1
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Tellier A, Hodgins K, Stephan W, Stukenbrock E. Rapid evolutionary adaptation: Potential and constraints. Mol Ecol 2024; 33:e17350. [PMID: 38591817 DOI: 10.1111/mec.17350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 03/18/2024] [Accepted: 03/28/2024] [Indexed: 04/10/2024]
Affiliation(s)
- Aurélien Tellier
- Population Genetics, Department of Life Science Systems, Technical University of Munich, Freising, Germany
| | - Kathryn Hodgins
- School of Biological Sciences, Monash University, Clayton, Australia
| | - Wolfgang Stephan
- Natural History Museum Berlin and University of Munich, Munich, Germany
| | - Eva Stukenbrock
- Botanical Institute, Christian-Albrechts University, Max Planck Institute for Evolutionary Biology, Plön, Germany
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2
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Draghi JA, McGlothlin JW, Kindsvater HK. Demographic feedbacks during evolutionary rescue can slow or speed adaptive evolution. Proc Biol Sci 2024; 291:20231553. [PMID: 38351805 PMCID: PMC10865011 DOI: 10.1098/rspb.2023.1553] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 01/16/2024] [Indexed: 02/16/2024] Open
Abstract
Populations declining toward extinction can persist via genetic adaptation in a process called evolutionary rescue. Predicting evolutionary rescue has applications ranging from conservation biology to medicine, but requires understanding and integrating the multiple effects of a stressful environmental change on population processes. Here we derive a simple expression for how generation time, a key determinant of the rate of evolution, varies with population size during evolutionary rescue. Change in generation time is quantitatively predicted by comparing how intraspecific competition and the source of maladaptation each affect the rates of births and deaths in the population. Depending on the difference between two parameters quantifying these effects, the model predicts that populations may experience substantial changes in their rate of adaptation in both positive and negative directions, or adapt consistently despite severe stress. These predictions were then tested by comparison to the results of individual-based simulations of evolutionary rescue, which validated that the tolerable rate of environmental change varied considerably as described by analytical results. We discuss how these results inform efforts to understand wildlife disease and adaptation to climate change, evolution in managed populations and treatment resistance in pathogens.
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Affiliation(s)
- Jeremy A. Draghi
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24060, USA
| | - Joel W. McGlothlin
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24060, USA
| | - Holly K. Kindsvater
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA 24060, USA
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3
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Baur J, Zwoinska M, Koppik M, Snook RR, Berger D. Heat stress reveals a fertility debt owing to postcopulatory sexual selection. Evol Lett 2024; 8:101-113. [PMID: 38370539 PMCID: PMC10872150 DOI: 10.1093/evlett/qrad007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 01/21/2023] [Accepted: 02/21/2023] [Indexed: 02/20/2024] Open
Abstract
Climates are changing rapidly, demanding equally rapid adaptation of natural populations. Whether sexual selection can aid such adaptation is under debate; while sexual selection should promote adaptation when individuals with high mating success are also best adapted to their local surroundings, the expression of sexually selected traits can incur costs. Here we asked what the demographic consequences of such costs may be once climates change to become harsher and the strength of natural selection increases. We first adopted a classic life history theory framework, incorporating a trade-off between reproduction and maintenance, and applied it to the male germline to generate formalized predictions for how an evolutionary history of strong postcopulatory sexual selection (sperm competition) may affect male fertility under acute adult heat stress. We then tested these predictions by assessing the thermal sensitivity of fertility (TSF) in replicated lineages of seed beetles maintained for 68 generations under three alternative mating regimes manipulating the opportunity for sexual and natural selection. In line with the theoretical predictions, we find that males evolving under strong sexual selection suffer from increased TSF. Interestingly, females from the regime under strong sexual selection, who experienced relaxed selection on their own reproductive effort, had high fertility in benign settings but suffered increased TSF, like their brothers. This implies that female fertility and TSF evolved through genetic correlation with reproductive traits sexually selected in males. Paternal but not maternal heat stress reduced offspring fertility with no evidence for adaptive transgenerational plasticity among heat-exposed offspring, indicating that the observed effects may compound over generations. Our results suggest that trade-offs between fertility and traits increasing success in postcopulatory sexual selection can be revealed in harsh environments. This can put polyandrous species under immediate risk during extreme heat waves expected under future climate change.
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Affiliation(s)
- Julian Baur
- Department of Ecology and Genetics, Division of Animal Ecology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
| | - Martyna Zwoinska
- Department of Ecology and Genetics, Division of Animal Ecology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
- Department of Zoology, Stockholm University, Stockholm, Sweden
| | - Mareike Koppik
- Department of Ecology and Genetics, Division of Animal Ecology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
- Department of Zoology, Animal Ecology, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Rhonda R Snook
- Department of Zoology, Stockholm University, Stockholm, Sweden
| | - David Berger
- Department of Ecology and Genetics, Division of Animal Ecology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
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4
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Yévenes M, Gallardo-Escárate C, Gajardo G. Epigenetic variation mediated by lncRNAs accounts for adaptive genomic differentiation of the endemic blue mussel Mytiluschilensis. Heliyon 2024; 10:e23695. [PMID: 38205306 PMCID: PMC10776947 DOI: 10.1016/j.heliyon.2023.e23695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/09/2023] [Indexed: 01/12/2024] Open
Abstract
Epigenetic variation affects gene expression without altering the underlying DNA sequence of genes controlling ecologically relevant phenotypes through different mechanisms, one of which is long non-coding RNAs (lncRNAs). This study identified and evaluated the gene expression of lncRNAs in the gill and mantle tissues of Mytilus chilensis individuals from two ecologically different sites: Cochamó (41°S) and Yaldad (43°S), southern Chile, both impacted by climatic-related conditions and by mussel farming given their use as seedbeds. Sequences identified as lncRNAs exhibited tissue-specific differences, mapping to 3.54 % of the gill transcriptome and 1.96 % of the mantle transcriptome, representing an average of 2.76 % of the whole transcriptome. Using a high fold change value (≥|100|), we identified 43 and 47 differentially expressed lncRNAs (DE-lncRNAs) in the gill and mantle tissue of individuals sampled from Cochamó and 21 and 17 in the gill and mantle tissue of individuals sampled from Yaldad. Location-specific DE-lncRNAs were also detected in Cochamó (65) and Yaldad (94) samples. Via analysis of the differential expression of neighboring protein-coding genes, we identified enriched GO terms related to metabolic, genetic, and environmental information processing and immune system functions, reflecting how the impact of local ecological conditions may influence the M. chilensis (epi)genome expression. These DE-lncRNAs represent complementary biomarkers to DNA sequence variation for maintaining adaptive differences and phenotypic plasticity to cope with natural and human-driven perturbations.
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Affiliation(s)
- Marco Yévenes
- Laboratorio de Genética, Acuicultura y Biodiversidad, Departamento de Ciencias Biológicas y Biodiversidad, Universidad de Los Lagos, Osorno, Chile
| | - Cristian Gallardo-Escárate
- Centro Interdisciplinario para la Investigación en Acuicultura, Universidad de Concepción, Concepción, Chile
| | - Gonzalo Gajardo
- Laboratorio de Genética, Acuicultura y Biodiversidad, Departamento de Ciencias Biológicas y Biodiversidad, Universidad de Los Lagos, Osorno, Chile
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5
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Berger D, Liljestrand-Rönn J. Environmental complexity mitigates the demographic impact of sexual selection. Ecol Lett 2024; 27:e14355. [PMID: 38225825 DOI: 10.1111/ele.14355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/30/2023] [Accepted: 12/11/2023] [Indexed: 01/17/2024]
Abstract
Sexual selection and the evolution of costly mating strategies can negatively impact population viability and adaptive potential. While laboratory studies have documented outcomes stemming from these processes, recent observations suggest that the demographic impact of sexual selection is contingent on the environment and therefore may have been overestimated in simple laboratory settings. Here we find support for this claim. We exposed copies of beetle populations, previously evolved with or without sexual selection, to a 10-generation heatwave while maintaining half of them in a simple environment and the other half in a complex environment. Populations with an evolutionary history of sexual selection maintained larger sizes and more stable growth rates in complex (relative to simple) environments, an effect not seen in populations evolved without sexual selection. These results have implications for evolutionary forecasting and suggest that the negative demographic impact of sexually selected mating strategies might be low in natural populations.
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Affiliation(s)
- David Berger
- Department of Ecology and Genetics, Uppsala University, Uppsala, Sweden
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6
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Thorogood R, Mustonen V, Aleixo A, Aphalo PJ, Asiegbu FO, Cabeza M, Cairns J, Candolin U, Cardoso P, Eronen JT, Hällfors M, Hovatta I, Juslén A, Kovalchuk A, Kulmuni J, Kuula L, Mäkipää R, Ovaskainen O, Pesonen AK, Primmer CR, Saastamoinen M, Schulman AH, Schulman L, Strona G, Vanhatalo J. Understanding and applying biological resilience, from genes to ecosystems. NPJ BIODIVERSITY 2023; 2:16. [PMID: 39242840 PMCID: PMC11332022 DOI: 10.1038/s44185-023-00022-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 08/07/2023] [Indexed: 09/09/2024]
Abstract
The natural world is under unprecedented and accelerating pressure. Much work on understanding resilience to local and global environmental change has, so far, focussed on ecosystems. However, understanding a system's behaviour requires knowledge of its component parts and their interactions. Here we call for increased efforts to understand 'biological resilience', or the processes that enable components across biological levels, from genes to communities, to resist or recover from perturbations. Although ecologists and evolutionary biologists have the tool-boxes to examine form and function, efforts to integrate this knowledge across biological levels and take advantage of big data (e.g. ecological and genomic) are only just beginning. We argue that combining eco-evolutionary knowledge with ecosystem-level concepts of resilience will provide the mechanistic basis necessary to improve management of human, natural and agricultural ecosystems, and outline some of the challenges in achieving an understanding of biological resilience.
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Affiliation(s)
- Rose Thorogood
- HiLIFE Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland.
