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Nota A, Bertolino S, Tiralongo F, Santovito A. Adaptation to bioinvasions: When does it occur? GLOBAL CHANGE BIOLOGY 2024; 30:e17362. [PMID: 38822565 DOI: 10.1111/gcb.17362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 05/16/2024] [Accepted: 05/21/2024] [Indexed: 06/03/2024]
Abstract
The presence of alien species represents a major cause of habitat degradation and biodiversity loss worldwide, constituting a critical environmental challenge of our time. Despite sometimes experiencing reduced propagule pressure, leading to a reduced genetic diversity and an increased chance of inbreeding depression, alien invaders are often able to thrive in the habitats of introduction, giving rise to the so-called "genetic paradox" of biological invasions. The adaptation of alien species to the new habitats is therefore a complex aspect of biological invasions, encompassing genetic, epigenetic, and ecological processes. Albeit numerous studies and reviews investigated the mechanistic foundation of the invaders' success, and aimed to solve the genetic paradox, still remains a crucial oversight regarding the temporal context in which adaptation takes place. Given the profound knowledge and management implications, this neglected aspect of invasion biology should receive more attention when examining invaders' ability to thrive in the habitats of introduction. Here, we discuss the adaptation mechanisms exhibited by alien species with the purpose of highlighting the timing of their occurrence during the invasion process. We analyze each stage of the invasion separately, providing evidence that adaptation mechanisms play a role in all of them. However, these mechanisms vary across the different stages of invasion, and are also influenced by other factors, such as the transport speed, the reproduction type of the invader, and the presence of human interventions. Finally, we provide insights into the implications for management, and identify knowledge gaps, suggesting avenues for future research that can shed light on species adaptability. This, in turn, will contribute to a more comprehensive understanding of biological invasions.
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Affiliation(s)
- Alessandro Nota
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
- Ente Fauna Marina Mediterranea, Scientific Organization for Research and Conservation of Marine Biodiversity, Avola, Italy
| | - Sandro Bertolino
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Francesco Tiralongo
- Ente Fauna Marina Mediterranea, Scientific Organization for Research and Conservation of Marine Biodiversity, Avola, Italy
- Department of Biological, Geological, and Environmental Sciences, University of Catania, Catania, Italy
- National Research Council, Institute of Marine Biological Resources and Biotechnologies, Ancona, Italy
| | - Alfredo Santovito
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
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2
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Lewis Najev BS, Neiman M. Invasive freshwater snails are less sensitive to population density than native conspecifics. Ecol Evol 2024; 14:e11161. [PMID: 38774144 PMCID: PMC11106046 DOI: 10.1002/ece3.11161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/19/2024] [Accepted: 03/01/2024] [Indexed: 05/24/2024] Open
Abstract
Understanding how and why some species or lineages become invasive is critically important for effectively predicting and mitigating biological invasions. Here, we address an important unanswered question in invasion biology: do key life-history traits of invasive versus native lineages within a species differ in response to key environmental stressors? We focus on the environmental factor of population density, which is a fundamental characteristic of all populations, and investigate how changes in density affect native versus invasive Potamopyrgus antipodarum (New Zealand mudsnail). P. antipodarum has invaded 39 countries and detrimentally affects invaded environments. Previous studies of native and invasive populations and from laboratory experiments have demonstrated that growth and reproduction of P. antipodarum is sensitive to population density, though whether and how this sensitivity varies across native versus invasive lineages remains uncharacterized. We quantified individual growth rate and reproduction in P. antipodarum from multiple distinct native and invasive lineages across three different population density treatments. The growth of native but not invasive lineages decreased as density increased. There was no differential effect of density treatment on embryo production of invasive versus native snails, but a significantly higher proportion of snails were reproductive in high density compared to intermediate density for invasive lineages. In native lineages, there were no significant differences in the relative frequency of reproductive snails across density treatments. While the extent to which these results from our laboratory study can be extrapolated to the more complex natural world remain unclear, our findings are consistent with a scenario where differential sensitivity to population density could help explain why some lineages become successful invaders. Our findings also align with previous studies that show that invasive P. antipodarum lineages exhibit a relatively wide range of tolerance to environmental stressors.
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Affiliation(s)
| | - Maurine Neiman
- Department of BiologyUniversity of IowaIowa CityIowaUSA
- Department of Gender, Women's and Sexuality StudiesUniversity of IowaIowa CityIowaUSA
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3
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Xu WB, Zhang YM, Li BZ, Lin CY, Chen DY, Cheng YX, Guo XL, Dong WR, Shu MA. Effects of low salinity stress on osmoregulation and gill transcriptome in different populations of mud crab Scylla paramamosain. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 867:161522. [PMID: 36634766 DOI: 10.1016/j.scitotenv.2023.161522] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 12/22/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Animals living in estuaries suffer from rapid and continuous salinity fluctuations, while the global warming and extreme precipitation aggravate this situation. Osmoregulation is important for estuarine animals adapt to salinity fluctuations. The present study investigated the effects of low salinity stress on osmoregulation and gill transcriptome in two populations of mud crab from Hangzhou Bay and Zhangzhou Bay of China, respectively. Crabs were transferred from salinity 25 ppt to 5 ppt for 96 h. Edematous swelling in gill filaments was caused by low salinity stress and was more serious in Zhangzhou Bay population. Gill Na+/K+-ATPase activity increased (p < 0.01) in both populations under the low salinity stress and was significantly higher (p < 0.01) in Hangzhou Bay population than in Zhangzhou Bay population. According to transcriptome analysis, there were 191 genes differentially expressed under the low salinity stress in gill tissue of both populations. Several ion transport and energy metabolism related pathways, as well as the arginine and proline metabolism pathway, were enriched by these genes. On the other hand, 272 genes were identified to differentially express between two populations under the low salinity stress, but not under the control salinity. The enrichment analysis showed that these genes were mainly related to ion transport, energy metabolism, osmolytes metabolism and methyltransferase activity. In conclusion, the present study suggested that mud crab exploited a combination of extracellular anisosmotic regulation and intracellular isosmotic regulation for osmoregulation under the low salinity stress. Hangzhou Bay population showed a greater osmoregulatory capacity, which is probably due to the enhanced ion transport, energy supply, and osmolytes regulation. Meanwhile, epigenetic modification might also contribute to an inherent osmoregulation ability for Hangzhou Bay population to response to salinity fluctuation rapidly.
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Affiliation(s)
- Wen-Bin Xu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yan-Mei Zhang
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Bang-Ze Li
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chen-Yang Lin
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Da-Yong Chen
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yuan-Xin Cheng
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiao-Ling Guo
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wei-Ren Dong
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Miao-An Shu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
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4
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Stanicka A, Zając KS, Lachowska-Cierlik D, Lesiak K, Lewalska M, Cichy A, Żbikowski J, Żbikowska E. What Does the Haired Keel on the Shell Whorls of Potamopyrgus antipodarum (Gastropoda, Tateidae) Mean? Folia Biol (Praha) 2022. [DOI: 10.3409/fb_70-4.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In several ecosystems, Potamopyrgus antipodarum (Gray, 1853) (Gastropoda, Tateidae) is considered among the worst invasive species. Its tolerance to a broad range of environmental conditions has favoured its success in colonising new environments worldwide. However, population
crashes may occur, leading to significant fluctuations in snail densities. Such crashes might be linked to morphological changes in the shell whorls, like the emergence of a haired keel (carinatus morphotype). In this study, we investigated the link between the appearance of the carinatus
morphotype and the crashes in population densities over three years, based on field observations. The presented results show that after the emergence of the so-called carinatus morphotype, the population of P. antipodarum collapsed and did not recover for the next two years.
This may indicate that the carinatus morphotype is a defensive reaction to extremely unfavourable environmental conditions.
