Identification of cold tolerance genes from leaves of mangrove plant Kandelia obovata by suppression subtractive hybridization

Low temperature is a major abiotic stress that seriously limits mangrove productivity and distribution, the molecular mechanisms of cold tolerance involved in mangroves are still poorly understood at present. It was used to identify the potential cold-related genes in Kandelia obovata (K. obovata) b...

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Veröffentlicht in:Ecotoxicology (London, England). - 1992. - 24(2015), 7-8 vom: 02. Okt., Seite 1686-96
1. Verfasser: Fei, Jiao (VerfasserIn)
Weitere Verfasser: Wang, You-Shao, Jiang, Zhao-Yu, Cheng, Hao, Zhang, Jian-Dong
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Ecotoxicology (London, England)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Cold tolerance Expressed sequence tag (EST) Kandelia obovata Mangrove Suppression subtractive hybridization (SSH) Plant Proteins
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520 |a Low temperature is a major abiotic stress that seriously limits mangrove productivity and distribution, the molecular mechanisms of cold tolerance involved in mangroves are still poorly understood at present. It was used to identify the potential cold-related genes in Kandelia obovata (K. obovata) by suppression subtractive hybridization. 334 cold-related expressed sequence tags (ESTs) out of 670 clones were isolated and sequenced. Among these ESTs, 143 unique cDNAs were identified and classified into ten groups, such as metabolism, energy, cell rescue and defense, transcription and photosynthesis according to NCBI blast. Based on bioinformatics analysis, these ESTs were mainly related to response to stimulus and metabolic process, and were included to 72 KEGG pathways. Two selected genes (e.g., aquaporin gene and zinc family protein gene) from the library were further analyzed by quantitative real-time PCR analysis. Both the two genes were found to be transcriptionally up-regulated under cold stress, which partly approve the construction of the subtractive cDNA library. The diversity of the putative functions of these genes indicated that cold stress resulted in a complex response in K. obovata. Further investigation on the functions and potential pathways of these genes will facilitate the understanding of the molecular adaptations to cold tolerance in mangrove plants 
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650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Cold tolerance 
650 4 |a Expressed sequence tag (EST) 
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650 4 |a Suppression subtractive hybridization (SSH) 
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700 1 |a Wang, You-Shao  |e verfasserin  |4 aut 
700 1 |a Jiang, Zhao-Yu  |e verfasserin  |4 aut 
700 1 |a Cheng, Hao  |e verfasserin  |4 aut 
700 1 |a Zhang, Jian-Dong  |e verfasserin  |4 aut 
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