- Research Programme in Organismal & Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland.
| | - Ville Mustonen
- Research Programme in Organismal & Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Department of Computer Science, Faculty of Science, University of Helsinki, Helsinki, Finland
- Helsinki Institute for Information Technology, University of Helsinki, Helsinki, Finland
- Institute of Biotechnology, HiLIFE Helsinki Institute for Life Science, University of Helsinki, Helsinki, Finland
| | - Alexandre Aleixo
- LUOMUS Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
| | - Pedro J Aphalo
- Research Programme in Organismal & Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Viikki Plant Science Centre, University of Helsinki, Helsinki, Finland
| | - Fred O Asiegbu
- Viikki Plant Science Centre, University of Helsinki, Helsinki, Finland
- Department of Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Mar Cabeza
- Research Programme in Organismal & Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- HELSUS Helsinki Institute of Sustainability Science, University of Helsinki, Helsinki, Finland
| | - Johannes Cairns
- Research Programme in Organismal & Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Helsinki Institute for Information Technology, University of Helsinki, Helsinki, Finland
| | - Ulrika Candolin
- Research Programme in Organismal & Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Pedro Cardoso
- LUOMUS Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
- CE3C - Centre for Ecology, Evolution and Environmental Changes, CHANGE-Global Change and Sustainability Institute, Faculty of Sciences, University of Lisbon, 1749-016, Lisbon, Portugal
| | - Jussi T Eronen
- HELSUS Helsinki Institute of Sustainability Science, University of Helsinki, Helsinki, Finland
- Research Programme in Ecosystems and Environment, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- BIOS Research Unit, Helsinki, Finland
| | - Maria Hällfors
- Research Programme in Organismal & Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Research Centre for Ecological Change, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Syke Finnish Environment Institute, Helsinki, Finland
| | - Iiris Hovatta
- SleepWell Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Neuroscience Center, HiLIFE Helsinki Institute for Life Science, University of Helsinki, Helsinki, Finland
| | - Aino Juslén
- LUOMUS Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
- Syke Finnish Environment Institute, Helsinki, Finland
| | - Andriy Kovalchuk
- Department of Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
- VTT Technical Research Centre of Finland Ltd, Espoo, Finland
- Onego Bio Ltd, Helsinki, Finland
| | - Jonna Kulmuni
- Research Programme in Organismal & Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - Liisa Kuula
- SleepWell Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Raisa Mäkipää
- Natural Resources Institute Finland (Luke), Helsinki, Finland
| | - Otso Ovaskainen
- Research Programme in Organismal & Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Centre for Biodiversity Dynamics, Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
| | - Anu-Katriina Pesonen
- SleepWell Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Craig R Primmer
- Research Programme in Organismal & Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Institute of Biotechnology, HiLIFE Helsinki Institute for Life Science, University of Helsinki, Helsinki, Finland
| | - Marjo Saastamoinen
- HiLIFE Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
- Research Programme in Organismal & Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Research Centre for Ecological Change, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Alan H Schulman
- Institute of Biotechnology, HiLIFE Helsinki Institute for Life Science, University of Helsinki, Helsinki, Finland
- Viikki Plant Science Centre, University of Helsinki, Helsinki, Finland
- Natural Resources Institute Finland (Luke), Helsinki, Finland
| | - Leif Schulman
- LUOMUS Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
- Syke Finnish Environment Institute, Helsinki, Finland
| | - Giovanni Strona
- Research Programme in Organismal & Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Research Centre for Ecological Change, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- European Commission, Joint Research Centre, Directorate D - Sustainable Resources, Ispra, Italy
| | - Jarno Vanhatalo
- Research Programme in Organismal & Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Research Centre for Ecological Change, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Department of Mathematics and Statistics, Faculty of Science, University of Helsinki, Helsinki, Finland
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7
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Kazarina A, Sarkar S, Thapa S, Heeren L, Kamke A, Ward K, Hartung E, Ran Q, Galliart M, Jumpponen A, Johnson L, Lee STM. Home-field advantage affects the local adaptive interaction between Andropogon gerardii ecotypes and root-associated bacterial communities. Microbiol Spectr 2023; 11:e0020823. [PMID: 37606438 PMCID: PMC10580881 DOI: 10.1128/spectrum.00208-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 07/05/2023] [Indexed: 08/23/2023] Open
Abstract
Due to climate change, drought frequencies and severities are predicted to increase across the United States. Plant responses and adaptation to stresses depend on plant genetic and environmental factors. Understanding the effect of those factors on plant performance is required to predict species' responses to environmental change. We used reciprocal gardens planted with distinct regional ecotypes of the perennial grass Andropogon gerardii adapted to dry, mesic, and wet environments to characterize their rhizosphere communities using 16S rRNA metabarcode sequencing. Even though the local microbial pool was the main driver of these rhizosphere communities, the significant plant ecotypic effect highlighted active microbial recruitment in the rhizosphere, driven by ecotype or plant genetic background. Our data also suggest that ecotypes planted at their homesites were more successful in recruiting rhizosphere community members that were unique to the location. The link between the plants' homesite and the specific local microbes supported the "home field advantage" hypothesis. The unique homesite microbes may represent microbial specialists that are linked to plant stress responses. Furthermore, our data support ecotypic variation in the recruitment of congeneric but distinct bacterial variants, highlighting the nuanced plant ecotype effects on rhizosphere microbiome recruitment. These results improve our understanding of the complex plant host-soil microbe interactions and should facilitate further studies focused on exploring the functional potential of recruited microbes. Our study has the potential to aid in predicting grassland ecosystem responses to climate change and impact restoration management practices to promote grassland sustainability. IMPORTANCE In this study, we used reciprocal gardens located across a steep precipitation gradient to characterize rhizosphere communities of distinct dry, mesic, and wet regional ecotypes of the perennial grass Andropogon gerardii. We used 16S rRNA amplicon sequencing and focused oligotyping analysis and showed that even though location was the main driver of the microbial communities, ecotypes could potentially recruit distinct bacterial populations. We showed that different A. gerardii ecotypes were more successful in overall community recruitment and recruitment of microbes unique to the "home" environment, when growing at their "home site." We found evidence for "home-field advantage" interactions between the host and host-root-associated bacterial communities, and the capability of ecotypes to recruit specialized microbes that were potentially linked to plant stress responses. Our study aids in a better understanding of the factors that affect plant adaptation, improve management strategies, and predict grassland function under the changing climate.
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Affiliation(s)
- Anna Kazarina
- Division of Biology, Kansas State University, Manhattan, Kansas, USA
| | - Soumyadev Sarkar
- Division of Biology, Kansas State University, Manhattan, Kansas, USA
| | - Shiva Thapa
- Department of Biology, University of North Carolina, Greensboro, North Carolina, USA
| | - Leah Heeren
- Division of Biology, Kansas State University, Manhattan, Kansas, USA
| | - Abgail Kamke
- Division of Biology, Kansas State University, Manhattan, Kansas, USA
| | - Kaitlyn Ward
- Division of Biology, Kansas State University, Manhattan, Kansas, USA
| | - Eli Hartung
- Division of Biology, Kansas State University, Manhattan, Kansas, USA
| | - Qinghong Ran
- Division of Biology, Kansas State University, Manhattan, Kansas, USA
| | - Matthew Galliart
- Department of Biological Sciences, Fort Hays State University, Hays, Kansas, USA
| | - Ari Jumpponen
- Division of Biology, Kansas State University, Manhattan, Kansas, USA
| | - Loretta Johnson
- Division of Biology, Kansas State University, Manhattan, Kansas, USA
| | - Sonny T. M. Lee
- Division of Biology, Kansas State University, Manhattan, Kansas, USA
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8
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Rybnikov SR, Frenkel Z, Hübner S, Weissman DB, Korol AB. Modeling the evolution of recombination plasticity: A prospective review. Bioessays 2023; 45:e2200237. [PMID: 37246937 DOI: 10.1002/bies.202200237] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 05/17/2023] [Accepted: 05/17/2023] [Indexed: 05/30/2023]
Abstract
Meiotic recombination is one of the main sources of genetic variation, a fundamental factor in the evolutionary adaptation of sexual eukaryotes. Yet, the role of variation in recombination rate and other recombination features remains underexplored. In this review, we focus on the sensitivity of recombination rates to different extrinsic and intrinsic factors. We briefly present the empirical evidence for recombination plasticity in response to environmental perturbations and/or poor genetic background and discuss theoretical models developed to explain how such plasticity could have evolved and how it can affect important population characteristics. We highlight a gap between the evidence, which comes mostly from experiments with diploids, and theory, which typically assumes haploid selection. Finally, we formulate open questions whose solving would help to outline conditions favoring recombination plasticity. This will contribute to answering the long-standing question of why sexual recombination exists despite its costs, since plastic recombination may be evolutionary advantageous even in selection regimes rejecting any non-zero constant recombination.
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Affiliation(s)
- Sviatoslav R Rybnikov
- Institute of Evolution, University of Haifa, Haifa, Israel
- Department of Evolutionary and Environmental Biology, University of Haifa, Haifa, Israel
| | - Zeev Frenkel
- Institute of Evolution, University of Haifa, Haifa, Israel
| | - Sariel Hübner
- Galilee Research Institute (MIGAL), Tel-Hai College, Kiryat Shmona, Israel
| | | | - Abraham B Korol
- Institute of Evolution, University of Haifa, Haifa, Israel
- Department of Evolutionary and Environmental Biology, University of Haifa, Haifa, Israel
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9
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Knott JA, Liang L, Dukes JS, Swihart RK, Fei S. Phenological response to climate variation in a northern red oak plantation: Links to survival and productivity. Ecology 2023; 104:e3940. [PMID: 36457179 DOI: 10.1002/ecy.3940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 10/20/2022] [Accepted: 10/25/2022] [Indexed: 12/04/2022]
Abstract
In a changing climate, the future survival and productivity of species rely on individual populations to respond to shifting environmental conditions. Many tree species, including northern red oak (Quercus rubra), exhibit phenotypic plasticity, the ability to respond to changes in environmental conditions at within-generation time scales, through varying traits such as leaf phenology. Phenotypic plasticity of phenology may vary among populations within a species' range, and it is unclear if the range of plasticity is adequate to promote fitness. Here, we used a 58-year-old common garden to test whether northern red oak populations differed in phenological sensitivity to changes in temperature and whether differences in phenological sensitivity were associated with differences in productivity and survival (proxies of fitness). We recorded 8 years of spring leaf emergence and autumn leaf coloration and loss in 28 distinct populations from across the species' full range. Across the 28 populations, spring leaf out consistently advanced in warmer years, but fall phenology was less responsive to changes in temperature. Southern, warm-adapted populations had larger shifts in phenology in response to springtime warming but had lower long-term survival. Moreover, higher phenological sensitivity to spring warming was not strongly linked to increased productivity. Instead, fitness was more closely linked to latitudinal gradients. Although springtime phenological sensitivity to climate change is common across northern red oak populations, responses of productivity and survival, which could determine longer-term trajectories of species abundance, are more variable across the species' range.
