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Liu Q, Zhang HD, Xing D, Xie JW, Du YT, Wang M, Yin ZG, Jia N, Li CX, Zhao T, Jiang YT, Dong YD, Guo XX, Zhou XY, Zhao TY. The effect of artificial light at night (ALAN) on the characteristics of diapause of Aedes albopictus. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 924:171594. [PMID: 38461989 DOI: 10.1016/j.scitotenv.2024.171594] [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: 11/09/2023] [Revised: 03/07/2024] [Accepted: 03/07/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND Recently, the effect of artificial light at night (ALAN) on the physiology and behavior of insects has gradually attracted the attention of researchers and has become a new research topic. Aedes albopictus is an important vector that poses a great public health risk. Further studies on the diapause of Ae. albopictus can provide a basis for new vector control, and it is also worth exploring whether the effect of ALAN on the diapause of Ae. albopictus will provide a reference for the prevention and control of infectious diseases mediated by Ae. albopictus. METHODS In this study, we experimentally studied the diapause characteristics of different geographical strains of Ae. albopictus under the interference of ALAN, explored the effect of ALAN on the diapause of Ae. albopictus and explored the molecular mechanism of ALAN on the diapause process through RNA-seq. RESULTS As seen from the diapause incidence, Ae. albopictus of the same geographic strain showed a lower diapause incidence when exposed to ALAN. The differentially expressed genes (DEGs) were mainly enriched in signaling and metabolism-related pathways in the parental females and diapause eggs of the ALAN group. CONCLUSIONS ALAN inhibits Ae. albopictus diapause. In the short photoperiod induced diapause of Ae. albopictus in temperate strain Beijing and subtropical strain Guangzhou, the disturbance of ALAN reduced the egg diapause rate and increased the egg hatching rate of Ae. albopictus, and the disturbance of ALAN also shortened the life cycle of Ae. albopictus eggs after hatching.
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Affiliation(s)
- Qing Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Heng-Duan Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Dan Xing
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Jing-Wen Xie
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yu-Tong Du
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Ming Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Zi-Ge Yin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Nan Jia
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Chun-Xiao Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Teng Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yu-Ting Jiang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yan-De Dong
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Xiao-Xia Guo
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Xin-Yu Zhou
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Tong-Yan Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China.
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Li J, Zhang D, Zhang Z, Meng S, Wang B, Li Z, Liu X, Zhang S. miR-2765 Modulates the Seasonal Polyphenism in Cacopsylla chinensis by Targeting a Novel Cold Rreceptor CcTRPC3. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:140-152. [PMID: 38118125 DOI: 10.1021/acs.jafc.3c05429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
Polyphenism is a beneficial way in organisms to better cope with changing circumstances and is a hot topic in entomology, evolutionary biology, and ecology. Until now, this phenomenon has been proven to be season-, density-, and diet-dependent; however, there are very few reports on temperature regulation. Cacopsylla chinensis showed seasonal polyphenism, namely as summer- and winter-form, with obvious diversity in phenotypic characteristics in response to seasonal variation. Previous studies have found that low temperature in autumn is an extremely important element in inducing summer-form change to winter-form, but the underlying regulatory mechanism is still a mystery. Herein, we provided the initial evidence that the third instar of the summer-form is the critical period for developing to the winter-form, and 10 °C induces this transition by affecting the total pigment, chitin level, and thickness of the cuticle. Second, CcTPRC3 was proven to function as a novel cold receptor to control this seasonal polyphenism. Moreover, miR-2765 was found to mediate seasonal polyphenism by inhibiting CcTRPC3 expression. Last, we found that cuticle binding proteins CcCPR4 and CcCPR9 function as the downstream signals of CcTRPC3 to regulate the seasonal polyphenism in C. chinensis. In conclusion, our results displayed a novel signal pathway of miR-2765 and CcTRPC3 for the regulation of seasonal polyphenism in C. chinensis. These findings provide insights into the comprehensive analysis of insect polyphenism and are useful in developing potential strategies to block the phase transition for the pest control of C. chinensis.
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Affiliation(s)
- Jianying Li
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, 100193 Beijing, China
| | - Dongyue Zhang
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, 100193 Beijing, China
| | - Zhixian Zhang
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, 100193 Beijing, China
| | - Shili Meng
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, 100193 Beijing, China
| | - Bo Wang
- Sanya Institute of China Agricultural University, 572025 Sanya City, Hainan Province, China
| | - Zhen Li
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, 100193 Beijing, China
| | - Xiaoxia Liu
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, 100193 Beijing, China
| | - Songdou Zhang
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, 100193 Beijing, China
- Sanya Institute of China Agricultural University, 572025 Sanya City, Hainan Province, China
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3
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Zhang S, Li J, Zhang D, Zhang Z, Meng S, Li Z, Liu X. miR-252 targeting temperature receptor CcTRPM to mediate the transition from summer-form to winter-form of Cacopsylla chinensis. eLife 2023; 12:RP88744. [PMID: 37965868 PMCID: PMC10651175 DOI: 10.7554/elife.88744] [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] [Indexed: 11/16/2023] Open
Abstract
Temperature determines the geographical distribution of organisms and affects the outbreak and damage of pests. Insects seasonal polyphenism is a successful strategy adopted by some species to adapt the changeable external environment. Cacopsylla chinensis (Yang & Li) showed two seasonal morphotypes, summer-form and winter-form, with significant differences in morphological characteristics. Low temperature is the key environmental factor to induce its transition from summer-form to winter-form. However, the detailed molecular mechanism remains unknown. Here, we firstly confirmed that low temperature of 10 °C induced the transition from summer-form to winter-form by affecting the cuticle thickness and chitin content. Subsequently, we demonstrated that CcTRPM functions as a temperature receptor to regulate this transition. In addition, miR-252 was identified to mediate the expression of CcTRPM to involve in this morphological transition. Finally, we found CcTre1 and CcCHS1, two rate-limiting enzymes of insect chitin biosyntheis, act as the critical down-stream signal of CcTRPM in mediating this behavioral transition. Taken together, our results revealed that a signal transduction cascade mediates the seasonal polyphenism in C. chinensis. These findings not only lay a solid foundation for fully clarifying the ecological adaptation mechanism of C. chinensis outbreak, but also broaden our understanding about insect polymorphism.
