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Chang J, Pan Y, Liu W, Xie Y, Hao W, Xu P, Wang Y. Acute temperature adaptation mechanisms in the native reptile species Eremias argus. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 818:151773. [PMID: 34808164 DOI: 10.1016/j.scitotenv.2021.151773] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/13/2021] [Accepted: 11/14/2021] [Indexed: 06/13/2023]
Abstract
Reptiles are sensitive to temperature changes as ectotherm animals. The climate warming may pose more serious threat to reptiles. Although the behavior effect and reproduction biology have been well studied, little information is available about the adaptation mechanisms of reptiles to temperature stress. In this study, the native Chinese species, Eremias argus were incubated at 15 (cold stress), 25 (control group) and 35 °C (thermal stress) for 24 h. The transcriptome and metabolome technology were applied to investigate the molecular regulation mechanisms of lizards to acute temperature changes. The CIRBP and HSPA8 were hub genes in response to temperature adaptation. The increased expression of PER gene in lizard circadian rhythm is associated with tyrosine metabolism after cold or thermal stress. The poly-unsaturated fatty acids in female lizard liver were significantly increased with up-regulation of FASN and ACACA genes after thermal stress, which proved the disruption of fatty acid biosynthesis pathway in corporation with the altered body weight. The cortisol and testosterone were important steroid hormones in response to temperature changes especially in male lizard liver. The increased CIRBP gene expression in lizard gonads suppressed the KDM6B gene, which regulates the testis development and may induce sex reversal in male lizard after thermal stress. The adaptation responses of lizards to temperature stress may threaten the health status of wild population.
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Affiliation(s)
- Jing Chang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China.
| | - Yifan Pan
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China; University of Chinese Academy of Sciences, Yuquan RD 19 a, Beijing 100049, China
| | - Wentao Liu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China; University of Chinese Academy of Sciences, Yuquan RD 19 a, Beijing 100049, China
| | - Yun Xie
- Institute of Food Safety, Chinese Academy of Inspection and Quarantine, Beijing 100176, China
| | - Weiyu Hao
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
| | - Peng Xu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
| | - Yinghuan Wang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
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Sanger TJ, Harding L, Kyrkos J, Turnquist AJ, Epperlein L, Nunez SA, Lachance D, Dhindsa S, Stroud JT, Diaz RE, Czesny B. Environmental Thermal Stress Induces Neuronal Cell Death and Developmental Malformations in Reptiles. Integr Org Biol 2021; 3:obab033. [PMID: 34877473 PMCID: PMC8643577 DOI: 10.1093/iob/obab033] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 09/25/2021] [Accepted: 11/12/2021] [Indexed: 12/19/2022] Open
Abstract
Every stage of organismal life history is being challenged by global warming. Many species are already experiencing temperatures approaching their physiological limits; this is particularly true for ectothermic species, such as lizards. Embryos are markedly sensitive to thermal insult. Here, we demonstrate that temperatures currently experienced in natural nesting areas can modify gene expression levels and induce neural and craniofacial malformations in embryos of the lizard Anolis sagrei. Developmental abnormalities ranged from minor changes in facial structure to significant disruption of anterior face and forebrain. The first several days of postoviposition development are particularly sensitive to this thermal insult. These results raise new concern over the viability of ectothermic species under contemporary climate change. Herein, we propose and test a novel developmental hypothesis that describes the cellular and developmental origins of those malformations: cell death in the developing forebrain and abnormal facial induction due to disrupted Hedgehog signaling. Based on similarities in the embryonic response to thermal stress among distantly related species, we propose that this developmental hypothesis represents a common embryonic response to thermal insult among amniote embryos. Our results emphasize the importance of adopting a broad, multidisciplinary approach that includes both lab and field perspectives when trying to understand the future impacts of anthropogenic change on animal development.
