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COMPARATIVE TRANSCRIPTOME ANALYSIS PROVIDES INSIGHTS INTO RESPONSE OF ULVA COMPRESSA TO FLUCTUATING SALINITY CONDITIONS

文献类型： 外文期刊

作者： Xing, Qikun 1 ; Bi, Guiqi 1 ; Cao, Min 1 ; Belcour, Arnaud 5 ; Aite, Meziane 5 ; Mo, Zhaolan 1 ; Mao, Yunxiang 6 ;

作者机构： 1.Ocean Univ China, Coll Marine Life Sci, MOE Key Lab Marine Genet & Breeding, Qingdao 266003, Peoples R China

2.Sorbonne Univ, CNRS, UMR8227, Integrat Biol Marine Models LBI2M,Stn Biol Roscof, F-29680 Roscoff, France

3.Chinese Acad Agr Sci, Agr Genomes Inst Shenzhen, Agr Synthet Biol Ctr, Shenzhen 518120, Peoples R China

4.Qingdao Agr Univ, Sch Marine Sci & Engn, Qingdao 266109, Peoples R China

5.Univ Rennes, CNRS, INRIA, IRISA,Equipe Dyliss, Rennes, France

6.Hainan Trop Ocean Univ, Coll Fisheries & Life Sci, MOE Key Lab Utilizat & Conservat Trop Marine Bior, Sanya 572022, Peoples R China

7.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China

关键词： hypo-salinity stress; macroalgal blooms; transcriptome; Ulva compressa

期刊名称：JOURNAL OF PHYCOLOGY （ 影响因子：2.923； 五年影响因子：3.091 ）

ISSN： 0022-3646

年卷期：

页码：

收录情况： SCI

摘要： Ulva compressa, a green tide-forming species, can adapt to hypo-salinity conditions, such as estuaries and brackish lakes. To understand the underlying molecular mechanisms of hypo-salinity stress tolerance, transcriptome-wide gene expression profiles in U. compressa were created using digital gene expression profiles. The RNA-seq data were analyzed based on the comparison of differently expressed genes involved in specific pathways under hypo-salinity and recovery conditions. The up-regulation of genes in photosynthesis and glycolysis pathways may contribute to the recovery of photosynthesis and energy metabolism, which could provide sufficient energy for the tolerance under long-term hyposaline stress. Multiple strategies, such as ion transportation and osmolytes metabolism, were performed to maintain the osmotic homeostasis. Additionally, several long noncoding RNA were differently expressed during the stress, which could play important roles in the osmotolerance. Our work will serve as an essential foundation for the understanding of the tolerance mechanism of U. compressa under the fluctuating salinity conditions.

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