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Armas F, Favila ME, González-Tokman D, Salomão RP, Baena-Díaz F. Experimental Crosses Between Two Dung Beetle Lineages Show Transgressive Segregation in Physiological Traits. NEOTROPICAL ENTOMOLOGY 2023; 52:442-451. [PMID: 36897325 DOI: 10.1007/s13744-023-01034-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 02/16/2023] [Indexed: 05/13/2023]
Abstract
Physiological traits in insects are intrinsically related to their behavior, fitness, and survival and can reflect adaptations to ecological stressors in different environments, leading to population differentiation that may cause hybrid failure. In this study, we characterized five physiological traits related to body condition (body size, body mass, amount of fat, total hemolymph protein, and phenoloxidase activity) in two geographically separated and recently differentiated lineages of Canthon cyanellus LeConte, 1859 within their natural distribution in Mexico. We also performed experimental hybrid crosses between these lineages to better understand the differentiation process and explore the presence of transgressive segregation over physiological traits in them. We found differences between lineages in all traits except body mass, suggesting selective pressures related to different ecological pressures. These differences were also apparent in the transgressive segregation of all traits in F1 and F2 hybrids, except for phenoloxidase activity. Protein content was sexually dimorphic in both parental lineages but was reversed in hybrids, suggesting a genetic basis for the differences between sexes. The negative sign of transgressive segregation for most traits indicates that hybrids would be smaller, thinner, and generally unfit. Our results suggest that these two lineages may undergo postzygotic reproductive isolation, confirming the cryptic diversity of this species complex.
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Affiliation(s)
- Fernanda Armas
- Instituto de Ecología A. C. Xalapa, Veracruz, 91070, México
| | - Mario E Favila
- Instituto de Ecología A. C. Xalapa, Veracruz, 91070, México.
| | | | - Renato P Salomão
- Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, México, México
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2
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Luo D, Liu Q, Wang J, Jashenko R, Ji R. Transcriptome Analysis of the Differentially Expressed Heat-resistant Genes between Calliptamus italicus and Gomphocerus sibiricus. ENVIRONMENTAL ENTOMOLOGY 2023; 52:129-137. [PMID: 36511506 PMCID: PMC9936262 DOI: 10.1093/ee/nvac099] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Indexed: 06/17/2023]
Abstract
Calliptamus italicus and Gomphocerus sibiricus are indicator species in Xinjiang's low-altitude (700-1,900 m) and high-altitude (2,000-3,400 m) grasslands, respectively. C. italicus is tolerant to high-temperature stress, with its semilethal temperature (LT50) being 10.5°C higher than that of G. sibiricus. The two locust species were subjected to high-temperature stress to explore the molecular mechanisms and differences in high temperature tolerance between the two locust species. Next, the next generation sequencing (NGS) data were mapped to reference transcripts obtained using single molecule real Time (SMRT) sequencing to construct a nonparameter transcriptome. The transcriptomic response of these two locust species displayed different patterns. C. italicus had 126 differentially expressed genes (DEGs), with 59 and 67 being significantly up-regulated and down-regulated, respectively. The heat shock protein (Hsp) genes were highly expressed upon two locust species exposure to high-temperature stress, with Hsp70 being expressed the most. G. sibiricus had 86 DEGs, of which 45 were significantly up-regulated and 41 significantly down-regulated. In addition, the expression of the key enzyme encoding gene Myo-inositol oxygenase (MIOX) in inositol degradation was the highest in G. sibiricus. In the KEGG pathway, the biological processes and metabolic pathways were the most enriched pathways in C. italicus and G. sibiricus, respectively. Moreover, the quantitative fluorescence results were consistent with the transcriptome results, implying that the transcriptome results were accurate. The findings in this study provide valuable information for future research exploring the evolution mechanisms of heat resistance in C. italicus and G. sibiricus.
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Affiliation(s)
- Di Luo
- International Research Center for the Collaborative Management of Cross-Border Pests in Central Asia, Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Sciences, Xinjiang Normal University, Urumqi 830054, China
| | - Qian Liu
- International Research Center for the Collaborative Management of Cross-Border Pests in Central Asia, Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Sciences, Xinjiang Normal University, Urumqi 830054, China
| | - Jinfeng Wang
- International Research Center for the Collaborative Management of Cross-Border Pests in Central Asia, Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Sciences, Xinjiang Normal University, Urumqi 830054, China
| | - Roman Jashenko
- Al-Farabi Kazakh National University, Almaty 050038, Kazakhstan
| | - Rong Ji
- Corresponding author, e-mail:
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3
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Martin-Roy R, Nygård E, Nouhaud P, Kulmuni J. Differences in Thermal Tolerance between Parental Species Could Fuel Thermal Adaptation in Hybrid Wood Ants. Am Nat 2021; 198:278-294. [PMID: 34260873 DOI: 10.1086/715012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AbstractGenetic variability is essential for adaptation and could be acquired via hybridization with a closely related lineage. We use ants to investigate thermal adaptation and the link between temperature and genetic variation arising from hybridization. We test for differences in cold and heat tolerance between Finnish Formica polyctena and Formica aquilonia wood ants and their naturally occurring hybrids. Using workers, we find that the parental individuals differ in both cold and heat tolerances and express thermal limits that reflect their global distributions. Hybrids, however, cannot combine thermal tolerance of parental species as they have the same heat tolerance as F. polyctena but not the same cold tolerance as F. aquilonia. We then focus on a single hybrid population to investigate the relationship between temperature variation and genetic variation across 16 years using reproductive individuals. On the basis of the thermal tolerance results, we expected the frequency of putative F. polyctena alleles to increase in warm years and F. aquilonia alleles to increase in cold years. We find support for this in hybrid males but not in hybrid females. These results contribute to understanding the outcomes of hybridization, which may be sex specific or depend on the environment. Furthermore, genetic variability resulting from hybridization could help hybrid wood ants cope with changing thermal conditions.
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4
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Morphological correlates of invasion in Florida cane toad (Rhinella marina) populations: Shortening of legs and reduction in leg asymmetry as populations become established. ACTA OECOLOGICA 2020. [DOI: 10.1016/j.actao.2020.103652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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5
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Diaz F, Kuijper B, Hoyle RB, Talamantes N, Coleman JM, Matzkin LM. Environmental predictability drives adaptive within‐ and transgenerational plasticity of heat tolerance across life stages and climatic regions. Funct Ecol 2020. [DOI: 10.1111/1365-2435.13704] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fernando Diaz
- Department of Entomology University of Arizona Tucson AZ USA
| | - Bram Kuijper
- Center for Ecology and Conservation University of Exeter Penryn UK
| | - Rebecca B. Hoyle
- School of Mathematical Sciences University of Southampton Southampton UK
| | | | | | - Luciano M. Matzkin
- Department of Entomology University of Arizona Tucson AZ USA
- BIO5 InstituteUniversity of Arizona Tucson AZ USA
- Department of Ecology and Evolutionary Biology University of Arizona Tucson AZ USA
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6
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Rank NE, Mardulyn P, Heidl SJ, Roberts KT, Zavala NA, Smiley JT, Dahlhoff EP. Mitonuclear mismatch alters performance and reproductive success in naturally introgressed populations of a montane leaf beetle. Evolution 2020; 74:1724-1740. [PMID: 32246837 DOI: 10.1111/evo.13962] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 02/22/2020] [Accepted: 03/13/2020] [Indexed: 12/11/2022]
Abstract
Coordination between nuclear and mitochondrial genomes is critical to metabolic processes underlying animals' ability to adapt to local environments, yet consequences of mitonuclear interactions have rarely been investigated in populations where individuals with divergent mitochondrial and nuclear genomes naturally interbreed. Genetic variation in the leaf beetle Chrysomela aeneicollis was assessed along a latitudinal thermal gradient in California's Sierra Nevada. Variation at mitochondrial cytochrome oxidase II (COII) and the nuclear gene phosphoglucose isomerase (PGI) shows concordance and was significantly greater along a 65 km transect than 10 other loci. STRUCTURE analyses using neutral loci identified a southern and northern subpopulation, which interbreed in the central drainage Bishop Creek. COII and PGI were used as indicators of mitochondrial and nuclear genetic variation in field and laboratory experiments conducted on beetles from this admixed population. Fecundity, larval development rate, running speed and male mating frequency were higher for beetles with geographically "matched" than "mismatched" mitonuclear genotypes. Effects of mitonuclear mismatch were largest for individuals with northern nuclear genotypes possessing southern mitochondria and were most pronounced after heat treatment or at high elevation. These findings suggest that mitonuclear incompatibility diminishes performance and reproductive success in nature, effects that could intensify at environmental extremes.