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Affiliation(s)
- Jonathan A Knott
- Department of Forestry and Natural Resources, Purdue University, West Lafayette, Indiana, USA.,United States Department of Agriculture, Forest Service, St. Paul, Minnesota, USA
| | - Liang Liang
- Department of Geography, University of Kentucky, Lexington, Kentucky, USA
| | - Jeffrey S Dukes
- Department of Forestry and Natural Resources, Purdue University, West Lafayette, Indiana, USA.,Department of Global Ecology, Carnegie Institution for Science, Stanford, California, USA
| | - Robert K Swihart
- Department of Forestry and Natural Resources, Purdue University, West Lafayette, Indiana, USA
| | - Songlin Fei
- Department of Forestry and Natural Resources, Purdue University, West Lafayette, Indiana, USA
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10
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Venkataram S, Kuo HY, Hom EFY, Kryazhimskiy S. Mutualism-enhancing mutations dominate early adaptation in a two-species microbial community. Nat Ecol Evol 2023; 7:143-154. [PMID: 36593292 DOI: 10.1038/s41559-022-01923-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/03/2022] [Indexed: 01/03/2023]
Abstract
Species interactions drive evolution while evolution shapes these interactions. The resulting eco-evolutionary dynamics and their repeatability depend on how adaptive mutations available to community members affect fitness and ecologically relevant traits. However, the diversity of adaptive mutations is not well characterized, and we do not know how this diversity is affected by the ecological milieu. Here we use barcode lineage tracking to address this question in a community of yeast Saccharomyces cerevisiae and alga Chlamydomonas reinhardtii that have a net commensal relationship that results from a balance between competitive and mutualistic interactions. We find that yeast has access to many adaptive mutations with diverse ecological consequences, in particular those that increase and reduce the yields of both species. The presence of the alga does not change which mutations are adaptive in yeast (that is, there is no fitness trade-off for yeast between growing alone or with alga), but rather shifts selection to favour yeast mutants that increase the yields of both species and make the mutualism stronger. Thus, in the presence of the alga, adaptative mutations contending for fixation in yeast are more likely to enhance the mutualism, even though cooperativity is not directly favoured by natural selection in our system. Our results demonstrate that ecological interactions not only alter the trajectory of evolution but also dictate its repeatability; in particular, weak mutualisms can repeatably evolve to become stronger.
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Affiliation(s)
- Sandeep Venkataram
- Department of Ecology, Behavior and Evolution, University of California San Diego, La Jolla, CA, USA
| | - Huan-Yu Kuo
- Department of Ecology, Behavior and Evolution, University of California San Diego, La Jolla, CA, USA.,Department of Physics, University of California San Diego, La Jolla, CA, USA
| | - Erik F Y Hom
- Department of Biology and Center for Biodiversity and Conservation Research, University of Mississippi, University, MS, USA
| | - Sergey Kryazhimskiy
- Department of Ecology, Behavior and Evolution, University of California San Diego, La Jolla, CA, USA.
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11
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Genetic architecture of dispersal and local adaptation drives accelerating range expansions. Proc Natl Acad Sci U S A 2022; 119:e2121858119. [PMID: 35895682 PMCID: PMC9353510 DOI: 10.1073/pnas.2121858119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Contemporary evolution has the potential to significantly alter biotic responses to global change, including range expansion dynamics and biological invasions. Models predicting range dynamics often make highly simplifying assumptions about the genetic architecture underlying relevant traits. However, genetic architecture defines evolvability and higher-order evolutionary processes, which determine whether evolution will be able to keep up with environmental change or not. Therefore, we here study the impact of the genetic architecture of dispersal and local adaptation, two central traits of high relevance for range expansions, on the dynamics and predictability of invasion into an environmental gradient, such as temperature. In our theoretical model we assume that dispersal and local adaptation traits result from the products of two noninteracting gene-regulatory networks (GRNs). We compare our model to simpler quantitative genetics models and show that in the GRN model, range expansions are accelerating and less predictable. We further find that accelerating dynamics in the GRN model are primarily driven by an increase in the rate of local adaptation to novel habitats which results from greater sensitivity to mutation (decreased robustness) and increased gene expression. Our results highlight how processes at microscopic scales, here within genomes, can impact the predictions of large-scale, macroscopic phenomena, such as range expansions, by modulating the rate of evolution.
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12
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Gramlich S, Liu X, Favre A, Buerkle CA, Karrenberg S. A polygenic architecture with habitat-dependent effects underlies ecological differentiation in Silene. THE NEW PHYTOLOGIST 2022; 235:1641-1652. [PMID: 35586969 PMCID: PMC9544174 DOI: 10.1111/nph.18260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 05/04/2022] [Indexed: 05/27/2023]
Abstract
Ecological differentiation can drive speciation but it is unclear how the genetic architecture of habitat-dependent fitness contributes to lineage divergence. We investigated the genetic architecture of cumulative flowering, a fitness component, in second-generation hybrids between Silene dioica and Silene latifolia transplanted into the natural habitat of each species. We used reduced-representation sequencing and Bayesian sparse linear mixed models (BSLMMs) to analyze the genetic control of cumulative flowering in each habitat. Our results point to a polygenic architecture of cumulative flowering. Allelic effects were mostly beneficial or deleterious in one habitat and neutral in the other. Positive-effect alleles often were derived from the native species, whereas negative-effect alleles, at other loci, tended to originate from the non-native species. We conclude that ecological differentiation is governed and maintained by many loci with small, habitat-dependent effects consistent with conditional neutrality. This pattern may result from differences in selection targets in the two habitats and from environmentally dependent deleterious load. Our results further suggest that selection for native alleles and against non-native alleles acts as a barrier to gene flow between species.
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Affiliation(s)
- Susanne Gramlich
- Department of Ecology and Genetics, Plant Ecology and EvolutionUppsala UniversityNorbyvägen 18D75267UppsalaSweden
| | - Xiaodong Liu
- Department of Ecology and Genetics, Plant Ecology and EvolutionUppsala UniversityNorbyvägen 18D75267UppsalaSweden
- Department of Biology, The Bioinformatics CenterUniversity of CopenhagenOle Maaløes Vej 52200CopenhagenDenmark
| | - Adrien Favre
- Senckenberg Research Institute and Natural History MuseumSenckenberganlage 2560325Frankfurt/MainGermany
| | - C. Alex Buerkle
- Department of BotanyUniversity of Wyoming1000 E. University AveLaramieWY82071USA
| | - Sophie Karrenberg
- Department of Ecology and Genetics, Plant Ecology and EvolutionUppsala UniversityNorbyvägen 18D75267UppsalaSweden
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13
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Riederer JM, Tiso S, van Eldijk TJ, Weissing FJ. Capturing the facets of evolvability in a mechanistic framework. Trends Ecol Evol 2022; 37:430-439. [DOI: 10.1016/j.tree.2022.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 01/13/2022] [Accepted: 01/18/2022] [Indexed: 10/19/2022]
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14
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O’Fallon S, Lowell ESH, Daniels D, Pinter-Wollman N. OUP accepted manuscript. Behav Ecol 2022; 33:644-653. [PMID: 35600995 PMCID: PMC9113307 DOI: 10.1093/beheco/arac026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 12/16/2021] [Accepted: 03/01/2022] [Indexed: 11/14/2022] Open
Abstract
Behavior is shaped by genes, environment, and evolutionary history in different ways. Nest architecture is an extended phenotype that results from the interaction between the behavior of animals and their environment. Nests built by ants are extended phenotypes that differ in structure among species and among colonies within a species, but the source of these differences remains an open question. To investigate the impact of colony identity (genetics), evolutionary history (species), and the environment on nest architecture, we compared how two species of harvester ants, Pogonomyrmex californicus and Veromessor andrei, construct their nests under different environmental conditions. For each species, we allowed workers from four colonies to excavate nests in environments that differed in temperature and humidity for seven days. We then created casts of each nest to compare nest structures among colonies, between species, and across environmental conditions. We found differences in nest structure among colonies of the same species and between species. Interestingly, however, environmental conditions did not have a strong influence on nest structure in either species. Our results suggest that extended phenotypes are shaped more strongly by internal factors, such as genes and evolutionary history, and are less plastic in response to the abiotic environment, like many physical and physiological phenotypes.
