-protection between insecticides and elevated temperatures associated with climate change. Given the multiple ways that insect pests are intensively managed in agroecosystems, we suggest that examining the role of multiple stressors can be important in understanding the wide adaptability of agricultural insect pests. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Erika M. Bueno
- Department of Plant and Soil ScienceUniversity of VermontBurlingtonVTUSA
| | - Casey L. McIlhenny
- Department of Plant and Soil ScienceUniversity of VermontBurlingtonVTUSA
| | - Yolanda H. Chen
- Department of Plant and Soil ScienceUniversity of VermontBurlingtonVTUSA
- Gund Institute for EnvironmentUniversity of VermontBurlingtonVTUSA
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5
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Özkan Koca A, Berkcan SB, Laçın Alas B, Kandemir İ. Population structure and pattern of geographic differentiation of Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae) in Turkey. PEST MANAGEMENT SCIENCE 2022; 78:3804-3814. [PMID: 34596319 DOI: 10.1002/ps.6663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 09/07/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND The Colorado potato beetle (CPB) is the most harmful pest of potato in potato cultivation regions globally. Although it is an economically important agricultural pest, the population structure and colonization route of this species in Turkey are uncertain. We used microsatellite and mitochondrial DNA (mtDNA) markers to obtain information about the population source, structure and bio-invasion route of CPB populations in Turkey. RESULTS The common single mtDNA haplotype in European CPB populations was obtained in all Turkish CPB populations based on mtDNA data analysis. However, microsatellites revealed a low level of genetic variation in CPB populations. The results of microsatellite analysis [factorial correspondence analysis (FCA), Bayesian analysis of genetic population structure (BAPS), unweighted pair group method with arithmetic mean (UPGMA) dendrogram, F-statistics and Nei's distances] indicated three groups for invasive CPB: Thrace-Marmara and Aegean; Black Sea, Central Anatolia and Mediterranean; Northeastern Anatolia. Region-specific alleles have been identified in regions, where commercial potato cultivation and insecticide use are intensive. CONCLUSION The detection of a single fixed European haplotype in all Turkish populations has proved that CPB in Turkey originated from Europe as a result of a founder event occurred in European populations. Low genetic variation was due to the short time period since the spread of CPB from America to Europe. The highest number of private alleles were found in the top commercial potato cultivation region-Central Anatolia from where the CPB populations spread to other parts of Turkey. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Ayça Özkan Koca
- Department of Gastronomy and Culinary Arts, Faculty of Fine Arts, Maltepe University, Maltepe-Istanbul, Turkey
| | - Salih B Berkcan
- Department of Biology, Faculty of Science, Ankara University, Beşevler-Ankara, Turkey
| | - Burcu Laçın Alas
- Department of Biology, Faculty of Science, Ankara University, Beşevler-Ankara, Turkey
- Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, Madison, WI, USA
| | - İrfan Kandemir
- Department of Biology, Faculty of Science, Ankara University, Beşevler-Ankara, Turkey
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Tian Z, Guo S, Li JX, Zhu F, Liu W, Wang XP. Juvenile hormone biosynthetic genes are critical for regulating reproductive diapause in the cabbage beetle. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2021; 139:103654. [PMID: 34571141 DOI: 10.1016/j.ibmb.2021.103654] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 08/19/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
In insects, the juvenile hormone (JH) biosynthetic pathway regulates the in vivo JH titer. Thus, its downregulation potentially contributes to the lowering of JH titers typically observed in insects undergoing reproductive diapause, a developmental arrest at the adult stage. However, no systematic evidence has yet been presented to demonstrate the physiological and genetic roles of JH biosynthetic genes in reproductive diapause. In this work, we performed RNA interference (RNAi)-based reverse genetic analyses by targeting JH biosynthetic genes, followed by analysis of the reproductive diapause traits in Colaphellus bowringi, an economically important cabbage beetle. We identified a total of 22 genes encoding homologues of enzymes involved in the mevalonate pathway and the JH branch of JH biosynthesis in C. bowringi. Among these, 18 genes showed significant downregulation of their expression in the long day-induced diapausing females, compared to the short day-induced reproductive females. RNAi knockdown of almost any one of the 18 genes in reproductive females reduced the expression of the JH-responsive gene, Krüppel homolog1 (Kr-h1), indicating a lowered circulating JH. Most importantly, depleting transcripts of 3-hydroxy-3-methylglutaryl-CoA reductase 2 (HMGR2), farnesyl-pyrophosphate synthase 1 (FPPS1) and juvenile hormone acid methyltransferase 1 (JHAMT1) induced diapause-associated traits, including immature and inactive ovaries, large accumulations of lipids and adult burrowing behavior. Meanwhile, genes related to ovarian development, lipid accumulation and stress response showed expression patterns like those of diapausing females. RNAi-mediated diapause phenotypes could be reversed to reproductive phenotypes by application of methoprene, a JH receptor agonist. These results suggest that photoperiodic reproductive diapause in C. bowringi is triggered by transcriptional suppression of JH biosynthetic genes, with HMGR2, FPPS1 and JHAMT1 playing a critical role in this process. This work provides sufficient evidence to reveal the physiological roles of JH biosynthetic genes in reproductive diapause.
