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Santos GD, Rutkoski CF, Folador A, Skovronski VJ, Müller C, Pompermaier A, Hartmann PA, Hartmann M. 2,4-D-based herbicide underdoses cause mortality, malformations, and nuclear abnormalities in Physalaemus cuvieri tadpoles. Comp Biochem Physiol C Toxicol Pharmacol 2024; 277:109840. [PMID: 38218566 DOI: 10.1016/j.cbpc.2024.109840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 01/02/2024] [Accepted: 01/08/2024] [Indexed: 01/15/2024]
Abstract
Amphibians are considered bioindicators of the environment due to their high sensitivity and involvement in terrestrial and aquatic ecosystems. In the last two decades, 2,4-D has been one of the most widely used herbicides in Brazil and around the world, as its use has been authorized for genetically modified crops and therefore has been detected in surface and groundwater. Against this background, the aim of this work was to investigate the effects of environmentally relevant concentrations of 2,4-D-based herbicides on survival, malformations, swimming activity, presence of micronuclei and erythrocyte nuclear abnormalities in Physalaemus cuvieri tadpoles. The amphibians were exposed to six concentrations of 2,4-D-based herbicides: 0.0, 4.0, 30.0, 52.5, 75.0, and 100 μg L-1, for 168 h. At concentrations higher than 52.5 μg L-1, significantly increased mortality was observed from 24 h after exposure. At the highest concentration (100 μg L-1), the occurrence of mouth and intestinal malformations was also observed. The occurrence of erythrocyte nuclear abnormalities at concentrations of 30.0, 52.5, 75.0 and 100 μg L-1 and the presence of micronuclei at concentrations of 52.5, 75.0, and 100 μg L-1 were also recorded. These effects of 2,4-D in P. cuvieri indicate that the ecological risk observed at concentrations above 10.35 μg L-1 2,4-D may represent a threat to the health and survival of this species, i.e., exposure to 2,4-D at concentrations already detected in surface waters in the species' range is toxic to P. cuvieri.
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Affiliation(s)
- Gilcinéia Dos Santos
- Ecology and Conservation Laboratory, Federal University of Fronteira Sul, Erechim Campus, RS 135-Km 72, no 200, 99.700-000 Erechim, RS, Brazil
| | - Camila Fátima Rutkoski
- Ecology and Conservation Laboratory, Federal University of Fronteira Sul, Erechim Campus, RS 135-Km 72, no 200, 99.700-000 Erechim, RS, Brazil
| | - Alexandre Folador
- Ecology and Conservation Laboratory, Federal University of Fronteira Sul, Erechim Campus, RS 135-Km 72, no 200, 99.700-000 Erechim, RS, Brazil
| | - Vrandrieli Jucieli Skovronski
- Ecology and Conservation Laboratory, Federal University of Fronteira Sul, Erechim Campus, RS 135-Km 72, no 200, 99.700-000 Erechim, RS, Brazil
| | - Caroline Müller
- Ecology and Conservation Laboratory, Federal University of Fronteira Sul, Erechim Campus, RS 135-Km 72, no 200, 99.700-000 Erechim, RS, Brazil
| | - Aline Pompermaier
- Ecology and Conservation Laboratory, Federal University of Fronteira Sul, Erechim Campus, RS 135-Km 72, no 200, 99.700-000 Erechim, RS, Brazil
| | - Paulo Afonso Hartmann
- Ecology and Conservation Laboratory, Federal University of Fronteira Sul, Erechim Campus, RS 135-Km 72, no 200, 99.700-000 Erechim, RS, Brazil
| | - Marilia Hartmann
- Ecology and Conservation Laboratory, Federal University of Fronteira Sul, Erechim Campus, RS 135-Km 72, no 200, 99.700-000 Erechim, RS, Brazil.