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Affiliation(s)
- Sean O’Fallon
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, Los Angeles, CA, USA
- Address correspondence to S. O’Fallon. E-mail:
| | - Eva Sofia Horna Lowell
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Doug Daniels
- UCLA Library, 280 Charles E Young Dr N, Los Angeles, CA, USA
| | - Noa Pinter-Wollman
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, Los Angeles, CA, USA
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15
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Ledoux J, Ghanem R, Horaud M, López‐Sendino P, Romero‐Soriano V, Antunes A, Bensoussan N, Gómez‐Gras D, Linares C, Machordom A, Ocaña O, Templado J, Leblois R, Ben Souissi J, Garrabou J. Gradients of genetic diversity and differentiation across the distribution range of a Mediterranean coral: Patterns, processes and conservation implications. DIVERS DISTRIB 2021. [DOI: 10.1111/ddi.13382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Jean‐Baptiste Ledoux
- CIIMAR/CIMAR Centro Interdisciplinar de Investigação Marinha e Ambiental Universidade do Porto Porto Portugal
- Institut de Ciències del Mar CSIC Barcelona Spain
| | - Raouia Ghanem
- Institut National Agronomique de Tunisie Université de Carthage Tunis Tunisie
- Laboratoire de Biodiversité, Biotechnologies et Changements Climatiques (LR11ES09) Université Tunis El Manar Tunis Tunisie
| | | | | | | | - Agostinho Antunes
- CIIMAR/CIMAR Centro Interdisciplinar de Investigação Marinha e Ambiental Universidade do Porto Porto Portugal
- Departamento de Biologia Faculdade de Ciências Universidade do Porto Porto Portugal
| | | | | | - Cristina Linares
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals Institut de Recerca de la Biodiversitat (IRBIO) Universitat de Barcelona Barcelona Spain
| | - Annie Machordom
- Museo Nacional de Ciencias Naturales (MNCN‐CSIC) Madrid Spain
| | - Oscar Ocaña
- Departamento de Oceanografía Biológica y Biodiversidad Fundación Museo del Mar de Ceuta Ceuta Spain
| | - José Templado
- Museo Nacional de Ciencias Naturales (MNCN‐CSIC) Madrid Spain
| | - Raphaêl Leblois
- CBGP INRAE CIRAD IRD Montpellier SupAgro University of Montpellier Montpellier France
- Institut de Biologie Computationnelle University of Montpellier Montpellier France
| | - Jamila Ben Souissi
- Institut National Agronomique de Tunisie Université de Carthage Tunis Tunisie
- Laboratoire de Biodiversité, Biotechnologies et Changements Climatiques (LR11ES09) Université Tunis El Manar Tunis Tunisie
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16
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Pennycook JH, Scanlan PD. Ecological and Evolutionary responses to Antibiotic Treatment in the Human Gut Microbiota. FEMS Microbiol Rev 2021; 45:fuab018. [PMID: 33822937 PMCID: PMC8498795 DOI: 10.1093/femsre/fuab018] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 03/25/2021] [Indexed: 12/16/2022] Open
Abstract
The potential for antibiotics to affect the ecology and evolution of the human gut microbiota is well recognised and has wide-ranging implications for host health. Here, we review the findings of key studies that surveyed the human gut microbiota during antibiotic treatment. We find several broad patterns including the loss of diversity, disturbance of community composition, suppression of bacteria in the Actinobacteria phylum, amplification of bacteria in the Bacteroidetes phylum, and promotion of antibiotic resistance. Such changes to the microbiota were often, but not always, recovered following the end of treatment. However, many studies reported unique and/or contradictory results, which highlights our inability to meaningfully predict or explain the effects of antibiotic treatment on the human gut microbiome. This problem arises from variation between existing studies in three major categories: differences in dose, class and combinations of antibiotic treatments used; differences in demographics, lifestyles, and locations of subjects; and differences in measurements, analyses and reporting styles used by researchers. To overcome this, we suggest two integrated approaches: (i) a top-down approach focused on building predictive models through large sample sizes, deep metagenomic sequencing, and effective collaboration; and (ii) a bottom-up reductionist approach focused on testing hypotheses using model systems.
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Affiliation(s)
- Joseph Hugh Pennycook
- APC Microbiome Ireland, Biosciences Institute, University College Cork, College Road, Cork, T12 YT20, Ireland
- School of Mirobiology, Food Science & Technology Building, University College Cork, College Road, Cork, T12 K8AF, Ireland
| | - Pauline Deirdre Scanlan
- APC Microbiome Ireland, Biosciences Institute, University College Cork, College Road, Cork, T12 YT20, Ireland
- School of Mirobiology, Food Science & Technology Building, University College Cork, College Road, Cork, T12 K8AF, Ireland
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17
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Rybnikov S, Weissman DB, Hübner S, Korol AB. Fitness dependence preserves selection for recombination across diverse mixed mating strategies. J Theor Biol 2021; 528:110849. [PMID: 34331961 DOI: 10.1016/j.jtbi.2021.110849] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 06/13/2021] [Accepted: 07/24/2021] [Indexed: 12/16/2022]
Abstract
Meiotic recombination and the factors affecting its rate and fate in nature have inspired many studies in theoretical evolutionary biology. Classical theoretical models have inferred that recombination can be favored under a rather restricted parameter range. Thus, the ubiquity of recombination in nature remains an open question. However, these models assumed constant recombination with an equal rate across all individuals within the population, whereas empirical evidence suggests that recombination may display certain sensitivity to ecological stressors and/or genotype fitness. Models assuming condition-dependent recombination show that such a strategy can often be favored over constant recombination. Moreover, in our recent model with panmictic populations subjected to purifying selection, fitness-dependent recombination was quite often favored even when any constant recombination was rejected. By using numerical modeling, we test whether such a 'recombination-rescuing potential' of fitness dependence holds also beyond panmixia, given the recognized effect of mating strategy on the evolution of recombination. We show that deviations from panmixia generally increase the recombination-rescuing potential of fitness dependence, with the strongest effect under intermediate selfing or high clonality. We find that under partial clonality, the evolutionary advantage of fitness-dependent recombination is determined mostly by selection against heterozygotes and additive-by-additive epistasis, while under partial selfing, additive-by-dominance epistasis is also a driver.
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Affiliation(s)
- Sviatoslav Rybnikov
- Institute of Evolution, University of Haifa, Haifa 3498838, Israel; Department of Evolutionary and Environmental Biology, University of Haifa, Haifa 3498838, Israel.
| | | | - Sariel Hübner
- Institute of Evolution, University of Haifa, Haifa 3498838, Israel; Galilee Research Institute (MIGAL), Tel-Hai College, Upper Galilee 1220800, Israel
| | - Abraham B Korol
- Institute of Evolution, University of Haifa, Haifa 3498838, Israel; Department of Evolutionary and Environmental Biology, University of Haifa, Haifa 3498838, Israel
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18
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On the fitness of informative cues in complex environments. J Theor Biol 2021; 527:110819. [PMID: 34186098 DOI: 10.1016/j.jtbi.2021.110819] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 06/05/2021] [Accepted: 06/15/2021] [Indexed: 11/22/2022]
Abstract
To be able to deal with uncertainty is of primary importance to most living organisms. When cues provide information about the state of the environment, organisms can use them to respond flexibly. Life forms have evolved complex adaptations and sensory mechanisms to use these environmental cues and extract valuable information about the environment. Previous work has shown a theoretical limit to the amount of fitness benefit possible to be extracted from the cues. We show that the previously used information theoretical approaches can be generalised to scenarios involving any potential relationship between the number of possible phenotypes and environmental states. Such cases are relevant when physiological constraints or complex ecological scenarios lead to the number of environmental states exceeding potential phenotypes. We illustrate cases in which these scenarios can emerge: along environmental gradients, such as geographical transects or complex environments, where organisms adopt different bet-hedging strategies, switching stochastically between phenotypes or developing intermediate ones. In conclusion, we develop an information-theoretic extensible approach for investigating and quantifying fitness in ecological studies.
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19
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Závorka L, Lassus R, Britton JR, Cucherousset J. Phenotypic responses of invasive species to removals affect ecosystem functioning and restoration. GLOBAL CHANGE BIOLOGY 2020; 26:5693-5704. [PMID: 33463893 DOI: 10.1111/gcb.15271] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 06/03/2020] [Accepted: 06/27/2020] [Indexed: 06/12/2023]
Abstract
Reducing the abundances of invasive species by removals aims to minimize their ecological impacts and enable ecosystem recovery. Removal methods are usually selective, modifying phenotypic traits in the managed populations. However, there is little empirical evidence of how removal-driven changes in multiple phenotypic traits of surviving individuals of invasive species can affect ecosystem functioning and recovery. Overcoming this knowledge gap is highly relevant because individuals are the elemental units of ecological processes and so integrating individual-level responses into the management of biological invasions could improve their efficiency. Here we provide novel demonstration that removals by trapping, angling and biocontrol from lakes of the globally invasive crayfish Procambarus clarkii induced substantial changes in multiple phenotypic traits. A mesocosm experiment then revealed that these changes in phenotypic traits constrain recovery of basic ecosystem functions (decomposition of organic matter, benthic primary production) by acting in the opposite direction than the effects of reduced invader abundance. However, only minor ecological impacts of invader abundance and phenotypic traits variation remained a year after its complete eradication. Our study provides quantitative evidence to an original idea that removal-driven trait changes can dampen recovery of invaded ecosystems even when the abundance of invasive species is substantially reduced. We suggest that the phenotypic responses of invaders to the removal programme have strong effects on ecosystem recovery and should be considered within the management of biological invasions, particularly when complete eradication is not achievable.
