The extremely large chloroplast genome of the green alga Haematococcus pluvialis: Genome structure, and comparative analysis
Ren, Qingmin1,2; Wang, Yin-chu1,3; Lin, Yanni4; Zhen, Zhanghe1,2; Cui, Yulin1,3; Qin, Song1,3
Source PublicationALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
ISSN2211-9264
2021-06-01
Volume56Pages:11
KeywordHaematococcus pluvialis Chloroplast genome Astaxanthin Non-coding regions Repeated sequences
DOI10.1016/j.algal.2021.102308
Corresponding AuthorQin, Song(sqin@yic.ac.cn)
AbstractAstaxanthin 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.
Funding OrganizationNational Natural Science Foundation of China ; Major Basic Research Program of Shandong Province Natural Science Foundation ; Project of Innovation & Development of Marine Economy
Indexed BySCI
Language英语
WOS KeywordNOV RHODELLOPHYCEAE ; PLASTID GENOMES ; CHLOROPHYCEAE ; SEQUENCE ; MITOCHONDRIAL ; ORGANELLE ; GENES ; ARCHITECTURE ; REPLICATION ; INSTABILITY
WOS Research AreaBiotechnology & Applied Microbiology
WOS IDWOS:000663410100004
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/29428
Collection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
Corresponding AuthorQin, Song
Affiliation1.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
Recommended Citation
GB/T 7714
Ren, 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.
APA Ren, 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.
MLA Ren, 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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