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Affiliation(s)
- Anna Stanicka
- Faculty of Biological and Veterinary Sciences,Department of Invertebrate Zoology and Parasitology, Nicolaus Copernicus University in Torun, Lwowska 1, 87-100 Toru??, Poland
| | - Kamila Stefania Zając
- Nature Education Centre, Jagiellonian University, Gronostajowa 5, 30-387 Kraków, Poland
| | - Dorota Lachowska-Cierlik
- Institute of Zoology and Biomedical Research, Jagiellonian University, Gronostajowa 9, 30-387 Kraków, Poland
| | - Kinga Lesiak
- Faculty of Biological and Veterinary Sciences, Department of Invertebrate Zoology and Parasitology, Nicolaus Copernicus University in Torun, Lwowska 1, 87-100 Toru??, Poland
| | - Monika Lewalska
- Faculty of Biological and Veterinary Sciences,Department of Invertebrate Zoology and Parasitology, Nicolaus Copernicus University in Torun, Lwowska 1, 87-100 Toru??, Poland
| | - Anna Cichy
- Faculty of Biological and Veterinary Sciences,Department of Invertebrate Zoology and Parasitology, Nicolaus Copernicus University in Torun, Lwowska 1, 87-100 Toru??, Poland
| | - Janusz Żbikowski
- Faculty of Biological and Veterinary Sciences, Department of Ecology and Biogeography, Nicolaus Copernicus University in Torun, Lwowska 1, 87-100 Toruñ, Poland
| | - Elżbieta Żbikowska
- Faculty of Biological and Veterinary Sciences,Department of Invertebrate Zoology and Parasitology, Nicolaus Copernicus University in Torun, Lwowska 1, 87-100 Toru??, Poland
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5
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Männer L, Mundinger C, Haase M. Stay in shape: Assessing the adaptive potential of shell morphology and its sensitivity to temperature in the invasive New Zealand mud snail
Potamopyrgus antipodarum
through phenotypic plasticity and natural selection in Europe. Ecol Evol 2022; 12:e9314. [PMID: 36203624 PMCID: PMC9526036 DOI: 10.1002/ece3.9314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 08/09/2022] [Accepted: 08/19/2022] [Indexed: 11/16/2022] Open
Abstract
Climate change may force organisms to adapt genetically or plastically to new environmental conditions. Invasive species show remarkable potential for rapid adaptation. The ovoviviparous New Zealand mud snail (NZMS), Potamopyrgus antipodarum, has successfully established across Europe with two clonally reproducing mitochondrial lineages since its arrival in the first half of the 19th century. Its remarkable variation in shell morphology was shown to be fitness relevant. We investigated the effects of temperature on shell morphology across 11 populations from Germany and the Iberian Peninsula in a common garden across three temperatures. We analyzed size and shape using geometric morphometrics. For both, we compared reaction norms and estimated heritabilities. For size, the interaction of temperature and haplotype explained about 50% of the total variance. We also observed more genotype by environment interactions indicating a higher degree of population differentiation than in shape. Across the three temperatures, size followed the expectations of the temperature‐size rule, with individuals growing larger in cold environments. Changes in shape may have compensated for changes in size affecting space for brooding embryos. Heritability estimates were relatively high. As indicated by the very low coefficients of variation for clonal repeatability (CVA), they can probably not be compared in absolute terms. However, they showed some sensitivity to temperature, in haplotype t more so than in z, which was only found in Portugal. The low CVA values indicate that genetic variation among European populations is still restricted with a low potential to react to selection. A considerable fraction of the genetic variation was due to differences between the clonal lineages. The NZMS has apparently not been long enough in Europe to accumulate significant genetic variation relevant for morphological adaptation. As temperature is obviously not the sole factor influencing shell morphology, their interaction will probably not be a factor limiting population persistence under a warming climate in Europe.
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Affiliation(s)
- Lisa Männer
- AG Vogelwarte, Zoological Institute and MuseumUniversity of GreifswaldGreifswaldGermany
| | - Carolin Mundinger
- AG Applied Zoology and Nature Conservation, Zoological Institute and MuseumUniversity of GreifswaldGreifswaldGermany
| | - Martin Haase
- AG Vogelwarte, Zoological Institute and MuseumUniversity of GreifswaldGreifswaldGermany
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6
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Haubrock PJ, Ahmed DA, Cuthbert RN, Stubbington R, Domisch S, Marquez JRG, Beidas A, Amatulli G, Kiesel J, Shen LQ, Soto I, Angeler DG, Bonada N, Cañedo-Argüelles M, Csabai Z, Datry T, de Eyto E, Dohet A, Drohan E, England J, Feio MJ, Forio MAE, Goethals P, Graf W, Heino J, Hudgins EJ, Jähnig SC, Johnson RK, Larrañaga A, Leitner P, L'Hoste L, Lizee MH, Maire A, Rasmussen JJ, Schäfer RB, Schmidt-Kloiber A, Vannevel R, Várbíró G, Wiberg-Larsen P, Haase P. Invasion impacts and dynamics of a European-wide introduced species. GLOBAL CHANGE BIOLOGY 2022; 28:4620-4632. [PMID: 35570183 DOI: 10.1111/gcb.16207] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 04/16/2022] [Indexed: 06/15/2023]
Abstract
Globalization has led to the introduction of thousands of alien species worldwide. With growing impacts by invasive species, understanding the invasion process remains critical for predicting adverse effects and informing efficient management. Theoretically, invasion dynamics have been assumed to follow an "invasion curve" (S-shaped curve of available area invaded over time), but this dynamic has lacked empirical testing using large-scale data and neglects to consider invader abundances. We propose an "impact curve" describing the impacts generated by invasive species over time based on cumulative abundances. To test this curve's large-scale applicability, we used the data-rich New Zealand mud snail Potamopyrgus antipodarum, one of the most damaging freshwater invaders that has invaded almost all of Europe. Using long-term (1979-2020) abundance and environmental data collected across 306 European sites, we observed that P. antipodarum abundance generally increased through time, with slower population growth at higher latitudes and with lower runoff depth. Fifty-nine percent of these populations followed the impact curve, characterized by first occurrence, exponential growth, then long-term saturation. This behaviour is consistent with boom-bust dynamics, as saturation occurs due to a rapid decline in abundance over time. Across sites, we estimated that impact peaked approximately two decades after first detection, but the rate of progression along the invasion process was influenced by local abiotic conditions. The S-shaped impact curve may be common among many invasive species that undergo complex invasion dynamics. This provides a potentially unifying approach to advance understanding of large-scale invasion dynamics and could inform timely management actions to mitigate impacts on ecosystems and economies.
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Affiliation(s)
- Phillip J Haubrock
- Senckenberg Research Institute and Natural History Museum Frankfurt, Department of River Ecology and Conservation, Gelnhausen, Germany
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Vodňany, Czech Republic
| | - Danish A Ahmed
- Center for Applied Mathematics and Bioinformatics (CAMB), Department of Mathematics and Natural Sciences, Gulf University for Science and Technology, Hawally, Kuwait
| | - Ross N Cuthbert
- GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Kiel, Germany
- School of Biological Sciences, Queen's University Belfast, Belfast, UK
| | - Rachel Stubbington
- School of Science & Technology, Nottingham Trent University, Nottingham, UK
| | - Sami Domisch
- Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Department Community and Ecosystem Ecology, Berlin, Germany
| | - Jaime R G Marquez
- Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Department Community and Ecosystem Ecology, Berlin, Germany
| | - Ayah Beidas
- Center for Applied Mathematics and Bioinformatics (CAMB), Department of Mathematics and Natural Sciences, Gulf University for Science and Technology, Hawally, Kuwait
| | - Giuseppe Amatulli
- Yale University, School of the Environment, New Haven, Connecticut, USA
| | - Jens Kiesel
- Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Department Community and Ecosystem Ecology, Berlin, Germany
- Christian-Albrechts-University Kiel, Institute for Natural Resource Conservation, Department of Hydrology and Water Resources Management, Kiel, Germany
| | - Longzhu Q Shen
- Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Department Community and Ecosystem Ecology, Berlin, Germany
- Carnegie Mellon University, Institute for Green Science, Pittsburgh, Pennsylvania, USA
| | - Ismael Soto
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Vodňany, Czech Republic
| | - David G Angeler
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
- School of Natural Resources, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Núria Bonada
- Freshwater Ecology, Hydrology and Management, Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona (UB), Barcelona, Spain
| | - Miguel Cañedo-Argüelles
- Freshwater Ecology, Hydrology and Management, Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Recerca de l'Aigua (IdRA), Universitat de Barcelona (UB), Barcelona, Spain
| | - Zoltán Csabai
- Department of Hydrobiology, University of Pécs, Pécs, Hungary
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Thibault Datry
- INRAE, UR RiverLy, centre de Lyon-Villeurbanne, Villeurbanne, France
| | | | - Alain Dohet
- Environmental Research and Innovation (ERIN) Luxembourg Institute of Science and Technology (LIST), Belvaux, Luxembourg
| | - Emma Drohan
- Institute of Technology, Centre for Freshwater and Environmental Studies, Dundalk, Ireland
| | | | - Maria J Feio
- MARE - Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Marie A E Forio
- Department of Animal Sciences and Aquatic Ecology, Ghent University, Ghent, Belgium
| | - Peter Goethals
- Department of Animal Sciences and Aquatic Ecology, Ghent University, Ghent, Belgium
| | - Wolfram Graf