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Affiliation(s)
- Libor Závorka
- Laboratoire Évolution & Diversité Biologique (EDB UMR 5174), CNRS, Université de Toulouse, IRD, Toulouse, France
| | - Rémy Lassus
- Laboratoire Évolution & Diversité Biologique (EDB UMR 5174), CNRS, Université de Toulouse, IRD, Toulouse, France
| | - John Robert Britton
- Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University, Poole, UK
| | - Julien Cucherousset
- Laboratoire Évolution & Diversité Biologique (EDB UMR 5174), CNRS, Université de Toulouse, IRD, Toulouse, France
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20
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Martin BT, Douglas MR, Chafin TK, Placyk JS, Birkhead RD, Phillips CA, Douglas ME. Contrasting signatures of introgression in North American box turtle (
Terrapene
spp.) contact zones. Mol Ecol 2020; 29:4186-4202. [DOI: 10.1111/mec.15622] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 08/19/2020] [Accepted: 08/24/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Bradley T. Martin
- Department of Biological Sciences University of Arkansas Fayetteville AR USA
| | - Marlis R. Douglas
- Department of Biological Sciences University of Arkansas Fayetteville AR USA
| | - Tyler K. Chafin
- Department of Biological Sciences University of Arkansas Fayetteville AR USA
| | - John S. Placyk
- Department of Biology University of Texas Tyler TX USA
- Science Division Trinity Valley Community College Athens TX USA
| | | | - Christopher A. Phillips
- Illinois Natural History Survey Prairie Research Institute University of Illinois Champaign IL USA
| | - Michael E. Douglas
- Department of Biological Sciences University of Arkansas Fayetteville AR USA
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21
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Láruson ÁJ, Yeaman S, Lotterhos KE. The Importance of Genetic Redundancy in Evolution. Trends Ecol Evol 2020; 35:809-822. [DOI: 10.1016/j.tree.2020.04.009] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 04/21/2020] [Accepted: 04/24/2020] [Indexed: 12/20/2022]
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22
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Genotyping-by-sequencing reveals the effects of riverscape, climate and interspecific introgression on the genetic diversity and local adaptation of the endangered Mexican golden trout (Oncorhynchus chrysogaster). CONSERV GENET 2020. [DOI: 10.1007/s10592-020-01297-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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23
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Milot E, Béchet A, Maris V. The dimensions of evolutionary potential in biological conservation. Evol Appl 2020; 13:1363-1379. [PMID: 32684964 PMCID: PMC7359841 DOI: 10.1111/eva.12995] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 04/13/2020] [Accepted: 04/17/2020] [Indexed: 01/05/2023] Open
Abstract
It is now well admitted by ecologists that the conservation of biodiversity should imply preserving the evolutionary processes that will permit its adaptation to ongoing and future environmental changes. This is attested by the ever-growing reference to the conservation of evolutionary potential in the scientific literature. The impression that one may have when reading papers is that conserving evolutionary potential can only be a good thing, whatever biological system is under scrutiny. However, different objectives, such as maintaining species richness versus ecosystem services, may express different, when not conflicting, underlying values attributed to biodiversity. For instance, biodiversity can be intrinsically valued, as worth it to be conserved per se, or it can be conserved as a means for human flourishing. Consequently, both the concept of evolutionary potential and the prescriptions derived from the commitment to conserve it remain problematic, due to a lack of explicit mention of the norms underlying different conservation visions. Here, we contend that those who advocate for the conservation of evolutionary potential should position their conception along four dimensions: what vehicles instantiate the evolutionary potential relevant to their normative commitment; what temporality is involved; how measurable evolutionary potential is, and what degree of human influence is tolerated. We need to address these dimensions if we are to determine why and when the maintenance of evolutionary potential is an appropriate target for the conservation of biodiversity.
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Affiliation(s)
- Emmanuel Milot
- Department of Chemistry, Biochemistry and Physics Université du Québec à Trois-Rivières Trois-Rivières Québec Canada
| | - Arnaud Béchet
- Tour du Valat Research Institute for the Conservation of Mediterranean Wetlands Arles France
| | - Virginie Maris
- Centre d'écologie fonctionnelle et évolutive, CNRS, EPHE, IRD Univ Montpellier Univ Paul Valéry Montpellier 3 Montpellier France
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24
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Rolshausen G, Hallman U, Grande FD, Otte J, Knudsen K, Schmitt I. Expanding the mutualistic niche: parallel symbiont turnover along climatic gradients. Proc Biol Sci 2020; 287:20192311. [PMID: 32228406 DOI: 10.1098/rspb.2019.2311] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Keystone mutualisms, such as corals, lichens or mycorrhizae, sustain fundamental ecosystem functions. Range dynamics of these symbioses are, however, inherently difficult to predict because host species may switch between different symbiont partners in different environments, thereby altering the range of the mutualism as a functional unit. Biogeographic models of mutualisms thus have to consider both the ecological amplitudes of various symbiont partners and the abiotic conditions that trigger symbiont replacement. To address this challenge, we here investigate 'symbiont turnover zones'--defined as demarcated regions where symbiont replacement is most likely to occur, as indicated by overlapping abundances of symbiont ecotypes. Mapping the distribution of algal symbionts from two species of lichen-forming fungi along four independent altitudinal gradients, we detected an abrupt and consistent β-diversity turnover suggesting parallel niche partitioning. Modelling contrasting environmental response functions obtained from latitudinal distributions of algal ecotypes consistently predicted a confined altitudinal turnover zone. In all gradients this symbiont turnover zone is characterized by approximately 12°C average annual temperature and approximately 5°C mean temperature of the coldest quarter, marking the transition from Mediterranean to cool temperate bioregions. Integrating the conditions of symbiont turnover into biogeographic models of mutualisms is an important step towards a comprehensive understanding of biodiversity dynamics under ongoing environmental change.
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Affiliation(s)
- Gregor Rolshausen
- Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Frankfurt am Main, Germany
| | - Uwe Hallman
- Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Frankfurt am Main, Germany
| | - Francesco Dal Grande
- Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Frankfurt am Main, Germany
| | - Jürgen Otte
- Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Frankfurt am Main, Germany
| | - Kerry Knudsen
- Department of Ecology, Czech University of Life Sciences Prague
- CULS, Prague, Czech Republic
| | - Imke Schmitt
- Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Frankfurt am Main, Germany.,Departement of Biological Sciences, Goethe University, Frankfurt am Main, Germany
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25
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Lehto WR, Tinghitella RM. Predator‐induced maternal and paternal effects independently alter sexual selection. Evolution 2020; 74:404-418. [DOI: 10.1111/evo.13906] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 11/27/2019] [Accepted: 12/01/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Whitley R. Lehto
- Department of Biological Sciences University of Denver Denver Colorado 80210
- Current Address: College of Natural Science Michigan State University East Lansing Michigan 48823
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26
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Kokko H. When Synchrony Makes the Best of Both Worlds Even Better: How Well Do We Really Understand Facultative Sex? Am Nat 2019; 195:380-392. [PMID: 32017623 DOI: 10.1086/706812] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Biological diversity abounds in potential study topics. Studies of model systems have their advantages, but reliance on a few well-understood cases may create false impressions of what biological phenomena are the norm. Here I focus on facultative sex, which is often hailed as offering the best of both worlds, in that rare sex offers benefits almost equal to obligate sex and avoids paying most of the demographic costs. How well do we understand when and why this form of sexual reproduction is expected to prevail? I show several gaps in the theoretical literature and, by contrasting asynchronous with synchronous sex, highlight the need to link sex theories to the theoretical underpinnings of bet hedging, on the one hand, and to mate limitation considerations, on the other. Condition-dependent sex and links between sex with dispersal or dormancy appear understudied. While simplifications are justifiable as a simple assumption structure enhances analytical tractability, much remains to be done to incorporate key features of real sex to the main theoretical edifice.
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27
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Chafin TK, Douglas MR, Martin BT, Douglas ME. Hybridization drives genetic erosion in sympatric desert fishes of western North America. Heredity (Edinb) 2019; 123:759-773. [PMID: 31431737 PMCID: PMC6834602 DOI: 10.1038/s41437-019-0259-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/24/2019] [Accepted: 07/30/2019] [Indexed: 01/26/2023] Open
Abstract
Many species have evolved or currently coexist in sympatry due to differential adaptation in a heterogeneous environment. However, anthropogenic habitat modifications can either disrupt reproductive barriers or obscure environmental conditions which underlie fitness gradients. In this study, we evaluated the potential for an anthropogenically-mediated shift in reproductive boundaries that separate two historically sympatric fish species (Gila cypha and G. robusta) endemic to the Colorado River Basin using ddRAD sequencing of 368 individuals. We first examined the integrity of reproductive isolation while in sympatry and allopatry, then characterized hybrid ancestries using genealogical assignment tests. We tested for localized erosion of reproductive isolation by comparing site-wise genomic clines against global patterns and identified a breakdown in the drainage-wide pattern of selection against interspecific heterozygotes. This, in turn, allowed for the formation of a hybrid swarm in one tributary, and asymmetric introgression where species co-occur. We also detected a weak but significant relationship between genetic purity and degree of consumptive water removal, suggesting a role for anthropogenic habitat modifications in undermining species boundaries or expanding historically limited introgression. In addition, results from basin-wide genomic clines suggested that hybrids and parental forms are adaptively nonequivalent. If so, then a failure to manage for hybridization will exacerbate the long-term extinction risk in parental populations. These results reinforce the role of anthropogenic habitat modification in promoting interspecific introgression in sympatric species by relaxing divergent selection. This, in turn, underscores a broader role for hybridization in decreasing global biodiversity within rapidly deteriorating environments.
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Affiliation(s)
- Tyler K Chafin
- Department of Biological Sciences, University of Arkansas, Fayetteville, AR, 72701, USA.
| | - Marlis R Douglas
- Department of Biological Sciences, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Bradley T Martin
- Department of Biological Sciences, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Michael E Douglas
- Department of Biological Sciences, University of Arkansas, Fayetteville, AR, 72701, USA
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28
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Llanos‐Garrido A, Pérez‐Tris J, Díaz JA. The combined use of raw and phylogenetically independent methods of outlier detection uncovers genome-wide dynamics of local adaptation in a lizard. Ecol Evol 2019; 9:14356-14367. [PMID: 31938524 PMCID: PMC6953648 DOI: 10.1002/ece3.5872] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 10/04/2019] [Accepted: 10/10/2019] [Indexed: 02/06/2023] Open
Abstract
Local adaptation is a dynamic process by which different allele combinations are selected in different populations at different times, and whose genetic signature can be inferred by genome-wide outlier analyses. We combined gene flow estimates with two methods of outlier detection, one of them independent of population coancestry (CIOA) and the other one not (ROA), to identify genetic variants favored when ecology promotes phenotypic convergence. We analyzed genotyping-by-sequencing data from five populations of a lizard distributed over an environmentally heterogeneous range that has been changing since the split of eastern and western lineages ca. 3 mya. Overall, western lizards inhabit forest habitat and are unstriped, whereas eastern ones inhabit shrublands and are striped. However, one population (Lerma) has unstriped phenotype despite its eastern ancestry. The analysis of 73,291 SNPs confirmed the east-west division and identified nonoverlapping sets of outliers (12 identified by ROA and 9 by CIOA). ROA revealed ancestral adaptive variation in the uncovered outliers that were subject to divergent selection and differently fixed for eastern and western populations at the extremes of the environmental gradient. Interestingly, such variation was maintained in Lerma, where we found high levels of heterozygosity for ROA outliers, whereas CIOA uncovered innovative variants that were selected only there. Overall, it seems that both the maintenance of ancestral variation and asymmetric migration have counterbalanced adaptive lineage splitting in our model species. This scenario, which is likely promoted by a changing and heterogeneous environment, could hamper ecological speciation of locally adapted populations despite strong genetic structure between lineages.