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Affiliation(s)
- Zhong Tian
- Hubei Key Laboratory of Resources Utilization and Sustainable Pest Management, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shuang Guo
- Hubei Key Laboratory of Resources Utilization and Sustainable Pest Management, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jia-Xu Li
- Hubei Key Laboratory of Resources Utilization and Sustainable Pest Management, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Fen Zhu
- Hubei Key Laboratory of Resources Utilization and Sustainable Pest Management, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Wen Liu
- Hubei Key Laboratory of Resources Utilization and Sustainable Pest Management, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xiao-Ping Wang
- Hubei Key Laboratory of Resources Utilization and Sustainable Pest Management, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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7
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Margus A, Piiroinen S, Lehmann P, Grapputo A, Gilbert L, Chen YH, Lindström L. Sequence variation and regulatory variation in acetylcholinesterase genes contribute to insecticide resistance in different populations of Leptinotarsa decemlineata. Ecol Evol 2021; 11:15995-16005. [PMID: 34824806 PMCID: PMC8601895 DOI: 10.1002/ece3.8269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 09/26/2021] [Indexed: 01/02/2023] Open
Abstract
Although insect herbivores are known to evolve resistance to insecticides through multiple genetic mechanisms, resistance in individual species has been assumed to follow the same mechanism. While both mutations in the target site insensitivity and increased amplification are known to contribute to insecticide resistance, little is known about the degree to which geographic populations of the same species differ at the target site in a response to insecticides. We tested structural (e.g., mutation profiles) and regulatory (e.g., the gene expression of Ldace1 and Ldace2, AChE activity) differences between two populations (Vermont, USA and Belchow, Poland) of the Colorado potato beetle, Leptinotarsa decemlineata in their resistance to two commonly used groups of insecticides, organophosphates, and carbamates. We established that Vermont beetles were more resistant to azinphos-methyl and carbaryl insecticides than Belchow beetles, despite a similar frequency of resistance-associated alleles (i.e., S291G) in the Ldace2 gene. However, the Vermont population had two additional amino acid replacements (G192S and F402Y) in the Ldace1 gene, which were absent in the Belchow population. Moreover, the Vermont population showed higher expression of Ldace1 and was less sensitive to AChE inhibition by azinphos-methyl oxon than the Belchow population. Therefore, the two populations have evolved different genetic mechanisms to adapt to organophosphate and carbamate insecticides.
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Affiliation(s)
- Aigi Margus
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyväskyläFinland
| | - Saija Piiroinen
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyväskyläFinland
| | - Philipp Lehmann
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyväskyläFinland
- Department of ZoologyStockholm UniversityStockholmSweden
- Zoological Institute and MuseumGreifswald UniversityGreifswaldGermany
| | | | | | - Yolanda H. Chen
- Department of Plant and Soil ScienceUniversity of VermontBurlingtonVermontUSA
| | - Leena Lindström
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyväskyläFinland
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Skendžić S, Zovko M, Pajač Živković I, Lešić V, Lemić D. Effect of Climate Change on Introduced and Native Agricultural Invasive Insect Pests in Europe. INSECTS 2021; 12:insects12110985. [PMID: 34821786 PMCID: PMC8619401 DOI: 10.3390/insects12110985] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 10/28/2021] [Indexed: 11/29/2022]
Abstract
Simple Summary Invasive insects, along with climate change, are among the two most important environmental problems facing the world today. They pose a threat to many ecosystems worldwide, especially agriculture. As a result, there is a serious risk of economic losses to crops and a challenge to human food security. The aim of this review is to examine the relationship between climate change and the process of invasion of economically important insects in Europe. In recent decades, globalization has led to an increase in the worldwide movement of people and goods, resulting in an increase in the number of insects introduced into areas outside their original range. The harmful effects of invasive insects may be exacerbated by climate change as barriers to their successful establishment and dispersal decrease. To limit economic and environmental damage, it is important to understand the biotic and abiotic factors that influence the process of insect invasion in the context of climate change. We highlight the main biotic factors that influence the biological invasion process. Finally, we present the adaptive management strategies for invasion of non-native insect pests’ invasion that include prevention, eradication and assessment of biological invasion in the form of predictive modelling. Abstract Climate change and invasive species are major environmental issues facing the world today. They represent the major threats for various types of ecosystems worldwide, mainly managed ecosystems such as agriculture. This study aims to examine the link between climate change and the biological invasion of insect pest species. Increased international trade systems and human mobility have led to increasing introduction rates of invasive insects while climate change could decrease barriers for their establishment and distribution. To mitigate environmental and economic damage it is important to understand the biotic and abiotic factors affecting the process of invasion (transport, introduction, establishment, and dispersal) in terms of climate change. We highlight the major biotic factors affecting the biological invasion process: diet breadth, phenological plasticity, and lifecycle strategies. Finally, we present alien insect pest invasion management that includes prevention, eradication, and assessment of the biological invasion in the form of modelling prediction tools.
