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| Comparative Analysis of Chloroplast Genomes of Seven Chaetoceros Species Revealed Variation Hotspots and Speciation Time | |
| Xu, Qing1,2,3,4; Cui, Zongmei2,3,4,5; Chen, Nansheng2,3,4,6 | |
| 2021-11-03 | |
| Source Publication | FRONTIERS IN MICROBIOLOGY
 |
| Volume | 12Pages:16 |
| Corresponding Author | Chen, Nansheng(chenn@qdio.ac.cn) |
| Abstract | Chaetoceros is a species-rich diatom genus with broad distribution and plays an important role in global carbon cycle and aquatic ecosystems. However, genomic information of Chaetoceros species is limited, hindering advanced researches on Chaetoceros biodiversity and their differential impact on ecology. In this study, we constructed full-length chloroplast genomes (cpDNAs) for seven Chaetoceros species, including C. costatus, C. curvisetus, C. laevisporus, C. muelleri, C. pseudo-curvisetus, C. socialis, and C. tenuissimus. All of these cpDNAs displayed a typical quadripartite structure with conserved genome arrangement and specific divergence. The sizes of these cpDNAs were similar, ranging from 116,421 to 119,034 bp in size, and these cpDNAs also displayed similar GC content, ranging from 30.26 to 32.10%. Despite extensive synteny conservation, discrete regions showed high variations. Divergence time estimation revealed that the common ancestor of Chaetoceros species, which formed a monophyletic clade at approximately 58 million years ago (Mya), split from Acanthoceras zachariasii at about 70 Mya. The availability of cpDNAs of multiple Chaetoceros species provided valuable reference sequences for studying evolutionary relationship among Chaetoceros species, as well as between Chaetoceros species and other diatom species. |
| Keyword | Chaetoceros species chloroplast genome comparative genomics variation hotspots divergence time |
| DOI | 10.3389/fmicb.2021.742554 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Strategic Priority Research Program of Chinese Academy of Sciences[XDB42000000] ; Chinese Academy of Sciences Pioneer Hundred Talents Program ; Taishan Scholar Project Special Fund ; Qingdao Innovation and Creation Plan (Talent Development Program -5th Annual Pioneer and Innovator Leadership Award)[19-3-2-16-zhc] ; National Key Research and Development Program of China[2017YFC1404300] |
| WOS Research Area | Microbiology |
| WOS Subject | Microbiology |
| WOS ID | WOS:000719849300001 |
| Publisher | FRONTIERS MEDIA SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/177228 |
| Collection | 海洋生态与环境科学重点实验室 |
| Corresponding Author | Chen, Nansheng |
| Affiliation | 1.Huazhong Agr Univ, Coll Life Sci & Technol, Wuhan, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 5.Univ Chinese Acad Sci, Coll Marine Sci, Beijing, Peoples R China 6.Simon Fraser Univ, Dept Mol Biol & Biochem, Burnaby, BC, Canada |
| First Author Affilication | Institute of Oceanology, Chinese Academy of Sciences; Center for Ocean Mega-Science, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute of Oceanology, Chinese Academy of Sciences; Center for Ocean Mega-Science, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Xu, Qing,Cui, Zongmei,Chen, Nansheng. Comparative Analysis of Chloroplast Genomes of Seven Chaetoceros Species Revealed Variation Hotspots and Speciation Time[J]. FRONTIERS IN MICROBIOLOGY,2021,12:16. |
| APA | Xu, Qing,Cui, Zongmei,&Chen, Nansheng.(2021).Comparative Analysis of Chloroplast Genomes of Seven Chaetoceros Species Revealed Variation Hotspots and Speciation Time.FRONTIERS IN MICROBIOLOGY,12,16. |
| MLA | Xu, Qing,et al."Comparative Analysis of Chloroplast Genomes of Seven Chaetoceros Species Revealed Variation Hotspots and Speciation Time".FRONTIERS IN MICROBIOLOGY 12(2021):16. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| cprrr.pdf（15688KB） | 期刊论文 | 出版稿 | 延迟开放 | CC BY-NC-SA | View 2023-7-1后可获取 | |
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