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Affiliation(s)
- Nathan E Rank
- Department of Biology, Sonoma State University, Rohnert Park, California, 94928.,White Mountain Research Center, University of California, Bishop, California, 93514
| | - Patrick Mardulyn
- Evolutionary Biology and Ecology, Université Libre de Bruxelles, Brussels, 1050, Belgium
| | - Sarah J Heidl
- Department of Biology, Sonoma State University, Rohnert Park, California, 94928.,White Mountain Research Center, University of California, Bishop, California, 93514
| | - Kevin T Roberts
- Department of Biology, Sonoma State University, Rohnert Park, California, 94928.,White Mountain Research Center, University of California, Bishop, California, 93514.,Department of Integrative Biology, University of California, Berkeley, Berkeley, California, 94720
| | - Nicolas A Zavala
- White Mountain Research Center, University of California, Bishop, California, 93514.,Department of Biology, Santa Clara University, Santa Clara, California, 95053
| | - John T Smiley
- White Mountain Research Center, University of California, Bishop, California, 93514
| | - Elizabeth P Dahlhoff
- White Mountain Research Center, University of California, Bishop, California, 93514.,Department of Biology, Santa Clara University, Santa Clara, California, 95053
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Moghadam NN, Kurbalija Novicic Z, Pertoldi C, Kristensen TN, Bahrndorff S. Effects of photoperiod on life-history and thermal stress resistance traits across populations of Drosophila subobscura. Ecol Evol 2019; 9:2743-2754. [PMID: 30891213 PMCID: PMC6405525 DOI: 10.1002/ece3.4945] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/29/2018] [Accepted: 01/08/2019] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION Organisms use environmental cues to match their phenotype with the future availability of resources and environmental conditions. Changes in the magnitude and frequency of environmental cues such as photoperiod and temperature along latitudes can be used by organisms to predict seasonal changes. While the role of temperature variation on the induction of plastic and seasonal responses is well established, the importance of photoperiod for predicting seasonal changes is less explored. MATERIALS AND METHODS Here we studied changes in life-history and thermal stress resistance traits in Drosophila subobscura in response to variation in photoperiod (6:18, 12:12 and 18:6 light:dark cycles) mimicking seasonal variations in day length. The populations of D. subobscura were collected from five locations along a latitudinal gradient (from North Africa and Europe). These populations were exposed to different photoperiods for two generations, whereafter egg-to-adult viability, productivity, dry body weight, thermal tolerance, and starvation resistance were assessed. RESULTS We found strong effects of photoperiod, origin of populations, and their interactions on life-history and stress resistance traits. Thermal resistance varied between the populations and the effect of photoperiod depended on the trait and the method applied for the assessment of thermal resistance. PERSPECTIVES Our results show a strong effect of the origin of population and photoperiod on a range of fitness-related traits and provide evidence for local adaptation to environmental cues (photoperiod by population interaction). The findings emphasize an important and often neglected role of photoperiod in studies on thermal resistance and suggest that cues induced by photoperiod may provide some buffer enabling populations to cope with a more variable and unpredictable future climate.
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Affiliation(s)
- Neda N. Moghadam
- Department of Chemistry and BioscienceAalborg UniversityAalborg EDenmark
- Department of Biological and Environmental Science, Centre of Excellence in Biological InteractionsUniversity of JyvaskylaJyväskyläFinland
| | - Zorana Kurbalija Novicic
- Animal Ecology, Department of Ecology and Genetics, Evolutionary Biology CenterUppsala UniversityUppsalaSweden
| | - Cino Pertoldi
- Department of Chemistry and BioscienceAalborg UniversityAalborg EDenmark
- Aalborg ZooAalborgDenmark
| | - Torsten N. Kristensen
- Department of Chemistry and BioscienceAalborg UniversityAalborg EDenmark
- Department of BioscienceAarhus UniversityAarhus CDenmark
| | - Simon Bahrndorff
- Department of Chemistry and BioscienceAalborg UniversityAalborg EDenmark
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8
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Dahlhoff EP, Dahlhoff VC, Grainger CA, Zavala NA, Otepola‐Bello D, Sargent BA, Roberts KT, Heidl SJ, Smiley JT, Rank NE. Getting chased up the mountain: High elevation may limit performance and fitness characters in a montane insect. Funct Ecol 2019. [DOI: 10.1111/1365-2435.13286] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elizabeth P. Dahlhoff
- Department of Biology Santa Clara University Santa Clara California
- White Mountain Research Center University of California Bishop California
| | - Victoria C. Dahlhoff
- White Mountain Research Center University of California Bishop California
- Department of Biology Sonoma State University Rohnert Park California
| | - Corrine A. Grainger
- Department of Biology Santa Clara University Santa Clara California
- White Mountain Research Center University of California Bishop California
| | - Nicolas A. Zavala
- Department of Biology Santa Clara University Santa Clara California
- White Mountain Research Center University of California Bishop California
| | | | - Brynn A. Sargent
- Department of Biology Santa Clara University Santa Clara California
- White Mountain Research Center University of California Bishop California
| | - Kevin T. Roberts
- White Mountain Research Center University of California Bishop California
- Department of Biology Sonoma State University Rohnert Park California
| | - Sarah J. Heidl
- White Mountain Research Center University of California Bishop California
- Department of Biology Sonoma State University Rohnert Park California
| | - John T. Smiley
- White Mountain Research Center University of California Bishop California
| | - Nathan E. Rank
- White Mountain Research Center University of California Bishop California
- Department of Biology Sonoma State University Rohnert Park California
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9
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Franke K, Karl I, Centeno TP, Feldmeyer B, Lassek C, Oostra V, Riedel K, Stanke M, Wheat CW, Fischer K. Effects of adult temperature on gene expression in a butterfly: identifying pathways associated with thermal acclimation. BMC Evol Biol 2019; 19:32. [PMID: 30674272 PMCID: PMC6345059 DOI: 10.1186/s12862-019-1362-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 01/14/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Phenotypic plasticity is a pervasive property of all organisms and considered to be of key importance for dealing with environmental variation. Plastic responses to temperature, which is one of the most important ecological factors, have received much attention over recent decades. A recurrent pattern of temperature-induced adaptive plasticity includes increased heat tolerance after exposure to warmer temperatures and increased cold tolerance after exposure to cooler temperatures. However, the mechanisms underlying these plastic responses are hitherto not well understood. Therefore, we here investigate effects of adult acclimation on gene expression in the tropical butterfly Bicyclus anynana, using an RNAseq approach. RESULTS We show that several antioxidant markers (e.g. peroxidase, cytochrome P450) were up-regulated at a higher temperature compared with a lower adult temperature, which might play an important role in the acclamatory responses subsequently providing increased heat tolerance. Furthermore, several metabolic pathways were up-regulated at the higher temperature, likely reflecting increased metabolic rates. In contrast, we found no evidence for a decisive role of the heat shock response. CONCLUSIONS Although the important role of antioxidant defence mechanisms in alleviating detrimental effects of oxidative stress is firmly established, we speculate that its potentially important role in mediating heat tolerance and survival under stress has been underestimated thus far and thus deserves more attention.
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Affiliation(s)
- Kristin Franke
- Zoological Institute and Museum, University of Greifswald, D-17489, Greifswald, Germany
| | - Isabell Karl
- Zoological Institute and Museum, University of Greifswald, D-17489, Greifswald, Germany
| | - Tonatiuh Pena Centeno
- Institute for Mathematics and Computer Science, University of Greifswald, D-17487, Greifswald, Germany
| | - Barbara Feldmeyer
- Senckenberg Biodiversity and Climate Research Centre (BiK-F), Molecular Ecology Group, D-60325, Frankfurt am Main, Germany
| | - Christian Lassek
- Institute for Microbiology, University of Greifswald, D-17489, Greifswald, Germany
| | - Vicencio Oostra
- Department of Genetics, Evolution and Environment, University College London, WC1E 6BT, London, UK
| | - Katharina Riedel
- Institute for Microbiology, University of Greifswald, D-17489, Greifswald, Germany
| | - Mario Stanke
- Institute for Mathematics and Computer Science, University of Greifswald, D-17487, Greifswald, Germany
| | | | - Klaus Fischer
- Zoological Institute and Museum, University of Greifswald, D-17489, Greifswald, Germany. .,Present address: Institute for Integrated Natural Sciences, University Koblenz-Landau, Universitätsstraße 1, D-56070, Koblenz, Germany.
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10
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Gamboa M, Tsuchiya MC, Matsumoto S, Iwata H, Watanabe K. Differences in protein expression among five species of stream stonefly (Plecoptera) along a latitudinal gradient in Japan. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2017; 96:e21422. [PMID: 28925517 DOI: 10.1002/arch.21422] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Proteome variation among natural populations along an environmental gradient may provide insights into how the biological functions of species are related to their local adaptation. We investigated protein expression in five stream stonefly species from four geographic regions along a latitudinal gradient in Japan with varying climatic conditions. The extracted proteins were separated by two-dimensional gel electrophoresis and identified by matrix-assisted laser desorption/ionization of time-of-flight (MALDI TOF/TOF), yielding 446 proteins. Low interspecies variation in the proteome profiles was observed among five species within geographical regions, presumably due to the co-occurring species sharing the environments. However, large spatial variations in protein expression were found among four geographic regions, suggesting strong regulation of protein expression in heterogeneous environments, where the spatial variations were positively correlated with water temperature. We identified 21 unique proteins expressed specifically in a geographical region and six common proteins expressed throughout all regions. In warmer regions, metabolic proteins were upregulated, whereas proteins related to cold stress, the photoperiod, and mating were downregulated. Oxygen-related and energy-production proteins were upregulated in colder regions with higher altitudes. Thus, our proteomic approach is useful for identifying and understanding important biological functions related to local adaptations by populations of stoneflies.