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Affiliation(s)
- Sandra Skendžić
- Department of Agricultural Zoology, Faculty of Agriculture, University of Zagreb, Svetosimunska 25, 10000 Zagreb, Croatia; (I.P.Ž.); (D.L.)
- Department of Soil Amelioration, Faculty of Agriculture, University of Zagreb, Svetosimunska 25, 10000 Zagreb, Croatia;
- Correspondence: ; Tel.: +385-998563990
| | - Monika Zovko
- Department of Soil Amelioration, Faculty of Agriculture, University of Zagreb, Svetosimunska 25, 10000 Zagreb, Croatia;
| | - Ivana Pajač Živković
- Department of Agricultural Zoology, Faculty of Agriculture, University of Zagreb, Svetosimunska 25, 10000 Zagreb, Croatia; (I.P.Ž.); (D.L.)
| | - Vinko Lešić
- Innovation Centre Nikola Tesla, Unska 3, 10000 Zagreb, Croatia;
| | - Darija Lemić
- Department of Agricultural Zoology, Faculty of Agriculture, University of Zagreb, Svetosimunska 25, 10000 Zagreb, Croatia; (I.P.Ž.); (D.L.)
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Lebenzon JE, Torson AS, Sinclair BJ. Diapause differentially modulates the transcriptomes of fat body and flight muscle in the Colorado potato beetle. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2021; 40:100906. [PMID: 34509173 DOI: 10.1016/j.cbd.2021.100906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 08/05/2021] [Accepted: 08/21/2021] [Indexed: 12/21/2022]
Abstract
Many temperate insects, such as the Colorado potato beetle, enter diapause in winter, during which they arrest their development, suppress their metabolic rate and have high stress tolerance. Diapause phenotypes can be transcriptionally regulated, however many studies to date report only whole animal gene expression rather than tissue-specific processes during diapause. We used RNA-seq to measure gene expression in fat body and flight muscle of diapausing and non-diapausing beetles. We used differential expression and GO enrichment analyses to evaluate longstanding hypotheses about the mechanisms that drive arrested development, changes in energy metabolism, and increased stress tolerance during diapause. We found evidence of G2/M cell cycle arrest, juvenile hormone catabolism, increased antioxidant metabolism, epigenetic modification, transposable element regulation, and cytoskeletal remodeling in both the fat body and flight muscle of diapausing beetles. Beetles differentially modulated the fat body and flight muscle transcriptomes during diapause with fat body playing a larger role in the hypoxia response and immunity, whereas flight muscle had higher abundance of transcripts related to the chaperone response and proteostasis. Our transcriptome provides evidence for distinct roles and responses of fat body and flight muscle during diapause in the Colorado potato beetle, and we provide testable hypotheses for biological processes that appear to drive diapause phenotypes in insects.
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Affiliation(s)
- Jacqueline E Lebenzon
- Department of Biology, University of Western Ontario, 1151 Richmond Street N, London, ON N6A 3K7, Canada.
| | - Alex S Torson
- Department of Biology, University of Western Ontario, 1151 Richmond Street N, London, ON N6A 3K7, Canada.
| | - Brent J Sinclair
- Department of Biology, University of Western Ontario, 1151 Richmond Street N, London, ON N6A 3K7, Canada.