- University of Natural Resources and Life Sciences, Institute of Hydrobiology and Aquatic Ecosystem Management, Vienna, Austria
| | - Jani Heino
- Finnish Environment Institute, Freshwater Centre, Oulu, Finland
| | - Emma J Hudgins
- Department of Biology, Carleton University, Ottawa, Canada
| | - Sonja C Jähnig
- Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Department Community and Ecosystem Ecology, Berlin, Germany
- Geography Department, Faculty of Mathematics and Natural Sciences, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Richard K Johnson
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Aitor Larrañaga
- Department of Plant Biology and Ecology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Patrick Leitner
- University of Natural Resources and Life Sciences, Institute of Hydrobiology and Aquatic Ecosystem Management, Vienna, Austria
| | - Lionel L'Hoste
- Environmental Research and Innovation (ERIN) Luxembourg Institute of Science and Technology (LIST), Belvaux, Luxembourg
| | - Marie-Helene Lizee
- RECOVER Research Unit, National Research Institute for Agriculture, Food and Environment (INRAE), Aix-en-Provence, France
| | - Anthony Maire
- EDF R&D, Laboratoire National d'Hydraulique et Environnement (LNHE), Chatou, France
| | - Jes J Rasmussen
- Section for Nature Based Solutions, Norwegian Institute for Water Research (NIVA), Oslo, Norway
| | - Ralf B Schäfer
- University of Koblenz Landau, Institute for Environmental Sciences, Landau, Germany
| | - Astrid Schmidt-Kloiber
- University of Natural Resources and Life Sciences, Institute of Hydrobiology and Aquatic Ecosystem Management, Vienna, Austria
| | | | - Gábor Várbíró
- Department of Tisza Research, Institute of Aquatic Ecology, Centre for Ecological Research, Debrecen, Hungary
| | | | - Peter Haase
- Senckenberg Research Institute and Natural History Museum Frankfurt, Department of River Ecology and Conservation, Gelnhausen, Germany
- University of Duisburg-Essen, Faculty of Biology, Essen, Germany
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7
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Donne C, Larkin K, Adrian-Tucci C, Good A, Kephart C, Neiman M. Life-history trait variation in native versus invasive asexual New Zealand mud snails. Oecologia 2022; 199:785-795. [PMID: 35877050 DOI: 10.1007/s00442-022-05222-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 06/19/2022] [Indexed: 11/26/2022]
Abstract
Potamopyrgus antipodarum is a New Zealand freshwater snail that is invasive worldwide. While native P. antipodarum populations are characterized by frequent coexistence between obligately sexual and obligately asexual individuals, only the asexual snails are known to invade other ecosystems. Despite low genetic diversity and the absence of sex, invasive asexual P. antipodarum are highly successful. Here, we quantified variation in three key life-history traits across invasive P. antipodarum lineages and compared this variation to already documented variation in these same traits in asexual native lineages to provide a deeper understanding of why some lineages become invasive. In particular, we evaluated if invasive lineages of P. antipodarum could be successful because they represent life-history variation from native ancestors that could facilitate invasion. We found that invasive snails displayed a non-representative sample of native diversity, with invasive snails growing more slowly and maturing more rapidly than their native counterparts. These results are consistent with expectations of a scenario where invasive lineages represent a subset of native variation that is beneficial in the setting of invasion. Together, these results help illuminate the mechanisms driving the worldwide expansion of invasive populations of these snails.
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Affiliation(s)
- Carina Donne
- Department of Biology, University of Iowa, Iowa City, IA, 52242, USA.
- Department of Biology, Colorado State University, Fort Collins, CO, 80521, USA.
| | - Katelyn Larkin
- Department of Biology, University of Iowa, Iowa City, IA, 52242, USA
| | | | - Abby Good
- Department of Biology, University of Iowa, Iowa City, IA, 52242, USA
| | - Carson Kephart
- Department of Biology, University of Iowa, Iowa City, IA, 52242, USA
| | - Maurine Neiman
- Department of Biology, University of Iowa, Iowa City, IA, 52242, USA
- Department of Gender, Women's, and Sexuality Studies, University of Iowa, Iowa City, IA, 52242, USA
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8
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McElroy KE, Bankers L, Soper D, Hehman G, Boore JL, Logsdon JM, Neiman M. Patterns of gene expression in ovaries of sexual vs. asexual lineages of a freshwater snail. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.845640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Why sexual reproduction is so common when asexual reproduction should be much more efficient and less costly remains an open question in evolutionary biology. Comparisons between otherwise similar sexual and asexual taxa allow us to characterize the genetic architecture underlying asexuality, which can, in turn, illuminate how this reproductive mode transition occurred and the mechanisms by which it is maintained or disrupted. Here, we used transcriptome sequencing to compare patterns of ovarian gene expression between actively reproducing obligately sexual and obligately asexual females from multiple lineages of Potamopyrgus antipodarum, a freshwater New Zealand snail characterized by frequent separate transitions to asexuality and coexistence of otherwise similar sexual and asexual lineages. We also used these sequence data to evaluate whether population history accounts for variation in patterns of gene expression. We found that source population was a major source of gene expression variation, and likely more influential than reproductive mode. This outcome for these common garden-raised snails is strikingly similar to earlier results from field-collected snails. While we did not identify a likely set of candidate genes from expression profiles that could plausibly explain how transitions to asexuality occurred, we identified around 1,000 genes with evidence of differential expression between sexual and asexual reproductive modes, and 21 genes that appear to exhibit consistent expression differences between sexuals and asexuals across genetic backgrounds. This second smaller set of genes provides a good starting point for further exploration regarding a potential role in the transition to asexual reproduction. These results mark the first effort to characterize the causes of asexuality in P. antipodarum, demonstrate the apparently high heritability of gene expression patterns in this species, and hint that for P. antipodarum, transitions to asexuality might not necessarily be strongly associated with broad changes in gene expression.
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9
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Luo M, Zhao B, Zhang J, Qin Z. Phenotypic plasticity of the invasive apple snail, Pomacea canaliculata, in China: a morphological differentiation analysis. MOLLUSCAN RESEARCH 2022. [DOI: 10.1080/13235818.2022.2064043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Mingzhu Luo
- Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, People’s Republic of China
| | - Benliang Zhao
- Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, People’s Republic of China
- Guangdong Provincial Engineering Technology Research Center of Modern Eco-agriculture and Circular Agriculture, Guangzhou, People’s Republic of China
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangzhou, People’s Republic of China
| | - Jiaen Zhang
- Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, People’s Republic of China
- Guangdong Provincial Engineering Technology Research Center of Modern Eco-agriculture and Circular Agriculture, Guangzhou, People’s Republic of China
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangzhou, People’s Republic of China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, People’s Republic of China
| | - Zhong Qin
- Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, People’s Republic of China
- Guangdong Provincial Engineering Technology Research Center of Modern Eco-agriculture and Circular Agriculture, Guangzhou, People’s Republic of China
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangzhou, People’s Republic of China
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10
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The New Zealand mud snail (Potamopyrgus antipodarum): autecology and management of a global invader. Biol Invasions 2022. [DOI: 10.1007/s10530-021-02681-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Matoo OB, Neiman M. Bringing Disciplines and People Together to Characterize the Plastic and Genetic Responses of Molluscs to Environmental Change. Integr Comp Biol 2021; 61:1689-1698. [PMID: 34435639 PMCID: PMC8699093 DOI: 10.1093/icb/icab186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Molluscs are remarkably diverse and are found across nearly all ecosystems, meaning that members of this ancient animal phylum provide a powerful means to study genomic-phenotype connections in a climate change framework. Recent advances in genomic sequencing technologies and genome assembly approaches finally allow the relatively cheap and tractable assembly of high-quality mollusc genome resources. After a brief review of these issues and advances, we use a case-study approach to provide some concrete examples of phenotypic plasticity and genomic adaptation in molluscs in response to environmental factors expected to be influenced by climate change. Our goal is to use molluscs as a "common currency" to demonstrate how organismal and evolutionary biologists can use natural systems to make phenotype-genotype connections in the context of changing environments. In parallel, we emphasize the critical need to collaborate and integrate findings across taxa and disciplines in order to use new data and information to advance our understanding of mollusc biology in the context of global environmental change. We end with a brief synthetic summary of the papers inspired by the 2021 SICB Symposium "Genomic Perspectives in Comparative Physiology of Molluscs: Integration across Disciplines".