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Affiliation(s)
- Songdou Zhang
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural UniversityBeijingChina
| | - Jianying Li
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural UniversityBeijingChina
| | - Dongyue Zhang
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural UniversityBeijingChina
| | - Zhixian Zhang
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural UniversityBeijingChina
| | - Shili Meng
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural UniversityBeijingChina
| | - Zhen Li
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural UniversityBeijingChina
| | - Xiaoxia Liu
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural UniversityBeijingChina
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4
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Hilker M, Salem H, Fatouros NE. Adaptive Plasticity of Insect Eggs in Response to Environmental Challenges. ANNUAL REVIEW OF ENTOMOLOGY 2023; 68:451-469. [PMID: 36266253 DOI: 10.1146/annurev-ento-120120-100746] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Insect eggs are exposed to a plethora of abiotic and biotic threats. Their survival depends on both an innate developmental program and genetically determined protective traits provided by the parents. In addition, there is increasing evidence that (a) parents adjust the egg phenotype to the actual needs, (b) eggs themselves respond to environmental challenges, and (c) egg-associated microbes actively shape the egg phenotype. This review focuses on the phenotypic plasticity of insect eggs and their capability to adjust themselves to their environment. We outline the ways in which the interaction between egg and environment is two-way, with the environment shaping the egg phenotype but also with insect eggs affecting their environment. Specifically, insect eggs affect plant defenses, host biology (in the case of parasitoid eggs), and insect oviposition behavior. We aim to emphasize that the insect egg, although it is a sessile life stage, actively responds to and interacts with its environment.
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Affiliation(s)
- Monika Hilker
- Applied Zoology/Animal Ecology, Institute of Biology, Freie Universität Berlin, Berlin, Germany;
| | - Hassan Salem
- Mutualisms Research Group, Max Planck Institute for Biology, Tübingen, Germany;
| | - Nina E Fatouros
- Biosystematics Group, Wageningen University and Research, Wageningen, The Netherlands;
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5
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Rajamohan A, Prasifka JR, Rinehart JP. Vitrification of Lepidopteran Embryos-A Simple Protocol to Cryopreserve the Embryos of the Sunflower Moth, Homoeosoma electellum. INSECTS 2022; 13:959. [PMID: 36292907 PMCID: PMC9603988 DOI: 10.3390/insects13100959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/15/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
Embryos of the sunflower moth, Homoeosoma electellum (Hulst), were cryopreserved after modification to the method that was previously described for Pectinophora gossipiella. The workflow to develop the protocol consisted of methods to weaken the embryonic chorion followed by the application of various methods to disrupt the sub-chorionic wax layer. These steps were necessary to render the embryos permeable to water and cryoprotectants. Initially, the embryos were incubated at 21° and 24 °C, and the development of the double pigment spots/eyespot and eclosion were tracked every two hours. The embryos at 24 °C showed eyespots as early as 30 h, while in the case of the embryos that were incubated at 21 °C, there was a developmental delay of approximately 20 h. The embryos at 24 °C showed peak eclosion between 55 and 70 h, and the embryos at 21 °C eclosed between 80 and 100 h of development. Estimating this range is crucial for the purposes of stage selection and treatment initiation for cryopreservation protocol development for the embryos. The control hatch percentage at either developmental temperature was >90%, and the sodium hypochloride, 2-propanol and alkane-based treatments reduced the embryo hatchability to <10%. Hence, a modified surfactant-hypochlorite mixture-was used to destabilize the chorion and solubilize the hydrophobic lipid layers. Water permeability assessments using the dye-uptake method show that polysorbate 80 in combination with sodium hypochlorite alone is capable of permeabilizing the embryo as efficiently as sequential hypochlorite-alkane treatments, but with significantly higher hatch rates. A vitrification medium consisting of ethane diol and trehalose was used to dehydrate and load the embryos with the cryoprotective agent. The median hatch rates after vitrification were 10%, and maximum was 23%.
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Affiliation(s)
- Arun Rajamohan
- Insect Biochemistry and Genetics Research Unit, USDA-ARS-Edward T. Schafer Agricultural Research Center, 1616 Albrecht Blvd., Fargo, ND 58102, USA
| | - Jarrad R. Prasifka
- Sunflower and Plant Biology Research Unit, USDA-ARS-Edward T. Schafer Agricultural Research Center, 1616 Albrecht Blvd., Fargo, ND 58102, USA
| | - Joseph P. Rinehart
- Insect Biochemistry and Genetics Research Unit, USDA-ARS-Edward T. Schafer Agricultural Research Center, 1616 Albrecht Blvd., Fargo, ND 58102, USA
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6
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Mercier A, Obadia T, Carraretto D, Velo E, Gabiane G, Bino S, Vazeille M, Gasperi G, Dauga C, Malacrida AR, Reiter P, Failloux AB. Impact of temperature on dengue and chikungunya transmission by the mosquito Aedes albopictus. Sci Rep 2022; 12:6973. [PMID: 35484193 PMCID: PMC9051100 DOI: 10.1038/s41598-022-10977-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 03/16/2022] [Indexed: 12/28/2022] Open
Abstract
The mosquito Aedes albopictus is an invasive species first detected in Europe in Albania in 1979, and now established in 28 European countries. Temperature is a limiting factor in mosquito activities and in the transmission of associated arboviruses namely chikungunya (CHIKV) and dengue (DENV). Since 2007, local transmissions of CHIKV and DENV have been reported in mainland Europe, mainly in South Europe. Thus, the critical question is how far north transmission could occur. In this context, the Albanian infestation by Ae. albopictus is of interest because the species is present up to 1200 m of altitude; this allows using altitude as a proxy for latitude. Here we show that Ae. albopictus can transmit CHIKV at 28 °C as well as 20 °C, however, the transmission of DENV is only observed at 28 °C. We conclude that if temperature is the key environmental factor limiting transmission, then transmission of CHIKV, but not DENV is feasible in much of Europe.
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Affiliation(s)
- Aurélien Mercier
- Institut Pasteur, Université Paris Cité, Insects and Infectious Diseases, 75015, Paris, France.,INSERM, Univ. Limoges, CHU Limoges, IRD, U1094 Neuroépidémiologie Tropicale, Institut d'Epidémiologie Et de Neurologie Tropicale, GEIST, Limoges, France
| | - Thomas Obadia
- Institut Pasteur, Université Paris Cité, Bioinformatics and Biostatistics Hub, 75015, Paris, France.,Institut Pasteur, Université Paris Cité, G5 Infectious Disease Epidemiology and Analytics, 75015, Paris, France
| | - Davide Carraretto
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | | | - Gaelle Gabiane
- Institut Pasteur, Université Paris Cité, Arboviruses and Insect Vectors, 75015, Paris, France
| | | | - Marie Vazeille
- Institut Pasteur, Université Paris Cité, Arboviruses and Insect Vectors, 75015, Paris, France
| | - Giuliano Gasperi
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Catherine Dauga
- Institut Pasteur, Université Paris Cité, Arboviruses and Insect Vectors, 75015, Paris, France
| | - Anna R Malacrida
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Paul Reiter
- Institut Pasteur, Université Paris Cité, Insects and Infectious Diseases, 75015, Paris, France
| | - Anna-Bella Failloux
- Institut Pasteur, Université Paris Cité, Arboviruses and Insect Vectors, 75015, Paris, France.
