Organellar genome comparisons of Sargassum polycystum and S. plagiophyllum (Fucales, Phaeophyceae) with other Sargassum species

doi:10.1186/s12864-022-08862-5

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	Organellar genome comparisons of Sargassum polycystum and S. plagiophyllum (Fucales, Phaeophyceae) with other Sargassum species
	Zhang, Shuangshuang 2,3,4; Liang, Yanshuo 2,3,4; Zhang, Jie 3,4; Draisma, Stefano G. A.1; Duan, Delin 3,4
刊名	BMC GENOMICS
	2022-09-02
卷号	23 期号:1 页码:12
关键词	Sargassum polycystum Sargassum plagiophyllum Mitochondrial genome Chloroplast genome Phylogeny
ISSN号	1471-2164
DOI	10.1186/s12864-022-08862-5
通讯作者	Duan, Delin(dlduan@qdio.ac.cn)
英文摘要	Background Sargassum polycystum C. Agardh and Sargassum plagiophyllum C. Agardh are inhabitants of tropical coastal areas, their populations are negatively influenced by global warming and marine environment changes. The mitochondrial and chloroplast genomes of these species have not been sequenced. Results The mitochondrial genomes of S. polycystum and S. plagiophyllum were 34,825 bp and 34,862 bp, respectively, and their corresponding chloroplast genomes were 124,493 bp and 124,536 bp, respectively. The mitochondrial and chloroplast genomes of these species share conserved synteny, sequence regions and gene number when compared with the organellar genomes of other Sargassum species. Based on sequence analysis of 35 protein-coding genes, we deduced that S. polycystum and S. plagiophyllum were closely related with S. ilicifolium; these species diverged approximately 0.3 million years ago (Ma; 0.1-0.53 Ma) during the Pleistocene period (0.01-2.59 Ma). Rates of synonymous and non-synonymous substitutions in the mitochondrial genome of the Sargassum genus were 3 times higher than those in the chloroplast genome. In the mitochondrial genome, rpl5, rpl31 and rps11 had the highest synonymous substitution rates. In the chloroplast genome, psaE, rpl14 and rpl27 had the highest synonymous substitution rates. Conclusions Phylogenetic analysis confirms the close relationship between the two sequenced species and S. ilicifolium. Both synonymous and non-synonymous substitution rates show significant divergence between the group of mitochondrial genomes versus the group of chloroplast genomes. The deciphering of complete mitochondrial and chloroplast genomes is significant as it advances our understanding of the evolutionary and phylogenetic relationships between species of brown seaweeds.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB42030203] ; National Natural Science Foundation of China[31900279] ; Shandong Provincial Natural Science Foundation[ZR2019BC024] ; Thailand Research Fund[RDG6130002]
WOS研究方向	Biotechnology & Applied Microbiology ; Genetics & Heredity
语种	英语
出版者	BMC
WOS记录号	WOS:000848894900001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/180846]
专题	海洋研究所_实验海洋生物学重点实验室
通讯作者	Duan, Delin
作者单位	1.Prince Songkla Univ, Fac Sci, Excellence Ctr Biodivers Peninsular Thailand, Hat Yai 90110, Songkhla, Thailand 2.Univ Chinese Acad Sci, Beijing 100094, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Inst Oceanol, CAS & Shandong Prov Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Shuangshuang,Liang, Yanshuo,Zhang, Jie,et al. Organellar genome comparisons of Sargassum polycystum and S. plagiophyllum (Fucales, Phaeophyceae) with other Sargassum species[J]. BMC GENOMICS,2022,23(1):12.
APA	Zhang, Shuangshuang,Liang, Yanshuo,Zhang, Jie,Draisma, Stefano G. A.,&Duan, Delin.(2022).Organellar genome comparisons of Sargassum polycystum and S. plagiophyllum (Fucales, Phaeophyceae) with other Sargassum species.BMC GENOMICS,23(1),12.
MLA	Zhang, Shuangshuang,et al."Organellar genome comparisons of Sargassum polycystum and S. plagiophyllum (Fucales, Phaeophyceae) with other Sargassum species".BMC GENOMICS 23.1(2022):12.