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Affiliation(s)
- Thomas J Sanger
- Department of Biology, Loyola University Chicago, 1050 Sheridan Rd., Chicago, IL 60660, USA
| | - Laura Harding
- Department of Biology, Loyola University Chicago, 1050 Sheridan Rd., Chicago, IL 60660, USA
| | - Judith Kyrkos
- Department of Biology, Loyola University Chicago, 1050 Sheridan Rd., Chicago, IL 60660, USA
| | - Alexandrea J Turnquist
- Department of Biology, Loyola University Chicago, 1050 Sheridan Rd., Chicago, IL 60660, USA
| | - Lilian Epperlein
- Department of Biology, Loyola University Chicago, 1050 Sheridan Rd., Chicago, IL 60660, USA
| | - Sylvia A Nunez
- Department of Biology, Loyola University Chicago, 1050 Sheridan Rd., Chicago, IL 60660, USA
| | - Dryden Lachance
- Department of Biology, Loyola University Chicago, 1050 Sheridan Rd., Chicago, IL 60660, USA
| | - Seerat Dhindsa
- Department of Biology, Loyola University Chicago, 1050 Sheridan Rd., Chicago, IL 60660, USA
| | - James T Stroud
- Department of Biology, Washington University in St. Louis, Campus Box 1137. One Brookings Drive St. Louis, MO 63130-4899, USA
| | - Raul E Diaz
- Department of Biological Sciences, California State University, Los Angeles, 5151 State University Dr., Los Angeles, CA 90032, USA
| | - Beata Czesny
- Department of Biology, Loyola University Chicago, 1050 Sheridan Rd., Chicago, IL 60660, USA
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3
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Sanger TJ. Integrative developmental biology in the age of anthropogenic change. Evol Dev 2021; 23:320-332. [PMID: 33848387 DOI: 10.1111/ede.12377] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 03/02/2021] [Accepted: 03/19/2021] [Indexed: 12/15/2022]
Abstract
Humans are changing and challenging nature in many ways. Conservation Biology seeks to limit human impacts on nature and preserve biological diversity. Traditionally, Developmental Biology and Conservation Biology have had nonoverlapping objectives, operating in distinct spheres of biological science. However, this chasm can and should be filled to help combat the emerging challenges of the 21st century. The means by which to accomplish this goal were already established within the conceptual framework of evo- and eco-devo and can be further expanded to address the ways that anthropogenic disturbance affect embryonic development. Herein, I describe ways that these approaches can be used to advance the study of reptilian embryos. More specifically, I explore the ways that a developmental perspective can advance ongoing studies of embryonic physiology in the context of global warming and chemical pollution, both of which are known stressors of reptilian embryos. I emphasize ways that these developmental perspectives can inform conservation biologists trying to develop management practices that will address the complexity of challenges facing reptilian embryos.
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Affiliation(s)
- Thomas J Sanger
- Department of Biology, Loyola University Chicago, Chicago, Illinois, USA
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Telemeco RS, Simpson DY, Tylan C, Langkilde T, Schwartz TS. Contrasting Responses of Lizards to Divergent Ecological Stressors Across Biological Levels of Organization. Integr Comp Biol 2019; 59:292-305. [PMID: 31127305 DOI: 10.1093/icb/icz071] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
It is frequently hypothesized that animals employ a generalized "stress response," largely mediated by glucocorticoid (GC) hormones, such as corticosterone, to combat challenging environmental conditions. Under this hypothesis, diverse stressors are predicted to have concordant effects across biological levels of an organism. We tested the generalized stress response hypothesis in two complementary experiments with juvenile and adult male Eastern fence lizards (Sceloporus undulatus). In both experiments, animals were exposed to diverse, ecologically-relevant, acute stressors (high temperature or red imported fire ants, Solenopsis invicta) and we examined their responses at three biological levels: behavioral; physiological (endocrine [plasma corticosterone and blood glucose concentrations] and innate immunity [complement and natural antibodies]); and cellular responses (gene expression of a panel of five heat-shock proteins in blood and liver) at 30 or 90 min post stress initiation. In both experiments, we observed large differences in the cellular response to the two stressors, which contrasts the similar behavioral and endocrine responses. In the adult experiment for which we had innate immune data, the stressors affected immune function independently, and they were correlated with CORT in opposing directions. Taken together, these results challenge the concept of a generalized stress response. Rather, the stress response was context specific, especially at the cellular level. Such context-specificity might explain why attempts to link GC hormones with life history and fitness have proved difficult. Our results emphasize the need for indicators at multiple biological levels and whole-organism examinations of stress.
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Affiliation(s)
- Rory S Telemeco
- Department of Biology, California State University, Fresno, CA 93740, USA.,Department of Biological Sciences, Auburn University, Auburn, AL 36849, USA
| | - Dasia Y Simpson
- Department of Biological Sciences, Auburn University, Auburn, AL 36849, USA
| | - Catherine Tylan
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Tracy Langkilde
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA.,Intercollege Graduate Degree Program in Ecology, Pennsylvania State University, University Park, PA 16802, USA
| | - Tonia S Schwartz
- Department of Biological Sciences, Auburn University, Auburn, AL 36849, USA
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Scudiero R, Verderame M, Motta CM, Migliaccio V, Simoniello P. HSP70 localization in Podarcissiculus embryos under natural thermal regime and following a non-lethal cold shock. C R Biol 2019; 342:299-308. [PMID: 31734081 DOI: 10.1016/j.crvi.2019.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 10/07/2019] [Indexed: 11/30/2022]
Abstract
The Heat Shock Proteins (HSPs) are a superfamily of molecular chaperones that maintain cellular homeostasis under stress. HSP70 represents the major stress-inducible family member, often activated in response to changes in thermal ranges of organisms, and therefore playing an important role enhancing thermal tolerance limits in ectothermic animals. The present study aimed to investigate the presence and the localization of HSP70 through the development of Podarcis siculus, an oviparous lizard inhabiting temperate Mediterranean regions, showing a limited potential to tolerate thermal changes during embryogenesis. Immunohistochemical analysis demonstrated that HSP70 protein is constitutively present in early embryonic stages, abundantly distributed in eye, in encephalic domains (predominantly in ventricular areas and in grey matter), in grey matter of spinal cord, in lung, gut mucosa, hepatic cords and kidney tubules. Interestingly, a severe drop in incubation temperature (5°C for 3 days) does not induce enhancements in HSP70 levels nor changes in tissues localization. These results suggest that the HSP70 found in P. siculus embryos represents a non-inducible, constitutive molecular chaperone that should be better called Heat Shock Cognate 70 (HSC70); the presence of stress-induced members of the HSP family in P. siculus has yet to be proven.