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Affiliation(s)
- Maribet Gamboa
- Department of Civil and Environmental Engineering, Ehime University, Matsuyama, Japan
| | - Maria Claret Tsuchiya
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Japan
- Institute of Biological Sciences, University of the Philippines, Los Baños, Laguna, Philippines
| | - Suguru Matsumoto
- Department of Civil and Environmental Engineering, Ehime University, Matsuyama, Japan
| | - Hisato Iwata
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Japan
| | - Kozo Watanabe
- Department of Civil and Environmental Engineering, Ehime University, Matsuyama, Japan
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Japan
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11
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Jesus TF, Moreno JM, Repolho T, Athanasiadis A, Rosa R, Almeida-Val VMF, Coelho MM. Protein analysis and gene expression indicate differential vulnerability of Iberian fish species under a climate change scenario. PLoS One 2017; 12:e0181325. [PMID: 28719655 PMCID: PMC5515415 DOI: 10.1371/journal.pone.0181325] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 06/29/2017] [Indexed: 11/19/2022] Open
Abstract
Current knowledge on the biological responses of freshwater fish under projected scenarios of climate change remains limited. Here, we examine differences in the protein configuration of two endemic Iberian freshwater fish species, Squalius carolitertii and the critically endangered S. torgalensis that inhabit in the Atlantic-type northern and in the Mediterranean-type southwestern regions, respectively. We performed protein structure modeling of fourteen genes linked to protein folding, energy metabolism, circadian rhythms and immune responses. Structural differences in proteins between the two species were found for HSC70, FKBP52, HIF1α and GPB1. For S. torgalensis, besides structural differences, we found higher thermostability for two proteins (HSP90 and GBP1), which can be advantageous in a warmer environment. Additionally, we investigated how these species might respond to projected scenarios of 3° climate change warming, acidification (ΔpH = -0.4), and their combined effects. Significant changes in gene expression were observed in response to all treatments, particularly under the combined warming and acidification. While S. carolitertii presented changes in gene expression for multiple proteins related to folding (hsp90aa1, hsc70, fkbp4 and stip1), only one such gene was altered in S. torgalensis (stip1). However, S. torgalensis showed a greater capacity for energy production under both the acidification and combined scenarios by increasing cs gene expression and maintaining ldha gene expression in muscle. Overall, these findings suggest that S. torgalensis is better prepared to cope with projected climate change. Worryingly, under the simulated scenarios, disturbances to circadian rhythm and immune system genes (cry1aa, per1a and gbp1) raise concerns for the persistence of both species, highlighting the need to consider multi-stressor effects when evaluating climate change impacts upon fish. This work also highlights that assessments of the potential of endangered freshwater species to cope with environmental change are crucial to help decision-makers adopt future conservation strategies.
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Affiliation(s)
- Tiago F. Jesus
- Centro de Ecologia Evolução e Alterações Ambientais, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- * E-mail:
| | - João M. Moreno
- Centro de Ecologia Evolução e Alterações Ambientais, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Tiago Repolho
- Laboratório Marítimo da Guia, MARE—Centro de Ciências do Mar e do Ambiente, Faculdade de Ciências da Universidade de Lisboa, Av. Nossa Senhora do Cabo, Cascais, Portugal
| | | | - Rui Rosa
- Laboratório Marítimo da Guia, MARE—Centro de Ciências do Mar e do Ambiente, Faculdade de Ciências da Universidade de Lisboa, Av. Nossa Senhora do Cabo, Cascais, Portugal
| | - Vera M. F. Almeida-Val
- Laboratório de Ecofisiologia e Evolução Molecular, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, AM, Brasil
| | - Maria M. Coelho
- Centro de Ecologia Evolução e Alterações Ambientais, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
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Abstract
The biological activity and geographical distribution of honey bees is strongly temperature-dependent, due to their ectothermic physiology. In China, the endemic Apis cerana cerana exhibits stronger cold hardiness than Western honey bees, making the former species important pollinators of winter-flowering plants. Although studies have examined behavioral and physiological mechanisms underlying cold resistance in bees, data are scarce regarding the exact molecular mechanisms. Here, we investigated gene expression in A. c. cerana under two temperature treatments, using transcriptomic analysis to identify differentially expressed genes (DEGs) and relevant biological processes, respectively. Across the temperature treatments, 501 DEGs were identified. A gene ontology analysis showed that DEGs were enriched in pathways related to sugar and amino acid biosynthesis and metabolism, as well as calcium ion channel activity. Additionally, heat shock proteins, zinc finger proteins, and serine/threonine-protein kinases were differentially expressed between the two treatments. The results of this study provide a general digital expression profile of thermoregulation genes responding to cold hardiness in A. c. cerana. Our data should prove valuable for future research on cold tolerance mechanisms in insects, and may be beneficial in breeding efforts to improve bee hardiness.
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13
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Molet M, Péronnet R, Couette S, Canovas C, Doums C. Effect of temperature and social environment on worker size in the ant Temnothorax nylanderi. J Therm Biol 2017; 67:22-29. [PMID: 28558933 DOI: 10.1016/j.jtherbio.2017.04.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 04/17/2017] [Accepted: 04/28/2017] [Indexed: 12/23/2022]
Abstract
Warm temperatures decrease insect developmental time and body size. Social life could buffer external environmental variations, especially in large social groups, either through behavioral regulation and compensation or through specific nest architecture. Mean worker size and distribution of worker sizes within colonies are important parameters affecting colony productivity as worker size is linked to division of labor in insect societies. In this paper, we investigate the effect of stressful warm temperatures and the role of social environment (colony size and size of nestmate workers) on the mean size and size variation of laboratory-born workers in the small European ant Temnothorax nylanderi. To do so, we reared field-collected colonies under medium or warm temperature treatments after having marked the field-born workers and removed the brood except for 30 first instar larvae. Warm temperature resulted in the production of fewer workers and a higher adult mortality, confirming that this regime was stressful for the ants. T. nylanderi ants followed the temperature size rule observed in insects, with a decreased developmental time and mean size under warm condition. Social environment appeared to play an important role as we observed that (i) larger colonies buffered the effect of temperature better than smaller ones (ii) colonies with larger workers produced larger workers whatever the rearing temperature and (iii) the coefficient of variation of worker size was similar in the field and under medium laboratory temperature. This suggests that worker size variation is not primarily due to seasonal environmental fluctuations in the field. Finally, we observed a higher coefficient of variation of worker size under warm temperature. We propose that this results from a disruption of social regulation, i.e. the control of nestmate workers over developing larvae and adult worker size, under stressful conditions.
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Affiliation(s)
- Mathieu Molet
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institute of Ecology and Environmental Sciences of Paris UMR7618, 4 Place Jussieu, 75005 Paris, France.
| | - Romain Péronnet
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institute of Ecology and Environmental Sciences of Paris UMR7618, 4 Place Jussieu, 75005 Paris, France.
| | - Sébastien Couette
- Biogéosciences, UMR CNRS 6282, Univ Bourgogne Franche-Comté, 6 bv Gabriel, 21000 Dijon, France; EPHE, PSL Research University, 75014 Paris, France.
| | - Christophe Canovas
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institute of Ecology and Environmental Sciences of Paris UMR7618, 4 Place Jussieu, 75005 Paris, France.
| | - Claudie Doums
- EPHE, PSL Research University, 75014 Paris, France; Institut de Systématique, Évolution, Biodiversité (ISYEB), EPHE, CNRS, UPMC Univ Paris 06, MNHN, Sorbonne Universités, 45 rue Buffon, CP 39, 75005 Paris, France.
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14
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Yang LN, Zhu W, Wu EJ, Yang C, Thrall PH, Burdon JJ, Jin LP, Shang LP, Zhan J. Trade-offs and evolution of thermal adaptation in the Irish potato famine pathogen Phytophthora infestans. Mol Ecol 2016; 25:4047-58. [PMID: 27288627 DOI: 10.1111/mec.13727] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 05/23/2016] [Accepted: 05/26/2016] [Indexed: 01/07/2023]
Abstract
Temperature is one of the most important environmental parameters with crucial impacts on nearly all biological processes. Due to anthropogenic activity, average air temperatures are expected to increase by a few degrees in coming decades, accompanied by an increased occurrence of extreme temperature events. Such global trends are likely to have various major impacts on human society through their influence on natural ecosystems, food production and biotic interactions, including diseases. In this study, we used a combination of statistical genetics, experimental evolution and common garden experiments to investigate the evolutionary potential for thermal adaptation in the potato late blight pathogen, Phytophthora infestans, and infer its likely response to changing temperatures. We found a trade-off associated with thermal adaptation to heterogeneous environments in P. infestans, with the degree of the trade-off peaking approximately at the pathogen's optimum growth temperature. A genetic trade-off in thermal adaptation was also evidenced by the negative association between a strain's growth rate and its thermal range for growth, and warm climates selecting for a low pathogen growth rate. We also found a mirror effect of phenotypic plasticity and genetic adaptation on growth rate. At below the optimum, phenotypic plasticity enhances pathogen's growth rate but nature selects for slower growing genotypes when temperature increases. At above the optimum, phenotypic plasticity reduces pathogen's growth rate but natural selection favours for faster growing genotypes when temperature increases further. We conclude from these findings that the growth rate of P. infestans will only be marginally affected by global warming.