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7
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Lee IH, Duvall LB. Maternally Instigated Diapause in Aedes albopictus: Coordinating Experience and Internal State for Survival in Variable Environments. Front Behav Neurosci 2022; 16:778264. [PMID: 35548691 PMCID: PMC9082357 DOI: 10.3389/fnbeh.2022.778264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 03/15/2022] [Indexed: 11/13/2022] Open
Abstract
The Asian tiger mosquito, Aedes albopictus, is one of the most dangerous invasive species in the world. Females bite mammalian hosts, including humans, to obtain blood for egg development. The ancestral range of Ae. albopictus likely spanned from India to Japan and this species has since invaded a substantial portion of the globe. Ae. albopictus can be broadly categorized into temperate and tropical populations. One key to their ability to invade diverse ecological spaces is the capacity of females to detect seasonal changes and produce stress-resistant eggs that survive harsh winters. Females living in temperate regions respond to cues that predict the onset of unfavorable environmental conditions by producing eggs that enter maternally instigated embryonic diapause, a developmentally arrested state, which allows species survival by protecting the embryos until favorable conditions return. To appropriately produce diapause eggs, the female must integrate environmental cues and internal physiological state (blood feeding and reproductive status) to allocate nutrients and regulate reproduction. There is variation in reproductive responses to environmental cues between interfertile tropical and temperate populations depending on whether females are actively producing diapause vs. non-diapause eggs and whether they originate from populations that are capable of diapause. Although diapause-inducing environmental cues and diapause eggs have been extensively characterized, little is known about how the female detects gradual environmental changes and coordinates her reproductive status with seasonal dynamics to lay diapause eggs in order to maximize offspring survival. Previous studies suggest that the circadian system is involved in detecting daylength as a critical cue. However, it is unknown which clock network components are important, how these connect to reproductive physiology, and how they may differ between behavioral states or across populations with variable diapause competence. In this review, we showcase Ae. albopictus as an emerging species for neurogenetics to study how the nervous system combines environmental conditions and internal state to optimize reproductive behavior. We review environmental cues for diapause induction, downstream pathways that control female metabolic changes and reproductive capacity, as well as diapause heterogeneity between populations with different evolutionary histories. We highlight genetic tools that can be implemented in Ae. albopictus to identify signaling molecules and cellular circuits that control diapause. The tools and discoveries made in this species could translate to a broader understanding of how environmental cues are interpreted to alter reproductive physiology in other species and how populations with similar genetic and circuit organizations diversify behavioral patterns. These approaches may yield new targets to interfere with mosquito reproductive capacity, which could be exploited to reduce mosquito populations and the burden of the pathogens they transmit.
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Affiliation(s)
| | - Laura B. Duvall
- Department of Biological Sciences, Columbia University in the City of New York, New York, NY, United States
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8
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Konorov EA, Yurchenko V, Patraman I, Lukashev A, Oyun N. The effects of genetic drift and genomic selection on differentiation and local adaptation of the introduced populations of Aedes albopictus in southern Russia. PeerJ 2021; 9:e11776. [PMID: 34327056 PMCID: PMC8308624 DOI: 10.7717/peerj.11776] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 06/23/2021] [Indexed: 01/05/2023] Open
Abstract
Background Asian tiger mosquito Aedes albopictus is an arbovirus vector that has spread from its native habitation areal in Southeast Asia throughout North and South Americas, Europe, and Africa. Ae. albopictus was first detected in the Southern Federal District of the Russian Federation in the subtropical town of Sochi in 2011. In subsequent years, this species has been described in the continental areas with more severe climate and lower winter temperatures. Methods Genomic analysis of pooled Ae. albopictus samples collected in the mosquito populations in the coastal and continental regions of the Krasnodar Krai was conducted to look for the genetic changes associated with the spread and potential cold adaptation in Ae. albopictus. Results The results of the phylogenetic analysis based on mitochondrial genomes corresponded well with the hypothesis that Ae. albopictus haplotype A1a2a1 was introduced into the region from a single source. Population analysis revealed the role of dispersal and genetic drift in the local adaptation of the Asian tiger mosquito. The absence of shared haplotypes between the samples and high fixation indices suggest that gene flow between samples was heavily restricted. Mitochondrial and genomic differentiation together with different distances between dispersal routes, natural and anthropogenic barriers and local effective population size reduction could lead to difficulties in local climatic adaptations due to reduced selection effectiveness. We have found genomic regions with selective sweep patterns which can be considered as having been affected by recent selection events. The genes located in these regions participate in neural protection, lipid conservation, and cuticle formation during diapause. These processes were shown to be important for cold adaptation in the previous transcriptomic and proteomic studies. However, the population history and relatively low coverage obtained in the present article could have negatively affect sweep detection.
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Affiliation(s)
- Evgenii A Konorov
- Vavilov Institute of General Genetics of Russian Academy of Science, Moscow, Russian Federation.,V.M. Gorbatov Federal Research Center for Food Systems of Russian Academy of Sciences, Moscow, Russian Federation
| | - Vyacheslav Yurchenko
- Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, Sechenov University, Moscow, Russian Federation.,Life Science Research Centre, University of Ostrava, Ostrava, Czech Republic
| | - Ivan Patraman
- Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, Sechenov University, Moscow, Russian Federation.,Federal State Budgetary Institution "National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russian Federation
| | - Alexander Lukashev
- Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, Sechenov University, Moscow, Russian Federation
| | - Nadezhda Oyun
- Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, Sechenov University, Moscow, Russian Federation.,Federal State Budgetary Institution "National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russian Federation.,Department of Entomology, Biological Faculty, Lomonosov Moscow State University, Moscow, Russian Federation
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9
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Peffers CS, Pomeroy LW, Meuti ME. Critical Photoperiod and Its Potential to Predict Mosquito Distributions and Control Medically Important Pests. JOURNAL OF MEDICAL ENTOMOLOGY 2021; 58:1610-1618. [PMID: 33835160 DOI: 10.1093/jme/tjab049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Indexed: 06/12/2023]
Abstract
Diapause, a period of arrested development that allows mosquitoes to survive inhospitable conditions, is triggered by short daylengths in temperate mosquitoes. Different populations of mosquitoes initiate diapause in response to a specific photoperiod, or daylength, resulting in population-specific differences in annual cycles of abundance. The photoperiod that causes approximately 50% of a population to initiate diapause is known as the critical photoperiod (CPP). The autumn daylength corresponding to the CPP in the field likely marks the day beyond which the photoperiods would trigger and maintain 50% or more diapause incidence in a population, although temperature, diet, and other factors can impact diapause initiation. In the Northern Hemisphere, northern populations of mosquitoes experience lower temperatures earlier in the year and must be triggered into diapause by longer daylengths than southern populations. CPP is genetically based, but also adapts over time responding to the population's environment. Therefore, CPP has been shown to lengthen with increasing latitude and altitude. While the positive correlation between CPP and latitude/altitude has been established in a few mosquito species, including Aedes albopictus (Skuse, Diptera: Culicidae), Aedes triseriatus, Aedes sierrensis, and Wyeomyia smithii (Coquillett, Diptera: Culicidae), we do not know when most other species initiate their seasonal responses. As several of these species transmit important diseases, characterizing the CPP of arthropod vectors could improve existing control by ensuring that surveillance efforts align with the vector's seasonally active period. Additionally, better understanding when mosquitoes and other vectors initiate diapause can reduce the frequency of chemical applications, thereby ameliorating the negative impacts to nontarget insects.