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Affiliation(s)
- Omera B Matoo
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln 68588, NE, USA
| | - Maurine Neiman
- Department of Biology, University of Iowa, Iowa City 52242, IA, USA.,Department of Gender, Women's, and Sexuality Studies, University of Iowa, Iowa City 52242, IA, USA
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12
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Maltseva AL, Varfolomeeva MA, Ayanka RV, Gafarova ER, Repkin EA, Pavlova PA, Shavarda AL, Mikhailova NA, Granovitch AI. Linking ecology, morphology, and metabolism: Niche differentiation in sympatric populations of closely related species of the genus Littorina ( Neritrema). Ecol Evol 2021; 11:11134-11154. [PMID: 34429908 PMCID: PMC8366845 DOI: 10.1002/ece3.7901] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 05/08/2021] [Accepted: 06/22/2021] [Indexed: 12/03/2022] Open
Abstract
Divergence of ecological niches in phylogenetically closely related species indicates the importance of ecology in speciation, especially for sympatric species are considered. Such ecological diversification provides an advantage of alleviating interspecies competition and promotes more efficient exploitation of environmental resources, thus being a basis for ecological speciation. We analyzed a group of closely related species from the subgenus Neritrema (genus Littorina, Caenogastropoda) from the gravel-bouldery shores. In two distant sites at the Barents and Norwegian Sea, we examined the patterns of snail distribution during low tide (quantitative sampling stratified by intertidal level, presence of macrophytes, macrophyte species, and position on them), shell shape and its variability (geometric morphometrics), and metabolic characteristics (metabolomic profiling). The studied species diversified microbiotopes, which imply an important role of ecological specification in the recent evolution of this group. The only exception to this trend was the species pair L. arcana / L. saxatilis, which is specifically discussed. The ecological divergence was accompanied by differences in shell shape and metabolomic characteristics. Significant differences were found between L. obtusata versus L. fabalis and L. saxatilis / L. arcana versus L. compressa both in shell morphology and in metabolomes. L. saxatilis demonstrated a clear variability depending on intertidal level which corresponds to a shift in conditions within the occupied microhabitat. Interestingly, the differences between L. arcana (inhabiting the upper intertidal level) and L. compressa (inhabiting the lower one) were analogous to those between the upper and lower fractions of L. saxatilis. No significant level-dependent changes were found between the upper and lower fractions of L. obtusata, most probably due to habitat amelioration by fucoid macroalgae. All these results are discussed in the contexts of the role of ecology in speciation, ecological niche dynamics and conservatism, and evolutionary history of the Neritrema species.
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Affiliation(s)
- Arina L Maltseva
- Department of Invertebrate Zoology St. Petersburg State University St. Petersburg Russia
| | - Marina A Varfolomeeva
- Department of Invertebrate Zoology St. Petersburg State University St. Petersburg Russia
| | - Roman V Ayanka
- Department of Invertebrate Zoology St. Petersburg State University St. Petersburg Russia
| | - Elizaveta R Gafarova
- Department of Invertebrate Zoology St. Petersburg State University St. Petersburg Russia
| | - Egor A Repkin
- Department of Invertebrate Zoology St. Petersburg State University St. Petersburg Russia
| | - Polina A Pavlova
- Department of Invertebrate Zoology St. Petersburg State University St. Petersburg Russia
| | - Alexei L Shavarda
- Department of Analytical Phytochemistry Komarov Botanical Institute St. Petersburg Russia
- Research Park Centre for Molecular and Cell Technologies St. Petersburg State University St. Petersburg Russia
| | - Natalia A Mikhailova
- Department of Invertebrate Zoology St. Petersburg State University St. Petersburg Russia
- Centre of Cell Technologies Institute of Cytology Russian Academy of Sciences St. Petersburg Russia
| | - Andrei I Granovitch
- Department of Invertebrate Zoology St. Petersburg State University St. Petersburg Russia
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Population genetics and geometric morphometrics of the freshwater snail Segmentina nitida reveal cryptic sympatric species of conservation value in Europe. CONSERV GENET 2021. [DOI: 10.1007/s10592-021-01369-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractSegmentina nitida Müller 1774 is a rare European freshwater snail of drainage ditches and marshland, which has seen a marked decrease in range (~ 80%) over the last 100 years in the UK. This has been attributed to over-dredging of drainage ditches for land management, conversion of grazing marshes to arable farmland, as well as eutrophication. Segmentina nitida is identified as a priority species in the UK Biodiversity Action Plan (UKBAP) that recommends further research to inform reintroduction and translocation for its conservation. We used nuclear markers (microsatellites and ITS2) and a mitochondrial (COI) marker to investigate population structure in S. nitida individuals sampled from Poland, Germany, Sweden, and the UK to identify differences within and between populations. Data based on 2D landmark-based geometric morphometrics of S. nitida shells was used to determine if phenotypic variation followed genetic differentiation. Two distinct genetic lineages of S. nitida were identified in ITS and COI phylogenies as well as cluster analysis of microsatellite markers, one of these lineages was present in eastern Europe (Poland, Sweden- Lineage 2), and one in western Europe (UK, Germany- Lineage 1), with lineages co-occurring in German populations. No genetic admixture was observed in German populations containing both lineages. These two lineages were also distinct in shape, with lineage 2 individuals having significantly wider shells and taller and wider apertures than those in Lineage 1. ~ 85% of shells assigned to the predicted lineage in a discriminant analysis of Procrustes shape coordinates. We infer that S. nitida includes at least one sympatric cryptic species. We discuss the implications of these findings on the conservation status of S. nitida in the UK and Europe.
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Fu R, Huang X, Zhan A. Identification of DNA (de)methylation-related genes and their transcriptional response to environmental challenges in an invasive model ascidian. Gene 2020; 768:145331. [PMID: 33278554 DOI: 10.1016/j.gene.2020.145331] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 10/26/2020] [Accepted: 11/27/2020] [Indexed: 01/07/2023]
Abstract
Marine invasive species are constantly challenged by acute or recurring environmental stresses during their range expansions. DNA methylation-mediated stress memory has been proposed to effectively affect species' response and enhance their overall performance in recurring environmental challenges. In order to further test this proposal in marine invasive species, we identified genes in the DNA methylation and demethylation processes in the highly invasive model species, Ciona robusta, and subsequently investigated the expression patterns of these genes under recurring salinity stresses. After a genome-wide comprehensive survey, we found a total of six genes, including two genes of DNA methyltransferase 3a (DNMT3a1 and DNMT3a2), and one gene of DNA methyltransferase 1 (DNMT1), methyl-CpG-binding domain protein 2 (MBD2), methyl-CpG-binding domain protein 4 (MBD4) and ten-eleven-translocation protein 1 (TET1). Phylogenetic reconstruction and domain arrangement analyses showed that the deduced proteins of the identified genes were evolutionarily conserved and functionally similar with their orthologs. All genes were constitutively expressed in all four tested tissues. Interestingly, we found time-dependent and stress-specific gene expression patterns under high and low salinity stresses. Under the recurring high salinity stresses, DNMT3a1 and TET1 conformed to the definition of memory genes, while under the recurring low salinity stresses, two DNMT3a paralogues were identified as the memory genes. Altogether, our results clearly showed that the transcriptional patterns of (de)methylation-related genes were significantly influenced by environmental stresses, and the transcriptional memory of some (de)methylation-related genes should play crucial roles in DNA methylation-mediated stress memory during the process of biological invasions.
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Affiliation(s)
- Ruiying Fu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100049, China
| | - Xuena Huang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Aibin Zhan
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100049, China.
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15
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Smithson M, Thorson JLM, Sadler-Riggleman I, Beck D, Skinner MK, Dybdahl M. Between-Generation Phenotypic and Epigenetic Stability in a Clonal Snail. Genome Biol Evol 2020; 12:1604-1615. [PMID: 32877512 PMCID: PMC7513791 DOI: 10.1093/gbe/evaa181] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2020] [Indexed: 12/25/2022] Open
Abstract
Epigenetic variation might play an important role in generating adaptive phenotypes by underpinning within-generation developmental plasticity, persistent parental effects of the environment (e.g., transgenerational plasticity), or heritable epigenetically based polymorphism. These adaptive mechanisms should be most critical in organisms where genetic sources of variation are limited. Using a clonally reproducing freshwater snail (Potamopyrgus antipodarum), we examined the stability of an adaptive phenotype (shell shape) and of DNA methylation between generations. First, we raised three generations of snails adapted to river currents in the lab without current. We showed that habitat-specific adaptive shell shape was relatively stable across three generations but shifted slightly over generations two and three toward a no-current lake phenotype. We also showed that DNA methylation specific to high-current environments was stable across one generation. This study provides the first evidence of stability of DNA methylation patterns across one generation in an asexual animal. Together, our observations are consistent with the hypothesis that adaptive shell shape variation is at least in part determined by transgenerational plasticity, and that DNA methylation provides a potential mechanism for stability of shell shape across one generation.