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Affiliation(s)
- Li-Na Yang
- Fujian Key Lab of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Wen Zhu
- Fujian Key Lab of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - E-Jiao Wu
- Fujian Key Lab of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ce Yang
- Fujian Key Lab of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Peter H Thrall
- CSIRO Agriculture, PO Box 1600, Canberra, Australian Capital Territory, 2601, Australia
| | - Jeremy J Burdon
- CSIRO Agriculture, PO Box 1600, Canberra, Australian Capital Territory, 2601, Australia
| | - Li-Ping Jin
- Institute of Flowers and Vegetables, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Li-Ping Shang
- Fujian Key Lab of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jiasui Zhan
- Key Lab for Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
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15
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Yu SH, Yang P, Sun T, Qi Q, Wang XQ, Chen XM, Feng Y, Liu BW. Transcriptomic and proteomic analyses on the supercooling ability and mining of antifreeze proteins of the Chinese white wax scale insect. INSECT SCIENCE 2016; 23:430-437. [PMID: 26799455 DOI: 10.1111/1744-7917.12320] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/17/2016] [Indexed: 06/05/2023]
Abstract
The Chinese white wax scale insect, Ericerus pela, can survive at extremely low temperatures, and some overwintering individuals exhibit supercooling at temperatures below -30°C. To investigate the deep supercooling ability of E. pela, transcriptomic and proteomic analyses were performed to delineate the major gene and protein families responsible for the deep supercooling ability of overwintering females. Gene Ontology (GO) classification and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis indicated that genes involved in the mitogen-activated protein kinase, calcium, and PI3K-Akt signaling pathways and pathways associated with the biosynthesis of soluble sugars, sugar alcohols and free amino acids were dominant. Proteins responsible for low-temperature stress, such as cold acclimation proteins, glycerol biosynthesis-related enzymes and heat shock proteins (HSPs) were identified. However, no antifreeze proteins (AFPs) were identified through sequence similarity search methods. A random forest approach identified 388 putative AFPs in the proteome. The AFP gene ep-afp was expressed in Escherichia coli, and the expressed protein exhibited a thermal hysteresis activity of 0.97°C, suggesting its potential role in the deep supercooling ability of E. pela.
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Affiliation(s)
| | | | - Tao Sun
- Research Institute of Resources Insects, Chinese Academy of Forestry, Key Laboratory of Cultivating and Utilization of Resources Insects of State Forestry Administration, Kunming, China
| | - Qian Qi
- Research Institute of Resources Insects, Chinese Academy of Forestry, Key Laboratory of Cultivating and Utilization of Resources Insects of State Forestry Administration, Kunming, China
| | - Xue-Qing Wang
- Research Institute of Resources Insects, Chinese Academy of Forestry, Key Laboratory of Cultivating and Utilization of Resources Insects of State Forestry Administration, Kunming, China
| | - Xiao-Ming Chen
- Research Institute of Resources Insects, Chinese Academy of Forestry, Key Laboratory of Cultivating and Utilization of Resources Insects of State Forestry Administration, Kunming, China
| | - Ying Feng
- Research Institute of Resources Insects, Chinese Academy of Forestry, Key Laboratory of Cultivating and Utilization of Resources Insects of State Forestry Administration, Kunming, China
| | - Bo-Wen Liu
- Research Institute of Resources Insects, Chinese Academy of Forestry, Key Laboratory of Cultivating and Utilization of Resources Insects of State Forestry Administration, Kunming, China
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16
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Kingsolver JG, Woods HA. Beyond Thermal Performance Curves: Modeling Time-Dependent Effects of Thermal Stress on Ectotherm Growth Rates. Am Nat 2016; 187:283-94. [DOI: 10.1086/684786] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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17
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Papot C, Cascella K, Toullec JY, Jollivet D. Divergent ecological histories of two sister Antarctic krill species led to contrasted patterns of genetic diversity in their heat-shock protein (hsp70) arsenal. Ecol Evol 2016; 6:1555-75. [PMID: 27087928 PMCID: PMC4775515 DOI: 10.1002/ece3.1989] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 12/28/2015] [Accepted: 01/03/2016] [Indexed: 11/12/2022] Open
Abstract
The Arctic and the Antarctic Peninsula are currently experiencing some of the most rapid rates of ocean warming on the planet. This raises the question of how the initial adaptation to extreme cold temperatures was put in place and whether or not directional selection has led to the loss of genetic variation at key adaptive systems, and thus polar species’ (re)adaptability to higher temperatures. In the Southern Ocean, krill represents the most abundant fauna and is a critical member at the base of the Antarctic food web. To better understand the role of selection in shaping current patterns of polymorphisms, we examined genetic diversity of the cox‐1 and hsp70 genes by comparing two closely related species of Euphausiid that differ in ecology. Results on mtcox‐1 agreed with previous studies, indicating high and similar effective population sizes. However, a coalescent‐based approach on hsp70 genes highlighted the role of positive selection and past demographic changes in their recent evolution. Firstly, some form of balancing selection was acting on the inducible isoform C, which reflected the maintenance of an ancestral adaptive polymorphism in both species. Secondly, E. crystallorophias seems to have lost most of its hsp70 diversity because of a population crash and/or directional selection to cold. Nonsynonymous diversities were always greater in E. superba, suggesting that it might have evolved under more heterogeneous conditions. This can be linked to species’ ecology with E. superba living in more variable pelagic conditions, while E. crystallorophias is strictly associated with continental shelves and sea ice.
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Affiliation(s)
- Claire Papot
- Université de Lille 1 CNRS UMR 8198 Groupe 'Ecoimmunology of Marine Annelids' Bât SN2, 1er étage porte 113 59655 Villeneuve d'Ascq France
| | - Kévin Cascella
- CNRS UMR 7144 Equipe ABICE Station Biologique de Roscoff 29682 Roscoff France; Laboratoire 'Adaptation et Diversité en Milieu Marin' UPMC Station Biologique 29682 Roscoff France
| | - Jean-Yves Toullec
- CNRS UMR 7144 Equipe ABICE Station Biologique de Roscoff 29682 Roscoff France; Laboratoire 'Adaptation et Diversité en Milieu Marin' UPMC Station Biologique 29682 Roscoff France
| | - Didier Jollivet
- CNRS UMR 7144 Equipe ABICE Station Biologique de Roscoff 29682 Roscoff France; Laboratoire 'Adaptation et Diversité en Milieu Marin' UPMC Station Biologique 29682 Roscoff France
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18
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Wong SC, Oksanen A, Mattila ALK, Lehtonen R, Niitepõld K, Hanski I. Effects of ambient and preceding temperatures and metabolic genes on flight metabolism in the Glanville fritillary butterfly. JOURNAL OF INSECT PHYSIOLOGY 2016; 85:23-31. [PMID: 26658138 PMCID: PMC4739062 DOI: 10.1016/j.jinsphys.2015.11.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 11/26/2015] [Accepted: 11/30/2015] [Indexed: 06/05/2023]
Abstract
Flight is essential for foraging, mate searching and dispersal in many insects, but flight metabolism in ectotherms is strongly constrained by temperature. Thermal conditions vary greatly in natural populations and may hence restrict fitness-related activities. Working on the Glanville fritillary butterfly (Melitaea cinxia), we studied the effects of temperature experienced during the first 2 days of adult life on flight metabolism, genetic associations between flight metabolic rate and variation in candidate metabolic genes, and genotype-temperature interactions. The maximal flight performance was reduced by 17% by 2 days of low ambient temperature (15 °C) prior to the flight trial, mimicking conditions that butterflies commonly encounter in nature. A SNP in phosphoglucose isomerase (Pgi) had a significant association on flight metabolic rate in males and a SNP in triosephosphate isomerase (Tpi) was significantly associated with flight metabolic rate in females. In the Pgi SNP, AC heterozygotes had higher flight metabolic rate than AA homozygotes following low preceding temperature, but the trend was reversed following high preceding temperature, consistent with previous results on genotype-temperature interaction for this SNP. We suggest that these results on 2-day old butterflies reflect thermal effect on the maturation of flight muscles. These results highlight the consequences of variation in thermal conditions on the time scale of days, and they contribute to a better understanding of the complex dynamics of flight metabolism and flight-related activities under conditions that are relevant for natural populations living under variable thermal conditions.
