Differential sensitivity of coral larvae to natural levels of ultraviolet radiation during the onset of larval competence.

Handle URI:
http://hdl.handle.net/10754/324298
Title:
Differential sensitivity of coral larvae to natural levels of ultraviolet radiation during the onset of larval competence.
Authors:
Aranda, Manuel ( 0000-0001-6673-016X ) ; Banaszak, Anastazia T; Bayer, Till; Luyten, James R; Medina, Mónica; Voolstra, Christian R. ( 0000-0003-4555-3795 )
Abstract:
Scleractinian corals are the major builders of the complex structural framework of coral reefs. They live in tropical waters around the globe where they are frequently exposed to potentially harmful ultraviolet radiation (UVR). The eggs and early embryonic stages of some coral species are highly buoyant and remain near the sea surface for prolonged periods of time and may therefore be the most sensitive life stages with respect to UVR. Here, we analysed gene expression changes in five developmental stages of the Caribbean coral Montastraea faveolata to natural levels of UVR using high-density cDNA microarrays (10 930 clones). We found that larvae exhibit low sensitivity to natural levels of UVR during early development as reflected by comparatively few transcriptomic changes in response to UVR. However, we identified a time window of high UVR sensitivity that coincides with the motile planula stage and the onset of larval competence. These processes have been shown to be affected by UVR exposure, and the transcriptional changes we identified explain these observations well. Our analysis of differentially expressed genes indicates that UVR alters the expression of genes associated with stress response, the endoplasmic reticulum, Ca(2+) homoeostasis, development and apoptosis during the motile planula stage and affects the expression of neurogenesis-related genes that are linked to swimming and settlement behaviour at later stages. Taken together, our study provides further data on the impact of natural levels of UVR on coral larvae. Furthermore, our results might allow a better prediction of settlement and recruitment rates after coral spawning events if UVR climate data are taken into account.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
ARANDA M, BANASZAK AT, BAYER T, LUYTEN JR, MEDINA M, et al. (2011) Differential sensitivity of coral larvae to natural levels of ultraviolet radiation during the onset of larval competence. Molecular Ecology 20: 2955-2972. doi:10.1111/j.1365-294X.2011.05153.x.
Publisher:
Wiley-Blackwell
Journal:
Molecular Ecology
Issue Date:
Jul-2011
DOI:
10.1111/j.1365-294X.2011.05153.x
PubMed ID:
21689186; 21689186
Type:
Article
ISSN:
1365-294X
Additional Links:
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-294X.2011.05153.x/abstract; http://www.ncbi.nlm.nih.gov/pubmed/?term=10.1111%2Fj.1365-294X.2011.05153.x
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorAranda, Manuelen
dc.contributor.authorBanaszak, Anastazia Ten
dc.contributor.authorBayer, Tillen
dc.contributor.authorLuyten, James Ren
dc.contributor.authorMedina, Mónicaen
dc.contributor.authorVoolstra, Christian R.en
dc.date.accessioned2014-08-06T09:34:10Z-
dc.date.available2014-08-06T09:34:10Z-
dc.date.issued2011-07en
dc.identifier.citationARANDA M, BANASZAK AT, BAYER T, LUYTEN JR, MEDINA M, et al. (2011) Differential sensitivity of coral larvae to natural levels of ultraviolet radiation during the onset of larval competence. Molecular Ecology 20: 2955-2972. doi:10.1111/j.1365-294X.2011.05153.x.en
dc.identifier.issn1365-294Xen
dc.identifier.pmid21689186en
dc.identifier.pmid21689186en
dc.identifier.doi10.1111/j.1365-294X.2011.05153.xen
dc.identifier.urihttp://hdl.handle.net/10754/324298en
dc.description.abstractScleractinian corals are the major builders of the complex structural framework of coral reefs. They live in tropical waters around the globe where they are frequently exposed to potentially harmful ultraviolet radiation (UVR). The eggs and early embryonic stages of some coral species are highly buoyant and remain near the sea surface for prolonged periods of time and may therefore be the most sensitive life stages with respect to UVR. Here, we analysed gene expression changes in five developmental stages of the Caribbean coral Montastraea faveolata to natural levels of UVR using high-density cDNA microarrays (10 930 clones). We found that larvae exhibit low sensitivity to natural levels of UVR during early development as reflected by comparatively few transcriptomic changes in response to UVR. However, we identified a time window of high UVR sensitivity that coincides with the motile planula stage and the onset of larval competence. These processes have been shown to be affected by UVR exposure, and the transcriptional changes we identified explain these observations well. Our analysis of differentially expressed genes indicates that UVR alters the expression of genes associated with stress response, the endoplasmic reticulum, Ca(2+) homoeostasis, development and apoptosis during the motile planula stage and affects the expression of neurogenesis-related genes that are linked to swimming and settlement behaviour at later stages. Taken together, our study provides further data on the impact of natural levels of UVR on coral larvae. Furthermore, our results might allow a better prediction of settlement and recruitment rates after coral spawning events if UVR climate data are taken into account.en
dc.language.isoenen
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1111/j.1365-294X.2011.05153.x/abstracten
dc.relation.urlhttp://www.ncbi.nlm.nih.gov/pubmed/?term=10.1111%2Fj.1365-294X.2011.05153.xen
dc.rightsArchived with thanks to Molecular ecologyen
dc.subject.meshAnimalsen
dc.subject.meshAnthozoaen
dc.subject.meshGene Expression Regulation, Developmentalen
dc.subject.meshLarvaen
dc.subject.meshOligonucleotide Array Sequence Analysisen
dc.subject.meshTranscriptomeen
dc.subject.meshUltraviolet Raysen
dc.subject.meshAnimalsen
dc.subject.meshAnthozoaen
dc.subject.meshGene Expression Regulation, Developmentalen
dc.subject.meshLarvaen
dc.subject.meshOligonucleotide Array Sequence Analysisen
dc.subject.meshTranscriptomeen
dc.subject.meshUltraviolet Raysen
dc.titleDifferential sensitivity of coral larvae to natural levels of ultraviolet radiation during the onset of larval competence.en
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalMolecular Ecologyen
dc.eprint.versionPost-printen
dc.contributor.institutionUnidad Académica de Sistemas Arrecifales (Puerto Morelos), Instituto de Ciencias Del Mar y Limnología, Universidad Nacional Autõnoma de México, Puerto Morelos, QR 77580, Mexicoen
dc.contributor.institutionSchool of Natural Sciences, University of California Merced, 5200 North Lake Road, Merced, CA 95343, United Statesen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorAranda, Manuelen
kaust.authorBayer, Tillen
kaust.authorVoolstra, Christian R.en
kaust.authorLuyten, James R.en

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