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Babini MS, Bionda CDL, Martino AL, Peltzer PM. Impacts of horticultural environments on Rhinella arenarum (Anura, Bufonidae) populations: exploring genocytotoxic damage and demographic life history traits. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:21235-21248. [PMID: 38388975 DOI: 10.1007/s11356-024-32471-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 02/09/2024] [Indexed: 02/24/2024]
Abstract
Horticulture poses a significant ecological risk, as agrochemicals are applied more frequently and in larger quantities per unit of production compared to extensive crop fields. The native amphibian Rhinella arenarum serves as a reliable bioindicator of environmental health. This study aimed to assess genocytotoxic damage and demographic life history traits of R. arenarum inhabiting horticultural environments. Sampling was conducted in suburban sites in central Argentina: H1 and H2 (sites associated with horticultural activity) and a reference site, RS. Environmental parameters were recorded, and the frequency of micronuclei (Mn), nuclear abnormalities (ENA), and indicators of cytotoxic damage were determined in tadpoles and adults. Demographic variables (age at maturity, longevity, potential reproductive lifespan, size at maturity, modal lifespan) were calculated. The highest nitrate and phosphate values, along with low dissolved oxygen values, were recorded at sites H1 and H2. Organisms inhabiting horticultural environments exhibited higher frequencies of Mn and ENA, surpassing those recorded in previous studies on tadpoles from sites with extensive crop production. Size at maturity and age at maturity of females, as well as size at maturity, longevity, mean age, and mean adult SVL of males, were lower in horticultural sites. The results support the hypothesis that anuran populations inhabiting horticultural environments demonstrate a diminished health status attributed to subpar environmental quality. Monitoring endpoints at different biological levels provides information on the ecotoxicological risk for amphibians and human populations inhabiting nearby areas.
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Affiliation(s)
- María Selene Babini
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
- Departamento de Ciencias Naturales, Facultad de Ciencias Exactas, Físico-Químicas y Naturales (FCEFQyN), Universidad Nacional de Río Cuarto (UNRC), Río Cuarto, Argentina.
| | - Clarisa de Lourdes Bionda
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Departamento de Ciencias Naturales, Facultad de Ciencias Exactas, Físico-Químicas y Naturales (FCEFQyN), Universidad Nacional de Río Cuarto (UNRC), Río Cuarto, Argentina
| | - Adolfo Ludovico Martino
- Departamento de Ciencias Naturales, Facultad de Ciencias Exactas, Físico-Químicas y Naturales (FCEFQyN), Universidad Nacional de Río Cuarto (UNRC), Río Cuarto, Argentina
| | - Paola Mariela Peltzer
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Laboratorio de Ecotoxicología, Facultad de Bioquímica y Ciencias Biológicas (FBCB), Universidad Nacional del Litoral (UNL), Santa Fe, Argentina
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Macagnan N, Rutkoski CF, Folador A, Skovronski VJ, Müller C, Hartmann PA, Hartmann M. Mortality and toxicity of a commercial formulation of cypermethrin in Physalaemus gracilis tadpoles. Sci Rep 2023; 13:17826. [PMID: 37857789 PMCID: PMC10587170 DOI: 10.1038/s41598-023-45090-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 10/16/2023] [Indexed: 10/21/2023] Open
Abstract
This study evaluated the lethal, sublethal, and toxic of a commercial formulation of cypermethrin in the anuran species Physalaemus gracilis. In the acute test, concentrations of 100-800 μg L-1 were tested over 96 h. In the chronic test, cypermethrin concentrations recorded in nature (1, 3, 6, and 20 μg L-1) were tested for mortality and then used for the micronucleus test and erythrocyte nuclear abnormalities over a 7-days period. The LC50 determined for P. gracilis for the commercial cypermethrin formulation was 273.41 μg L-1. In the chronic test, a mortality of more than 50% was observed at the highest concentration (20 μg L-1), as it caused half of the tadpoles studied to die. The micronucleus test showed significant results at concentrations of 6 and 20 μg L-1 and recorded the presence of several nuclear abnormalities, indicating the genotoxic potential of the commercial cypermethrin formulation for P. gracilis. Cypermethrin presented a high risk to the species, indicating that it has the potential to cause several problems in the short and long term and to affect the dynamics of this ecosystem. Therefore, it can be concluded that the commercial formulation of cypermethrin had toxicological effects on P. gracilis.