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Affiliation(s)
- Swee Chong Wong
- Department of Biosciences, P.O. Box 65, 00014 University of Helsinki, Finland.
| | - Alma Oksanen
- Department of Biosciences, P.O. Box 65, 00014 University of Helsinki, Finland; Department of Biology, P.O. Box 111, 80101 University of Eastern Finland, Joensuu, Finland
| | - Anniina L K Mattila
- Department of Biosciences, P.O. Box 65, 00014 University of Helsinki, Finland
| | - Rainer Lehtonen
- Department of Biosciences, P.O. Box 65, 00014 University of Helsinki, Finland; Institute of Biomedicine & Genome-Scale Biology Research Program Biomedicum 1, P.O. Box 63, 00014 University of Helsinki, Finland
| | - Kristjan Niitepõld
- Department of Biosciences, P.O. Box 65, 00014 University of Helsinki, Finland
| | - Ilkka Hanski
- Department of Biosciences, P.O. Box 65, 00014 University of Helsinki, Finland
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19
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Transcriptome profiling of two Iberian freshwater fish exposed to thermal stress. J Therm Biol 2016; 55:54-61. [DOI: 10.1016/j.jtherbio.2015.11.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 11/13/2015] [Accepted: 11/26/2015] [Indexed: 01/05/2023]
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20
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Kingsolver JG, MacLean HJ, Goddin SB, Augustine KE. Plasticity of upper thermal limits to acute and chronic temperature variation in Manduca sexta larvae. J Exp Biol 2016; 219:1290-4. [DOI: 10.1242/jeb.138321] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 02/24/2016] [Indexed: 11/20/2022]
Abstract
In many ectotherms, exposure to high temperatures can improve subsequent tolerance to higher temperatures. However, the differential effects of single, repeated, or continuous exposure to high temperatures are less clear. We measured the effects of single heat shocks and of diurnally fluctuating or constant rearing temperatures on the critical thermal maximum temperatures (CTmax) for final instar larvae of Manduca sexta. Brief (2h) heat shocks at temperatures of 35°C and above significantly increased CTmax relative to control temperatures (25°C). Increasing mean temperatures (from 25 to 30°C) or greater diurnal fluctuations (from constant to ±10°C) during larval development also significantly increased CTmax. Combining these data showed that repeated or continuous temperature exposure during development improved heat tolerance beyond the effects of a single exposure to the same maximum temperature. These results suggest that both acute and chronic temperature exposure can result in adaptive plasticity of upper thermal limits.
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Affiliation(s)
- Joel G. Kingsolver
- Department of Biology, University of North Carolina, Chapel Hill NC 27599, USA
| | - Heidi J. MacLean
- Department of Biology, University of North Carolina, Chapel Hill NC 27599, USA
| | - Silvan B. Goddin
- Department of Biology, University of North Carolina, Chapel Hill NC 27599, USA
| | - Kate E. Augustine
- Department of Biology, University of North Carolina, Chapel Hill NC 27599, USA
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21
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Malewski T, Bogdanowicz W, Durska E, Łoś M, Kamiński M, Kowalewska K. Expression profiling of heat shock genes in a scuttle fly Megaselia scalaris (Diptera, Phoridae). ACTA ACUST UNITED AC 2015; 323:704-713. [PMID: 26477614 DOI: 10.1002/jez.1963] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 07/08/2015] [Accepted: 08/01/2015] [Indexed: 11/10/2022]
Abstract
The Phoridae are a family of small, hump-backed flies, dominating in post-fire areas. Some of these flies are probably able to survive a fire as an egg, larva, or pupa, and may be adapted to the fire-altered environment at the genomic level. In this study, we describe the influence of short-term temperature treatment on the expression of seven heat shock protein genes in the third-instar larvae and imagoes of a scuttle fly Megaselia scalaris-one of the cosmopolitan and polyphagous phorids. In terms of the response to temperature treatment, these genes tested against tubulin as a reference split into three classes. The first class consists of hsp22 (larvae), hsp23 (larvae), and hsp26 (both larvae and imagoes), and is upregulated at the lowest temperature (33°C). The second class consists of hsp22 (imagoes), hsp23 (imagoes), hsp40 (larvae and imagoes), and hsp70 (larvae and imagoes), and is upregulated or induced at 37°C. Expression of genes of the third class (hsp27 and hsp83-larvae and imagoes) increased after treatment at 41°C temperature. Expression of the first two classes of genes occurred at a temperature lower than the LT50 of larvae and imagoes. The fact that there is a gap between the temperature upregulating hsp genes and the temperature leading to the loss of viability suggests that not only the level of hsp gene expression but also the temperature at which gene expression increased is important in an adaptation of M. scalaris to harsh environment. J. Exp. Zool. 323A: 704-713, 2015. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Tadeusz Malewski
- Museum and Institute of Zoology, Polish Academy of Sciences, Warszawa, Poland
| | - Wiesław Bogdanowicz
- Museum and Institute of Zoology, Polish Academy of Sciences, Warszawa, Poland
| | - Ewa Durska
- Museum and Institute of Zoology, Polish Academy of Sciences, Warszawa, Poland
| | - Marta Łoś
- Museum and Institute of Zoology, Polish Academy of Sciences, Warszawa, Poland
| | - Marcin Kamiński
- Museum and Institute of Zoology, Polish Academy of Sciences, Warszawa, Poland
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22
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Boychuk EC, Smiley JT, Dahlhoff EP, Bernards MA, Rank NE, Sinclair BJ. Cold tolerance of the montane Sierra leaf beetle, Chrysomela aeneicollis. JOURNAL OF INSECT PHYSIOLOGY 2015; 81:157-166. [PMID: 26231921 DOI: 10.1016/j.jinsphys.2015.07.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 07/20/2015] [Accepted: 07/27/2015] [Indexed: 06/04/2023]
Abstract
Small ectothermic animals living at high altitude in temperate latitudes are vulnerable to lethal cold throughout the year. Here we investigated the cold tolerance of the leaf beetle Chrysomela aeneicollis living at high elevation in California's Sierra Nevada mountains. These insects spend over half their life cycle overwintering, and may therefore be vulnerable to winter cold, and prior studies have demonstrated that survival is reduced by exposure to summertime cold. We identify overwintering microhabitat of this insect, describe cold tolerance strategies in all life stages, and use microclimate data to determine the importance of snow cover and microhabitat buffering for overwinter survival. Cold tolerance varies among life history stages and is typically correlated with microhabitat temperature: cold hardiness is lowest in chill-susceptible larvae, and highest in freeze-tolerant adults. Hemolymph osmolality is higher in quiescent (overwintering) than summer adults, primarily, but not exclusively, due to elevated hemolymph glycerol. In nature, adult beetles overwinter primarily in leaf litter and suffer high mortality if early, unseasonable cold prevents them from entering this refuge. These data suggest that cold tolerance is tightly linked to life stage. Thus, population persistence of montane insects may become problematic as climate becomes more unpredictable and climate change uncouples the phenology of cold tolerance and development from the timing of extreme cold events.
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Affiliation(s)
- Evelyn C Boychuk
- Department of Biology, The University of Western Ontario, London, ON N6A 5B7, Canada; White Mountain Research Center, 3000 E. Line Street, Bishop, CA 93514, United States
| | - John T Smiley
- White Mountain Research Center, 3000 E. Line Street, Bishop, CA 93514, United States
| | - Elizabeth P Dahlhoff
- White Mountain Research Center, 3000 E. Line Street, Bishop, CA 93514, United States; Department of Biology, Santa Clara University, Santa Clara, CA 95053, United States
| | - Mark A Bernards
- Department of Biology, The University of Western Ontario, London, ON N6A 5B7, Canada
| | - Nathan E Rank
- White Mountain Research Center, 3000 E. Line Street, Bishop, CA 93514, United States; Department of Biology, Sonoma State University, Rohnert Park, CA 94928, United States
| | - Brent J Sinclair
- Department of Biology, The University of Western Ontario, London, ON N6A 5B7, Canada.
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23
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Luo S, Ahola V, Shu C, Xu C, Wang R. Heat shock protein 70 gene family in the Glanville fritillary butterfly and their response to thermal stress. Gene 2015; 556:132-41. [DOI: 10.1016/j.gene.2014.11.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 11/05/2014] [Accepted: 11/20/2014] [Indexed: 12/13/2022]
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24
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Lefort MC, Brown S, Boyer S, Worner S, Armstrong K. The PGI enzyme system and fitness response to temperature as a measure of environmental tolerance in an invasive species. PeerJ 2014; 2:e676. [PMID: 25469320 PMCID: PMC4250065 DOI: 10.7717/peerj.676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 11/03/2014] [Indexed: 12/02/2022] Open
Abstract
In the field of invasion ecology, the determination of a species’ environmental tolerance, is a key parameter in the prediction of its potential distribution, particularly in the context of global warming. In poikilothermic species such as insects, temperature is often considered the most important abiotic factor that affects numerous life-history and fitness traits through its effect on metabolic rate. Therefore the response of an insect to challenging temperatures may provide key information as to its climatic and therefore spatial distribution. Variation in the phosphoglucose-6-isomerase (PGI) metabolic enzyme-system has been proposed in some insects to underlie their relative fitness, and is recognised as a key enzyme in their thermal adaptation. However, in this context it has not been considered as a potential mechanism contributing to a species invasive cability. The present study aimed to compare the thermal tolerance of an invasive scarabaeid beetle, Costelytra zealandica (White) with that of the closely related, and in part sympatrically occurring, congeneric non-invasive species C. brunneum (Broun), and to consider whether any correlation with particular PGI genotypes was apparent. Third instar larvae of each species were exposed to one of three different temperatures (10, 15 and 20 °C) over six weeks and their fitness (survival and growth rate) measured and PGI phenotyping performed via cellulose acetate electrophoresis. No consistent relationship between PGI genotypes and fitness was detected, suggesting that PGI may not be contributing to the invasion success and pest status of C. zealandica.
