Differential gene expression in juvenile polyps of the coral Acropora tenuis exposed to thermal and chemical stresses

Ikuko Yuyama; Yoshihiko Ito; Toshiki WatanabeMichio HidakaYoshimi SuzukiMutsumi Nishida

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Differential gene expression in juvenile polyps of the coral Acropora tenuis exposed to thermal and chemical stresses

机译：Differential gene expression in juvenile polyps of the coral Acropora tenuis exposed to thermal and chemical stresses

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We describe a strategy to identify stress-responsive genes in corals by means of high-coverage cDNA expression profiling (HiCEP). In this study, the effects of thermal and chemical (DCMU and TBT-Cl) stresses on Acropora tenuis juvenile polyps were examined, and 19 genes were identified as stress-responsive genes. Of these, seven had sequences significantly similar to sequences of known proteins. We quantified the expression levels of these seven using real-time PCR. In corals, the genes encoding heat shock protein 90, calren'culin, methionine adenosyltransferase, and aquaglyceroporin showed differential stress-related expression patterns. In the endosym-bion'c algae associated with the corals, genes coding for DnaJ-like protein and chloroplast light-harvesting protein were identified as stress-responsive genes. The only gene showing increased expression in response to all three stresses (thermal and both chemical stresses) was the coral gene coding for the oxidan've stress-responsive protein, suggesting that oxidan've stress generally occurs in each stress-exposed polyp.

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《Journal of experimental marine biology and ecology》 |2012年第1期|17-24|共8页
作者
Ikuko Yuyama; Yoshihiko Ito; Toshiki WatanabeMichio HidakaYoshimi SuzukiMutsumi Nishida;
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Department of Marine Bioscience, Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8564, Japan;

Department of Chemistry, Biology and Marine Sicence, University of the Ryukyus, Nishihara, Okinawa, 903-0213, Japan;

Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, JapanDepartment of Marine Bioscience, Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8564, Japan ,Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-852;

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正文语种英语
中图分类水生生物学;
关键词
coral; gene expression; HiCEP; stress response; symbiosis; zooxanthellae;

Differential gene expression in juvenile polyps of the coral Acropora tenuis exposed to thermal and chemical stresses

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