Chromosomal Mapping of Rex Retrotransposons in Tambaqui (Colossoma macropomum Cuvier, 1818) Exposed to Three Climate Change Scenarios
Greenhouse gas emissions are known to influence the planet's temperature, mainly due to human activities. To allow hypothesis testing, as well as to seek viable alternatives for mitigation, the Intergovernmental Panel on Climate Change (IPCC) suggested 3 main scenarios for changes projected for the...
| Autor principal: | Viana Ferreira, Alex M. |
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| Outros Autores: | Marajó, Leandro, Matoso, D. A., Braga Ribeiro, Leila, Feldberg, Eliana |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Cytogenetic and Genome Research
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/16601 |
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oai:repositorio:1-16601 |
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oai:repositorio:1-16601 Chromosomal Mapping of Rex Retrotransposons in Tambaqui (Colossoma macropomum Cuvier, 1818) Exposed to Three Climate Change Scenarios Viana Ferreira, Alex M. Marajó, Leandro Matoso, D. A. Braga Ribeiro, Leila Feldberg, Eliana Adaptation Animals Experiment Chromosomal Mapping Climate Change Colossoma Macropomum Constitutive Heterochromatin Diploidy Epigenetics Fingerling Fish Genetics Gene Sequence Heterochromatin Hybridization Metaphase Microcosm Nonhuman Priority Journal Retroposon Adverse Event Animals Characiformes Chromosomal Mapping Genetics Greenhouse Gas Karyotype Stress, Physiological Retroposon Temperature Animal Characiformes Chromosome Mapping Climate Change Greenhouse Gases Karyotype Retroelements Stress, Physiological Temperature Greenhouse gas emissions are known to influence the planet's temperature, mainly due to human activities. To allow hypothesis testing, as well as to seek viable alternatives for mitigation, the Intergovernmental Panel on Climate Change (IPCC) suggested 3 main scenarios for changes projected for the year 2100. In this paper, we subjected Colossoma macropomum Cuvier, 1818 (tambaqui) individuals in a microcosm to IPCC scenarios B1 (mild), A1B (intermediate), and A2 (extreme) to test possible impacts on their genome. We found chromosome heterochromatinization in specimens exposed to the A2 scenario, where terminal blocks and interstitial bands were detected on several chromosome pairs. The behavior of Rex1 and Rex3 sequences differed between the test scenarios. Hybridization of Rex1 resulted in diffuse signals which showed a gradual increase in the tested scenarios. For Rex3, an increase was observed in the A2 scenario with blocks on several chromosomes, some of which coincided with heterochromatin. Heterochromatinization is an epigenetic process, which may have occurred as a mechanism for regulating Rex3 activity. The signal pattern of Rex6 did not change, suggesting that other mechanisms are acting to regulate its activity. © 2019 S. Karger AG, Basel. Copyright: All rights reserved. 2020-06-15T21:35:23Z 2020-06-15T21:35:23Z 2019 Artigo https://repositorio.inpa.gov.br/handle/1/16601 10.1159/000502926 en Volume 159, Número 1, Pags. 39-47 Restrito Cytogenetic and Genome Research |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Adaptation Animals Experiment Chromosomal Mapping Climate Change Colossoma Macropomum Constitutive Heterochromatin Diploidy Epigenetics Fingerling Fish Genetics Gene Sequence Heterochromatin Hybridization Metaphase Microcosm Nonhuman Priority Journal Retroposon Adverse Event Animals Characiformes Chromosomal Mapping Genetics Greenhouse Gas Karyotype Stress, Physiological Retroposon Temperature Animal Characiformes Chromosome Mapping Climate Change Greenhouse Gases Karyotype Retroelements Stress, Physiological Temperature |
| spellingShingle |