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Affiliation(s)
- Mark Smithson
- School of Biological Sciences, Center for Reproductive Biology, Washington State University
| | - Jennifer L M Thorson
- School of Biological Sciences, Center for Reproductive Biology, Washington State University
| | | | - Daniel Beck
- School of Biological Sciences, Center for Reproductive Biology, Washington State University
| | - Michael K Skinner
- School of Biological Sciences, Center for Reproductive Biology, Washington State University
| | - Mark Dybdahl
- School of Biological Sciences, Center for Reproductive Biology, Washington State University
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16
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López B, Mejía O, Zúñiga G. The effect of landscape on functional connectivity and shell shape in the land snail Humboldtiana durangoensis. PeerJ 2020; 8:e9177. [PMID: 32509461 PMCID: PMC7245337 DOI: 10.7717/peerj.9177] [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: 02/04/2020] [Accepted: 04/21/2020] [Indexed: 11/26/2022] Open
Abstract
The populations of Humboldtiana durangoensis have experienced a drastic reduction in the effective population size; in addition, the species is threatened by anthropogenic activities. For the aforementioned, landscape genetics will serve as a tool to define the potential evolutionarily significant units (ESU) for this species. To complete our objective, we evaluated the effect of cover vegetation and climate on the functional connectivity of the species from the last glacial maximum (LGM) to the present as well as the effect of climate on shell shape. Partial Mantel tests, distance-based redundance analysis and a Bayesian framework were used to evaluate connectivity. On the other hand, geometric morphometrics, phylogenetic principal component analysis and redundancy analysis were used for the analysis of shell shape. Our results suggest that the suitable areas have been decreasing since the LGM; also, vegetation cover rather than climate has influenced the genetic connectivity among land snail populations, although temperature had a high influence on shell shape in this species. In conclusion, vegetation cover was the main factor that determined the functional connectivity for the land snail; however, local selective pressures led to different phenotypes in shell shape that allowed us to postulate that each one of the previously defined genetic groups must be considered as a different ESU.
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Affiliation(s)
- Benjamín López
- Laboratorio de Variación Biológica y Evolución, Departamento de Zoología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Omar Mejía
- Laboratorio de Variación Biológica y Evolución, Departamento de Zoología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Gerardo Zúñiga
- Laboratorio de Variación Biológica y Evolución, Departamento de Zoología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
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17
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Tuset VM, Galimany E, Farrés A, Marco-Herrero E, Otero-Ferrer JL, Lombarte A, Ramón M. Recognising mollusc shell contours with enlarged spines: Wavelet vs Elliptic Fourier analyses. ZOOLOGY 2020; 140:125778. [PMID: 32279016 DOI: 10.1016/j.zool.2020.125778] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 02/07/2020] [Accepted: 02/16/2020] [Indexed: 12/01/2022]
Abstract
Gastropod shells may present large spines and sharp shapes that vary according to environmental, taxonomic, and evolutionary factors. In these cases, classic morphometric methods used to study shell contour might not provide a clear representation of morphological shell based on angular decomposition of contour. The present study analyzed and compared for the first time the robustness of the contour analysis using wavelet transformed and Elliptic Fourier descriptors for gastropod shells including enlarged spines. For that, we analyzed two geographical and ecological separated populations of Bolinus brandaris from the NW Mediterranean Sea. Results showed that contour analysis of gastropod shells with enlarged spines can be analyzed using both methodologies, but the wavelet analysis provided a better local discrimination. From an ecological perspective, shells with spines of different sizes were observed in both localities suggesting a wide plasticity of the species.
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Affiliation(s)
- Victor M Tuset
- Institut de Ciències del Mar (CSIC), Passeig Marítim de la Barceloneta 37-49, Barcelona 08003, Spain.
| | - Eve Galimany
- Institut de Ciències del Mar (CSIC), Passeig Marítim de la Barceloneta 37-49, Barcelona 08003, Spain
| | - Ada Farrés
- Institut de Ciències del Mar (CSIC), Passeig Marítim de la Barceloneta 37-49, Barcelona 08003, Spain
| | - Elena Marco-Herrero
- Institut de Ciències del Mar (CSIC), Passeig Marítim de la Barceloneta 37-49, Barcelona 08003, Spain; Centre Oceanogràfic de les Balears, Instituto Español de Oceanografía (IEO), Moll de Ponent, s/n, 07015 Palma de Mallorca, Spain
| | - José Luís Otero-Ferrer
- Biostatech, Advice, Training and Innovation in Biostatistics (Ltd), Edificio Emprendia, Campus Vida s/n, 15782 Santiago de Compostela, Spain
| | - Antoni Lombarte
- Institut de Ciències del Mar (CSIC), Passeig Marítim de la Barceloneta 37-49, Barcelona 08003, Spain
| | - Montserrat Ramón
- Institut de Ciències del Mar (CSIC), Passeig Marítim de la Barceloneta 37-49, Barcelona 08003, Spain
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18
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Van Bocxlaer B, Ortiz-Sepulveda CM, Gurdebeke PR, Vekemans X. Adaptive divergence in shell morphology in an ongoing gastropod radiation from Lake Malawi. BMC Evol Biol 2020; 20:5. [PMID: 31918659 PMCID: PMC6953155 DOI: 10.1186/s12862-019-1570-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 12/19/2019] [Indexed: 11/21/2022] Open
Abstract
Background Ecological speciation is a prominent mechanism of diversification but in many evolutionary radiations, particularly in invertebrates, it remains unclear whether supposedly critical ecological traits drove or facilitated diversification. As a result, we lack accurate knowledge on the drivers of diversification for most evolutionary radiations along the tree of life. Freshwater mollusks present an enigmatic example: Putatively adaptive radiations are being described in various families, typically from long-lived lakes, whereas other taxa represent celebrated model systems in the study of ecophenotypic plasticity. Here we examine determinants of shell-shape variation in three nominal species of an ongoing ampullariid radiation in the Malawi Basin (Lanistes nyassanus, L. solidus and Lanistes sp. (ovum-like)) with a common garden experiment and semi-landmark morphometrics. Results We found significant differences in survival and fecundity among these species in contrasting habitats. Morphological differences observed in the wild persisted in our experiments for L. nyassanus versus L. solidus and L. sp. (ovum-like), but differences between L. solidus and L. sp. (ovum-like) disappeared and re-emerged in the F1 and F2 generations, respectively. These results indicate that plasticity occurred, but that it is not solely responsible for the observed differences. Our experiments provide the first unambiguous evidence for genetic divergence in shell morphology in an ongoing freshwater gastropod radiation in association with marked fitness differences among species under controlled habitat conditions. Conclusions Our results indicate that differences in shell morphology among Lanistes species occupying different habitats have an adaptive value. These results also facilitate an accurate reinterpretation of morphological variation in fossil Lanistes radiations, and thus macroevolutionary dynamics. Finally, our work testifies that the shells of freshwater gastropods may retain signatures of adaptation at low taxonomic levels, beyond representing an evolutionary novelty responsible for much of the diversity and disparity in mollusks altogether.
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Affiliation(s)
- Bert Van Bocxlaer
- CNRS, Univ. Lille, UMR 8198 - Evo-Eco-Paleo, F-59000, Lille, France. .,Limnology Unit, Department of Biology, Ghent University, 9000, Ghent, Belgium. .,Department of Geology, Ghent University, 9000, Ghent, Belgium.
| | | | | | - Xavier Vekemans
- CNRS, Univ. Lille, UMR 8198 - Evo-Eco-Paleo, F-59000, Lille, France
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19
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Smithson MW, Dybdahl MF, Nuismer SL. The adaptive value of epigenetic mutation: Limited in large but high in small peripheral populations. J Evol Biol 2019; 32:1391-1405. [DOI: 10.1111/jeb.13535] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 08/28/2019] [Accepted: 08/30/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Mark W. Smithson
- School of Biological Sciences Washington State University Pullman WA USA
| | - Mark F. Dybdahl
- School of Biological Sciences Washington State University Pullman WA USA
| | - Scott L. Nuismer
- Department of Biological Sciences University of Idaho Moscow ID USA
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20
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Thorson JLM, Smithson M, Sadler-Riggleman I, Beck D, Dybdahl M, Skinner MK. Regional epigenetic variation in asexual snail populations among urban and rural lakes. ENVIRONMENTAL EPIGENETICS 2019; 5:dvz020. [PMID: 31723440 PMCID: PMC6836316 DOI: 10.1093/eep/dvz020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 10/02/2019] [Accepted: 10/03/2019] [Indexed: 05/27/2023]
Abstract
Epigenetic variation has the potential to influence environmentally dependent development and contribute to phenotypic responses to local environments. Environmental epigenetic studies of sexual organisms confirm the capacity to respond through epigenetic variation. An epigenetic response could be even more important in a population when genetic variation is lacking. A previous study of an asexual snail, Potamopyrgus antipodarum, demonstrated that different populations derived from a single clonal lineage differed in both shell phenotype and methylation signature when comparing lake versus river populations. Here, we examine methylation variation among lakes that differ in environmental disturbance and pollution histories. Snails were collected from a more pristine rural Lake 1 (Lake Lytle), and two urban lakes, Lake 2 (Capitol Lake) and Lake 3 (Lake Washington) on the Northwest Pacific coast. DNA methylation was assessed for each sample population using methylated DNA immunoprecipitation, MeDIP, followed by next-generation sequencing. The differential DNA methylation regions (DMRs) identified among the different lake comparisons suggested a higher number of DMRs and variation between rural Lake 1 and one urban Lake 2, and between the two urban Lakes 2 and 3, but limited variation between the rural Lake 1 and urban Lake 3. DMR genomic characteristics and gene associations were investigated. The presence of site-specific differences between each of these lake populations suggest an epigenetic response to varied environmental factors. The results do not support an effect of geographic distance in these populations. The role of dispersal distance among lakes, population history, environmental pollution and stably inherited methylation versus environmentally triggered methylation in producing the observed epigenetic variation are discussed. Observations support the proposal that epigenetic alterations may associate with phenotypic variation and environmental factors and history of the different lakes.