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10
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Duration of Low Temperature Exposure Affects Egg Hatching of the Colorado Potato Beetle and Emergence of Overwintering Adults. INSECTS 2021; 12:insects12070609. [PMID: 34357269 PMCID: PMC8306272 DOI: 10.3390/insects12070609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/20/2021] [Accepted: 06/29/2021] [Indexed: 12/01/2022]
Abstract
Simple Summary The Colorado potato beetle is a pest of Solanaceae in China, more than 30 species of Solanaceae as host plants of the Colorado potato beetle, and this beetle can cause yield losses to potato farms. Temperature is one of the main factors that affect the growth and survival of insects. In recent years, due to global climate change, sudden drops in short-term temperatures are also frequent, which will affect insects. This paper studies the influence of short-term low temperature on the Colorado potato beetle. In laboratory experiments, we evaluated the effect of short-term low temperature on the Colorado potato beetle eggs, and the emerged date, the number of Colorado potato beetles, were analyzed in combination with the low temperature conditions. Our results show that low temperature had adverse effects on the development of Colorado potato beetle eggs and the emerged of adults Colorado potato beetles, and the longer the low temperature treatment time, the greater the impact. Abstract The Colorado potato beetle is a serious pest of Solanaceae in China. In early summer, cold spells in later spring may occur for brief periods in the field environmental conditions, and temperatures often deviate far below the normal temperature for short periods, such as sudden short-term low temperature, may affect the development of Colorado potato beetle eggs. This paper studies the effects of low temperature stress at 8 °C for 0 d, 1 d, 3 d, 5 d, 7 d, and 10 d on the development of Colorado potato beetle eggs. Our results show that egg survival is significantly affected by short-term low temperature exposure. The percentage of eggs hatched is significantly affected by different treatment times (p = 0.000)—the percentage of eggs hatched decreases with increased treatment time, and Colorado potato beetles will extend the wintering time of their soil to resist the effects of lower temperatures. Thus, exposure of Colorado potato beetles to a short-term low temperature affects their emergence and population growth; this study could provide information for the occurrence, monitoring, and early warning of Colorado potato beetle during short-term temperature.
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11
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Brevik K, Bueno EM, McKay S, Schoville SD, Chen YH. Insecticide exposure affects intergenerational patterns of DNA methylation in the Colorado potato beetle, Leptinotarsa decemlineata. Evol Appl 2021; 14:746-757. [PMID: 33767749 PMCID: PMC7980262 DOI: 10.1111/eva.13153] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/13/2020] [Accepted: 10/15/2020] [Indexed: 12/23/2022] Open
Abstract
Insecticide use is pervasive as a selective force in modern agroecosystems. Insect herbivores exposed to these insecticides have been able to rapidly evolve resistance to them, but how they are able to do so is poorly understood. One possible but largely unexplored explanation is that exposure to sublethal doses of insecticides may alter epigenetic patterns that are heritable. For instance, epigenetic mechanisms, such as DNA methylation that modifies gene expression without changing the underlying genetic code, may facilitate the emergence of resistant phenotypes in complex ways. We assessed the effects of sublethal insecticide exposure, with the neonicotinoid imidacloprid, on DNA methylation in the Colorado potato beetle, Leptinotarsa decemlineata, examining both global changes in DNA methylation and specific changes found within genes and transposable elements. We found that exposure to insecticide led to decreases in global DNA methylation for parent and F2 generations and that many of the sites of changes in methylation are found within genes associated with insecticide resistance, such as cytochrome P450s, or within transposable elements. Exposure to sublethal doses of insecticide caused heritable changes in DNA methylation in an agricultural insect herbivore. Therefore, epigenetics may play a role in insecticide resistance, highlighting a fundamental mechanism of evolution while informing how we might better coexist with insect species in agroecosystems.
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Affiliation(s)
- Kristian Brevik
- Department of Plant and Soil ScienceUniversity of VermontBurlingtonVTUSA
| | - Erika M. Bueno
- Department of Plant and Soil ScienceUniversity of VermontBurlingtonVTUSA
| | - Stephanie McKay
- Department of Animal and Veterinary SciencesUniversity of VermontBurlingtonVTUSA
| | | | - Yolanda H. Chen
- Department of Plant and Soil ScienceUniversity of VermontBurlingtonVTUSA
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12
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Lehmann P, Westberg M, Tang P, Lindström L, Käkelä R. The Diapause Lipidomes of Three Closely Related Beetle Species Reveal Mechanisms for Tolerating Energetic and Cold Stress in High-Latitude Seasonal Environments. Front Physiol 2020; 11:576617. [PMID: 33101058 PMCID: PMC7546402 DOI: 10.3389/fphys.2020.576617] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 09/01/2020] [Indexed: 11/13/2022] Open
Abstract
During winter insects face energetic stress driven by lack of food, and thermal stress due to sub-optimal and even lethal temperatures. To survive, most insects living in seasonal environments such as high latitudes, enter diapause, a deep resting stage characterized by a cessation of development, metabolic suppression and increased stress tolerance. The current study explores physiological adaptations related to diapause in three beetle species at high latitudes in Europe. From an ecological perspective, the comparison is interesting since one species (Leptinotarsa decemlineata) is an invasive pest that has recently expanded its range into northern Europe, where a retardation in range expansion is seen. By comparing its physiological toolkit to that of two closely related native beetles (Agelastica alni and Chrysolina polita) with similar overwintering ecology and collected from similar latitude, we can study if harsh winters might be constraining further expansion. Our results suggest all species suppress metabolism during diapause and build large lipid stores before diapause, which then are used sparingly. In all species diapause is associated with temporal shifts in storage and membrane lipid profiles, mostly in accordance with the homeoviscous adaptation hypothesis, stating that low temperatures necessitate acclimation responses that increase fluidity of storage lipids, allowing their enzymatic hydrolysis, and ensure integral protein functions. Overall, the two native species had similar lipidomic profiles when compared to the invasive species, but all species showed specific shifts in their lipid profiles after entering diapause. Taken together, all three species show adaptations that improve energy saving and storage and membrane lipid fluidity during overwintering diapause. While the three species differed in the specific strategies used to increase lipid viscosity, the two native beetle species showed a more canalized lipidomic response, than the recent invader. Since close relatives with similar winter ecology can have different winter ecophysiology, extrapolations among species should be done with care. Still, range expansion of the recent invader into high latitude habitats might indeed be retarded by lack of physiological tools to manage especially thermal stress during winter, but conversely species adapted to long cold winters may face these stressors as a consequence of ongoing climate warming.