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Affiliation(s)
- Marie-Caroline Lefort
- Bio-Protection Research Centre, Lincoln University , Lincoln, Christchurch , New Zealand
| | - Samuel Brown
- Bio-Protection Research Centre, Lincoln University , Lincoln, Christchurch , New Zealand
| | - Stéphane Boyer
- Bio-Protection Research Centre, Lincoln University , Lincoln, Christchurch , New Zealand ; Department of Ecology, Faculty of Agricultural and Life Sciences, Lincoln University , Lincoln , New Zealand
| | - Susan Worner
- Bio-Protection Research Centre, Lincoln University , Lincoln, Christchurch , New Zealand
| | - Karen Armstrong
- Bio-Protection Research Centre, Lincoln University , Lincoln, Christchurch , New Zealand
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25
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Mizrahi T, Goldenberg S, Heller J, Arad Z. Natural variation in resistance to desiccation and heat shock protein expression in the land snail Theba pisana along a climatic gradient. Physiol Biochem Zool 2014; 88:66-80. [PMID: 25590594 DOI: 10.1086/679485] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Land snails frequently encounter desiccating conditions, and their survival depends on a suite of morphological, physiological, and molecular adaptations to the specific microhabitat. Strategies of survival can be determined by integrating information from various levels of biological organization. In this study, we used a combination of physiological parameters related to water economy and molecular factors (stress protein expression) to investigate the strategies of survival adopted by seven populations of the Mediterranean-type land snail Theba pisana from different habitats. We analyzed water compartmentalization during aestivation and used experimental desiccation to compare desiccation resistance. We also measured the endogenous levels of heat shock proteins (HSPs) Hsp72, Hsp74, and Hsp90 under nonstress conditions and analyzed the HSP response to desiccation in two populations that differed mostly in their resistance to desiccation. We revealed significant intraspecific differences in resistance to desiccation that seem to be determined by the speed of recruitment of the water-preserving mechanisms. The ability to cope with desiccating conditions was correlated with habitat temperature but not with the rainfall gradient, implying that in the coastal region, temperature is likely to have a major impact on desiccation resistance rather than precipitation. Also, higher desiccation resistance was correlated with higher constitutive levels of Hsp74 in the foot tissue. HSPs were upregulated during desiccation, but the response was delayed and was milder in the most resistant population compared to the most susceptible one. Our study suggests that T. pisana populations from warmer habitats were more resistant to desiccation and developed distinct strategies of HSP expression for survival, namely, the maintenance of high constitutive levels of Hsp70 together with a delayed and limited response to stress.
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Affiliation(s)
- Tal Mizrahi
- Department of Biology, Technion, Haifa 32000, Israel; 2Department of Evolution, Systematics, and Ecology, Hebrew University of Jerusalem, Jerusalem 91904, Israel
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26
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Wheat CW, Hill J. Pgi: the ongoing saga of a candidate gene. CURRENT OPINION IN INSECT SCIENCE 2014; 4:42-47. [PMID: 28043407 DOI: 10.1016/j.cois.2014.10.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 09/05/2014] [Accepted: 10/13/2014] [Indexed: 05/21/2023]
Abstract
Numerous studies have found amino acid variation at the phosphoglucose isomerase (PGI) gene associated with organismal performance and fitness. Here we focus upon recent advances in the study of this gene, highlighting novel species being studied, new tools being used, and emerging insights into the evolutionary dynamics acting on this gene. Our synthesis highlights questions that are coming into focus, as well as the need for attention in specific areas, such as manipulative experiments to establish mechanistic insights and a causative role of allelic variation.
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Affiliation(s)
- Christopher W Wheat
- Department of Zoology, Stockholm University, Svante Arrheniusväg 18 B, 10691 Stockholm, Sweden
| | - Jason Hill
- Department of Zoology, Stockholm University, Svante Arrheniusväg 18 B, 10691 Stockholm, Sweden
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27
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Hidalgo-Galiana A, Monge M, Biron DG, Canals F, Ribera I, Cieslak A. Reproducibility and consistency of proteomic experiments on natural populations of a non-model aquatic insect. PLoS One 2014; 9:e104734. [PMID: 25133588 PMCID: PMC4136769 DOI: 10.1371/journal.pone.0104734] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Accepted: 07/15/2014] [Indexed: 01/13/2023] Open
Abstract
Population proteomics has a great potential to address evolutionary and ecological questions, but its use in wild populations of non-model organisms is hampered by uncontrolled sources of variation. Here we compare the response to temperature extremes of two geographically distant populations of a diving beetle species (Agabus ramblae) using 2-D DIGE. After one week of acclimation in the laboratory under standard conditions, a third of the specimens of each population were placed at either 4 or 27°C for 12 h, with another third left as a control. We then compared the protein expression level of three replicated samples of 2-3 specimens for each treatment. Within each population, variation between replicated samples of the same treatment was always lower than variation between treatments, except for some control samples that retained a wider range of expression levels. The two populations had a similar response, without significant differences in the number of protein spots over- or under-expressed in the pairwise comparisons between treatments. We identified exemplary proteins among those differently expressed between treatments, which proved to be proteins known to be related to thermal response or stress. Overall, our results indicate that specimens collected in the wild are suitable for proteomic analyses, as the additional sources of variation were not enough to mask the consistency and reproducibility of the response to the temperature treatments.
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Affiliation(s)
- Amparo Hidalgo-Galiana
- Animal Biodiversity and Evolution program, Institute of Evolutionary Biology (CSIC-Universitat Pompeu Fabra), Barcelona, Spain
| | - Marta Monge
- Vall d'Hebron Institute of Oncology (VHIO) Edifici Collserola, Barcelona, Spain
| | - David G. Biron
- Laboratoire “Microorganismes: Génome et Environnement”, UMR CNRS 6023, Equipe Interactions hôtes-parasites, Université Blaise Pascal, Aubière, France
| | - Francesc Canals
- Vall d'Hebron Institute of Oncology (VHIO) Edifici Collserola, Barcelona, Spain
| | - Ignacio Ribera
- Animal Biodiversity and Evolution program, Institute of Evolutionary Biology (CSIC-Universitat Pompeu Fabra), Barcelona, Spain
| | - Alexandra Cieslak
- Animal Biodiversity and Evolution program, Institute of Evolutionary Biology (CSIC-Universitat Pompeu Fabra), Barcelona, Spain
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28
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Physiological responses of Corythucha ciliata adults to high temperatures under laboratory and field conditions. J Therm Biol 2014; 45:15-21. [PMID: 25436946 DOI: 10.1016/j.jtherbio.2014.07.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 06/30/2014] [Accepted: 07/04/2014] [Indexed: 11/21/2022]
Abstract
Under high temperature conditions, insects can tolerate to survive through various physiological mechanisms, which have been well documented in laboratory studies. However, it is still unclear as to whether these laboratory data can scale up to those in the field. Here we studied dynamics of heat-induced metabolites in Corythucha ciliata adults under both laboratory and field conditions to examine their significance in thermal tolerance of the species. We compared the effects of controlled thermal treatments (2h at 33-43 °C at 2 °C intervals in the laboratory) and naturally increasing thermal conditions (10:00-14:00 at 2-h intervals (33.5-37.2 °C) on a hot summer day in a field in Shanghai, China) on water content and levels of water-soluble protein, triglycerides, mannitol, and sorbitol in the adult bodies. The results showed that water content significantly decreased and all other metabolic parameters significantly increased in response to temperature stresses with similar patterns in both the laboratory and field, although the respective threshold temperatures were different under the two conditions. The close linkage observed in the two conditions suggests that a short period of heat stress induces water loss and accumulation of thermal metabolites in C. ciliata adults. This heat-resistance provides a defense mechanism counteracting thermal damage in C. ciliata.