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Affiliation(s)
- Caitlin S Peffers
- Department of Entomology, The Ohio State University, Coffey Road, Kottman Hall, Columbus, OH, USA
| | - Laura W Pomeroy
- Division of Environmental Health Sciences, College of Public Health, The Ohio State University, Neil Avenue, Cunz Hall, Columbus, OH, USA
- Translational Data Analytics Institute, The Ohio State University, Neil Avenue, Suite, Pomerene Hall, Columbus, OH, USA
| | - Megan E Meuti
- Department of Entomology, The Ohio State University, Coffey Road, Kottman Hall, Columbus, OH, USA
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Kramer IM, Pfeiffer M, Steffens O, Schneider F, Gerger V, Phuyal P, Braun M, Magdeburg A, Ahrens B, Groneberg DA, Kuch U, Dhimal M, Müller R. The ecophysiological plasticity of Aedes aegypti and Aedes albopictus concerning overwintering in cooler ecoregions is driven by local climate and acclimation capacity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 778:146128. [PMID: 34030376 DOI: 10.1016/j.scitotenv.2021.146128] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 02/19/2021] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
Aedes aegypti and Aedes albopictus transmit diseases such as dengue, and are of major public health concern. Driven by climate change and global trade/travel both species have recently spread to new tropic/subtropic regions and Ae. albopictus also to temperate ecoregions. The capacity of both species to adapt to new environments depends on their ecophysiological plasticity, which is the width of functional niches where a species can survive. Mechanistic distribution models often neglect to incorporate ecophysiological plasticity especially in regards to overwintering capacity in cooler habitats. To portray the ecophysiological plasticity concerning overwintering capability, we conducted temperature experiments with multiple populations of both species originating from an altitudinal gradient in South Asia and tested as follows: the cold tolerance of eggs (-2 °C- 8 days and - 6 °C- 2 days) without and with an experimental winter onset (acclimation: 10 °C- 60 days), differences between a South Asian and a European Ae. albopictus population and the temperature response in life cycles (13 °C, 18 °C, 23 °C, 28 °C). Ecophysiological plasticity in overwintering capacity in Ae. aegypti is high in populations originating from low altitude and in Ae. albopictus populations from high altitude. Overall, ecophysiological plasticity is higher in Ae. albopictus compared to Ae. aegypti. In both species acclimation and in Ae. albopictus temperate continental origin had a huge positive effect on survival. Our results indicate that future mechanistic prediction models can include data on winter survivorship of both, tropic and subtropic Ae. aegypti, whereas for Ae. albopictus this depends on the respective temperate, tropical region the model is focusing on. Future research should address cold tolerance in multiple populations worldwide to evaluate the full potential of the ecophysiological plasticity in the two species. Furthermore, we found that Ae. aegypti can survive winter cold especially when acclimated and will probably further spread to colder ecoregions driven by climate change.
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Affiliation(s)
- Isabelle Marie Kramer
- Institute of Occupational, Social and Environmental Medicine, Goethe University, Frankfurt am Main, Germany.
| | - Marie Pfeiffer
- Institute of Occupational, Social and Environmental Medicine, Goethe University, Frankfurt am Main, Germany.
| | - Oliver Steffens
- Institute of Occupational, Social and Environmental Medicine, Goethe University, Frankfurt am Main, Germany.
| | - Friederike Schneider
- Institute of Occupational, Social and Environmental Medicine, Goethe University, Frankfurt am Main, Germany.
| | - Viviane Gerger
- Institute of Occupational, Social and Environmental Medicine, Goethe University, Frankfurt am Main, Germany.
| | - Parbati Phuyal
- Institute of Occupational, Social and Environmental Medicine, Goethe University, Frankfurt am Main, Germany.
| | - Markus Braun
- Institute of Occupational, Social and Environmental Medicine, Goethe University, Frankfurt am Main, Germany.
| | - Axel Magdeburg
- Institute of Occupational, Social and Environmental Medicine, Goethe University, Frankfurt am Main, Germany.
| | - Bodo Ahrens
- Institute for Atmospheric and Environmental Sciences, Goethe University, Frankfurt am Main, Germany.
| | - David A Groneberg
- Institute of Occupational, Social and Environmental Medicine, Goethe University, Frankfurt am Main, Germany.
| | - Ulrich Kuch
- Institute of Occupational, Social and Environmental Medicine, Goethe University, Frankfurt am Main, Germany.
| | | | - Ruth Müller
- Institute of Occupational, Social and Environmental Medicine, Goethe University, Frankfurt am Main, Germany; Unit Entomology, Institute of Tropical Medicine, Antwerp, Belgium.