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Affiliation(s)
- Philipp Lehmann
- Department of Zoology, Stockholm University, Stockholm, Sweden
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
| | - Melissa Westberg
- Molecular and Integrative Biosciences Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Patrik Tang
- Molecular and Integrative Biosciences Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - Leena Lindström
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
| | - Reijo Käkelä
- Molecular and Integrative Biosciences Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Helsinki University Lipidomics Unit, Helsinki Institute for Life Science and Biocenter Finland, Helsinki, Finland
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13
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Margus A, Rainio M, Lindström L. Can Indirect Herbicide Exposure Modify the Response of the Colorado Potato Beetle to an Organophosphate Insecticide? JOURNAL OF ECONOMIC ENTOMOLOGY 2019; 112:2316-2323. [PMID: 31081887 DOI: 10.1093/jee/toz115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Indexed: 06/09/2023]
Abstract
Organisms live in complex multivariate environments. In agroecosystems, this complexity is often human-induced as pest individuals can be exposed to many xenobiotics simultaneously. Predicting the effects of multiple stressors can be problematic, as two or more stressors can have interactive effects. Our objective was to investigate whether indirect glyphosate-based herbicide (GBH) exposure of the host plant has interactive effects in combination with an insecticide (azinphos-methyl) on an invasive pest Colorado potato beetle (Leptinotarsa decemlineata Say). We tested the effects of GBH and insecticide on the survival, insecticide target genes expression (acetylcholinesterase genes) and oxidative status biomarkers (glutathione S-transferase [GST], glucose-6-phosphate dehydrogenase [G6PDH], glutathione reductase homolog [GR], glutathione peroxidase homolog [GPx], total glutathione [totGSH], glutathione reduced-oxidized [GSH: GSSG], catalase [CAT], superoxide dismutase [SOD], lipid hydroperoxides). We found that exposure to indirect GBH has no single or interactive effects in combination with the insecticide on larval survival. However, prior exposure to GBH inhibits Ldace1 gene expression by 0.55-fold, which is the target site for the organophosphate and carbamate insecticides. This difference disappears when individuals are exposed to both GBH and insecticide, suggesting an antagonistic effect. On the other hand, oxidative status biomarker scores (PCAs of GPx, GR, and CAT) were decreased when exposed to both stressors, indicating a synergistic effect. Overall, we found that indirect GBH exposure can have both antagonistic and synergistic effects in combination with an insecticide, which should be considered when aiming for an ecologically relevant risk assessment of multiple human-induced stressors.