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Rauhamäki V, Wolfram J, Jokitalo E, Hanski I, Dahlhoff EP. Differences in the aerobic capacity of flight muscles between butterfly populations and species with dissimilar flight abilities. PLoS One 2014; 9:e78069. [PMID: 24416122 PMCID: PMC3885395 DOI: 10.1371/journal.pone.0078069] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 09/16/2013] [Indexed: 11/22/2022] Open
Abstract
Habitat loss and climate change are rapidly converting natural habitats and thereby increasing the significance of dispersal capacity for vulnerable species. Flight is necessary for dispersal in many insects, and differences in dispersal capacity may reflect dissimilarities in flight muscle aerobic capacity. In a large metapopulation of the Glanville fritillary butterfly in the Åland Islands in Finland, adults disperse frequently between small local populations. Individuals found in newly established populations have higher flight metabolic rates and field-measured dispersal distances than butterflies in old populations. To assess possible differences in flight muscle aerobic capacity among Glanville fritillary populations, enzyme activities and tissue concentrations of the mitochondrial protein Cytochrome-c Oxidase (CytOx) were measured and compared with four other species of Nymphalid butterflies. Flight muscle structure and mitochondrial density were also examined in the Glanville fritillary and a long-distance migrant, the red admiral. Glanville fritillaries from new populations had significantly higher aerobic capacities than individuals from old populations. Comparing the different species, strong-flying butterfly species had higher flight muscle CytOx content and enzymatic activity than short-distance fliers, and mitochondria were larger and more numerous in the flight muscle of the red admiral than the Glanville fritillary. These results suggest that superior dispersal capacity of butterflies in new populations of the Glanville fritillary is due in part to greater aerobic capacity, though this species has a low aerobic capacity in general when compared with known strong fliers. Low aerobic capacity may limit dispersal ability of the Glanville fritillary.
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Affiliation(s)
- Virve Rauhamäki
- Helsinki Bioenergetics Group, Structural Biology and Biophysics Program, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Joy Wolfram
- Metapopulation Research Group, Department of Biosciences, University of Helsinki, Helsinki, Finland
| | - Eija Jokitalo
- Electron Microscopy Unit, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Ilkka Hanski
- Metapopulation Research Group, Department of Biosciences, University of Helsinki, Helsinki, Finland
| | - Elizabeth P. Dahlhoff
- Metapopulation Research Group, Department of Biosciences, University of Helsinki, Helsinki, Finland
- Department of Biology, Santa Clara University, Santa Clara, California, United States of America
- * E-mail:
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Dick CA, Rank NE, McCarthy M, McWeeney S, Hollis D, Dahlhoff EP. Effects of temperature variation on male behavior and mating success in a montane beetle. Physiol Biochem Zool 2013; 86:432-40. [PMID: 23799837 DOI: 10.1086/671462] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Locomotion and mating ability are crucial for male reproductive success yet are energetically costly and susceptible to physiological stress. In the Sierra willow beetle Chrysomela aeneicollis, male mating success depends on locating and mating with as many females as possible. Variation at the glycolytic enzyme locus phosphoglucose isomerase (Pgi) is concordant with a latitudinal temperature gradient in these populations, with Pgi-1 frequent in the cooler north, Pgi-4 in the warmer south, and alleles 1 and 4 in relatively equal frequency in areas intermediate in geography and climate. Beetles experience elevated air temperatures during a mating season that causes differential physiological stress among Pgi genotypes, and running speeds of individuals homozygous for Pgi-4 are more tolerant of repeated thermal stress than individuals possessing Pgi-1. Here the importance of running behavior for male mating activity was examined, and differential effects of thermal stress among Pgi genotypes on male mating activity were measured. In nature, males run more than females, and nearly half of males mate or fight for a mate after running. In the laboratory, mating activity was positively correlated with running speed, and repeated mating did not reduce running speed or subsequent mating activity. Males homozygous for Pgi-4 mated longer and more frequently after heat treatment than 1-1 and 1-4 males. All heat-treated males had lower mating frequencies and higher heat shock protein expression than control males; however, mating frequency of recovering 4-4 males increased throughout mating trials, while treated 1-1 and 1-4 males remained low. These results suggest that effects of stress on mating activity differ between Pgi genotypes, implying a critical role for energy metabolism in organisms' response to stressful temperatures.
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Affiliation(s)
- Cynthia A Dick
- Department of Biology, Santa Clara University, Santa Clara, California 95053, USA
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Chahal J, Kataria SK, Parkash R. Invasion and adaptation of a warm-adapted species to montane localities: effect of acclimation potential. J Exp Biol 2013; 216:1578-86. [PMID: 23348937 DOI: 10.1242/jeb.080200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Drosophila ananassae has successfully invaded the cold and dry montane localities of the Western Himalayas in recent years. The ability of this desiccation- and cold-sensitive tropical species to evolve in response to seasonal changes in montane localities is largely unknown. Here, we investigated how this sensitive species adapt to seasonally varying environmental conditions that are lethal to its survival. We observed change in the frequency of dark and light morphs of D. ananassae in five mid-altitude localities during the last decade (2000-2010). We document invasion of D. ananassae to montane localities and increase in frequency of the dark morph. The stress tolerance of morphs (dark and light) remained unaffected of developmental acclimation. However, adult acclimation has shown significant effects on tolerance to various environmental stresses in morphs and effect of this acclimation persist for long durations. Desiccation and cold stress tolerance was increased after adult acclimation for respective stress in the dark morph; while tolerance of the light morph was not affected. Further, heat tolerance of the light morph was increased after adult heat acclimation with no influence on heat tolerance of the dark morph. Our results suggest a possible role of adult acclimation in successful invasion and adaptation of D. ananassae to montane localities. Future experiments should be carried out to determine whether the survival in adverse conditions of low versus high temperature and humidity during seasonal changes is assisted by different acclimation abilities of the two morphs of D. ananassae.
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Affiliation(s)
- Jyoti Chahal
- Drosophila Research Lab, Department of Genetics, Maharshi Dayanand University, Rohtak, India.
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Jesus TF, Inácio A, Coelho MM. Different levels of hsp70 and hsc70 mRNA expression in Iberian fish exposed to distinct river conditions. Genet Mol Biol 2013; 36:61-9. [PMID: 23569409 PMCID: PMC3615526 DOI: 10.1590/s1415-47572013000100009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Accepted: 12/14/2012] [Indexed: 01/05/2023] Open
Abstract
Comprehension of the mechanisms by which ectotherms, such as fish, respond to thermal stress is paramount for understanding the threats that environmental changes may pose to wild populations. Heat shock proteins are molecular chaperones with an important role in several stress conditions such as high temperatures. In the Iberian Peninsula, particularly in Portugal, freshwater fish of the genus Squalius are subject to daily and seasonal temperature variations. To examine the extent to which different thermal regimes influence the expression patterns of hsp70 and hsc70 transcripts we exposed two species of Squalius (S. torgalensis and S. carolitertii) to different temperatures (20, 25, 30 and 35 °C). At 35 °C, there was a significant increase in the expression of hsp70 and hsc70 in the southern species, S. torgalensis, while the northern species, S. carolitertii, showed no increase in the expression of these genes; however, some individuals of the latter species died when exposed to 35 °C. These results suggest that S. torgalensis may cope better with harsher temperatures that are characteristic of this species natural environment; S. carolitertii, on the other hand, may be unable to deal with the extreme temperatures faced by the southern species.
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Affiliation(s)
- Tiago F Jesus
- Centro de Biologia Ambiental, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisbon, Portugal
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Luo J, Cheng XY, Yan X, Tao WQ, Holland JD, Xu RM. Characterization and polymorphism analysis of phosphoglucose isomerase gene in the fall webworm (Hyphantria cunea). BULLETIN OF ENTOMOLOGICAL RESEARCH 2012; 102:477-488. [PMID: 22314051 DOI: 10.1017/s000748531100085x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Phosphoglucose isomerase (PGI) plays an important role in energy metabolism, and it is documented that PGI exhibits an extensive polymorphism which can affect insects' fitness and adaptation. In this paper, we studied the structural characteristics and polymorphism of pgi gene in the fall webworm (Hyphantria cunea), an important invasive pest in some European and Asian countries. A 2110-bp pgi full-length cDNA encoding a polypeptide of 556 amino acids was obtained from H. cunea. The pgi full-length in the H. cunea genomic DNA was 14,332 bp with 12 exons and 11 introns, similar to the structures of pgi in other Lepidoptera species. We compared the structures of pgi in different insect species. Moreover, thirteen pgi genotypes comprised of five alleles were identified in the Chinese population. Genotypes pgi-cd, pgi-cc and pgi-ce were the most prevalent with over 70% of individuals allocated to them. Four out of five alleles were sequenced the cDNA full-length. Thirty stably variable sites were found among them with five non-synonymous mutation sites. The frequencies of alleles and genotypes were variable in different Chinese geographic subpopulations. Moreover, comparison of pgi mRNA expression levels in each stage of the moth's lifecycle showed that a high expression level was in the 6th instar larval stage, followed by that in the egg and adult stages. The results will provide a basis for further study of the role of different alleles and genotypes of PGI on fitness and adaptation of the moth H. cunea.