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Gao J, Zhang HD, Guo XX, Xing D, Dong YD, Lan CJ, Wang G, Li CJ, Li CX, Zhao TY. Dispersal patterns and population genetic structure of Aedes albopictus (Diptera: Culicidae) in three different climatic regions of China. Parasit Vectors 2021; 14:12. [PMID: 33407824 PMCID: PMC7789686 DOI: 10.1186/s13071-020-04521-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 12/04/2020] [Indexed: 11/23/2022] Open
Abstract
Background Aedes albopictus is an indigenous primary vector for dengue and Zika viruses in China. Compared with its insecticide resistance, biology and vector competence, little is known about its genetic variation, which corresponds to environmental variations. Thus, the present study examines how Ae. albopictus varies among different climatic regions in China and deciphers its potential dispersal patterns. Methods The genetic variation and population structure of 17 Ae. albopictus populations collected from three climatic regions of China were investigated with 11 microsatellite loci and the mitochondrial coxI gene. Results Of 44 isolated microsatellite markers, 11 pairs were chosen for genotyping analysis and had an average PIC value of 0.713, representing high polymorphism. The number of alleles was high in each population, with the ne value increasing from the temperate region (3.876) to the tropical region (4.144). Twenty-five coxI haplotypes were detected, and the highest diversity was observed in the tropical region. The mean Ho value (ca. 0.557) of all the regions was significantly lower than the mean He value (ca. 0.684), with nearly all populations significantly departing from HWE and displaying significant population expansion (p value < 0.05). Two genetically isolated groups and three haplotype clades were evaluated via STRUCTURE and haplotype phylogenetic analyses, and the tropical populations were significantly isolated from those in the other regions. Most genetic variation in Ae. albopictus was detected within populations and individuals at 31.40 and 63.04%, respectively, via the AMOVA test, and a relatively significant positive correlation was observed among only the temperate populations via IBD analysis (R2 = 0.6614, p = 0.048). Recent dispersions were observed among different Ae. albopictus populations, and four major migration trends with high gene flow (Nm > 0.4) were reconstructed between the tropical region and the other two regions. Environmental factors, especially temperature and rainfall, may be the leading causes of genetic diversity in different climatic regions. Conclusions Continuous dispersion contributes to the genetic communication of Ae. albopictus populations across different climatic regions, and environmental factors, especially temperature and rainfall, may be the leading causes of genetic variation. Graphical abstract ![]()
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Affiliation(s)
- Jian Gao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Heng-Duan Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Xiao-Xia Guo
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Dan Xing
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Yan-De Dong
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Ce-Jie Lan
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Ge Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Chao-Jie Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Chun-Xiao Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China.
| | - Tong-Yan Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China.
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Simultaneous Occurrence of Diapause and Cold Hardiness in Overwintering Eggs of the Apple Oystershell Scale, Lepidosaphes Malicola Borchsenius (Hem.: Diaspididae). Zool Stud 2020; 59:e25. [PMID: 33262848 DOI: 10.6620/zs.2020.59-25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 05/20/2020] [Indexed: 11/18/2022]
Abstract
As the key pest of apple fruits, the oystershell scale, Lepidosaphes malicola Borchsenius (Hem.: Diaspididae), overwinters as diapausing eggs under the protective, waxy cover of females. In this research, the effects of diapause development, cold acclimation, and rapid cold hardening were studied on the cold hardiness of the eggs. The changes in some physiological components were also investigated. The results indicated cold exposure to be a prerequisite for the survival of the diapausing eggs of L. malicola. No eggs hatched without exposure to cold. In addition, a direct relationship was observed among cold hardiness, cold acclimation, and diapause of the eggs based on the results. The highest level of hatching (the highest cold hardiness) of the eggs (80%) occurred in the cold-acclimated eggs at the end of diapause (March). Rapid cold hardening also influenced the cold hardiness of the eggs with diapause development. At the end of diapause, the lowest (61%) and the highest (77%) rates of egg survival were observed when the eggs were exposed to 5 and -10°C for 24 h, respectively. Cold hardiness of the diapausing eggs of L. malicola was also accompanied by some physiological changes, i.e., a decrease in glycogen content and an increase in simple sugar, lipid, and protein contents. The lowest glycogen content (about 50 μg/g) and the highest amounts of total simple sugars (454 μg/g) of lipids (542 μg/g) and proteins (84 μg/g) were observed in the cold-acclimated eggs at the end of diapause.
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13
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Surviving the Antarctic winter-Life Stage Cold Tolerance and Ice Entrapment Survival in The Invasive Chironomid Midge Eretmoptera murphyi. INSECTS 2020; 11:insects11030147. [PMID: 32111052 PMCID: PMC7143863 DOI: 10.3390/insects11030147] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/21/2020] [Accepted: 02/22/2020] [Indexed: 02/03/2023]
Abstract
An insect’s ability to tolerate winter conditions is a critical determinant of its success. This is true for both native and invasive species, and especially so in harsh polar environments. The midge Eretmoptera murphyi (Diptera, Chironomidae) is invasive to maritime Antarctic Signy Island, and the ability of fourth instar larvae to tolerate freezing is hypothesized to allow the species to extend its range further south. However, no detailed assessment of stress tolerance in any other life stage has yet been conducted. Here, we report that, although larvae, pupae and adults all have supercooling points (SCPs) of around −5 °C, only the larvae are freeze-tolerant, and that cold-hardiness increases with larval maturity. Eggs are freeze-avoiding and have an SCP of around −17 °C. At −3.34 °C, the CTmin activity thresholds of adults are close to their SCP of −5 °C, and they are likely chill-susceptible. Larvae could not withstand the anoxic conditions of ice entrapment or submergence in water beyond 28 d. The data obtained here indicate that the cold-tolerance characteristics of this invasive midge would permit it to colonize areas further south, including much of the western coast of the Antarctic Peninsula.
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14
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Sherpa S, Guéguen M, Renaud J, Blum MGB, Gaude T, Laporte F, Akiner M, Alten B, Aranda C, Barre‐Cardi H, Bellini R, Bengoa Paulis M, Chen X, Eritja R, Flacio E, Foxi C, Ishak IH, Kalan K, Kasai S, Montarsi F, Pajović I, Petrić D, Termine R, Turić N, Vazquez‐Prokopec GM, Velo E, Vignjević G, Zhou X, Després L. Predicting the success of an invader: Niche shift versus niche conservatism. Ecol Evol 2019; 9:12658-12675. [PMID: 31788205 PMCID: PMC6875661 DOI: 10.1002/ece3.5734] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/10/2019] [Accepted: 09/20/2019] [Indexed: 01/04/2023] Open
Abstract
Invasive species can encounter environments different from their source populations, which may trigger rapid adaptive changes after introduction (niche shift hypothesis). To test this hypothesis, we investigated whether postintroduction evolution is correlated with contrasting environmental conditions between the European invasive and source ranges in the Asian tiger mosquito Aedes albopictus. The comparison of environmental niches occupied in European and source population ranges revealed more than 96% overlap between invasive and source niches, supporting niche conservatism. However, we found evidence for postintroduction genetic evolution by reanalyzing a published ddRADseq genomic dataset from 90 European invasive populations using genotype-environment association (GEA) methods and generalized dissimilarity modeling (GDM). Three loci, among which a putative heat-shock protein, exhibited significant allelic turnover along the gradient of winter precipitation that could be associated with ongoing range expansion. Wing morphometric traits weakly correlated with environmental gradients within Europe, but wing size differed between invasive and source populations located in different climatic areas. Niche similarities between source and invasive ranges might have facilitated the establishment of populations. Nonetheless, we found evidence for environmental-induced adaptive changes after introduction. The ability to rapidly evolve observed in invasive populations (genetic shift) together with a large proportion of unfilled potential suitable areas (80%) pave the way to further spread of Ae. albopictus in Europe.