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Affiliation(s)
- Natani Macagnan
- Ecology and Conservation Laboratory, Federal University of Fronteira Sul, Erechim, RS, 99.700-000, Brazil
| | - Camila Fatima Rutkoski
- Ecology and Conservation Laboratory, Federal University of Fronteira Sul, Erechim, RS, 99.700-000, Brazil
| | - Alexandre Folador
- Ecology and Conservation Laboratory, Federal University of Fronteira Sul, Erechim, RS, 99.700-000, Brazil
| | | | - Caroline Müller
- Ecology and Conservation Laboratory, Federal University of Fronteira Sul, Erechim, RS, 99.700-000, Brazil
| | - Paulo Afonso Hartmann
- Ecology and Conservation Laboratory, Federal University of Fronteira Sul, Erechim, RS, 99.700-000, Brazil
| | - Marilia Hartmann
- Ecology and Conservation Laboratory, Federal University of Fronteira Sul, Erechim, RS, 99.700-000, Brazil.
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Llopart JP, Alvarez-Blanco P, Moreira-Demarco L, Bang A, Angulo E, Maneyro R. Testing the Novel Weapons Hypothesis of the Argentine Ant Venom on Amphibians. Toxins (Basel) 2023; 15:toxins15040235. [PMID: 37104173 PMCID: PMC10144969 DOI: 10.3390/toxins15040235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/08/2023] [Accepted: 03/16/2023] [Indexed: 04/28/2023] Open
Abstract
The globally invasive Argentine ant (Linepithema humile) possesses a venom lethal to some amphibian species in the invaded range. To test the novel weapons hypothesis (NWH), the effects of the toxin on the cohabiting amphibian species in the ant's native range need to be investigated. The invader should benefit from the novel chemical in the invaded range, because the species are not adapted, but the venom should not be effective in the native range. We explore the venom effects on juveniles of three amphibian species with different degrees of myrmecophagy inhabiting the ant's native range: Rhinella arenarum, Odontophrynus americanus, and Boana pulchella. We exposed the amphibians to the ant venom, determined the toxic dose, and evaluated the short- (10 min to 24 h) and medium-term (14 days) effects. All amphibian species were affected by the venom independently of myrmecophagy. In addition to amphibian sensitivity, we discuss how the differential Argentine ant abundance and density in the two ranges could be the key to the susceptibility of amphibians to the venom, resulting in the possibility of NWH. Our results confirm the potential magnitude of the impact of the Argentine ant in successfully invaded areas for the conservation of already threatened amphibians.
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Affiliation(s)
- Juan Pablo Llopart
- Laboratorio de Sistemática e Historia Natural de Vertebrados, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay
| | | | - Lucía Moreira-Demarco
- Laboratorio de Sistemática e Historia Natural de Vertebrados, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay
| | - Alok Bang
- School of Arts and Sciences, Azim Premji University, Bangalore 562125, India
- Society for Ecology Evolution and Development, Wardha 442001, India
| | - Elena Angulo
- Estación Biológica de Doñana (CSIC), Av. Américo Vespucio 26, 41092 Sevilla, Spain
| | - Raúl Maneyro
- Laboratorio de Sistemática e Historia Natural de Vertebrados, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay
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López González E, Odetti L, Latorre M, Ávila O, Contini L, Siroski P, Poletta G. A comprehensive approach using multiple biomarkers to detect damage induced by pesticides in broad-snouted caiman ( Caiman latirostris) under ex-situ conditions. Heliyon 2022; 8:e08667. [PMID: 35028453 PMCID: PMC8741443 DOI: 10.1016/j.heliyon.2021.e08667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/06/2021] [Accepted: 12/21/2021] [Indexed: 01/17/2023] Open
Abstract
Caiman latirostris is one of the two species of the order Crocodylia that inhabit Argentina and is considered a species of vital ecological and economic importance in the north-east of Argentina. In this region, pesticides are the most common contaminants in natural environments and wild caiman populations are subject to this contamination constantly. The aim of this study was to evaluate the effects the main pesticides used in the region: glyphosate (GLY), cypermethrin (CYP) and chlorpyrifos (CPF) -based formulations, as well as the mixture of them, on C. latirostris juveniles under semi-controlled condition of exposure (ex-situ) during 75 days. One hundred yearling caimans (10-month-old) were equally distributed into five experimental groups (20 animals per group): a negative control (NC -tap water), GLY 2% (Roundup® Full II formulation -RU), CYP 0.12% (Atanor® formulation), CPF 0.8% (Lorsban® formulation), and a mixture of the three pesticides (Mx3: GLY 2% + CYP 0.12% + CPF 0.8%). We applied early warning biomarkers to detect damage induced by these chemicals in peripheral blood: activity of the antioxidant enzymes catalase (CAT) and superoxide dismutase (SOD), analysis of lipid peroxidation (LPO) by the thiobarbituric acid reactive substances (TBARS), DNA damage and specific base oxidation through the standard and modified comet assay (CA), chromosome damage by micronucleus (MN) test and other nuclear abnormalities (NAs), hematological and growth parameters. Results showed a statistically significant increase in MN and NAs frequency, DNA damage, with an important contribution of base oxidation for all exposed groups compared to the NC. Total white blood cells count (TWBCC), and growth parameters showed effects mainly at the Mx3. The principal component analysis (PCA) demonstrated more sensitivity for biomarkers associated to genetic damage, including base oxidation to DNA than LPO, antioxidant enzyme modulation, immunotoxicity or growth parameters, to detect pesticides effects, applied under conditions similar to that found in natural environments.
