Expression of the DNA Repair Enzyme, Photolyase, in Developmental Tissues and Larvae, and in Response to Ambient UV‐R in the Antarctic Sea Urchin Sterechinus neumayeri
Abstract Gene expression of the DNA repair enzyme, photolyase (E.C. 4.1.99.3) was examined in the gonads, eggs, embryos and larval stages of the Antarctic sea urchin, Sterechinus neumayeri . Partial sequencing of the gene revealed two highly conserved regions, including a 300 bp region representing...
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crwiley:10.1111/j.1751-1097.2009.00566.x 2024-09-15T17:48:00+00:00 Expression of the DNA Repair Enzyme, Photolyase, in Developmental Tissues and Larvae, and in Response to Ambient UV‐R in the Antarctic Sea Urchin Sterechinus neumayeri Isely, Nikolas Lamare, Miles Marshall, Craig Barker, Mike 2009 http://dx.doi.org/10.1111/j.1751-1097.2009.00566.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1751-1097.2009.00566.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1751-1097.2009.00566.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Photochemistry and Photobiology volume 85, issue 5, page 1168-1176 ISSN 0031-8655 1751-1097 journal-article 2009 crwiley https://doi.org/10.1111/j.1751-1097.2009.00566.x 2024-08-09T04:20:52Z Abstract Gene expression of the DNA repair enzyme, photolyase (E.C. 4.1.99.3) was examined in the gonads, eggs, embryos and larval stages of the Antarctic sea urchin, Sterechinus neumayeri . Partial sequencing of the gene revealed two highly conserved regions, including a 300 bp region representing the binding site for the cofactor flavin adenine dinucleotide. The second 1200 bp region, likely representing a second light‐harvesting cofactor binding site, was identified in a second sea urchin species, Strongylocentrotus frascicanus . Probes for photolyase were developed from the shorter sequence, and expression in sea urchin developmental tissue and stages, and in response to in situ exposure to ultraviolet radiation was quantified using PCR and RT‐qPCR, with concentrations of photolyase normalized to actin concentrations. Photolyase was expressed in all tissues and developmental stages examined. In controlled field‐based experiments in McMurdo Sound, Antarctica, we found evidence of both constitutive expression of photolyase and induction in response to in situ exposure of embryos to UV‐R. Induction of photolyase was observed in response to greater ambient UV‐R (such as shallower water depths or sea ice‐free regions). Article in Journal/Newspaper Antarc* Antarctic Antarctica McMurdo Sound Sea ice Wiley Online Library Photochemistry and Photobiology 85 5 1168 1176 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Gene expression of the DNA repair enzyme, photolyase (E.C. 4.1.99.3) was examined in the gonads, eggs, embryos and larval stages of the Antarctic sea urchin, Sterechinus neumayeri . Partial sequencing of the gene revealed two highly conserved regions, including a 300 bp region representing the binding site for the cofactor flavin adenine dinucleotide. The second 1200 bp region, likely representing a second light‐harvesting cofactor binding site, was identified in a second sea urchin species, Strongylocentrotus frascicanus . Probes for photolyase were developed from the shorter sequence, and expression in sea urchin developmental tissue and stages, and in response to in situ exposure to ultraviolet radiation was quantified using PCR and RT‐qPCR, with concentrations of photolyase normalized to actin concentrations. Photolyase was expressed in all tissues and developmental stages examined. In controlled field‐based experiments in McMurdo Sound, Antarctica, we found evidence of both constitutive expression of photolyase and induction in response to in situ exposure of embryos to UV‐R. Induction of photolyase was observed in response to greater ambient UV‐R (such as shallower water depths or sea ice‐free regions). |
format |
Article in Journal/Newspaper |
author |
Isely, Nikolas Lamare, Miles Marshall, Craig Barker, Mike |
spellingShingle |
Isely, Nikolas Lamare, Miles Marshall, Craig Barker, Mike Expression of the DNA Repair Enzyme, Photolyase, in Developmental Tissues and Larvae, and in Response to Ambient UV‐R in the Antarctic Sea Urchin Sterechinus neumayeri |
author_facet |
Isely, Nikolas Lamare, Miles Marshall, Craig Barker, Mike |
author_sort |
Isely, Nikolas |
title |
Expression of the DNA Repair Enzyme, Photolyase, in Developmental Tissues and Larvae, and in Response to Ambient UV‐R in the Antarctic Sea Urchin Sterechinus neumayeri |
title_short |
Expression of the DNA Repair Enzyme, Photolyase, in Developmental Tissues and Larvae, and in Response to Ambient UV‐R in the Antarctic Sea Urchin Sterechinus neumayeri |
title_full |
Expression of the DNA Repair Enzyme, Photolyase, in Developmental Tissues and Larvae, and in Response to Ambient UV‐R in the Antarctic Sea Urchin Sterechinus neumayeri |
title_fullStr |
Expression of the DNA Repair Enzyme, Photolyase, in Developmental Tissues and Larvae, and in Response to Ambient UV‐R in the Antarctic Sea Urchin Sterechinus neumayeri |
title_full_unstemmed |
Expression of the DNA Repair Enzyme, Photolyase, in Developmental Tissues and Larvae, and in Response to Ambient UV‐R in the Antarctic Sea Urchin Sterechinus neumayeri |
title_sort |
expression of the dna repair enzyme, photolyase, in developmental tissues and larvae, and in response to ambient uv‐r in the antarctic sea urchin sterechinus neumayeri |
publisher |
Wiley |
publishDate |
2009 |
url |
http://dx.doi.org/10.1111/j.1751-1097.2009.00566.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1751-1097.2009.00566.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1751-1097.2009.00566.x |
genre |
Antarc* Antarctic Antarctica McMurdo Sound Sea ice |
genre_facet |
Antarc* Antarctic Antarctica McMurdo Sound Sea ice |
op_source |
Photochemistry and Photobiology volume 85, issue 5, page 1168-1176 ISSN 0031-8655 1751-1097 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1751-1097.2009.00566.x |
container_title |
Photochemistry and Photobiology |
container_volume |
85 |
container_issue |
5 |
container_start_page |
1168 |
op_container_end_page |
1176 |
_version_ |
1810288659142803456 |