Effect of decreasing temperature on the strobilation of Aurelia sp.1

  • Yan Shi (石岩)
  • Zhigang Yu (于志刚)
  • Yu Zhen (甄毓)
  • Guoshan Wang (王国善)
  • Xungong Wang (王勋功)
  • Tiezhu Mi (米铁柱)
Article
  • 28 Downloads

Abstract

The worldwide proliferation of marine jellyfish has become a crucial ecological and social issue, and as a cosmopolitan species, Aurelia spp. have received increasing scientific attentions. In the present study, the responses of strobilation in Aurelia sp.1 to decreasing temperature were illuminated through the expression levels of the retinoid x receptor (RxR) gene and the gene encoding a secreted protein, CL390. We observed that a higher final temperature decreased the strobilation prophase and strobilation interphase periods, and the growth rate of the strobilae ratio increased with increasing CL390 gene expression. The ratio of strobilae at 12°C was highest, and the strobilae showed the higher releasing ratios at both 12°C and 16°C compared with those at 4°C and 8°C. Furthermore, more ephyrae were released at the higher final temperature. Additionally, up-regulation and down-regulation of the CL390 gene were observed in response to the four decreasing temperatures. Although the four CL390 gene transcript levels increased more significantly than the transcript levels of the RxR gene, similar trends were observed in both genes.

Keywords

moon jellyfish strobila retinoid x receptor (RxR) CL390 

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Notes

Acknowledgment

The authors thank WANG Minxiao for assistance with the molecular techniques and CHEN Ye and LU Wenhua for assistance with polyp cultivation.

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Copyright information

© Chinese Society for Oceanology and Limnology, Science Press and Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Yan Shi (石岩)
    • 1
    • 2
    • 3
  • Zhigang Yu (于志刚)
    • 3
    • 4
  • Yu Zhen (甄毓)
    • 1
    • 2
    • 3
  • Guoshan Wang (王国善)
    • 1
    • 2
    • 3
  • Xungong Wang (王勋功)
    • 1
    • 2
    • 3
  • Tiezhu Mi (米铁柱)
    • 1
    • 2
    • 3
  1. 1.College of Environmental Science and EngineeringOcean University of ChinaQingdaoChina
  2. 2.Key Laboratory of Marine Environment and EcologyMinistry of EducationQingdaoChina
  3. 3.Laboratory for Marine Ecology and Environmental ScienceQingdao National Laboratory for Marine Science and TechnologyQingdaoChina
  4. 4.Key Laboratory of Marine Chemistry Theory and TechnologyMinistry of EducationQingdaoChina

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