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Location-Specific Responses to Thermal Stress in Larvae of the Reef-Building Coral Montastraea faveolata

BACKGROUND: The potential to adapt to a changing climate depends in part upon the standing genetic variation present in wild populations. In corals, the dispersive larval phase is particularly vulnerable to the effects of environmental stress. Larval survival and response to stress during dispersal...

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Autores principales: Polato, Nicholas R., Voolstra, Christian R., Schnetzer, Julia, DeSalvo, Michael K., Randall, Carly J., Szmant, Alina M., Medina, Mónica, Baums, Iliana B.
Formato: Texto
Lenguaje:English
Publicado: Public Library of Science 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2890407/
https://www.ncbi.nlm.nih.gov/pubmed/20585643
http://dx.doi.org/10.1371/journal.pone.0011221
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author Polato, Nicholas R.
Voolstra, Christian R.
Schnetzer, Julia
DeSalvo, Michael K.
Randall, Carly J.
Szmant, Alina M.
Medina, Mónica
Baums, Iliana B.
author_facet Polato, Nicholas R.
Voolstra, Christian R.
Schnetzer, Julia
DeSalvo, Michael K.
Randall, Carly J.
Szmant, Alina M.
Medina, Mónica
Baums, Iliana B.
author_sort Polato, Nicholas R.
collection PubMed
description BACKGROUND: The potential to adapt to a changing climate depends in part upon the standing genetic variation present in wild populations. In corals, the dispersive larval phase is particularly vulnerable to the effects of environmental stress. Larval survival and response to stress during dispersal and settlement will play a key role in the persistence of coral populations. METHODOLOGY/PRINCIPAL FINDINGS: To test the hypothesis that larval transcription profiles reflect location-specific responses to thermal stress, symbiont-free gametes from three to four colonies of the scleractinian coral Montastraea faveolata were collected from Florida and Mexico, fertilized, and raised under mean and elevated (up 1 to 2°C above summer mean) temperatures. These locations have been shown to exchange larvae frequently enough to prevent significant differentiation of neutral loci. Differences among 1,310 unigenes were simultaneously characterized using custom cDNA microarrays, allowing investigation of gene expression patterns among larvae generated from wild populations under stress. Results show both conserved and location-specific variation in key processes including apoptosis, cell structuring, adhesion and development, energy and protein metabolism, and response to stress, in embryos of a reef-building coral. CONCLUSIONS/SIGNIFICANCE: These results provide first insights into location-specific variation in gene expression in the face of gene flow, and support the hypothesis that coral host genomes may house adaptive potential needed to deal with changing environmental conditions.
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spelling pubmed-28904072010-06-28 Location-Specific Responses to Thermal Stress in Larvae of the Reef-Building Coral Montastraea faveolata Polato, Nicholas R. Voolstra, Christian R. Schnetzer, Julia DeSalvo, Michael K. Randall, Carly J. Szmant, Alina M. Medina, Mónica Baums, Iliana B. PLoS One Research Article BACKGROUND: The potential to adapt to a changing climate depends in part upon the standing genetic variation present in wild populations. In corals, the dispersive larval phase is particularly vulnerable to the effects of environmental stress. Larval survival and response to stress during dispersal and settlement will play a key role in the persistence of coral populations. METHODOLOGY/PRINCIPAL FINDINGS: To test the hypothesis that larval transcription profiles reflect location-specific responses to thermal stress, symbiont-free gametes from three to four colonies of the scleractinian coral Montastraea faveolata were collected from Florida and Mexico, fertilized, and raised under mean and elevated (up 1 to 2°C above summer mean) temperatures. These locations have been shown to exchange larvae frequently enough to prevent significant differentiation of neutral loci. Differences among 1,310 unigenes were simultaneously characterized using custom cDNA microarrays, allowing investigation of gene expression patterns among larvae generated from wild populations under stress. Results show both conserved and location-specific variation in key processes including apoptosis, cell structuring, adhesion and development, energy and protein metabolism, and response to stress, in embryos of a reef-building coral. CONCLUSIONS/SIGNIFICANCE: These results provide first insights into location-specific variation in gene expression in the face of gene flow, and support the hypothesis that coral host genomes may house adaptive potential needed to deal with changing environmental conditions. Public Library of Science 2010-06-23 /pmc/articles/PMC2890407/ /pubmed/20585643 http://dx.doi.org/10.1371/journal.pone.0011221 Text en Polato et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Polato, Nicholas R.
Voolstra, Christian R.
Schnetzer, Julia
DeSalvo, Michael K.
Randall, Carly J.
Szmant, Alina M.
Medina, Mónica
Baums, Iliana B.
Location-Specific Responses to Thermal Stress in Larvae of the Reef-Building Coral Montastraea faveolata
title Location-Specific Responses to Thermal Stress in Larvae of the Reef-Building Coral Montastraea faveolata
title_full Location-Specific Responses to Thermal Stress in Larvae of the Reef-Building Coral Montastraea faveolata
title_fullStr Location-Specific Responses to Thermal Stress in Larvae of the Reef-Building Coral Montastraea faveolata
title_full_unstemmed Location-Specific Responses to Thermal Stress in Larvae of the Reef-Building Coral Montastraea faveolata
title_short Location-Specific Responses to Thermal Stress in Larvae of the Reef-Building Coral Montastraea faveolata
title_sort location-specific responses to thermal stress in larvae of the reef-building coral montastraea faveolata
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2890407/
https://www.ncbi.nlm.nih.gov/pubmed/20585643
http://dx.doi.org/10.1371/journal.pone.0011221
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