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Superoxide dismutase and ascorbate peroxidase genes in Antarctic endemic brown alga Ascoseira mirabilis (Ascoseirales, Phaeophyceae): data mining of a de novo transcriptome
Liu, Chenlin1,2; Wang, Xiuliang2,3
2020-12-01
发表期刊BOTANICA MARINA
ISSN0006-8055
卷号63期号:6页码:541-549
通讯作者Liu, Chenlin(ch.lliu@163.com)
摘要The Antarctic endemic brown alga Ascoseira mirabilis is physically and physiologically well adapted to the extreme polar environment. To better understand the molecular strategies associated with stress adaptation, the transcriptome of A. mirabilis was sequenced, and its antioxidant enzyme genes were identified and compared with other algae. A total of 126,576 unigenes with a mean length of 734 bp and N50 of 1174 bp was assembled from the transcriptome data. Phylogenetic analysis revealed that dramatic evolutionary changes had occurred in the brown algal superoxide dismutases (SODs) and class I peroxidases that were not consistent with the phylogeny of the species. Fe/Mn SODs are more prevalent in brown algae than in red and green algae. Two additional Fe-SODs in A. mirabilis were phylogenetically closely related to those of green algae, but not to those in other brown algae. We also identified three A. mirabilis ascorbate peroxidase (APx) genes that had a different origin from other brown algal APxs. The SOD and APx genes specifically identified in A. mirabilis will be crucial for understanding the evolution of the algal antioxidant enzymes that contribute to ecological success under extreme environmental conditions in the Antarctic region.
关键词Antarctic brown alga ascorbate peroxidase Ascoseira mirabilis superoxide dismutase transcriptomic analysis
DOI10.1515/bot-2020-0025
收录类别SCI
语种英语
资助项目34th Chinese National Antarctic Research Exploration with the Xiangyanghong 01 scientific expedition vessel[JDKC0518013] ; National Key R&D programme of China[2018YFC1406705]
WOS研究方向Plant Sciences ; Marine & Freshwater Biology
WOS类目Plant Sciences ; Marine & Freshwater Biology
WOS记录号WOS:000594530500006
出版者WALTER DE GRUYTER GMBH
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/169433
专题中国科学院海洋研究所
通讯作者Liu, Chenlin
作者单位1.Minist Nat Resources, Key Lab Marine Ecol Environm Sci & Technol, Qingdao 266061, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266000, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
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Liu, Chenlin,Wang, Xiuliang. Superoxide dismutase and ascorbate peroxidase genes in Antarctic endemic brown alga Ascoseira mirabilis (Ascoseirales, Phaeophyceae): data mining of a de novo transcriptome[J]. BOTANICA MARINA,2020,63(6):541-549.
APA Liu, Chenlin,&Wang, Xiuliang.(2020).Superoxide dismutase and ascorbate peroxidase genes in Antarctic endemic brown alga Ascoseira mirabilis (Ascoseirales, Phaeophyceae): data mining of a de novo transcriptome.BOTANICA MARINA,63(6),541-549.
MLA Liu, Chenlin,et al."Superoxide dismutase and ascorbate peroxidase genes in Antarctic endemic brown alga Ascoseira mirabilis (Ascoseirales, Phaeophyceae): data mining of a de novo transcriptome".BOTANICA MARINA 63.6(2020):541-549.
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