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Mitochondrial genome sequences uncover evolutionary relationships of two Sargassum subgenera, Bactrophycus and Sargassum
Liu, Feng1,2; Li, Xiaodong3; Che, Zhiwei4
2017-12-01
Source PublicationJOURNAL OF APPLIED PHYCOLOGY
Volume29Issue:6Pages:3261-3270
SubtypeArticle
AbstractTo elucidate the evolution of mitochondrial genomic diversity between two Sargassum subgenera, Bactrophycus and Sargassum, we sequenced four Sargassum genomes in subgenus Sargassum, including Sargassum polycystum C. Agardh, S. spinuligerum Sonder, S. ilicifolium (Turner) C. Agardh, and S. aquifolium (Turner) C. Agardh. Mitogenome sizes of these four species ranging from 34,761 to 34,925 bp are longer than those in subgenus Bactrophycus (34,606 to 34,748 bp), and the content of non-coding regions (4.68-5.25%) is higher than that in Bactrophycus (4.29-4.65%). The evolutionary traits of single mitochondrial genes show apparent inconsistency between the two Sargassum subgenera. Mitogenome sequence identities are from 92.4 to 99.1% in subgenus Sargassum and from 87.6 to 92.7% in subgenus Bactrophycus. Based on the whole mitogenome dataset, ten Sargassum species are clustered into two subclades representing two subgenera, Sargassum and Bactrophycus. Only four individual single-gene phylogenies (cox2, nad6, rpl5, and rps3) show that the ten Sargassum species could be strongly clustered and divided into two subgenera with high values (ML/NJ/BI ae70%). The study indicates that the two subgenera, Sargassum and Bactrophycus, are distinct evolutionary entities, and mitogenomic traits provide novel insights into Sargassum deep-level relationships.
KeywordMitochondrial Genome Sargassum Bactrophycus Phaeophyceae Sargassaceae Evolutionary Relationship
DOI10.1007/s10811-017-1143-1
Indexed BySCI
Language英语
WOS IDWOS:000416446400050
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/143288
Collection实验海洋生物学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
3.Ocean Univ China, Coll Marine Life Sci, Qingdao, Peoples R China
4.State Ocean Adm, Haikou Marine Environm Monitoring Cent Stn, Haikou, Hainan, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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Liu, Feng,Li, Xiaodong,Che, Zhiwei. Mitochondrial genome sequences uncover evolutionary relationships of two Sargassum subgenera, Bactrophycus and Sargassum[J]. JOURNAL OF APPLIED PHYCOLOGY,2017,29(6):3261-3270.
APA Liu, Feng,Li, Xiaodong,&Che, Zhiwei.(2017).Mitochondrial genome sequences uncover evolutionary relationships of two Sargassum subgenera, Bactrophycus and Sargassum.JOURNAL OF APPLIED PHYCOLOGY,29(6),3261-3270.
MLA Liu, Feng,et al."Mitochondrial genome sequences uncover evolutionary relationships of two Sargassum subgenera, Bactrophycus and Sargassum".JOURNAL OF APPLIED PHYCOLOGY 29.6(2017):3261-3270.
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