Rediscovery of Cystoathyrium chinense Ching (Cystopteridaceae): Phylogenetic placement of the critically endangered fern species endemic to China

doi:10.1111/jse.12075

	Rediscovery of Cystoathyrium chinense Ching (Cystopteridaceae): Phylogenetic placement of the critically endangered fern species endemic to China
	Wei, Ran 1; Zhang, Xian-Chun
	2014
发表期刊	JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN	1674-4918
卷号	52 期号:4 页码:450-457
摘要	Cystoathyrium chinense Ching, the sole representative of Cystoathyrium, is a critically endangered species endemic to China with no more than 40 extant individuals. Until now, its systematic position and relationships among leptosporangiate ferns remained unknown. The present study assessed the phylogenetic relationships of Cystoathyrium chinense with potential relatives densely sampled using three chloroplast DNA markers (matK, rbcL, and trnG-R intergenic spacer). Our results support the inclusion of Cystoathyrium in Cystopteris. A hybrid origin hypothesis of Cystoathyrium chinense is neither supported nor rejected by the present study. According to our ancestral area reconstruction analysis, the disjunct distribution of Cystoathyrium and its closely related North American taxa may be attributed to the long-distance dispersal by way of Beringia. Consequently, a new combination (Cystopteris chinensis comb. nov.) is made, and the description is supplemented based on our new observations in the field.
关键词	Cystoathyrium Cystopteridaceae Cystopteris eastern Asian-North American disjunction hybridization hypothesis molecular phylogeny
学科领域	Plant Sciences
DOI	10.1111/jse.12075
收录类别	SCI
语种	英语
WOS关键词	EUPOLYPOD II FERNS ; NORTHERN-HEMISPHERE ; MORPHOLOGICAL EVOLUTION ; MAXIMUM-LIKELIHOOD ; RAPID RADIATION ; GENE-SEQUENCES ; PLASTID GENES ; EASTERN ASIA ; MIXED MODELS ; BIOGEOGRAPHY
WOS研究方向	Plant Sciences
WOS记录号	WOS:000339007600005
出版者	WILEY-BLACKWELL
文献子类	Article
出版地	HOBOKEN
EISSN	1759-6831
资助机构	National Natural Science Foundation of China [31070196, 31170199, 31370260]
作者邮箱	zhangxc@ibcas.ac.cn
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27218
专题	系统与进化植物学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wei, Ran,Zhang, Xian-Chun. Rediscovery of Cystoathyrium chinense Ching (Cystopteridaceae): Phylogenetic placement of the critically endangered fern species endemic to China[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2014,52(4):450-457.
APA	Wei, Ran,&Zhang, Xian-Chun.(2014).Rediscovery of Cystoathyrium chinense Ching (Cystopteridaceae): Phylogenetic placement of the critically endangered fern species endemic to China.JOURNAL OF SYSTEMATICS AND EVOLUTION,52(4),450-457.
MLA	Wei, Ran,et al."Rediscovery of Cystoathyrium chinense Ching (Cystopteridaceae): Phylogenetic placement of the critically endangered fern species endemic to China".JOURNAL OF SYSTEMATICS AND EVOLUTION 52.4(2014):450-457.

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