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Affiliation(s)
- Jennifer L M Thorson
- School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, USA
| | - Mark Smithson
- School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, USA
| | - Ingrid Sadler-Riggleman
- School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, USA
| | - Daniel Beck
- School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, USA
| | - Mark Dybdahl
- School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, USA
| | - Michael K Skinner
- School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, USA
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21
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Valladares MA, Méndez MA, Collado GA. Influenced but not determined by historical events: genetic, demographic and morphological differentiation in Heleobia ascotanensis from the Chilean Altiplano. PeerJ 2018; 6:e5802. [PMID: 30588392 PMCID: PMC6301281 DOI: 10.7717/peerj.5802] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 09/21/2018] [Indexed: 11/30/2022] Open
Abstract
In the present study, we focus on the phylogeographic pattern, demographic history and morphological differentiation of Heleobia ascotanensis, a freshwater gastropod restricted to the Ascotán saltpan in the Chilean Altiplano. The current distribution of the species is limited to twelve isolated or partially isolated springs that were affected by transitions between humid and arid periods during last glaciations. The genetic analysis of 322 specimens showed that H. ascotanensis is subdivided into three genetically divergent populations, with low and moderate degrees of historical gene flow among them and incipient morphological differentiation as a consequence of genetic and geographical isolation. Molecular analyses revealed different demographic histories among populations which seem to respond independently to climatic events, probably due to an environmental imposition and idiosyncratic strategies developed to cope with water availability. The results of this study and co-distributed taxa support the hypothesis that contemporary and historical events have influenced microevolutionary differentiation of these snails, although there is a need to complement further information to predict genetic or morphological divergence at microgeographic scale.
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Affiliation(s)
- Moisés A Valladares
- Laboratorio de Genética y Evolución, Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Región Metropolitana, Chile
| | - Marco A Méndez
- Laboratorio de Genética y Evolución, Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Región Metropolitana, Chile
| | - Gonzalo A Collado
- Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad del Bío-Bío, Chillán, Región del Bío-Bío, Chile
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22
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Ecomorphology of a generalist freshwater gastropod: complex relations of shell morphology, habitat, and fecundity. ORG DIVERS EVOL 2018. [DOI: 10.1007/s13127-018-0377-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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23
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Minton R, Hart KC, Fiorillo R, Brown C. Correlates of snail shell variation along a unidirectional freshwater gradient in Lithasia geniculata (Haldeman, 1840) (Caenogastropoda: Pleuroceridae) from the Duck River, Tennessee, USA. FOLIA MALACOLOGICA 2018. [DOI: 10.12657/folmal.026.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Sharbrough J, Cruise JL, Beetch M, Enright NM, Neiman M. Genetic Variation for Mitochondrial Function in the New Zealand Freshwater Snail Potamopyrgus antipodarum. J Hered 2018; 108:759-768. [PMID: 28460111 DOI: 10.1093/jhered/esx041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 04/26/2017] [Indexed: 02/04/2023] Open
Abstract
The proteins responsible for mitochondrial function are encoded by 2 different genomes with distinct inheritance regimes, rendering rigorous inference of genotype-phenotype connections intractable for all but a few model systems. Asexual organisms provide a powerful means to address these challenges because offspring produced without recombination inherit both nuclear and mitochondrial genomes from a single parent. As such, these offspring inherit mitonuclear genotypes that are identical to the mitonuclear genotypes of their parents and siblings but different from those of other asexual lineages. Here, we compared mitochondrial function across distinct asexual lineages of Potamopyrgus antipodarum, a New Zealand freshwater snail model for understanding the evolutionary consequences of asexuality. Our analyses revealed substantial phenotypic variation across asexual lineages at 3 levels of biological organization: mitogenomic, organellar, and organismal. These data demonstrate that different asexual lineages have different mitochondrial function phenotypes, likely reflecting heritable variation (i.e., the raw material for evolution) for mitochondrial function in P. antipodarum. The discovery of this variation combined with the methods developed here sets the stage to use P. antipodarum to study central evolutionary questions involving mitochondrial function, including whether mitochondrial mutation accumulation influences the maintenance of sexual reproduction in natural populations.
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Affiliation(s)
- Joel Sharbrough
- Department of Biology, University of Iowa, Iowa City, IA.,Department of Biology, Colorado State University, Fort Collins, CO
| | | | - Megan Beetch
- Department of Biology, University of Iowa, Iowa City, IA.,Department of Biology, University of St. Thomas, Saint Paul, MN
| | | | - Maurine Neiman
- Department of Biology, University of Iowa, Iowa City, IA
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Verhaegen G, McElroy KE, Bankers L, Neiman M, Haase M. Adaptive phenotypic plasticity in a clonal invader. Ecol Evol 2018; 8:4465-4483. [PMID: 29760888 PMCID: PMC5938463 DOI: 10.1002/ece3.4009] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 02/09/2018] [Accepted: 02/17/2018] [Indexed: 01/15/2023] Open
Abstract
Organisms featuring wide trait variability and occurring in a wide range of habitats, such as the ovoviviparous New Zealand freshwater snail Potamopyrgus antipodarum, are ideal models to study adaptation. Since the mid‐19th century, P. antipodarum, characterized by extremely variable shell morphology, has successfully invaded aquatic areas on four continents. Because these obligately and wholly asexual invasive populations harbor low genetic diversity compared to mixed sexual/asexual populations in the native range, we hypothesized that (1) this phenotypic variation in the invasive range might be adaptive with respect to colonization of novel habitats, and (2) that at least some of the variation might be caused by phenotypic plasticity. We surveyed 425 snails from 21 localities across northwest Europe to attempt to disentangle genetic and environmental effects on shell morphology. We analyzed brood size as proxy for fitness and shell geometric morphometrics, while controlling for genetic background. Our survey revealed 10 SNP genotypes nested into two mtDNA haplotypes and indicated that mainly lineage drove variation in shell shape but not size. Physicochemical parameters affected both shell shape and size and the interaction of these traits with brood size. In particular, stronger stream flow rates were associated with larger shells. Our measurements of brood size suggested that relatively larger slender snails with relatively large apertures were better adapted to strong flow than counterparts with broader shells and relatively small apertures. In conclusion, the apparent potential to modify shell morphology plays likely a key role in the invasive success of P. antipodarum; the two main components of shell morphology, namely shape and size, being differentially controlled, the former mainly genetically and the latter predominantly by phenotypic plasticity.
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Affiliation(s)
- Gerlien Verhaegen
- AG Vogelwarte Zoological Institute and Museum Ernst-Moritz-Arndt University of Greifswald Greifswald Germany
| | - Kyle E McElroy
- Department of Biology The University of Iowa Iowa City IA USA
| | - Laura Bankers
- Department of Biology The University of Iowa Iowa City IA USA
| | - Maurine Neiman
- Department of Biology The University of Iowa Iowa City IA USA
| | - Martin Haase
- AG Vogelwarte Zoological Institute and Museum Ernst-Moritz-Arndt University of Greifswald Greifswald Germany
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Pro Ków M, Kuźnik-Kowalska E, Mackiewicz P. Phenotypic plasticity can explain evolution of sympatric polymorphism in the hairy snail Trochulus hispidus (Linnaeus, 1758). Curr Zool 2018; 63:389-402. [PMID: 29491999 PMCID: PMC5804198 DOI: 10.1093/cz/zow082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 07/09/2016] [Indexed: 11/14/2022] Open
Abstract
Morphological variation of snails from the genus Trochulus is so huge that their taxonomy is unclear. The greatest variability concerns forms hispidus and sericeus/plebeius, which are often considered as separate species. To evidence the species barriers, we carried out crossbreeding experiments between these two sympatric morphs. Moreover, we compared the shell morphology of laboratory-bred offspring with their wild parents to test if the variation can be explained by the phenotypic plasticity model. We found that the two Trochulus morphs show no reproductive barriers. The fecundity rates, the mean clutch size, and F1 viability observed for all crosses were not significantly different. In hybrid crosses (in F2 generation), we also recorded reproduction compatibility, similar fecundity, and hatching success as in their parents. Accordingly, phylogenetic analyses revealed the significant grouping of sequences from these different morphs and supported no constrains in reproduction between them. Comparison of shell morphology between wild and laboratory samples showed that various characters appeared highly plastic. The average shell shape of the hispidus morph changed significantly from flat with wide umbilicus to elevated with narrower umbilicus such as in the sericeus/plebeius morph. All these findings indicate that the examined morphs do not represent separate biological species and the evolutionary process is not advanced enough to separate their genetic pool. Therefore, phenotypic plasticity has played a significant role in the evolution of Trochulus shell polymorphism. The two morphs can evolve independently in separate phylogenetic lineages under the influence of local environmental conditions.
