Ren, Qingmin1,2; Wang, Yin-chu1,3
; Lin, Yanni4; Zhen, Zhanghe1,2; Cui, Yulin1,3; Qin, Song1,3发表期刊ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
ISSN2211-9264
2021-06-01
卷号56页码:11
关键词Haematococcus pluvialisChloroplast genomeAstaxanthinNon-coding regionsRepeated sequences
DOI10.1016/j.algal.2021.102308
通讯作者Qin, Song(sqin@yic.ac.cn)
英文摘要Astaxanthin is arguably nature's most potent antioxidant, powerful to prevent free radical damage and oxidative stress. The microalga Haematococcus pluvialis seems to accumulate the highest levels of astaxanthin in nature and thus is currently the primary industrial source for natural astaxanthin production. The accumulation happens under photooxidative stress to quench radical damage from the photosynthesis, which is considered as one of the main reasons why chloroplast genomes are usually kept the small size and high guanine-cytosine (GC) content. We hypothesize that the outstanding astaxanthin production of the species may reflect its chloroplast genome features. In this study, the complete chloroplast genome of H. pluvialis FACHB-712 was sequenced and investigated. The genome is large, comprising 1.35 Mbp with 83 genes. However, the GC content is counterintuitively as high as 50.1%. The genome shows slight phylogenetic distance and genome structural differences in comparison with that of H. lacustris, whose species nomenclature is confusing and controversial. Moreover, a possible correlation between its powerful antioxidant capacity and the large chloroplast genome maintenance was further investigated. Strains of Chlorophyta and several strains with chloroplast genomes size of more than 500 kbp were used for comparative analysis. The evolutionary mechanism for the large chloroplast genome and and the contribution of non-coding region ratio and GC content to genome amplification is discussed.Large genomes may be associated with harsh habitats, and increased GC content may be used to increase stability.
资助机构National Natural Science Foundation of China; Major Basic Research Program of Shandong Province Natural Science Foundation; Project of Innovation & Development of Marine Economy
收录类别SCI
语种英语
关键词[WOS]NOV RHODELLOPHYCEAE; PLASTID GENOMES; CHLOROPHYCEAE; SEQUENCE; MITOCHONDRIAL; ORGANELLE; GENES; ARCHITECTURE; REPLICATION; INSTABILITY
研究领域[WOS]Biotechnology & Applied Microbiology
WOS记录号WOS:000663410100004
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/29428
专题海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
通讯作者Qin, Song作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Biol Resource Utilizat, Yantai 264003, Shandong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
4.Yantai Univ, Yantai 264005, Shandong, Peoples R China
推荐引用方式
GB/T 7714Ren, Qingmin,Wang, Yin-chu,Lin, Yanni,et al. The extremely large chloroplast genome of the green alga Haematococcus pluvialis: Genome structure, and comparative analysis[J]. ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,2021,56:11.
APARen, Qingmin,Wang, Yin-chu,Lin, Yanni,Zhen, Zhanghe,Cui, Yulin,&Qin, Song.(2021).The extremely large chloroplast genome of the green alga Haematococcus pluvialis: Genome structure, and comparative analysis.ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,56,11.
MLARen, Qingmin,et al."The extremely large chloroplast genome of the green alga Haematococcus pluvialis: Genome structure, and comparative analysis".ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS 56(2021):11.
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