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Affiliation(s)
- Aigi Margus
- Centre of Excellence in Biological Interactions Research, Department of Biological and Environmental Science, University of Jyväskylä, FI, Finland
| | - Miia Rainio
- Department of Biology, University of Turku, FI, Finland
| | - Leena Lindström
- Centre of Excellence in Biological Interactions Research, Department of Biological and Environmental Science, University of Jyväskylä, FI, Finland
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14
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Zeender V, Roy J, Wegmann A, Schäfer MA, Gourgoulianni N, Blanckenhorn WU, Rohner PT. Comparative reproductive dormancy differentiation in European black scavenger flies (Diptera: Sepsidae). Oecologia 2019; 189:905-917. [PMID: 30877577 DOI: 10.1007/s00442-019-04378-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 03/04/2019] [Indexed: 10/27/2022]
Abstract
Seasonality is a key environmental factor that regularly promotes life history adaptation. Insects invading cold-temperate climates need to overwinter in a dormant state. We compared the role of temperature and photoperiod in dormancy induction in the laboratory, as well as winter survival and reproduction in the field and the laboratory, of 5 widespread European dung fly species (Diptera: Sepsidae) to investigate their extent of ecological differentiation and thermal adaptation. Unexpectedly, cold temperature is the primary environmental factor inducing winter dormancy, with short photoperiod playing an additional role mainly in species common at high altitudes and latitudes (Sepsis cynipsea, neocynipsea, fulgens), but not in those species also thriving in southern Europe (thoracica, punctum). All species hibernate as adults rather than juveniles. S. thoracica had very low adult winter survivorship under both (benign) laboratory and (harsh) field conditions, suggesting flexible quiescence rather than genetically fixed winter diapause, restricting their distribution towards the pole. All other species appear well suited for surviving cold, Nordic winters. Females born early in the season reproduce before winter while late-born females reproduce after winter, fulgens transitioning earliest before winter and thoracica and punctum latest; a bet-hedging strategy of reproduction during both seasons occurs rarely but is possible physiologically. Fertility patterns indicate that females can store sperm over winter. Winter dormancy induction mechanisms of European sepsids are congruent with their geographic distribution, co-defining their thermal niches. Flexible adult winter quiescence appears the easiest route for insects spreading towards the poles to evolve the necessary overwinter survival.
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Affiliation(s)
- Valérian Zeender
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Jeannine Roy
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Alexandra Wegmann
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Martin A Schäfer
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Natalia Gourgoulianni
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Wolf U Blanckenhorn
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland.
| | - Patrick T Rohner
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
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15
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Schoville SD, Chen YH, Andersson MN, Benoit JB, Bhandari A, Bowsher JH, Brevik K, Cappelle K, Chen MJM, Childers AK, Childers C, Christiaens O, Clements J, Didion EM, Elpidina EN, Engsontia P, Friedrich M, García-Robles I, Gibbs RA, Goswami C, Grapputo A, Gruden K, Grynberg M, Henrissat B, Jennings EC, Jones JW, Kalsi M, Khan SA, Kumar A, Li F, Lombard V, Ma X, Martynov A, Miller NJ, Mitchell RF, Munoz-Torres M, Muszewska A, Oppert B, Palli SR, Panfilio KA, Pauchet Y, Perkin LC, Petek M, Poelchau MF, Record É, Rinehart JP, Robertson HM, Rosendale AJ, Ruiz-Arroyo VM, Smagghe G, Szendrei Z, Thomas GWC, Torson AS, Vargas Jentzsch IM, Weirauch MT, Yates AD, Yocum GD, Yoon JS, Richards S. A model species for agricultural pest genomics: the genome of the Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae). Sci Rep 2018; 8:1931. [PMID: 29386578 PMCID: PMC5792627 DOI: 10.1038/s41598-018-20154-1] [Citation(s) in RCA: 148] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 01/13/2018] [Indexed: 01/04/2023] Open
Abstract
The Colorado potato beetle is one of the most challenging agricultural pests to manage. It has shown a spectacular ability to adapt to a variety of solanaceaeous plants and variable climates during its global invasion, and, notably, to rapidly evolve insecticide resistance. To examine evidence of rapid evolutionary change, and to understand the genetic basis of herbivory and insecticide resistance, we tested for structural and functional genomic changes relative to other arthropod species using genome sequencing, transcriptomics, and community annotation. Two factors that might facilitate rapid evolutionary change include transposable elements, which comprise at least 17% of the genome and are rapidly evolving compared to other Coleoptera, and high levels of nucleotide diversity in rapidly growing pest populations. Adaptations to plant feeding are evident in gene expansions and differential expression of digestive enzymes in gut tissues, as well as expansions of gustatory receptors for bitter tasting. Surprisingly, the suite of genes involved in insecticide resistance is similar to other beetles. Finally, duplications in the RNAi pathway might explain why Leptinotarsa decemlineata has high sensitivity to dsRNA. The L. decemlineata genome provides opportunities to investigate a broad range of phenotypes and to develop sustainable methods to control this widely successful pest.