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Affiliation(s)
- E.C. López González
- Proyecto Yacaré, Laboratorio de Zoología Aplicada: Anexo Vertebrados (FHUC-UNL/Gob. Sta. Fe/MAyCC), Av. Aristóbulo del Valle 8700 (3000) Santa Fe, Argentina
- Laboratorio de Ecología Molecular Aplicada (LEMA-Instituto de Ciencias Veterinarias del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas: ICiVet Litoral - CONICET/UNL), Av. Aristóbulo del Valle 8700 (3000) Santa Fe, Argentina
| | - L.M. Odetti
- Cátedra de Toxicología Farmacología y Bioquímica Legal, FBCB-UNL, CONICET, Ciudad Universitaria, Paraje El Pozo S/N (3000) Santa Fe, Argentina
| | - M.A. Latorre
- Proyecto Yacaré, Laboratorio de Zoología Aplicada: Anexo Vertebrados (FHUC-UNL/Gob. Sta. Fe/MAyCC), Av. Aristóbulo del Valle 8700 (3000) Santa Fe, Argentina
| | - O.B. Ávila
- Departamento de Matemática, FBCB-UNL, Ciudad Universitaria, Paraje El Pozo S/N (3000) Santa Fe, Argentina
| | - L.E. Contini
- Departamento de Matemática, FBCB-UNL, Ciudad Universitaria, Paraje El Pozo S/N (3000) Santa Fe, Argentina
| | - P.A. Siroski
- Proyecto Yacaré, Laboratorio de Zoología Aplicada: Anexo Vertebrados (FHUC-UNL/Gob. Sta. Fe/MAyCC), Av. Aristóbulo del Valle 8700 (3000) Santa Fe, Argentina
- Laboratorio de Ecología Molecular Aplicada (LEMA-Instituto de Ciencias Veterinarias del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas: ICiVet Litoral - CONICET/UNL), Av. Aristóbulo del Valle 8700 (3000) Santa Fe, Argentina
| | - G.L. Poletta
- Proyecto Yacaré, Laboratorio de Zoología Aplicada: Anexo Vertebrados (FHUC-UNL/Gob. Sta. Fe/MAyCC), Av. Aristóbulo del Valle 8700 (3000) Santa Fe, Argentina
- Cátedra de Toxicología Farmacología y Bioquímica Legal, FBCB-UNL, CONICET, Ciudad Universitaria, Paraje El Pozo S/N (3000) Santa Fe, Argentina
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Assis RA, Rezende WR, Dos Santos CGA, Benvindo-Souza M, Amorim NPL, Borges RE, Franco-Belussi L, De Oliveira C, de Souza Santos LR. Habitat differences affect the nuclear morphology of the erythrocytes and the hepatic melanin in Leptodactylus fuscus (Anura) in the Brazilian Cerrado savanna. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:60741-60752. [PMID: 34165732 DOI: 10.1007/s11356-021-14974-4] [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: 01/27/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
The sensitivity of anuran to the effects of habitat destruction and contamination has led to a preoccupying global decline in their populations. Morphological biomarkers such as micronuclei and other erythrocyte nuclear abnormalities (ENAs), as well as the occurrence of hepatic melanin, can be used to evaluate the effects of habitat impacts. In the present study, these two parameters were combined for the in situ assessment of the effects of soybean cultivation on the grassfrog, Leptodactylus fuscus. Specimens were also collected from a protected area to provide a reference site (non-agricultural environment). The frequency of some of the nuclear abnormalities in the animals from the soybean plantation was much higher than that recorded at the reference site, in particular micronuclei, which were 3.6 times more frequent in the plantation, lobulated nuclei (3.4 times more frequent), and reniform nuclei, which were four times more common than at the reference site. The combined analysis of all the ENAs together also revealed a frequency approximately 1.4 times higher in the animals from the soybean plantation, in comparison with the protected area. Smaller areas of hepatic melanin were observed in the specimens from the soybean plantation. These results provide further evidence of the sensitivity of anurans to habitat impacts and indicate that animals found in soybean plantations are susceptible to systematic alterations of their cells.