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Affiliation(s)
- Małgorzata Pro Ków
- Museum of Natural History, University of Wrocław, Sienkiewicza 21, 50-335 Wrocław, Poland
| | - Elżbieta Kuźnik-Kowalska
- Department of Invertebrate Systematics and Ecology, Institute of Biology, Wrocław University of Environmental and Life Sciences, Kożuchowska 5b, 51-631 Wrocław, Poland
| | - Paweł Mackiewicz
- Department of Genomics, Faculty of Biotechnology, University of Wrocław, Fryderyka Joliot-Curie 14a, 50-383 Wrocław, Poland
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Laskar IB, Rajkumari K, Gupta R, Chatterjee S, Paul B, Rokhum SL. Waste snail shell derived heterogeneous catalyst for biodiesel production by the transesterification of soybean oil. RSC Adv 2018; 8:20131-20142. [PMID: 35541639 PMCID: PMC9080767 DOI: 10.1039/c8ra02397b] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 05/01/2018] [Indexed: 11/30/2022] Open
Abstract
A waste snail shell (Pila spp.) derived catalyst was used to produce biodiesel from soybean oil at room temperature for the first time. The snail shell was calcined at different temperatures of 400–1000 °C. The synthesized catalysts underwent XRD, SEM, TEM, EDS, FTIR, XRF, TG/DTA and N2 adsorption–desorption isotherm (BET) analysis. The major component CaO was determined at a calcination temperature of 900 °C as depicted in the XRD results. 100% conversion of soybean oil to methyl ester biodiesel was obtained, as confirmed by 1H NMR. A biodiesel yield of 98% was achieved under optimized reaction conditions such as a calcination temperature of 900 °C, a catalyst loading of 3 wt%, a reaction time of 7 h and a methanol to oil ratio of 6 : 1, and biodiesel conversion was confirmed by FT-NMR and IR spectroscopies. A total of 9 fatty acid methyl esters (FAMEs) were identified in the synthesized biodiesel by the retention time and fragmentation pattern data of GC-MS analysis. The catalyst was recycled 8 times without appreciable loss in its catalytic activity. A high biodiesel yield of 98% was obtained under these optimised conditions. The catalyst has the advantage of being a waste material, therefore it is easily prepared, cost free, highly efficient, biogenic, labor effective and environmentally friendly, making it a potential candidate as a green catalyst for low cost production of biodiesel at an industrial scale. A waste snail shell (Pila spp.) derived catalyst was used to produce biodiesel from soybean oil at room temperature for the first time.![]()
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Affiliation(s)
- Ikbal Bahar Laskar
- Department of Mechanical Engineering, National Institute of Technology Silchar, Assam-788010, India
| | - Kalyani Rajkumari
- Department of Chemistry, National Institute of Technology Silchar, Assam-788010, India
| | - Rajat Gupta
- Department of Mechanical Engineering, National Institute of Technology Silchar, Assam-788010, India
| | - Sushovan Chatterjee
- Department of Mechanical Engineering, National Institute of Technology Silchar, Assam-788010, India
| | - Bappi Paul
- Department of Chemistry, National Institute of Technology Silchar, Assam-788010, India
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28
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Thorson JLM, Smithson M, Beck D, Sadler-Riggleman I, Nilsson E, Dybdahl M, Skinner MK. Epigenetics and adaptive phenotypic variation between habitats in an asexual snail. Sci Rep 2017; 7:14139. [PMID: 29074962 PMCID: PMC5658341 DOI: 10.1038/s41598-017-14673-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 10/16/2017] [Indexed: 01/22/2023] Open
Abstract
In neo-Darwinian theory, adaptation results from a response to selection on relatively slowly accumulating genetic variation. However, more rapid adaptive responses are possible if selectable or plastic phenotypic variation is produced by epigenetic differences in gene expression. This rapid path to adaptation may prove particularly important when genetic variation is lacking, such as in small, bottlenecked, or asexual populations. To examine the potential for an epigenetic contribution to adaptive variation, we examined morphological divergence and epigenetic variation in genetically impoverished asexual populations of a freshwater snail, Potamopyrgus antipodarum, from distinct habitats (two lakes versus two rivers). These populations exhibit habitat specific differences in shell shape, and these differences are consistent with adaptation to water current speed. Between these same habitats, we also found significant genome wide DNA methylation differences. The differences between habitats were an order of magnitude greater than the differences between replicate sites of the same habitat. These observations suggest one possible mechanism for the expression of adaptive shell shape differences between habitats involves environmentally induced epigenetic differences. This provides a potential explanation for the capacity of this asexual snail to spread by adaptive evolution or plasticity to different environments.
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Affiliation(s)
- Jennifer L M Thorson
- Center for Reproductive Biology School of Biological Sciences Washington State University, Pullman, WA-99164-4236, USA
| | - Mark Smithson
- Center for Reproductive Biology School of Biological Sciences Washington State University, Pullman, WA-99164-4236, USA
| | - Daniel Beck
- Center for Reproductive Biology School of Biological Sciences Washington State University, Pullman, WA-99164-4236, USA
| | - Ingrid Sadler-Riggleman
- Center for Reproductive Biology School of Biological Sciences Washington State University, Pullman, WA-99164-4236, USA
| | - Eric Nilsson
- Center for Reproductive Biology School of Biological Sciences Washington State University, Pullman, WA-99164-4236, USA
| | - Mark Dybdahl
- Center for Reproductive Biology School of Biological Sciences Washington State University, Pullman, WA-99164-4236, USA.
| | - Michael K Skinner
- Center for Reproductive Biology School of Biological Sciences Washington State University, Pullman, WA-99164-4236, USA.
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29
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Vergara D, Fuentes JA, Stoy KS, Lively CM. Evaluating shell variation across different populations of a freshwater snail. MOLLUSCAN RESEARCH 2016. [DOI: 10.1080/13235818.2016.1253446] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Daniela Vergara
- Department of Biology, Indiana University, Bloomington, USA
- Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, USA
| | | | - Kayla S. Stoy
- Department of Biology, Indiana University, Bloomington, USA
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Becker M, Zielske S, Haase M. Conflict of mitochondrial phylogeny and morphology-based classification in a pair of freshwater gastropods (Caenogastropoda, Truncatelloidea, Tateidae) from New Caledonia. Zookeys 2016:17-32. [PMID: 27551195 PMCID: PMC4977999 DOI: 10.3897/zookeys.603.9144] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 06/17/2016] [Indexed: 11/26/2022] Open
Abstract
Morphological classification and mitochondrial phylogeny of a pair of morphologically defined species of New Caledonian freshwater gastropods, Hemistomiacockerelli and Hemistomiafabrorum, were incongruent. We asked whether these two nominal species can be unambiguously distinguished based on shell morphology or whether the taxonomic discrepancy inferred from these character types was reflected in the variation of shell morphology. Our investigations were based on phylogenetic analyses of a fragment of the mitochondrial cytochrome c oxidase subunit I, geometric morphometric analyses as well as micro computer tomography. The species presorted to morphospecies by eye overlapped in shell shape. However, statistically, all shells were correctly assigned, but not all of them significantly. Qualitatively, both nominal species can be unambiguously distinguished by the presence/absence of a prominent denticle within the shell. In the phylogenetic analyses, individuals from three populations clustered with the “wrong” morphospecies. In the absence of data from multiple loci, it was assumed for the single specimen from one of these populations that its misplacement was due to a recent hybridization event, based on its very shallow position in the tree. For the other two cases of misplacement neither introgression nor incomplete lineage sorting could be ruled out. Further investigations have to show whether the morphological overlap has a genetic basis or is due to phenotypic plasticity. In conclusion, despite their partly unresolved relationships Hemistomiacockerelli and Hemistomiafabrorum may be considered sister species, which are reliably diagnosable by the presence or absence of the denticle, but have not yet fully differentiated in all character complexes investigated.