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Affiliation(s)
- Rosaria Scudiero
- Department of Biology, University Federico II, via Cintia, 80126 Napoli, Italy.
| | | | - Chiara Maria Motta
- Department of Biology, University Federico II, via Cintia, 80126 Napoli, Italy
| | - Vincenzo Migliaccio
- Department of Biology, University Federico II, via Cintia, 80126 Napoli, Italy
| | - Palma Simoniello
- Department of Science and Technologies, University of Naples Parthenope, 80143 Napoli, Italy
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Velázquez-Rodríguez AS, García-Cruz A, Burggren W, Rodríguez-Romero FDJ. Physical and Chemical Variables Promote Successful Nesting in High Mountain Sceloporus Lizards in Central México. HERPETOLOGICA 2019. [DOI: 10.1655/d-18-00022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Alma Socorro Velázquez-Rodríguez
- Facultad de Ciencias, Universidad Autónoma del Estado de México, El Cerrillo Piedras Blancas, km 15.5 carretera Toluca-Ixtlahuaca, Toluca Estado de México 50200, México
| | - Aleida García-Cruz
- Facultad de Ciencias, Universidad Autónoma del Estado de México, El Cerrillo Piedras Blancas, km 15.5 carretera Toluca-Ixtlahuaca, Toluca Estado de México 50200, México
| | - Warren Burggren
- Facultad de Ciencias, Universidad Autónoma del Estado de México, El Cerrillo Piedras Blancas, km 15.5 carretera Toluca-Ixtlahuaca, Toluca Estado de México 50200, México
| | - Felipe De Jesús Rodríguez-Romero
- Facultad de Ciencias, Universidad Autónoma del Estado de México, El Cerrillo Piedras Blancas, km 15.5 carretera Toluca-Ixtlahuaca, Toluca Estado de México 50200, México
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Health status of the lizard Podarcis siculus (Rafinesque-Schmaltz, 1810) subject to different anthropogenic pressures. C R Biol 2019; 342:81-89. [DOI: 10.1016/j.crvi.2019.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/04/2019] [Accepted: 04/04/2019] [Indexed: 12/24/2022]
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Diele-Viegas LM, Rocha CFD. Unraveling the influences of climate change in Lepidosauria (Reptilia). J Therm Biol 2018; 78:401-414. [PMID: 30509664 DOI: 10.1016/j.jtherbio.2018.11.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 10/25/2018] [Accepted: 11/12/2018] [Indexed: 12/30/2022]
Abstract
In recent decades, changes in climate have caused impacts on natural and human systems on all continents and across the oceans and many species have shifted their geographic ranges, seasonal activities, migration patterns, abundances and interactions in response to these changes. Projections of future climate change are uncertain, but the Earth's warming is likely to exceed 4.8 °C by the end of 21th century. The vulnerability of a population, species, group or system due to climate change is a function of impact of the changes on the evaluated system (exposure and sensitivity) and adaptive capacity as a response to this impact, and the relationship between these elements will determine the degree of species vulnerability. Predicting the potential future risks to biodiversity caused by climate change has become an extremely active field of research, and several studies in the last two decades had focused on determining possible impacts of climate change on Lepidosaurians, at a global, regional and local level. Here we conducted a systematic review of published studies in order to seek to what extent the accumulated knowledge currently allow us to identify potential trends or patterns regarding climate change effects on lizards, snakes, amphisbaenians and tuatara. We conducted a literature search among online literature databases/catalogues and recorded 255 studies addressing the influence of climate change on a total of 1918 species among 49 Lepidosaurian's families. The first study addressing this subject is dated 1999. Most of the studies focused on species distribution, followed by thermal biology, reproductive biology, behavior and genetics. We concluded that an integrative approach including most of these characteristics and also bioclimatic and environmental variables, may lead to consistent and truly effective strategies for species conservation, aiming to buffer the climate change effects on this group of reptiles.
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Gangloff EJ, Telemeco RS. High Temperature, Oxygen, and Performance: Insights from Reptiles and Amphibians. Integr Comp Biol 2018; 58:9-24. [DOI: 10.1093/icb/icy005] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Eric J Gangloff
- Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames, IA 50011, USA
| | - Rory S Telemeco
- Department of Biology, California State University Fresno, Fresno, CA 93740, USA
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