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Affiliation(s)
- Stéphanie Sherpa
- Laboratoire d'Ecologie Alpine (LECA)CNRSUniversité Grenoble AlpesGrenobleFrance
| | - Maya Guéguen
- Laboratoire d'Ecologie Alpine (LECA)CNRSUniversité Grenoble AlpesGrenobleFrance
| | - Julien Renaud
- Laboratoire d'Ecologie Alpine (LECA)CNRSUniversité Grenoble AlpesGrenobleFrance
| | - Michael G. B. Blum
- Laboratoire Techniques de l'Ingénierie Médicale et de la Complexité (TIMC‐IMAG)CNRSUniversité Grenoble AlpesGrenobleFrance
| | - Thierry Gaude
- Laboratoire d'Ecologie Alpine (LECA)CNRSUniversité Grenoble AlpesGrenobleFrance
| | - Frédéric Laporte
- Laboratoire d'Ecologie Alpine (LECA)CNRSUniversité Grenoble AlpesGrenobleFrance
| | - Mustafa Akiner
- Department of BiologyFaculty of Arts and SciencesRecep Tayyip Erdogan UniversityFenerTurkey
| | - Bulent Alten
- Vector Ecology Research Group (VERG)Ecological Sciences Research LaboratoriesDepartment of BiologyFaculty of ScienceHacettepe UniversityAnkaraTurkey
| | - Carles Aranda
- Centre de Recerca en Sanitat Animal (CReSA IRTA)BarcelonaSpain
- Servei de Control de MosquitsConsell Comarcal del Baix LlobregatBarcelonaSpain
| | - Hélène Barre‐Cardi
- Observatoire Conservatoire des Insectes de CorseOffice de l'Environnement de la CorseCortiFrance
| | - Romeo Bellini
- Department of Medical and Veterinary EntomologyCentro Agricoltura Ambiente “G.Nicoli”CrevalcoreItaly
| | | | - Xiao‐Guang Chen
- Department of Pathogen BiologySchool of Public HealthSouthern Medical UniversityGuang ZhouChina
| | - Roger Eritja
- Servei de Control de MosquitsConsell Comarcal del Baix LlobregatBarcelonaSpain
| | - Eleonora Flacio
- Laboratorio Microbiologia ApplicataDipartimento Ambiente Costruzioni e DesignScuola Universitaria Professionale della Svizzera ItalianaPorzaSwitzerland
| | - Cipriano Foxi
- Istituto Zooprofilattico Sperimentale della Sardegna “G. Pegreffi”SassariItaly
| | - Intan H. Ishak
- School of Biological SciencesUniversiti Sains MalaysiaPenangMalaysia
| | - Katja Kalan
- Department of BiodiversityFaculty of Mathematics, Natural Sciences and Information TechnologiesUniversity of PrimorskaKoperSlovenia
| | - Shinji Kasai
- Department of Medical EntomologyNational Institute of Infectious DiseasesTokyoJapan
| | - Fabrizio Montarsi
- Laboratory of ParasitologyIstituto Zooprofilattico Sperimentale delle VeneziePadovaItaly
| | - Igor Pajović
- University of Montenegro Biotechnical FacultyPodgoricaMontenegro
| | - Dušan Petrić
- Laboratory for Medical and Veterinary EntomologyFaculty of AgricultureUniversity of Novi SadNovi SadSerbia
| | - Rosa Termine
- Laboratorio di Ingegneria Sanitaria AmbientaleUniversità “Kore” di EnnaEnnaItaly
| | - Nataša Turić
- Department of BiologyJosip Juraj Strossmayer UniversityOsijekCroatia
| | | | - Enkelejda Velo
- Department of Epidemiology and Control of Infectious DiseasesInstitute of Public HealthTiranaAlbania
| | - Goran Vignjević
- Department of BiologyJosip Juraj Strossmayer UniversityOsijekCroatia
| | - Xiaohong Zhou
- Department of Pathogen BiologySchool of Public HealthSouthern Medical UniversityGuang ZhouChina
| | - Laurence Després
- Laboratoire d'Ecologie Alpine (LECA)CNRSUniversité Grenoble AlpesGrenobleFrance
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Sherpa S, Blum MGB, Després L. Cold adaptation in the Asian tiger mosquito's native range precedes its invasion success in temperate regions. Evolution 2019; 73:1793-1808. [DOI: 10.1111/evo.13801] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 06/06/2019] [Accepted: 06/14/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Stéphanie Sherpa
- Université Grenoble Alpes CNRS, UMR 5553 LECA F‐38000 Grenoble France
| | - Michael G. B. Blum
- Université Grenoble Alpes CNRS, UMR 5525 TIMC‐IMAG F‐38000 Grenoble France
| | - Laurence Després
- Université Grenoble Alpes CNRS, UMR 5553 LECA F‐38000 Grenoble France
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Zhang M, Zhang D, Li Y, Sun Q, Li Q, Fan Y, Wu Y, Xi Z, Zheng X. Water-induced strong protection against acute exposure to low subzero temperature of adult Aedes albopictus. PLoS Negl Trop Dis 2019; 13:e0007139. [PMID: 30716071 PMCID: PMC6382212 DOI: 10.1371/journal.pntd.0007139] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 02/20/2019] [Accepted: 01/07/2019] [Indexed: 12/17/2022] Open
Abstract
As an important vector of dengue and Zika, Aedes albopictus has been the fastest spreading invasive mosquitoes in the world over the last 3–4 decades. Cold tolerance is important for survival and expansion of insects. Ae. albopictus adults are generally considered to be cold-intolerant that cannot survive at subzero temperature. However, we found that Ae. albopictus could survive for several hours’ exposure to -9 to -19 oC so long as it was exposed with water. Median lethal time (LT50) of Ae. albopictus exposed to -15 and -19 oC with water increased by more than 100 times compared to those exposed to the same subzero temperature without water. This phenomenon also existed in adult Aedes aegypti and Culex quinquefasciatus. Ae. albopictus female adults which exposed to low subzero temperature at -9 oC with water had similar longevity and reproductive capacity to those of females without cold exposure. Cold exposure after a blood meal also have no detrimental impact on survival capacity of female adult Ae. albopictus compared with those cold exposed without a blood meal. Moreover, our results showed that rapid cold hardening (RCH) was induced in Ae. albopictus during exposing to low subzero temperature with water. Both the RCH and the relative high subzero temperature of water immediate after cold exposure might provide this strong protection against low subzero temperature. The molecular basis of water-induced protection for Ae. albopictus might refer to the increased glycerol during cold exposure, as well as the increased glucose and hsp70 during recovery from cold exposure. Our results suggested that the water-induced strong protection against acute decrease of air temperature for adult mosquitoes might be important for the survival and rapid expansion of Ae. albopictus. Aedes albopictus is one of two most important vectors for dengue and zika. During the last 3–4 decades, this mosquito has spread from native Asian area to all continents except Antarctica, becoming the most invasive mosquitoes which imposed extensive public health threat to human beings throughout the world. Cold tolerance is important for distribution and survival of insects. During the expansion of Ae. albopictus, especially a spatial expansion to cooler climate areas, it needs to cope with cold temperatures. Moreover, because of such widespread distribution adult Ae. albopictus will certainly often encounter sudden drops in air temperature even below subzero that often happens in early spring and winter, and late autumn. Thus far, adult Ae. albopictus are generally considered to be cold-intolerant that can not survive at subzero temperature. In this study, we found that water can provide strong protection against low subzero temperature even below -10 oC. Cold exposure of adult female Ae. albopictus to low subzero temperature with water either before or after a blood meal have no detrimental impact on fitness costs of these adult mosquitoes. Considering water is common in nature, our results indicated that during the expansion of Ae. albopictus especially when adult mosquitoes encounter a sudden drop in air temperature water could be a good shelter for cope with such cold temperature below subzero.