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Affiliation(s)
- Sean D Schoville
- Department of Entomology, University of Wisconsin-Madison, Madison, USA.
| | - Yolanda H Chen
- Department of Plant and Soil Sciences, University of Vermont, Burlington, USA
| | | | - Joshua B Benoit
- Department of Biological Sciences, University of Cincinnati, Cincinnati, USA
| | - Anita Bhandari
- Department of Molecular Physiology, Christian-Albrechts-University at Kiel, Kiel, Germany
| | - Julia H Bowsher
- Department of Biological Sciences, North Dakota State University, Fargo, USA
| | - Kristian Brevik
- Department of Plant and Soil Sciences, University of Vermont, Burlington, USA
| | - Kaat Cappelle
- Department of Crop Protection, Ghent University, Ghent, Belgium
| | - Mei-Ju M Chen
- USDA-ARS National Agricultural Library, Beltsville, MD, USA
| | - Anna K Childers
- USDA-ARS Bee Research Lab, Beltsville, MD, USA
- USDA-ARS Insect Genetics and Biochemistry Research Unit, Fargo, ND, USA
| | | | | | - Justin Clements
- Department of Entomology, University of Wisconsin-Madison, Madison, USA
| | - Elise M Didion
- Department of Biological Sciences, University of Cincinnati, Cincinnati, USA
| | - Elena N Elpidina
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moskva, Russia
| | - Patamarerk Engsontia
- Department of Biology, Faculty of Science, Prince of Songkla University, Amphoe Hat Yai, Thailand
| | - Markus Friedrich
- Department of Biological Sciences, Wayne State University, Detroit, USA
| | | | - Richard A Gibbs
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Chandan Goswami
- National Institute of Science Education and Research, Bhubaneswar, India
| | | | - Kristina Gruden
- Department of Biotechnology and Systems Biology, National Institute of Biology, Ljubljana, Slovenia
| | - Marcin Grynberg
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Bernard Henrissat
- Architecture et Fonction des Macromolécules Biologiques, CNRS, Aix-Marseille Université, 13288, Marseille, France
- INRA, USC 1408 AFMB, F-13288, Marseille, France
- Department of Biological Sciences, King Abdulaziz University, King Abdulaziz, Saudi Arabia
| | - Emily C Jennings
- Department of Biological Sciences, University of Cincinnati, Cincinnati, USA
| | - Jeffery W Jones
- Department of Biological Sciences, Wayne State University, Detroit, USA
| | - Megha Kalsi
- Department of Entomology, University of Kentucky, Lexington, USA
| | - Sher A Khan
- Department of Entomology, Texas A&M University, College Station, USA
| | - Abhishek Kumar
- Department of Genetics & Molecular Biology in Botany, Christian-Albrechts-University at Kiel, Kiel, Germany
- Division of Molecular Genetic Epidemiology, German Cancer Research Center, Heidelberg, Germany
| | - Fei Li
- Department of Entomology, Nanjing Agricultural University, Nanjing, China
| | - Vincent Lombard
- Architecture et Fonction des Macromolécules Biologiques, CNRS, Aix-Marseille Université, 13288, Marseille, France
- INRA, USC 1408 AFMB, F-13288, Marseille, France
| | - Xingzhou Ma
- Department of Entomology, Nanjing Agricultural University, Nanjing, China
| | - Alexander Martynov
- Center for Data-Intensive Biomedicine and Biotechnology, Skolkovo Institute of Science and Technology, Moscow, Russia
| | - Nicholas J Miller
- Department of Biology, Illinois Institute of Technology, Chicago, USA
| | - Robert F Mitchell
- Department of Biology, University of Wisconsin-Oshkosh, Oshkosh, USA
| | - Monica Munoz-Torres
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, USA
| | - Anna Muszewska
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Brenda Oppert
- USDA-ARS Center for Grain and Animal Health Research, New York, USA
| | | | - Kristen A Panfilio
- Institute for Developmental Biology, University of Cologne, Köln, Germany
- School of Life Sciences, University of Warwick, Gibbet Hill Campus, England, UK
| | - Yannick Pauchet
- Department of Entomology, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Lindsey C Perkin
- USDA-ARS Center for Grain and Animal Health Research, New York, USA
| | - Marko Petek
- Department of Biotechnology and Systems Biology, National Institute of Biology, Ljubljana, Slovenia
| | | | - Éric Record
- INRA, Aix-Marseille Université, UMR1163, Biodiversité et Biotechnologie Fongiques, Marseille, France
| | - Joseph P Rinehart
- USDA-ARS Insect Genetics and Biochemistry Research Unit, Fargo, ND, USA
| | - Hugh M Robertson
- Department of Entomology, University of Illinois at Urbana-Champaign, Champaign, IL, USA
| | - Andrew J Rosendale
- Department of Biological Sciences, University of Cincinnati, Cincinnati, USA
| | | | - Guy Smagghe
- Department of Crop Protection, Ghent University, Ghent, Belgium
| | - Zsofia Szendrei
- Department of Entomology, Michigan State University, East Lansing, USA
| | - Gregg W C Thomas
- Department of Biology and School of Informatics and Computing, Indiana University, Bloomington, USA
| | - Alex S Torson
- Department of Biological Sciences, North Dakota State University, Fargo, USA
| | | | - Matthew T Weirauch
- Center for Autoimmune Genomics and Etiology, Division of Biomedical Informatics and Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, USA
| | - Ashley D Yates
- Department of Entomology, The Ohio State University, Columbus, USA