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Affiliation(s)
- Alejandro Llanos‐Garrido
- Informatics GroupFaculty of Arts and SciencesHarvard UniversityCambridgeMAUSA
- Departamento de BiodiversidadUniversidad Complutense de MadridMadridSpain
| | - Javier Pérez‐Tris
- Departamento de BiodiversidadUniversidad Complutense de MadridMadridSpain
| | - José A. Díaz
- Departamento de BiodiversidadUniversidad Complutense de MadridMadridSpain
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Quilodrán CS, Ruegg K, Sendell‐Price AT, Anderson EC, Coulson T, Clegg SM. The multiple population genetic and demographic routes to islands of genomic divergence. Methods Ecol Evol 2019. [DOI: 10.1111/2041-210x.13324] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Kristen Ruegg
- Department of Zoology University of Oxford Oxford UK
- Center for Tropical Research Institute of the Environment and Sustainability University of California, Los Angeles Los Angeles CA USA
- Department of Biology Colorado State University Fort Collins CO USA
| | | | - Eric C. Anderson
- Fisheries Ecology Division Southwest Fisheries Science Center National Marine Fisheries ServiceNOAA Santa Cruz CA USA
| | - Tim Coulson
- Department of Zoology University of Oxford Oxford UK
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30
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Fisher DN, Wilson AJ, Boutin S, Dantzer B, Lane JE, Coltman DW, Gorrell JC, McAdam AG. Social effects of territorial neighbours on the timing of spring breeding in North American red squirrels. J Evol Biol 2019; 32:559-571. [DOI: 10.1111/jeb.13437] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 02/25/2019] [Accepted: 03/01/2019] [Indexed: 02/06/2023]
Affiliation(s)
- David N. Fisher
- Department for Integrative Biology University of Guelph Guelph Ontario Canada
- Department of Psychology, Neuroscience & Behaviour McMaster University Hamilton Ontario Canada
| | - Alastair J. Wilson
- Centre for Ecology and Conservation University of Exeter Penryn Cornwall UK
| | - Stan Boutin
- Department of Biological Sciences University of Alberta Edmonton Alberta Canada
| | - Ben Dantzer
- Department of Psychology University of Michigan Ann Arbour Michigan
- Department of Ecology and Evolutionary Biology University of Michigan Ann Arbour Michigan
| | - Jeffrey E. Lane
- Department of Biology University of Saskatchewan Saskatoon Saskatchewan Canada
| | - David W. Coltman
- Department of Biological Sciences University of Alberta Edmonton Alberta Canada
| | - Jamie C. Gorrell
- Biology Department University of Vancouver Island Nanaimo British Columbia Canada
| | - Andrew G. McAdam
- Department for Integrative Biology University of Guelph Guelph Ontario Canada
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31
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Galliart M, Bello N, Knapp M, Poland J, St Amand P, Baer S, Maricle B, Smith AB, Johnson L. Local adaptation, genetic divergence, and experimental selection in a foundation grass across the US Great Plains' climate gradient. GLOBAL CHANGE BIOLOGY 2019; 25:850-868. [PMID: 30468548 DOI: 10.1111/gcb.14534] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 10/03/2018] [Accepted: 10/23/2018] [Indexed: 06/09/2023]
Abstract
Many prior studies have uncovered evidence for local adaptation using reciprocal transplant experiments. However, these studies are rarely conducted for a long enough time to observe succession and competitive dynamics in a community context, limiting inferences for long-lived species. Furthermore, the genetic basis of local adaptation and genetic associations with climate has rarely been identified. Here, we report on a long-term (6-year) experiment conducted under natural conditions focused on Andropogon gerardii, the dominant grass of the North American Great Plains tallgrass ecosystem. We focus on this foundation grass that comprises 80% of tallgrass prairie biomass and is widely used in 20,000 km2 of restoration. Specifically, we asked the following questions: (a) Whether ecotypes are locally adapted to regional climate in realistic ecological communities. (b) Does adaptive genetic variation underpin divergent phenotypes across the climate gradient? (c) Is there evidence of local adaptation if the plants are exposed to competition among ecotypes in mixed ecotype plots? Finally, (d) are local adaptation and genetic divergence related to climate? Reciprocal gardens were planted with 3 regional ecotypes (originating from dry, mesic, wet climate sources) of Andropogon gerardii across a precipitation gradient (500-1,200 mm/year) in the US Great Plains. We demonstrate local adaptation and differentiation of ecotypes in wet and dry environments. Surprisingly, the apparent generalist mesic ecotype performed comparably under all rainfall conditions. Ecotype performance was underpinned by differences in neutral diversity and candidate genes corroborating strong differences among ecotypes. Ecotype differentiation was related to climate, primarily rainfall. Without long-term studies, wrong conclusions would have been reached based on the first two years. Further, restoring prairies with climate-matched ecotypes is critical to future ecology, conservation, and sustainability under climate change.
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Affiliation(s)
| | - Nora Bello
- Statistics, Kansas State University, Manhattan, Kansas
| | - Mary Knapp
- State Climate Office, Kansas State University, Manhattan, Kansas
| | - Jesse Poland
- Dept of Plant Pathology, Kansas State University, Manhattan, Kansas
| | | | - Sara Baer
- Plant Biology and Center for Ecology, Southern Illinois University, Carbondale, Illinois
| | - Brian Maricle
- Biological Sciences, Fort Hays State University, Hays, Kansas
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32
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van den Bosch M, Baert JM, Müller W, Lens L, Stienen EWM. Specialization reduces foraging effort and improves breeding performance in a generalist bird. Behav Ecol 2019. [DOI: 10.1093/beheco/arz016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - Jan M Baert
- Terrestrial Ecology Unit (TEREC), Ghent University, Ghent, Belgium
- Behavioural Ecology and Ecophysiology Research Group, University of Antwerp, Antwerp, Belgium
| | - Wendt Müller
- Behavioural Ecology and Ecophysiology Research Group, University of Antwerp, Antwerp, Belgium
| | - Luc Lens
- Terrestrial Ecology Unit (TEREC), Ghent University, Ghent, Belgium
| | - Eric W M Stienen
- Research Institute for Nature and Forest (INBO), Brussels, Belgium
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33
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34
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Dalongeville A, Andrello M, Mouillot D, Lobreaux S, Fortin M, Lasram F, Belmaker J, Rocklin D, Manel S. Geographic isolation and larval dispersal shape seascape genetic patterns differently according to spatial scale. Evol Appl 2018; 11:1437-1447. [PMID: 30151051 PMCID: PMC6099820 DOI: 10.1111/eva.12638] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 04/03/2018] [Indexed: 12/12/2022] Open
Abstract
Genetic variation, as a basis of evolutionary change, allows species to adapt and persist in different climates and environments. Yet, a comprehensive assessment of the drivers of genetic variation at different spatial scales is still missing in marine ecosystems. Here, we investigated the influence of environment, geographic isolation, and larval dispersal on the variation in allele frequencies, using an extensive spatial sampling (47 locations) of the striped red mullet (Mullus surmuletus) in the Mediterranean Sea. Univariate multiple regressions were used to test the influence of environment (salinity and temperature), geographic isolation, and larval dispersal on single nucleotide polymorphism (SNP) allele frequencies. We used Moran's eigenvector maps (db-MEMs) and asymmetric eigenvector maps (AEMs) to decompose geographic and dispersal distances in predictors representing different spatial scales. We found that salinity and temperature had only a weak effect on the variation in allele frequencies. Our results revealed the predominance of geographic isolation to explain variation in allele frequencies at large spatial scale (>1,000 km), while larval dispersal was the major predictor at smaller spatial scale (<1,000 km). Our findings stress the importance of including spatial scales to understand the drivers of spatial genetic variation. We suggest that larval dispersal allows to maintain gene flows at small to intermediate scale, while at broad scale, genetic variation may be mostly shaped by adult mobility, demographic history, or multigenerational stepping-stone dispersal. These findings bring out important spatial scale considerations to account for in the design of a protected area network that would efficiently enhance protection and persistence capacity of marine species.
