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Reassessment of the species Stigeoclonium polyrhizum (Chaetophoraceae, Chaetophorales) based on morphological and molecular data

文献类型：期刊论文

作者Liu, Benwen1,2; Liu, Xudong1,2; Wang, Qinghua1,2; Hu, Zhengyu3; Liu, Guoxiang1
刊名PHYTOTAXA
出版日期2018-01-05
卷号333期号:1页码:86-98
关键词Chaetophora draparnaldioides Morphology Pyrenoid Polyphyly Stigeoclonium longipilum
ISSN号1179-3155
DOI10.11646/phytotaxa.333.1.6
通讯作者Liu, Guoxiang(liugx@ihb.ac.cn)
英文摘要Four specimens of Stigeoclonium spp., sampled in China between 2015 and 2016, were identified as the species Stigeoclonium polyrhizum (Chaetophoraceae, Chaetophorales) due to their unique morphology. A large part of the main filament and branches was tightly enclosed by numerous rhizoidal branches, which extended downward to the base of the plant to form an expanded holdfast. S. polyrhizum has previously been regarded as a synonym of S. longipilum or other related species by most phycologists. Therefore, a reassessment of S. polyrhizum based on morphological and molecular data was conducted. Rhizoidal branch development of S. polyrhizum was also described, showing the abundant rhizoidal branches present from the juvenile stage to the mature stage under controlled culture conditions. Phylogenetic evidence, using nuclear-encoded SSU rDNA data, clearly revealed that the Chaetophoraceae diverged into two well-supported sister clades: the Chaetophoraclade and the Fritschiella-clade. S. polyrhizum was included in the Fritschiella-clade instead of the Chaetophora-clade where Chaetophora draparnaldioides (S. longipilum) was found. The morphological and molecular data unambiguously show that S. polyrhizum is a valid species rather than a synonym of S. longipilum or other related species. Thylakoid bands appressed to the periphery of the pyrenoid matrix of S. polyrhizum was also described.
WOS关键词PHYLOGENETIC ANALYSIS ; CHLOROPHYCEAE ; DRAPARNALDIA
资助项目National Natural Science Foundation of China[31670202] ; China Agriculture Research System[CARS-50]
WOS研究方向Plant Sciences
语种英语
WOS记录号WOS:000419733100006
出版者MAGNOLIA PRESS
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Agriculture Research System ; China Agriculture Research System ; China Agriculture Research System ; China Agriculture Research System ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Agriculture Research System ; China Agriculture Research System ; China Agriculture Research System ; China Agriculture Research System ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Agriculture Research System ; China Agriculture Research System ; China Agriculture Research System ; China Agriculture Research System ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Agriculture Research System ; China Agriculture Research System ; China Agriculture Research System ; China Agriculture Research System
源URL[http://ir.ihb.ac.cn/handle/342005/30080]  
专题水生生物研究所_藻类生物学及应用研究中心_期刊论文
通讯作者Liu, Guoxiang
作者单位1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Hubei, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Benwen,Liu, Xudong,Wang, Qinghua,et al. Reassessment of the species Stigeoclonium polyrhizum (Chaetophoraceae, Chaetophorales) based on morphological and molecular data[J]. PHYTOTAXA,2018,333(1):86-98.
APA Liu, Benwen,Liu, Xudong,Wang, Qinghua,Hu, Zhengyu,&Liu, Guoxiang.(2018).Reassessment of the species Stigeoclonium polyrhizum (Chaetophoraceae, Chaetophorales) based on morphological and molecular data.PHYTOTAXA,333(1),86-98.
MLA Liu, Benwen,et al."Reassessment of the species Stigeoclonium polyrhizum (Chaetophoraceae, Chaetophorales) based on morphological and molecular data".PHYTOTAXA 333.1(2018):86-98.

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来源：水生生物研究所

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