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Affiliation(s)
- Rhayane Alves Assis
- Laboratory of Ecotoxicology and Animal Systematics (EcotoxSA), Goiano Federal Institute, Rio Verde, Goiás, CEP 75901-970, Brazil.
- Department of Biology, Paulista State University "Júlio de Mesquita Filho", São José do Rio Preto, São Paulo, CEP 15054-000, Brazil.
| | - Wadson Rodrigues Rezende
- Department of Biology, Paulista State University "Júlio de Mesquita Filho", São José do Rio Preto, São Paulo, CEP 15054-000, Brazil
| | - Cirley Gomes Araújo Dos Santos
- Laboratory of Ecotoxicology and Animal Systematics (EcotoxSA), Goiano Federal Institute, Rio Verde, Goiás, CEP 75901-970, Brazil
| | - Marcelino Benvindo-Souza
- Laboratory of Ecotoxicology and Animal Systematics (EcotoxSA), Goiano Federal Institute, Rio Verde, Goiás, CEP 75901-970, Brazil
- Mutagenesis Laboratory, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Goiás, CEP 74690-900, Brazil
| | - Nathan Pereira Lima Amorim
- Laboratory of Ecotoxicology and Animal Systematics (EcotoxSA), Goiano Federal Institute, Rio Verde, Goiás, CEP 75901-970, Brazil
| | | | - Lilian Franco-Belussi
- Department of Biology, Paulista State University "Júlio de Mesquita Filho", São José do Rio Preto, São Paulo, CEP 15054-000, Brazil
- Institute of Biosciences, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, CEP 79002-970, Brazil
| | - Classius De Oliveira
- Department of Biology, Paulista State University "Júlio de Mesquita Filho", São José do Rio Preto, São Paulo, CEP 15054-000, Brazil
| | - Lia Raquel de Souza Santos
- Laboratory of Ecotoxicology and Animal Systematics (EcotoxSA), Goiano Federal Institute, Rio Verde, Goiás, CEP 75901-970, Brazil.
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Novikova PY, Brennan IG, Booker W, Mahony M, Doughty P, Lemmon AR, Moriarty Lemmon E, Roberts JD, Yant L, Van de Peer Y, Keogh JS, Donnellan SC. Polyploidy breaks speciation barriers in Australian burrowing frogs Neobatrachus. PLoS Genet 2020; 16:e1008769. [PMID: 32392206 PMCID: PMC7259803 DOI: 10.1371/journal.pgen.1008769] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 05/29/2020] [Accepted: 04/08/2020] [Indexed: 01/13/2023] Open
Abstract
Polyploidy has played an important role in evolution across the tree of life but it is still unclear how polyploid lineages may persist after their initial formation. While both common and well-studied in plants, polyploidy is rare in animals and generally less understood. The Australian burrowing frog genus Neobatrachus is comprised of six diploid and three polyploid species and offers a powerful animal polyploid model system. We generated exome-capture sequence data from 87 individuals representing all nine species of Neobatrachus to investigate species-level relationships, the origin and inheritance mode of polyploid species, and the population genomic effects of polyploidy on genus-wide demography. We describe rapid speciation of diploid Neobatrachus species and show that the three independently originated polyploid species have tetrasomic or mixed inheritance. We document higher genetic diversity in tetraploids, resulting from widespread gene flow between the tetraploids, asymmetric inter-ploidy gene flow directed from sympatric diploids to tetraploids, and isolation of diploid species from each other. We also constructed models of ecologically suitable areas for each species to investigate the impact of climate on differing ploidy levels. These models suggest substantial change in suitable areas compared to past climate, which correspond to population genomic estimates of demographic histories. We propose that Neobatrachus diploids may be suffering the early genomic impacts of climate-induced habitat loss, while tetraploids appear to be avoiding this fate, possibly due to widespread gene flow. Finally, we demonstrate that Neobatrachus is an attractive model to study the effects of ploidy on the evolution of adaptation in animals.