- Center for Applied Plant Sciences, The Ohio State University, Columbus, USA
| | - George D Yocum
- USDA-ARS Insect Genetics and Biochemistry Research Unit, Fargo, ND, USA
| | - June-Sun Yoon
- Department of Entomology, University of Kentucky, Lexington, USA
| | - Stephen Richards
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
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16
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Facon B, Estoup A, Hufbauer RA, Foucaud J, Tayeh A. Mating Status Influences Cold Tolerance and Subsequent Reproduction in the Invasive Ladybird Harmonia axyridis. Front Ecol Evol 2017. [DOI: 10.3389/fevo.2017.00108] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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17
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Van Petegem KHP, Boeye J, Stoks R, Bonte D. Spatial Selection and Local Adaptation Jointly Shape Life-History Evolution during Range Expansion. Am Nat 2016; 188:485-498. [DOI: 10.1086/688666] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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18
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Lehmann P, Kaunisto S, Koštál V, Margus A, Zahradníčková H, Lindström L. Comparative ecophysiology of cold-tolerance-related traits: assessing range expansion potential for an invasive insect at high latitude. Physiol Biochem Zool 2015; 88:254-65. [PMID: 25860825 DOI: 10.1086/680384] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Survival at high latitude requires the capability to cope with seasonally imposed stress, such as low winter temperatures or large temperature fluctuations. The Colorado potato beetle, Leptinotarsa decemlineata, is an invasive pest of potato that has rapidly spread from low latitudes to higher latitudes. During the last 30 years, a decrease in range expansion speed is apparent in Europe. We use a comparative approach to assess whether this could be due to an inability of L. decemlineata to cope with the harsher winters encountered at high latitude, when compared to two native northern chrysomelid beetles with similar overwintering ecology. We investigated several cold-tolerance-related physiological traits at different time points during winter. Cold tolerance followed a latitudinal pattern; the northern species were more tolerant to short-term subzero temperatures than the invasive L. decemlineata. The other northern species, the knotgrass leaf beetle, Chrysolina polita, was found to tolerate internal freezing. Interestingly, the pattern for overwinter survival at 5°C was the opposite and higher in L. decemlineata than the northern species and could be related to behavioral differences between species in overwintering location selection and a potential physiological trade-off between tolerance to cold shock and to chronic cold exposure. Furthermore, while the northern species accumulated large amounts of different sugars and polyols with probable cryoprotectant functions, none were detected in L. decemlineata at high concentrations. This lack of cryoprotectant accumulation could explain the difference in cold tolerance between the species and also suggests that a lack of physiological capacity to tolerate low temperatures could slow further latitudinal range expansion of L. decemlineata.
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Affiliation(s)
- Philipp Lehmann
- Centre of Excellence in Biological Interactions Research, Department of Bio- and Environmental Science, University of Jyväskylä, Jyväskylä, Finland; 2Department of Zoology, SE-106 91, University of Stockholm, Stockholm, Sweden; 3Department of Biology, University of Eastern Finland, Joensuu, Finland; 4School of Forest Sciences, University of Eastern Finland, Joensuu, Finland; 5Institute of Entomology, Biology Center, Academy of Sciences of the Czech Republic, Prague, Czech Republic
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Lehmann P, Lyytinen A, Piiroinen S, Lindström L. Latitudinal differences in diapause related photoperiodic responses of European Colorado potato beetles (Leptinotarsa decemlineata). Evol Ecol 2015. [DOI: 10.1007/s10682-015-9755-x] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Abstract
Crop pests and pathogens (CPPs) present a growing threat to food security and ecosystem management. The interactions between plants and their natural enemies are influenced by environmental conditions and thus global warming and climate change could affect CPP ranges and impact. Observations of changing CPP distributions over the twentieth century suggest that growing agricultural production and trade have been most important in disseminating CPPs, but there is some evidence for a latitudinal bias in range shifts that indicates a global warming signal. Species distribution models using climatic variables as drivers suggest that ranges will shift latitudinally in the future. The rapid spread of the Colorado potato beetle across Eurasia illustrates the importance of evolutionary adaptation, host distribution, and migration patterns in affecting the predictions of climate-based species distribution models. Understanding species range shifts in the framework of ecological niche theory may help to direct future research needs.
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