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Affiliation(s)
- Alicia Dalongeville
- EPHE, Biogéographie et Ecologie des VertébrésCEFE, UMR 5175, CNRSPSL Research UniversityUniversité de MontpellierUniversité Paul‐Valéry MontpellierMontpellierFrance
- MARBEC, UMR 9190, CNRS, IRDUniversité Montpellier – IfremerMontpellierFrance
| | - Marco Andrello
- EPHE, Biogéographie et Ecologie des VertébrésCEFE, UMR 5175, CNRSPSL Research UniversityUniversité de MontpellierUniversité Paul‐Valéry MontpellierMontpellierFrance
| | - David Mouillot
- MARBEC, UMR 9190, CNRS, IRDUniversité Montpellier – IfremerMontpellierFrance
| | - Stéphane Lobreaux
- Laboratoire d'Ecologie AlpineUMR‐CNRS 5553Université Joseph FourierGrenobleFrance
| | - Marie‐Josée Fortin
- Department of Ecology and Evolutionary BiologyUniversity of TorontoTorontoOntarioCanada
| | - Frida Lasram
- Laboratoire d'Océanologie et de GéosciencesUMR 8187 LOG CNRSUniversité du Littoral Côte d'OpaleWimereuxFrance
| | - Jonathan Belmaker
- Department of Zoology and the Steinhardt Museum of Natural HistoryTel Aviv UniversityTel AvivIsrael
| | - Delphine Rocklin
- Faculty of Humanities and Social SciencesDepartment of GeographyMemorial University of NewfoundlandSt John'sNLCanada
| | - Stéphanie Manel
- EPHE, Biogéographie et Ecologie des VertébrésCEFE, UMR 5175, CNRSPSL Research UniversityUniversité de MontpellierUniversité Paul‐Valéry MontpellierMontpellierFrance
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35
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Lindstedt C, Miettinen A, Freitak D, Ketola T, López-Sepulcre A, Mäntylä E, Pakkanen H. Ecological conditions alter cooperative behaviour and its costs in a chemically defended sawfly. Proc Biol Sci 2018; 285:rspb.2018.0466. [PMID: 30068673 DOI: 10.1098/rspb.2018.0466] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 07/06/2018] [Indexed: 01/24/2023] Open
Abstract
The evolution of cooperation and social behaviour is often studied in isolation from the ecology of organisms. Yet, the selective environment under which individuals evolve is much more complex in nature, consisting of ecological and abiotic interactions in addition to social ones. Here, we measured the life-history costs of cooperative chemical defence in a gregarious social herbivore, Diprion pini pine sawfly larvae, and how these costs vary under different ecological conditions. We ran a rearing experiment where we manipulated diet (resin content) and attack intensity by repeatedly harassing larvae to produce a chemical defence. We show that forcing individuals to allocate more to cooperative defence (high attack intensity) incurred a clear cost by decreasing individual survival and potency of chemical defence. Cooperative behaviour and the magnitude of its costs were further shaped by host plant quality. The number of individuals participating in group defence, immune responses and female growth decreased on a high resin diet under high attack intensity. We also found some benefits of cheating: non-defending males had higher growth rates across treatments. Taken together, these results suggest that ecological interactions can shape the adaptive value of cooperative behaviour and maintain variation in the frequency of cooperation and cheating.
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Affiliation(s)
- Carita Lindstedt
- Centre of Excellence in Biological Interactions, Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Antti Miettinen
- Centre of Excellence in Biological Interactions, Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Dalial Freitak
- Centre of Excellence in Biological Interactions, Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland.,Centre of Excellence in Biological Interactions, University of Helsinki, Helsinki, Finland
| | - Tarmo Ketola
- Centre of Excellence in Biological Interactions, Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Andres López-Sepulcre
- Centre of Excellence in Biological Interactions, Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland.,CNRS UMR 7618, Institute of Ecology and Environmental Sciences of Paris (iEES), Universite Pierre et Marie Curie, Paris, France
| | - Elina Mäntylä
- Applied Zoology/Animal Ecology, Institute of Biology, Freie Universität Berlin, Berlin, Germany
| | - Hannu Pakkanen
- Department of Chemistry, University of Jyväskylä, Jyväskylä, Finland
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36
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Abstract
The classic Darwinian theory and the Synthetic evolutionary theory and their linear models, while invaluable to study the origins and evolution of species, are not primarily designed to model the evolution of organisations, typically that of ecosystems, nor that of processes. How could evolutionary theory better explain the evolution of biological complexity and diversity? Inclusive network-based analyses of dynamic systems could retrace interactions between (related or unrelated) components. This theoretical shift from a Tree of Life to a Dynamic Interaction Network of Life, which is supported by diverse molecular, cellular, microbiological, organismal, ecological and evolutionary studies, would further unify evolutionary biology.
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Affiliation(s)
- Eric Bapteste
- Sorbonne Universités, UPMC Université Paris 06, Institut de Biologie Paris-Seine (IBPS), F-75005 Paris, France
- CNRS, UMR7138, Institut de Biologie Paris-Seine, F-75005 Paris, France
| | - Philippe Huneman
- Institut d’Histoire et de Philosophie des Sciences et des Techniques (CNRS / Paris I Sorbonne), F-75006 Paris, France
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37
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De Kort H, Baguette M, Prunier JG, Tessier M, Monsimet J, Turlure C, Stevens V. Genetic costructure in a meta-community under threat of habitat fragmentation. Mol Ecol 2018; 27:2193-2203. [PMID: 29603463 DOI: 10.1111/mec.14569] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/14/2018] [Indexed: 11/27/2022]
Abstract
Habitat fragmentation increasingly threatens the services provided by natural communities and ecosystem worldwide. An understanding of the eco-evolutionary processes underlying fragmentation-compromised communities in natural settings is lacking, yet critical to realistic and sustainable conservation. Through integrating the multivariate genetic, biotic and abiotic facets of a natural community module experiencing various degrees of habitat fragmentation, we provide unique insights into the processes underlying community functioning in real, natural conditions. The focal community module comprises a parasitic butterfly of conservation concern and its two obligatory host species, a plant and an ant. We show that both historical dispersal and ongoing habitat fragmentation shape population genetic diversity of the butterfly Phengaris alcon and its most limited host species (the plant Gentiana pneumonanthe). Genetic structure of each species was strongly driven by geographical structure, altitude and landscape connectivity. Strikingly, however, was the strong degree of genetic costructure among the three species that could not be explained by the spatial variables under study. This finding suggests that factors other than spatial configuration, including co-evolutionary dynamics and shared dispersal pathways, cause parallel genetic structure among interacting species. While the exact contribution of co-evolution and shared dispersal routes on the genetic variation within and among communities deserves further attention, our findings demonstrate a considerable degree of genetic parallelism in natural meta-communities. The significant effect of landscape connectivity on the genetic diversity and structure of the butterfly also suggests that habitat fragmentation may threaten the functioning of the community module on the long run.
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Affiliation(s)
- Hanne De Kort
- Station d'Ecologie Théorique et Expérimentale (UMR 5321 SETE), National Center for Scientific Research (CNRS), Université Toulouse III - Paul Sabatier, Moulis, France
| | - Michel Baguette
- Station d'Ecologie Théorique et Expérimentale (UMR 5321 SETE), National Center for Scientific Research (CNRS), Université Toulouse III - Paul Sabatier, Moulis, France.,Institut de Systématique, Evolution, Biodiversité (UMR 7205), Muséum National d'Histoire Naturelle, Paris, France
| | - Jérôme G Prunier
- Station d'Ecologie Théorique et Expérimentale (UMR 5321 SETE), National Center for Scientific Research (CNRS), Université Toulouse III - Paul Sabatier, Moulis, France
| | | | - Jérémy Monsimet
- Parc Naturel Régional des Marais du Cotentin et du Bessin, Carentan-les-Marais, France
| | - Camille Turlure
- Earth and Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Virginie Stevens
- Station d'Ecologie Théorique et Expérimentale (UMR 5321 SETE), National Center for Scientific Research (CNRS), Université Toulouse III - Paul Sabatier, Moulis, France
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38
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Martínez-Padilla J, Estrada A, Early R, Garcia-Gonzalez F. Evolvability meets biogeography: evolutionary potential decreases at high and low environmental favourability. Proc Biol Sci 2018; 284:rspb.2017.0516. [PMID: 28615500 DOI: 10.1098/rspb.2017.0516] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 05/12/2017] [Indexed: 11/12/2022] Open
Abstract
Understanding and forecasting the effects of environmental change on wild populations requires knowledge on a critical question: do populations have the ability to evolve in response to that change? However, our knowledge on how evolution works in wild conditions under different environmental circumstances is extremely limited. We investigated how environmental variation influences the evolutionary potential of phenotypic traits. We used published data to collect or calculate 135 estimates of evolvability of morphological traits of European wild bird populations. We characterized the environmental favourability of each population throughout the species' breeding distribution. Our results suggest that the evolutionary potential of morphological traits decreases as environmental favourability becomes high or low. Strong environmental selection pressures and high intra-specific competition may reduce species' evolutionary potential in low- and high- favourability areas, respectively. This suggests that species may be least able to adapt to new climate conditions at their range margins and at the centre. Our results underscore the need to consider the evolutionary potential of populations when studying the drivers of species distributions, particularly when predicting the effects of environmental change. We discuss the utility of integrating evolutionary dynamics into a biogeographical perspective to understand how environmental variation shapes evolutionary patterns. This approach would also produce more reliable predictions about the effect of environmental change on population persistence and therefore on biodiversity.
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Affiliation(s)
- J Martínez-Padilla
- Research Unit of Biodiversity, UMIB (CSIC, PA), University of Oviedo, C/Gonzalo Gutiérrez Quirós, s/n, 33600, Mieres, Asturias, Spain .,Estación Biológica de Doñana, C/Américo Vespucio, 26, 41092 Sevilla, Spain.,Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS-Université de La Rochelle, Villiers-en-Bois, France
| | - A Estrada
- Research Unit of Biodiversity, UMIB (CSIC, PA), University of Oviedo, C/Gonzalo Gutiérrez Quirós, s/n, 33600, Mieres, Asturias, Spain.,Biogeography, Diversity and Conservation Research Team, Department of Animal Biology, University of Málaga, Málaga, Spain
| | - R Early
- Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Exeter, UK
| | - F Garcia-Gonzalez
- Estación Biológica de Doñana, C/Américo Vespucio, 26, 41092 Sevilla, Spain.,Centre for Evolutionary Biology, The University of Western Australia, Crawley, Australia
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39
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Matthews B, Best RJ, Feulner PGD, Narwani A, Limberger R. Evolution as an ecosystem process: insights from genomics. Genome 2017; 61:298-309. [PMID: 29241022 DOI: 10.1139/gen-2017-0044] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Evolution is a fundamental ecosystem process. The study of genomic variation of organisms can not only improve our understanding of evolutionary processes, but also of contemporary and future ecosystem dynamics. We argue that integrative research between the fields of genomics and ecosystem ecology could generate new insights. Specifically, studies of biodiversity and ecosystem functioning, evolutionary rescue, and eco-evolutionary dynamics could all benefit from information about variation in genome structure and the genetic architecture of traits, whereas genomic studies could benefit from information about the ecological context of evolutionary dynamics. We propose new ways to help link research on functional genomic diversity with (reciprocal) interactions between phenotypic evolution and ecosystem change. Despite numerous challenges, we anticipate that the wealth of genomic data being collected on natural populations will improve our understanding of ecosystems.