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Affiliation(s)
- Polina Yu. Novikova
- VIB-UGent Center for Plant Systems Biology, Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
| | - Ian G. Brennan
- Division of Ecology & Evolution, Research School of Biology, The Australian National University, Canberra, Australia
| | - William Booker
- Department of Biological Science, Florida State University, Tallahassee, Florida, United States of America
| | - Michael Mahony
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, Australia
| | - Paul Doughty
- Western Australian Museum, Welshpool, Perth, Australia
| | - Alan R. Lemmon
- Department of Scientific Computing, Florida State University, Tallahassee, Florida, United States of America
| | - Emily Moriarty Lemmon
- Department of Biological Science, Florida State University, Tallahassee, Florida, United States of America
| | - J. Dale Roberts
- School of Biological Sciences, and, Centre for Evolutionary Biology, University of Western Australia, Albany, Western Australia, Australia
| | - Levi Yant
- School of Life Sciences and Future Food Beacon, University of Nottingham, Nottingham, United Kingdom
| | - Yves Van de Peer
- VIB-UGent Center for Plant Systems Biology, Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- Bioinformatics Institute Ghent, Ghent University, Ghent, Belgium
- Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa
| | - J. Scott Keogh
- Division of Ecology & Evolution, Research School of Biology, The Australian National University, Canberra, Australia
| | - Stephen C. Donnellan
- South Australian Museum, North Terrace, Adelaide, Australia
- School of Biological Sciences, University of Adelaide, North Terrace, Adelaide, Australia
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Gonçalves MW, de Campos CBM, Godoy FR, Gambale PG, Nunes HF, Nomura F, Bastos RP, da Cruz AD, de Melo E Silva D. Assessing Genotoxicity and Mutagenicity of Three Common Amphibian Species Inhabiting Agroecosystem Environment. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2019; 77:409-420. [PMID: 31236619 DOI: 10.1007/s00244-019-00647-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 06/14/2019] [Indexed: 05/24/2023]
Abstract
Amphibians are constantly exposed to pollutants and the stress of agricultural activities. We selected three anuran amphibian species Dendropsophus minutus, Boana albopunctata, and Physalaemus cuvieri, totaling 309 individuals. We collected tadpoles in 15 permanent ponds: 5 soybean crops, 3 corn crops, and 7 nonagricultural lands. Our study provides the first comparative data on the genotoxicity and mutagenicity of three common amphibian anurans. Dendropsophus minutus was the most vulnerable species compared with B. albopunctata and P. cuvieri for comet assay and micronuclei test. However, the more significant amount of DNA damage seen in D. minutus does not mean that their populations are threatened once such species adapt well to anthropogenic disturbances. Despite, P. cuvieri was less sensitive than the other two species; the DNA damage was significantly higher in soybean crops. Physalaemus cuvieri is a leptodactylidae species that deposit their eggs in foam nests, which are essential to protect eggs from dehydration. Moreover, the foam reduces the contact of eggs with water; thus, P. cuvieri eggs could be less exposed to contaminants present in pounds, compared with D. minutus and B. albopunctata, which deposit their eggs directly in the water. Therefore, this study was sufficiently sensitive to detect genotoxic and mutagenic effects in tadpoles exposed to agroecosystems. We strongly suggest D. minutus in future biomonitoring studies that involve the comparison of anthropized versus not anthropized environments. Overall, we recommend the comet assay and micronucleus test as effective methods for the detection of genotoxic damage in amphibian anurans to the environmental disturbance, especially in agricultural sites.