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Affiliation(s)
- Marlen Becker
- Vogelwarte, Zoologisches Institut und Museum, Ernst-Moritz-Arndt-Universität Greifswald, Soldmannstraße 23, D-17489 Greifswald, Germany
| | - Susan Zielske
- Vogelwarte, Zoologisches Institut und Museum, Ernst-Moritz-Arndt-Universität Greifswald, Soldmannstraße 23, D-17489 Greifswald, Germany
| | - Martin Haase
- Vogelwarte, Zoologisches Institut und Museum, Ernst-Moritz-Arndt-Universität Greifswald, Soldmannstraße 23, D-17489 Greifswald, Germany
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31
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Haase M, Zielske S. Five new cryptic freshwater gastropod species from New Caledonia (Caenogastropoda, Truncatelloidea, Tateidae). Zookeys 2015:63-87. [PMID: 26478699 PMCID: PMC4602297 DOI: 10.3897/zookeys.523.6066] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 08/28/2015] [Indexed: 11/12/2022] Open
Abstract
During the course of a project aiming at the reconstruction of the colonization of the South Pacific islands by tateid gastropods based on molecular data we discovered five new species on New Caledonia belonging to the genera Hemistomia and Leiorhagium, respectively. We describe these species based on morphological, anatomical and genetic data. All five species are morphologically cryptic as they closely resemble or are even indistinguishable from known species stressing the importance of a comprehensive taxonomic approach integrating several methods. As a consequence of their small and fragmented geographic ranges and the rapidly progressing anthropogenic land cover changes on New Caledonia, all five species qualify as critically endangered according to the criteria of the IUCN.
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Affiliation(s)
- Martin Haase
- Vogelwarte, Zoologisches Institut und Museum, Ernst-Moritz-Arndt-Universität Greifswald, Soldmannstraße 23, D-17489 Greifswald, Germany
| | - Susan Zielske
- Vogelwarte, Zoologisches Institut und Museum, Ernst-Moritz-Arndt-Universität Greifswald, Soldmannstraße 23, D-17489 Greifswald, Germany
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32
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Levri EP, Clark TJ. Behavior in invasive New Zealand mud snails (Potamopyrgus antipodarum) is related to source population. Biol Invasions 2015. [DOI: 10.1007/s10530-014-0746-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Plasticity-mediated persistence in new and changing environments. INTERNATIONAL JOURNAL OF EVOLUTIONARY BIOLOGY 2014; 2014:416497. [PMID: 25386380 PMCID: PMC4216699 DOI: 10.1155/2014/416497] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 09/29/2014] [Accepted: 09/30/2014] [Indexed: 11/18/2022]
Abstract
Baldwin's synthesis of the Organicist position, first published in 1896 and elaborated in 1902, sought to rescue environmentally induced phenotypes from disrepute by showing their Darwinian significance. Of particular interest to Baldwin was plasticity's mediating role during environmental change or colonization—plastic individuals were more likely to successfully survive and reproduce in new environments than were nonplastic individuals. Once a population of plastic individuals had become established, plasticity could further mediate the future course of evolution. The evidence for plasticity-mediated persistence (PMP) is reviewed here with a particular focus on evolutionary rescue experiments, studies on invasive success, and the role of learning in survival. Many PMP studies are methodologically limited, showing that preexistent plasticity has utility in new environments (soft PMP) rather than directly demonstrating that plasticity is responsible for persistence (hard PMP). An ideal PMP study would be able to demonstrate that (1) plasticity preexisted environmental change, (2) plasticity was fortuitously beneficial in the new environment, (3) plasticity was responsible for individual persistence in the new environment, and (4) plasticity was responsible for population persistence in succeeding generations. Although PMP is not ubiquitous, Baldwin's hypotheses have been largely vindicated in theoretical and empirical studies, but much work remains.
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Guttel Y, Ben-Ami F. The maintenance of hybrids by parasitism in a freshwater snail. Int J Parasitol 2014; 44:1001-8. [PMID: 25173837 DOI: 10.1016/j.ijpara.2014.06.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 06/09/2014] [Accepted: 06/25/2014] [Indexed: 12/20/2022]
Abstract
Hybrids have often been labelled evolutionary dead-ends due to their lower fertility and viability. However, there is growing awareness that hybridisation between different species may play a constructive role in animal evolution as a means to create variability. Thus, hybridisation and introgression may contribute to adaptive evolution, for example with regards to natural antagonists (parasites, predators, competitors) and adaptation to local environmental conditions. Here we investigated whether parasite intensity contributes to the continuous recreation of hybrids in 74 natural populations of Melanopsis, a complex of freshwater snails with three species. We also examined, under laboratory conditions, whether hybrids and their parental taxa differ in their tolerance of low and high temperatures and salinity levels. Infections were consistently less prevalent in males than in females, and lower in snails from deeper habitats. Infection prevalence in hybrids was significantly lower than in the parental taxa. Low hybrid infection rates could not be explained by sediment type, snail density or geographic distribution of the sampling sites. Interestingly, infected hybrid snails did not show signs of parasite-induced gigantism, whereas all parental taxa did. We found that hybrids mostly coped with extreme temperatures and salinity levels as well as their parental taxa did. Taken together, our results suggest that Melanopsis hybrids perform better in the presence of parasites and environmental stress. This may explain the widespread and long-term occurrence of Melanopsis hybrids as evidenced by paleontological and biogeographic data. Hybridisation may be an adaptive host strategy, reducing infection rates and resisting gigantism.
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Affiliation(s)
- Yonathan Guttel
- Department of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Frida Ben-Ami
- Department of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel.
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Kistner EJ, Dybdahl MF. Parallel variation among populations in the shell morphology between sympatric native and invasive aquatic snails. Biol Invasions 2014. [DOI: 10.1007/s10530-014-0691-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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36
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Phenotypic plasticity of the introduced New Zealand mud snail, Potamopyrgus antipodarum, compared to sympatric native snails. PLoS One 2014; 9:e93985. [PMID: 24699685 PMCID: PMC3974863 DOI: 10.1371/journal.pone.0093985] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 03/12/2014] [Indexed: 11/19/2022] Open
Abstract
Phenotypic plasticity is likely to be important in determining the invasive potential of a species, especially if invasive species show greater plasticity or tolerance compared to sympatric native species. Here in two separate experiments we compare reaction norms in response to two environmental variables of two clones of the New Zealand mud snail, Potamopyrgus antipodarum, isolated from the United States, (one invasive and one not yet invasive) with those of two species of native snails that are sympatric with the invader, Fossaria bulimoides group and Physella gyrina group. We placed juvenile snails in environments with high and low conductivity (300 and 800 mS) in one experiment, and raised them at two different temperatures (16°C and 22°C) in a second experiment. Growth rate and mortality were measured over the course of 8 weeks. Mortality rates were higher in the native snails compared to P. antipodarum across all treatments, and variation in conductivity influenced mortality. In both experiments, reaction norms did not vary significantly between species. There was little evidence that the success of the introduced species is a result of greater phenotypic plasticity to these variables compared to the sympatric native species.
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Krist AC, Kay AD, Larkin K, Neiman M. Response to phosphorus limitation varies among lake populations of the freshwater snail Potamopyrgus antipodarum. PLoS One 2014; 9:e85845. [PMID: 24454936 PMCID: PMC3894190 DOI: 10.1371/journal.pone.0085845] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 12/02/2013] [Indexed: 11/21/2022] Open
Abstract
Local adaptation – typically recognized as higher values of fitness-related traits for native vs. non-native individuals when measured in the native environment - is common in natural populations because of pervasive spatial variation in the intensity and type of natural selection. Although local adaptation has been primarily studied in the context of biotic interactions, widespread variation in abiotic characteristics of environments suggests that local adaptation in response to abiotic factors should also be common. Potamopyrgus antipodarum, a freshwater New Zealand snail that is an important model system for invasion biology and the maintenance of sexual reproduction, exhibits local adaptation to parasites and rate of water flow. As an initial step to determining whether P. antipodarum are also locally adapted to phosphorus availability, we examined whether populations differ in their responses to phosphorus limitation. We found that field-collected juvenile P. antipodarum grew at a lower rate and reached an important size threshold more slowly when fed a relatively low vs. a relatively high- phosphorus diet. We also detected significant across-population variation in individual growth rate. A marginally significant population-by-dietary phosphorus interaction along with a two-fold difference across populations in the extent of suppression of growth by low phosphorus suggests that populations of P. antipodarum may differ in their response to phosphorus limitation. Local adaptation may explain this variation, with the implication that snails from lakes with relatively low phosphorus availability should be less severely affected by phosphorus limitation than snails from lakes with higher phosphorus availability.
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Affiliation(s)
- Amy C. Krist
- Department of Zoology and Physiology and Program in Ecology, University of Wyoming, Laramie, Wyoming, United States of America
- * E-mail:
| | - Adam D. Kay
- Department of Biology, University of St. Thomas, St. Paul, Minnesota, United States of America
| | - Katelyn Larkin
- Department of Biology, University of Iowa, Iowa City, Iowa, United States of America
| | - Maurine Neiman
- Department of Biology, University of Iowa, Iowa City, Iowa, United States of America
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