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Affiliation(s)
- Meichun Zhang
- Sun Yat-sen University—Michigan State University Joint Center of Vector Control for Tropical Diseases, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Key Laboratory for Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Engineering Technology Research Center for Diseases-Vectors Control, Sun Yat-sen University, Guangzhou, China
| | - Dongjing Zhang
- Sun Yat-sen University—Michigan State University Joint Center of Vector Control for Tropical Diseases, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Key Laboratory for Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Engineering Technology Research Center for Diseases-Vectors Control, Sun Yat-sen University, Guangzhou, China
| | - Yongjun Li
- Sun Yat-sen University—Michigan State University Joint Center of Vector Control for Tropical Diseases, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Key Laboratory for Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Engineering Technology Research Center for Diseases-Vectors Control, Sun Yat-sen University, Guangzhou, China
| | - Qiang Sun
- Sun Yat-sen University—Michigan State University Joint Center of Vector Control for Tropical Diseases, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Qin Li
- Section of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, United States of America
| | - Yali Fan
- Sun Yat-sen University—Michigan State University Joint Center of Vector Control for Tropical Diseases, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Key Laboratory for Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Engineering Technology Research Center for Diseases-Vectors Control, Sun Yat-sen University, Guangzhou, China
| | - Yu Wu
- Sun Yat-sen University—Michigan State University Joint Center of Vector Control for Tropical Diseases, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Key Laboratory for Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Engineering Technology Research Center for Diseases-Vectors Control, Sun Yat-sen University, Guangzhou, China
| | - Zhiyong Xi
- Sun Yat-sen University—Michigan State University Joint Center of Vector Control for Tropical Diseases, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, United States of America
- * E-mail: (ZX); (XZ)
| | - Xiaoying Zheng
- Sun Yat-sen University—Michigan State University Joint Center of Vector Control for Tropical Diseases, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Key Laboratory for Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Engineering Technology Research Center for Diseases-Vectors Control, Sun Yat-sen University, Guangzhou, China
- * E-mail: (ZX); (XZ)
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18
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Moretti R, Yen PS, Houé V, Lampazzi E, Desiderio A, Failloux AB, Calvitti M. Combining Wolbachia-induced sterility and virus protection to fight Aedes albopictus-borne viruses. PLoS Negl Trop Dis 2018; 12:e0006626. [PMID: 30020933 PMCID: PMC6066253 DOI: 10.1371/journal.pntd.0006626] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 07/30/2018] [Accepted: 06/21/2018] [Indexed: 11/19/2022] Open
Abstract
Among the strategies targeting vector control, the exploitation of the endosymbiont Wolbachia to produce sterile males and/or invasive females with reduced vector competence seems to be promising. A new Aedes albopictus transinfection (ARwP-M) was generated by introducing wMel Wolbachia in the ARwP line which had been established previously by replacing wAlbA and wAlbB Wolbachia with the wPip strain. Various infection and fitness parameters were studied by comparing ARwP-M, ARwP and wild-type (SANG population) Ae. albopictus sharing the same genetic background. Moreover, the vector competence of ARwP-M related to chikungunya, dengue and zika viruses was evaluated in comparison with ARwP. ARwP-M showed a 100% rate of maternal inheritance of wMel and wPip Wolbachia. Survival, female fecundity and egg fertility did not show to differ between the three Ae. albopictus lines. Crosses between ARwP-M males and SANG females were fully unfertile regardless of male age while egg hatch in reverse crosses increased from 0 to about 17% with SANG males aging from 3 to 17 days. When competing with SANG males for SANG females, ARwP-M males induced a level of sterility significantly higher than that expected for an equal mating competitiveness (mean Fried index of 1.71 instead of 1). The overall Wolbachia density in ARwP-M females was about 15 fold higher than in ARwP, mostly due to the wMel infection. This feature corresponded to a strongly reduced vector competence for chikungunya and dengue viruses (in both cases, 5 and 0% rates of transmission at 14 and 21 days post infection) with respect to ARwP females. Results regarding Zika virus did not highlight significant differences between ARwP-M and ARwP. However, none of the tested ARwP-M females was capable at transmitting ZIKV. These findings are expected to promote the exploitation of Wolbachia to suppress the wild-type Ae. albopictus populations.