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Affiliation(s)
- Macks Wendhell Gonçalves
- Campus II, Itatiaia, Laboratório de Mutagênese, Programa de Pós-Graduação em Genética e Biologia Molecular, Departamento de Genética, Instituto de Ciências Biológicas 1, Universidade Federal de Goiás, Goiânia, Goiás, Cep: 74001-970, Brazil
- Departamento de Biologia, Núcleo de Pesquisas Replicon, Pontifícia Universidade Católica de Goiás, Goiânia, Goiás, Brazil
| | - Calebe Bertolino Marins de Campos
- Campus II, Itatiaia, Laboratório de Mutagênese, Programa de Pós-Graduação em Genética e Biologia Molecular, Departamento de Genética, Instituto de Ciências Biológicas 1, Universidade Federal de Goiás, Goiânia, Goiás, Cep: 74001-970, Brazil
- Departamento de Biologia, Núcleo de Pesquisas Replicon, Pontifícia Universidade Católica de Goiás, Goiânia, Goiás, Brazil
| | - Fernanda Ribeiro Godoy
- Departamento de Biologia, Núcleo de Pesquisas Replicon, Pontifícia Universidade Católica de Goiás, Goiânia, Goiás, Brazil
| | - Priscilla Guedes Gambale
- Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Hugo Freire Nunes
- Campus II, Itatiaia, Laboratório de Mutagênese, Programa de Pós-Graduação em Genética e Biologia Molecular, Departamento de Genética, Instituto de Ciências Biológicas 1, Universidade Federal de Goiás, Goiânia, Goiás, Cep: 74001-970, Brazil
| | - Fausto Nomura
- Programa de Pós-Graduação em Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
- Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Rogério Pereira Bastos
- Programa de Pós-Graduação em Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
- Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
- Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Aparecido Divino da Cruz
- Departamento de Biologia, Núcleo de Pesquisas Replicon, Pontifícia Universidade Católica de Goiás, Goiânia, Goiás, Brazil
| | - Daniela de Melo E Silva
- Campus II, Itatiaia, Laboratório de Mutagênese, Programa de Pós-Graduação em Genética e Biologia Molecular, Departamento de Genética, Instituto de Ciências Biológicas 1, Universidade Federal de Goiás, Goiânia, Goiás, Cep: 74001-970, Brazil.
- Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
- Departamento de Biologia, Núcleo de Pesquisas Replicon, Pontifícia Universidade Católica de Goiás, Goiânia, Goiás, Brazil.
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9
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Daam MA, Moutinho MF, Espíndola ELG, Schiesari L. Lethal toxicity of the herbicides acetochlor, ametryn, glyphosate and metribuzin to tropical frog larvae. ECOTOXICOLOGY (LONDON, ENGLAND) 2019; 28:707-715. [PMID: 31250286 DOI: 10.1007/s10646-019-02067-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/04/2019] [Indexed: 06/09/2023]
Abstract
Despite the high amphibian biodiversity and increasing pesticide use in tropical countries, knowledge on the sensitivity of tropical amphibians to pesticides remains limited. The aim of this study was to evaluate the acute toxicity of the active ingredients of four of the main herbicides used in Brazilian sugarcane production to tadpoles of two tropical frog species: Physalaemus cuvieri and Hypsiboas pardalis. The calculated 96 h-LC50 (median lethal concentration; in mg a.s./L) values for P. cuvieri and H. pardalis were 4.4 and 7.8 (acetochlor); 15 and <10 (ametryn); 115 and 106 (glyphosate); and 85 and 68 (metribuzin), respectively. These toxicity values demonstrated little interspecies variation and the toxicity of the herbicides appeared to be at least partly related with the respective octanol-water coefficient. Published acute toxicity data of fish and amphibians for herbicides were also compiled from the US-EPA ECOTOX database. These data indicated little difference in herbicide sensitivity between tropical amphibians and both non-tropical amphibians and fish. These findings indicate that temperate (fish and amphibian) herbicide toxicity data are also protective for tropical amphibians. Constraints in such extrapolations and indications for future research are discussed.
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Affiliation(s)
- Michiel A Daam
- CENSE, Department of Environmental Sciences and Engineering, Faculty of Sciences and Technology, New University of Lisbon, Quinta da Torre, 2829-516, Caparica, Portugal
| | - Mariana F Moutinho
- Programa de Pós-Graduação em Ecologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Evaldo L G Espíndola
- NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, 13.560-970, Brazil
| | - Luis Schiesari
- Escola de Artes, Ciências e Humanidades, Universidade de São Paulo, São Paulo, Brazil.
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