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Affiliation(s)
- Blake Matthews
- a Eawag, Department of Aquatic Ecology, Center for Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland
| | - Rebecca J Best
- a Eawag, Department of Aquatic Ecology, Center for Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland.,b School of Earth Sciences and Environmental Sustainability, Northern Arizona University, 525 S. Beaver Street, Flagstaff, AZ 86011, USA
| | - Philine G D Feulner
- c Eawag, Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland.,d University of Bern, Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, Bern, Switzerland
| | - Anita Narwani
- a Eawag, Department of Aquatic Ecology, Center for Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland
| | - Romana Limberger
- a Eawag, Department of Aquatic Ecology, Center for Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland.,e Research Institute for Limnology, University of Innsbruck, Mondsee, Austria
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40
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Maschinski J, Albrecht MA. Center for Plant Conservation's Best Practice Guidelines for the reintroduction of rare plants. PLANT DIVERSITY 2017; 39:390-395. [PMID: 30159534 PMCID: PMC6112315 DOI: 10.1016/j.pld.2017.09.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/18/2017] [Accepted: 09/21/2017] [Indexed: 05/21/2023]
Abstract
Recent estimates indicate that one-fifth of botanical species worldwide are considered at risk of becoming extinct in the wild. One available strategy for conserving many rare plant species is reintroduction, which holds much promise especially when carefully planned by following guidelines and when monitored long-term. We review the Center for Plant Conservation Best Reintroduction Practice Guidelines and highlight important components for planning plant reintroductions. Before attempting reintroductions practitioners should justify them, should consider alternative conservation strategies, understand threats, and ensure that these threats are absent from any recipient site. Planning a reintroduction requires considering legal and logistic parameters as well as target species and recipient site attributes. Carefully selecting the genetic composition of founders, founder population size, and recipient site will influence establishment and population growth. Whenever possible practitioners should conduct reintroductions as experiments and publish results. To document whether populations are sustainable will require long-term monitoring for decades, therefore planning an appropriate monitoring technique for the taxon must consider current and future needs. Botanical gardens can play a leading role in developing the science and practice of plant reintroduction.
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Affiliation(s)
- Joyce Maschinski
- Center for Plant Conservation, San Diego Zoo Global, 15600 San Pasqual Valley Rd., Escondido, CA 92027, USA
| | - Matthew A. Albrecht
- Center for Conservation & Sustainable Development, Missouri Botanical Garden, P.O. Box 299, St. Louis, MO 63166, USA
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41
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Abstract
Metabolic gene clusters (MGCs) have provided some of the earliest glimpses at the biochemical machinery of yeast and filamentous fungi. MGCs encode diverse genetic mechanisms for nutrient acquisition and the synthesis/degradation of essential and adaptive metabolites. Beyond encoding the enzymes performing these discrete anabolic or catabolic processes, MGCs may encode a range of mechanisms that enable their persistence as genetic consortia; these include enzymatic mechanisms to protect their host fungi from their inherent toxicities, and integrated regulatory machinery. This modular, self-contained nature of MGCs contributes to the metabolic and ecological adaptability of fungi. The phylogenetic and ecological patterns of MGC distribution reflect the broad diversity of fungal life cycles and nutritional modes. While the origins of most gene clusters are enigmatic, MGCs are thought to be born into a genome through gene duplication, relocation, or horizontal transfer, and analyzing the death and decay of gene clusters provides clues about the mechanisms selecting for their assembly. Gene clustering may provide inherent fitness advantages through metabolic efficiency and specialization, but experimental evidence for this is currently limited. The identification and characterization of gene clusters will continue to be powerful tools for elucidating fungal metabolism as well as understanding the physiology and ecology of fungi.
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Affiliation(s)
- Jason C Slot
- The Ohio State University, Columbus, OH, United States.
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42
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Qin X, Hao K, Ma J, Huang X, Tu X, Ali MP, Pittendrigh BR, Cao G, Wang G, Nong X, Whitman DW, Zhang Z. Molecular Ecological Basis of Grasshopper ( Oedaleus asiaticus) Phenotypic Plasticity under Environmental Selection. Front Physiol 2017; 8:770. [PMID: 29066978 PMCID: PMC5641302 DOI: 10.3389/fphys.2017.00770] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 09/20/2017] [Indexed: 11/13/2022] Open
Abstract
While ecological adaptation in insects can be reflected by plasticity of phenotype, determining the causes and molecular mechanisms for phenotypic plasticity (PP) remains a crucial and still difficult question in ecology, especially where control of insect pests is involved. Oedaleus asiaticus is one of the most dominant pests in the Inner Mongolia steppe and represents an excellent system to study phenotypic plasticity. To better understand ecological factors affecting grasshopper phenotypic plasticity and its molecular control, we conducted a full transcriptional screening of O. asiaticus grasshoppers reared in four different grassland patches in Inner Mongolia. Grasshoppers showed different degrees of PP associated with unique gene expressions and different habitat plant community compositions. Grasshopper performance variables were susceptible to habitat environment conditions and closely associated with plant architectures. Intriguingly, eco-transcriptome analysis revealed five potential candidate genes playing important roles in grasshopper performance, with gene expression closely relating to PP and plant community factors. By linking the grasshopper performances to gene profiles and ecological factors using canonical regression, we first demonstrated the eco-transcriptomic architecture (ETA) of grasshopper phenotypic traits (ETAGPTs). ETAGPTs revealed plant food type, plant density, coverage, and height were the main ecological factors influencing PP, while insect cuticle protein (ICP), negative elongation factor A (NELFA), and lactase-phlorizin hydrolase (LCT) were the key genes associated with PP. Our study gives a clear picture of gene-environment interaction in the formation and maintenance of PP and enriches our understanding of the transcriptional events underlying molecular control of rapid phenotypic plasticity associated with environmental variability. The findings of this study may also provide new targets for pest control and highlight the significance of ecological management practice on grassland conservation.
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Affiliation(s)
- Xinghu Qin
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,School of Biology, University of St. Andrews, St. Andrews, United Kingdom.,Scientific Observation and Experimental Station of Pests in Xilingol Rangeland, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Xilinhot, China
| | - Kun Hao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jingchuan Ma
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,Scientific Observation and Experimental Station of Pests in Xilingol Rangeland, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Xilinhot, China
| | - Xunbing Huang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,Scientific Observation and Experimental Station of Pests in Xilingol Rangeland, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Xilinhot, China
| | - Xiongbing Tu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,Scientific Observation and Experimental Station of Pests in Xilingol Rangeland, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Xilinhot, China
| | - Md Panna Ali
- Entomology Division, Bangladesh Rice Research Institute, Dhaka, Bangladesh
| | - Barry R Pittendrigh
- Department of Entomology, Michigan State University, East Lansing, MI, United States
| | - Guangchun Cao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,Scientific Observation and Experimental Station of Pests in Xilingol Rangeland, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Xilinhot, China
| | - Guangjun Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,Scientific Observation and Experimental Station of Pests in Xilingol Rangeland, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Xilinhot, China
| | - Xiangqun Nong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,Scientific Observation and Experimental Station of Pests in Xilingol Rangeland, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Xilinhot, China
| | - Douglas W Whitman
- School of Biological Sciences, Illinois State University, Normal, IL, United States
| | - Zehua Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,Scientific Observation and Experimental Station of Pests in Xilingol Rangeland, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Xilinhot, China
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Conservation Evo-Devo: Preserving Biodiversity by Understanding Its Origins. Trends Ecol Evol 2017; 32:746-759. [DOI: 10.1016/j.tree.2017.07.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 06/27/2017] [Accepted: 07/03/2017] [Indexed: 02/01/2023]
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Rodríguez-Verdugo A, Buckley J, Stapley J. The genomic basis of eco-evolutionary dynamics. Mol Ecol 2017; 26:1456-1464. [PMID: 28160333 DOI: 10.1111/mec.14045] [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: 11/04/2016] [Revised: 01/22/2017] [Accepted: 01/25/2017] [Indexed: 12/30/2022]
Abstract
Recent recognition that ecological and evolutionary processes can operate on similar timescales has led to a rapid increase in theoretical and empirical studies on eco-evolutionary dynamics. Progress in the fields of evolutionary biology, genomics and ecology is greatly enhancing our understanding of rapid adaptive processes, the predictability of adaptation and the genetics of ecologically important traits. However, progress in these fields has proceeded largely independently of one another. In an attempt to better integrate these fields, the centre for 'Adaptation to a Changing Environment' organized a conference entitled 'The genomic basis of eco-evolutionary change' and brought together experts in ecological genomics and eco-evolutionary dynamics. In this review, we use the work of the invited speakers to summarize eco-evolutionary dynamics and discuss how they are relevant for understanding and predicting responses to contemporary environmental change. Then, we show how recent advances in genomics are contributing to our understanding of eco-evolutionary dynamics. Finally, we highlight the gaps in our understanding of eco-evolutionary dynamics and recommend future avenues of research in eco-evolutionary dynamics.
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Affiliation(s)
- Alejandra Rodríguez-Verdugo
- Adaptation to a Changing Environment, ETH Zürich, 8092, Zürich, Switzerland.,Department of Environmental Microbiology, Eawag, Dübendorf, Switzerland
| | - James Buckley
- Adaptation to a Changing Environment, ETH Zürich, 8092, Zürich, Switzerland
| | - Jessica Stapley
- Adaptation to a Changing Environment, ETH Zürich, 8092, Zürich, Switzerland
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