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Affiliation(s)
- Riccardo Moretti
- Biotechnology and Agroindustry Division, ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development), Casaccia Research Center, Rome, Italy
- * E-mail:
| | - Pei-Shi Yen
- Department of Virology, Institut Pasteur, Arboviruses and Insect Vectors Unit, Paris, France
| | - Vincent Houé
- Department of Virology, Institut Pasteur, Arboviruses and Insect Vectors Unit, Paris, France
| | - Elena Lampazzi
- Biotechnology and Agroindustry Division, ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development), Casaccia Research Center, Rome, Italy
| | - Angiola Desiderio
- Biotechnology and Agroindustry Division, ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development), Casaccia Research Center, Rome, Italy
| | - Anna-Bella Failloux
- Department of Virology, Institut Pasteur, Arboviruses and Insect Vectors Unit, Paris, France
| | - Maurizio Calvitti
- Biotechnology and Agroindustry Division, ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development), Casaccia Research Center, Rome, Italy
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Niche conservatism of Aedes albopictus and Aedes aegypti - two mosquito species with different invasion histories. Sci Rep 2018; 8:7733. [PMID: 29769652 PMCID: PMC5955948 DOI: 10.1038/s41598-018-26092-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 05/04/2018] [Indexed: 11/29/2022] Open
Abstract
Biological invasions have been associated with niche changes; however, their occurrence is still debated. We assess whether climatic niches between native and non-native ranges have changed during the invasion process using two globally spread mosquitoes as model species, Aedes albopictus and Aedes aegypti. Considering the different time spans since their invasions (>300 vs. 30–40 years), niche changes were expected to be more likely for Ae. aegypti than for Ae. albopictus. We used temperature and precipitation variables as descriptors for the realized climatic niches and different niche metrics to detect niche dynamics in the native and non-native ranges. High niche stability, therefore, no niche expansion but niche conservatism was revealed for both species. High niche unfilling for Ae. albopictus indicates a great potential for further expansion. Highest niche occupancies in non-native ranges occurred either under more temperate (North America, Europe) or tropical conditions (South America, Africa). Aedes aegypti has been able to fill its native climatic niche in the non-native ranges, with very low unfilling. Our results challenge the assumption of rapid evolutionary change of climatic niches as a requirement for global invasions but support the use of native range-based niche models to project future invasion risk on a large scale.
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Kreß A, Oppold AM, Kuch U, Oehlmann J, Müller R. Cold tolerance of the Asian tiger mosquito Aedes albopictus and its response to epigenetic alterations. JOURNAL OF INSECT PHYSIOLOGY 2017; 99:113-121. [PMID: 28396211 DOI: 10.1016/j.jinsphys.2017.04.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 04/03/2017] [Accepted: 04/05/2017] [Indexed: 06/07/2023]
Abstract
Phenotypic plasticity is considered as one of the key traits responsible for the establishment of populations of the invasive mosquito Aedes albopictus, an important vector of viral and parasitic pathogens. The successful spread of this species to higher altitudes and latitudes may be explained by its ability to rapidly induce a heritable low-temperature phenotype (cold hardiness in eggs). As a result of the low genetic diversity of founder populations, an epigenetic short-term mechanism has been suggested as the driver of this diversification. We investigated if random epigenetic alterations promoted the cold hardiness of Ae. albopictus eggs from a transgenerational study of two epigenetic agents (genistein and vinclozolin). To this end, we evaluated changes in lethal time for 50% of pharate larvae (Lt50) from eggs exposed to -2°C in two subsequent generations that used a new dose-response test design. We detected a significant diversification of the cold hardiness of eggs (up to 64.5%) that was associated with the epigenetic change in the two subsequent offspring generations. An effect size of epigenetically modulated cold hardiness of this magnitude is likely to have an impact on the spatial distribution of this species. Our results provide a framework for further research on epigenetic temperature adaptation of invasive species to better explain and predict their rapid range expansions.
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Affiliation(s)
- Aljoscha Kreß
- Senckenberg Biodiversity and Climate Research Centre, Department Adaptation and Climate, Georg-Voigt-Str. 14-16, 60325 Frankfurt am Main, Germany; Goethe University Frankfurt am Main, Department Aquatic Ecotoxicology, Institute for Ecology, Evolution & Diversity, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany.
| | - Ann-Marie Oppold
- Senckenberg Biodiversity and Climate Research Centre, Department Adaptation and Climate, Georg-Voigt-Str. 14-16, 60325 Frankfurt am Main, Germany; Goethe University Frankfurt am Main, Molecular Ecology Group, Institute for Ecology, Evolution & Diversity, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany
| | - Ulrich Kuch
- Goethe University Frankfurt am Main, Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Jörg Oehlmann
- Senckenberg Biodiversity and Climate Research Centre, Department Adaptation and Climate, Georg-Voigt-Str. 14-16, 60325 Frankfurt am Main, Germany; Goethe University Frankfurt am Main, Department Aquatic Ecotoxicology, Institute for Ecology, Evolution & Diversity, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany
| | - Ruth Müller
- Goethe University Frankfurt am Main, Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
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Yang S, Zhang J, Wang S, Zhang X, Liu Y, Xi J. Identification and profiling of miRNAs in overwintering Lissorhoptrus oryzophilus via next-generation sequencing. Cryobiology 2016; 74:68-76. [PMID: 27908684 DOI: 10.1016/j.cryobiol.2016.11.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 09/28/2016] [Accepted: 11/27/2016] [Indexed: 12/19/2022]
Abstract
MicroRNAs (miRNAs) are important regulators of various biological processes in organisms. Insects subjected to abiotic stress can regulate gene expression post-transcriptionally through the use of microRNAs. However, the role of miRNAs in response to cold stress in Lissorhoptrus oryzophilus Kuschel remains unknown. The rice water weevil, L. oryzophilus, is an invasive insect that is able to survive cold winters. To characterize changes in miRNAs in response to overwintering in L. oryzophilus, a comprehensive comparative analysis of microRNAs was performed involving an overwintering and a normal adult. High-throughput Illumina sequencing and bioinformatics analyses revealed 121 conserved and 14 potential novel microRNAs in two small libraries. The novel miRNAs exhibit low expression levels in both libraries. After the expression profiles of the miRNAs in the two libraries were normalized, 36 miRNAs in L. oryzophilus were found to be differentially expressed in response to overwintering. In particular, 14 conserved miRNAs and 6 novel miRNAs were up-regulated, while 15 conserved miRNAs and 1 novel miRNA were down-regulated. In addition, the expression patterns of 11 conserved and potentially novel miRNAs were confirmed by quantitative RT-PCR analysis. Most importantly, this work provides a unique resource of characterized miRNAs for overwintering L. oryzophilus and contributes to studies of the functions of cold-related and other L. oryzophilus miRNAs.
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Affiliation(s)
- Shuang Yang
- College of Plant Science, Jilin University, Changchun 130062, PR China.
| | - Juhong Zhang
- College of Plant Science, Jilin University, Changchun 130062, PR China.
| | - Shang Wang
- College of Plant Science, Jilin University, Changchun 130062, PR China.
| | - Xinxin Zhang
- College of Plant Science, Jilin University, Changchun 130062, PR China.
| | - Yan Liu
- College of Plant Science, Jilin University, Changchun 130062, PR China.
| | - Jinghui Xi
- College of Plant Science, Jilin University, Changchun 130062, PR China.
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