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Affiliation(s)
- J Luo
- College of Life Sciences, Beijing Normal University, 19 Xinjiekou Wai Dajie, Beijing, 100875, China
| | - X-Y Cheng
- College of Life Sciences, Beijing Normal University, 19 Xinjiekou Wai Dajie, Beijing, 100875, China
| | - X Yan
- College of Life Sciences, Beijing Normal University, 19 Xinjiekou Wai Dajie, Beijing, 100875, China
| | - W-Q Tao
- Beijing Municipal Bureau of Landscape and Forestry, 8 Yumin Middle Road, Beijing, 100029, China
| | - J D Holland
- Department of Entomology, Purdue University, West Lafayette, IN 47907, USA
| | - R-M Xu
- College of Life Sciences, Beijing Normal University, 19 Xinjiekou Wai Dajie, Beijing, 100875, China
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Kühl HS, N'Guessan A, Riedel J, Metzger S, Deschner T. The effect of climate fluctuation on chimpanzee birth sex ratio. PLoS One 2012; 7:e35610. [PMID: 22563387 PMCID: PMC3338517 DOI: 10.1371/journal.pone.0035610] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Accepted: 03/19/2012] [Indexed: 11/18/2022] Open
Abstract
Climate and weather conditions, such as the North Atlantic Oscillation, precipitation and temperature influence the birth sex ratio (BSR) of various higher latitude species, including deer, elephant seals or northern human populations. Although, tropical regions show only little variation in temperature, climate and weather conditions can fluctuate with consequences for phenology and food resource availability. Here, we evaluate, whether the BSR of chimpanzees, inhabiting African tropical forests, is affected by climate fluctuations as well. Additionally, we evaluate, if variation in consumption of a key food resource with high nutritional value, Coula edulis nuts, is linked to both climate fluctuations and variation in BSR. We use long-term data from two study groups located in Taï National Park, Côte d'Ivoire to assess the influence of local weather conditions and the global climate driver El Niño Southern Oscillation (ENSO) on offspring sex. Côte d'Ivoire has experienced considerable climate variation over the last decades, with increasing temperature and declining precipitation. For both groups we find very similar time windows around the month of conception, in which offspring sex is well predicted by ENSO, with more males following low ENSO values, corresponding to periods of high rainfall. Furthermore, we find that the time spent cracking and feeding on Coula nuts is strongly influenced by climate conditions. Although, some of our analysis suggest that a higher proportion of males is born after periods with higher nut consumption frequency, we cannot conclude decisively at this point that nut consumption may influence shifts in BSR. All results combined suggest that also chimpanzees may experience climate related shifts in offspring sex ratios as response to climate fluctuation.
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Affiliation(s)
- Hjalmar S Kühl
- Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
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Driessen G, Huyer F, Ellers J. The costs of phenotypic adaptation to repeatedly fluctuating temperatures in a soil arthropod. J Therm Biol 2011. [DOI: 10.1016/j.jtherbio.2011.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Fangue NA, Osborne EJ, Todgham AE, Schulte PM. The Onset Temperature of the Heat-Shock Response and Whole-Organism Thermal Tolerance Are Tightly Correlated in both Laboratory-Acclimated and Field-Acclimatized Tidepool Sculpins (Oligocottus maculosus). Physiol Biochem Zool 2011; 84:341-52. [DOI: 10.1086/660113] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Folguera G, Bastías DA, Caers J, Rojas JM, Piulachs MD, Bellés X, Bozinovic F. An experimental test of the role of environmental temperature variability on ectotherm molecular, physiological and life-history traits: Implications for global warming. Comp Biochem Physiol A Mol Integr Physiol 2011; 159:242-6. [DOI: 10.1016/j.cbpa.2011.03.002] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2011] [Revised: 03/08/2011] [Accepted: 03/08/2011] [Indexed: 11/28/2022]
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Opposing effects of heat stress on male versus female reproductive success in Bicyclus anynana butterflies. J Therm Biol 2011. [DOI: 10.1016/j.jtherbio.2011.04.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Xu Q, Zou Q, Zheng H, Zhang F, Tang B, Wang S. Three heat shock proteins from Spodoptera exigua: Gene cloning, characterization and comparative stress response during heat and cold shocks. Comp Biochem Physiol B Biochem Mol Biol 2011; 159:92-102. [DOI: 10.1016/j.cbpb.2011.02.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Revised: 02/22/2011] [Accepted: 02/24/2011] [Indexed: 01/24/2023]
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Fischer K, Dierks A, Franke K, Geister TL, Liszka M, Winter S, Pflicke C. Environmental effects on temperature stress resistance in the tropical butterfly Bicyclus anynana. PLoS One 2010; 5:e15284. [PMID: 21187968 PMCID: PMC3004918 DOI: 10.1371/journal.pone.0015284] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Accepted: 11/04/2010] [Indexed: 11/18/2022] Open
Abstract
Background The ability to withstand thermal stress is considered to be of crucial importance for individual fitness and species' survival. Thus, organisms need to employ effective mechanisms to ensure survival under stressful thermal conditions, among which phenotypic plasticity is considered a particularly quick and effective one. Methodology/Principal Findings In a series of experiments we here investigate phenotypic adjustment in temperature stress resistance following environmental manipulations in the butterfly Bicyclus anynana. Cooler compared to warmer acclimation temperatures generally increased cold but decreased heat stress resistance and vice versa. In contrast, short-time hardening responses revealed more complex patterns, with, e.g., cold stress resistance being highest at intermediate hardening temperatures. Adult food stress had a negative effect on heat but not on cold stress resistance. Additionally, larval feeding treatment showed interactive effects with adult feeding for heat but not for cold stress resistance, indicating that nitrogenous larval resources may set an upper limit to performance under heat stress. In contrast to expectations, cold resistance slightly increased during the first eight days of adult life. Light cycle had marginal effects on temperature stress resistance only, with cold resistance tending to be higher during daytime and thus active periods. Conclusions/Significance Our results highlight that temperature-induced plasticity provides an effective tool to quickly and strongly modulate temperature stress resistance, and that such responses are readily reversible. However, resistance traits are not only affected by ambient temperature, but also by, e.g., food availability and age, making their measurement challenging. The latter effects are largely underexplored and deserve more future attention. Owing to their magnitude, plastic responses in thermal tolerance should be incorporated into models trying to forecast effects of global change on extant biodiversity.
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Affiliation(s)
- Klaus Fischer
- Zoological Institute and Museum, University of Greifswald, Greifswald, Germany.
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Niitepõld K. Genotype by temperature interactions in the metabolic rate of the Glanville fritillary butterfly. ACTA ACUST UNITED AC 2010; 213:1042-8. [PMID: 20228340 DOI: 10.1242/jeb.034132] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Metabolic rate is a highly plastic trait. Here I examine factors that influence the metabolic rate of the Glanville fritillary butterfly (Melitaea cinxia) in pupae and resting and flying adults. Body mass and temperature had consistent positive effects on metabolic rate in pupae and resting adults but not in flying adults. There was also a consistent nonlinear effect of the time of the day, which was strongest in pupae and weakest in flying adults. Flight metabolic rate was strongly affected by an interaction between the phosphoglucose isomerase (Pgi) genotype and temperature. Over a broad range of measurement temperatures, heterozygous individuals at a single nucleotide polymorphism (SNP) in Pgi had higher peak metabolic rate in flight, but at high temperatures homozygous individuals performed better. The two genotypes did not differ in resting metabolic rate, suggesting that the heterozygotes do not pay an additional energetic cost for their higher flight capacity. Mass-independent resting and flight metabolic rates were at best weakly correlated at the individual level, and therefore, unlike in many vertebrates, resting metabolic rate does not serve as a useful surrogate of the metabolic capacity of this butterfly.
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Affiliation(s)
- Kristjan Niitepõld
- Department of Biological and Environmental Sciences, University of Helsinki, FI-00014, Helsinki, Finland.
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Phosphoglucose isomerase (Pgi) performance and fitness effects among Arthropods and its potential role as an adaptive marker in conservation genetics. CONSERV GENET 2010. [DOI: 10.1007/s10592-009-0042-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Food stress sensitivity and flight performance across phosphoglucose isomerase enzyme genotypes in the sooty copper butterfly. POPUL ECOL 2010. [DOI: 10.1007/s10144-009-0191-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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KARL I, SØRENSEN JG, LOESCHCKE V, FISCHER K. HSP70 expression in the Copper butterflyLycaena tityrusacross altitudes and temperatures. J Evol Biol 2009; 22:172-8. [DOI: 10.1111/j.1420-9101.2008.01630.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Dahlhoff E, Fearnley S, Bruce D, Gibbs A, Stoneking R, McMillan D, Deiner K, Smiley J, Rank N. Effects of Temperature on Physiology and Reproductive Success of a Montane Leaf Beetle: Implications for Persistence of Native Populations Enduring Climate Change. Physiol Biochem Zool 2008; 81:718-32. [DOI: 10.1086/590165] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Karl I, Schmitt T, Fischer K. Phosphoglucose isomerase genotype affects life-history traits and cold stress resistance in a Copper butterfly. Funct Ecol 2008. [DOI: 10.1111/j.1365-2435.2008.01438.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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