Adaptation Animals Experiment Chromosomal Mapping Climate Change Colossoma Macropomum Constitutive Heterochromatin Diploidy Epigenetics Fingerling Fish Genetics Gene Sequence Heterochromatin Hybridization Metaphase Microcosm Nonhuman Priority Journal Retroposon Adverse Event Animals Characiformes Chromosomal Mapping Genetics Greenhouse Gas Karyotype Stress, Physiological Retroposon Temperature Animal Characiformes Chromosome Mapping Climate Change Greenhouse Gases Karyotype Retroelements Stress, Physiological Temperature Viana Ferreira, Alex M. Chromosomal Mapping of Rex Retrotransposons in Tambaqui (Colossoma macropomum Cuvier, 1818) Exposed to Three Climate Change Scenarios |
| topic_facet |
Adaptation Animals Experiment Chromosomal Mapping Climate Change Colossoma Macropomum Constitutive Heterochromatin Diploidy Epigenetics Fingerling Fish Genetics Gene Sequence Heterochromatin Hybridization Metaphase Microcosm Nonhuman Priority Journal Retroposon Adverse Event Animals Characiformes Chromosomal Mapping Genetics Greenhouse Gas Karyotype Stress, Physiological Retroposon Temperature Animal Characiformes Chromosome Mapping Climate Change Greenhouse Gases Karyotype Retroelements Stress, Physiological Temperature |
| description |
Greenhouse gas emissions are known to influence the planet's temperature, mainly due to human activities. To allow hypothesis testing, as well as to seek viable alternatives for mitigation, the Intergovernmental Panel on Climate Change (IPCC) suggested 3 main scenarios for changes projected for the year 2100. In this paper, we subjected Colossoma macropomum Cuvier, 1818 (tambaqui) individuals in a microcosm to IPCC scenarios B1 (mild), A1B (intermediate), and A2 (extreme) to test possible impacts on their genome. We found chromosome heterochromatinization in specimens exposed to the A2 scenario, where terminal blocks and interstitial bands were detected on several chromosome pairs. The behavior of Rex1 and Rex3 sequences differed between the test scenarios. Hybridization of Rex1 resulted in diffuse signals which showed a gradual increase in the tested scenarios. For Rex3, an increase was observed in the A2 scenario with blocks on several chromosomes, some of which coincided with heterochromatin. Heterochromatinization is an epigenetic process, which may have occurred as a mechanism for regulating Rex3 activity. The signal pattern of Rex6 did not change, suggesting that other mechanisms are acting to regulate its activity. © 2019 S. Karger AG, Basel. Copyright: All rights reserved. |
| format |
Artigo |
| author |
Viana Ferreira, Alex M. |
| author2 |
Marajó, Leandro Matoso, D. A. Braga Ribeiro, Leila Feldberg, Eliana |
| author2Str |
Marajó, Leandro Matoso, D. A. Braga Ribeiro, Leila Feldberg, Eliana |
| title |
Chromosomal Mapping of Rex Retrotransposons in Tambaqui (Colossoma macropomum Cuvier, 1818) Exposed to Three Climate Change Scenarios |
| title_short |
Chromosomal Mapping of Rex Retrotransposons in Tambaqui (Colossoma macropomum Cuvier, 1818) Exposed to Three Climate Change Scenarios |
| title_full |
Chromosomal Mapping of Rex Retrotransposons in Tambaqui (Colossoma macropomum Cuvier, 1818) Exposed to Three Climate Change Scenarios |
| title_fullStr |
Chromosomal Mapping of Rex Retrotransposons in Tambaqui (Colossoma macropomum Cuvier, 1818) Exposed to Three Climate Change Scenarios |
| title_full_unstemmed |
Chromosomal Mapping of Rex Retrotransposons in Tambaqui (Colossoma macropomum Cuvier, 1818) Exposed to Three Climate Change Scenarios |
| title_sort |
chromosomal mapping of rex retrotransposons in tambaqui (colossoma macropomum cuvier, 1818) exposed to three climate change scenarios |
| publisher |
Cytogenetic and Genome Research |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/16601 |
| _version_ |
1787144334748942336 |
| score |
11.755432 |