A molecular phylogeny of selligueoid ferns (Polypodiaceae): Implications for a natural delimitation despite homoplasy and rapid radiation

doi:10.12705/672.1

	A molecular phylogeny of selligueoid ferns (Polypodiaceae): Implications for a natural delimitation despite homoplasy and rapid radiation
	He, Lijuan 1; Schneider, Harald 2,3; Hovenkamp, Peter 4; Marquardt, Jeannine 2; Wei, Ran ; Wei, Xueping 5; Zhang, Xianchun; Xiang, Qiaoping
	2018
发表期刊	TAXON
ISSN	0040-0262
卷号	67 期号:2 页码:237-249
摘要	Homoplasy, autapomorphy and rapid radiation have frequently been discussed as the main causes of instable generic classifications of plants including ferns. In this study, we explore the natural generic classification for selligueoid ferns by investigating the phylogenetic relationships among almost all its previously recognized segregates. We compare the phylogenies that resulted from two datasets. Dataset 1 comprises a broad taxonomic sampling of fifty-one species of selligueoid ferns. Phylogenetic analysis of this dataset revealed a notable long branch followed by a polytomy recovering three core clades of selligueoid ferns. Only one of the core clades corresponds to the traditional generic concept of Arthromeris. Dataset 2 includes fewer species but a broader sample of six plastid DNA markers. However, the results of this dataset show that the increase of informative molecular characters still did not provide sufficient evidence to resolve the polytomy. The long branches together with a consistent backbone polytomy support a rapid radiation in the selligueoid ferns. The majority of morphological characters were recovered as homoplastic, which hampers the identification of segregates with unambiguous diagnostic characters. Considering morphological characters and our molecular phylogeny, a single genus Selliguea s.l., which includes all selligueoid species, is proposed here to achieve taxonomic stability in this group.
关键词	generic classification homoplasy rapid radiation selligueoid fern
学科领域	Plant Sciences ; Evolutionary Biology
DOI	10.12705/672.1
收录类别	SCI
语种	英语
WOS关键词	EUPOLYPOD II FERNS ; MALAYSIAN POLYPODIACEAE ; GENERIC DELIMITATION ; CHARACTER EVOLUTION ; CHEILANTHOID FERNS ; CHLOROPLAST RBCL ; DRYNARIOID FERNS ; SEQUENCE DATA ; CLASSIFICATION ; GENUS
WOS记录号	WOS:000433040700001
出版者	INT ASSOC PLANT TAXONOMY-IAPT
文献子类	Article
出版地	BRATISLAVA
EISSN	1996-8175
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31370260, 31470317] ; External Cooperation Program of Bureau of International Co-operation Chinese Academy of Sciences [GJHZ201321] ; Xiamen Science and Technology Project [3502Z20172017]
作者邮箱	zhangxc@ibcas.ac.cn ; qpxiang@ibcas.ac.cn
引用统计	被引频次：10[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/2S10CLM1/20607
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, Peoples R China 2.Xiamen Overseas Chinese Subtrop Plant Intro Garde, Xiamen, Peoples R China 3.Nat Hist Museum, Dept Life Sci, London, England 4.Chinese Acad Sci, Xishuangbanna Bot Garden, Mengla, Peoples R China 5.Nat Biodivers Ctr, Leiden, Netherlands 6.Chinese Acad Med Sci, Peking Union Med Coll, Inst Med Plant Dev,Minist Educ, Key Lab Bioact Subst & Resources Utilizat Chinese, Beijing, Peoples R China
推荐引用方式 GB/T 7714	He, Lijuan,Schneider, Harald,Hovenkamp, Peter,et al. A molecular phylogeny of selligueoid ferns (Polypodiaceae): Implications for a natural delimitation despite homoplasy and rapid radiation[J]. TAXON,2018,67(2):237-249.
APA	He, Lijuan.,Schneider, Harald.,Hovenkamp, Peter.,Marquardt, Jeannine.,Wei, Ran.,...&Xiang, Qiaoping.(2018).A molecular phylogeny of selligueoid ferns (Polypodiaceae): Implications for a natural delimitation despite homoplasy and rapid radiation.TAXON,67(2),237-249.
MLA	He, Lijuan,et al."A molecular phylogeny of selligueoid ferns (Polypodiaceae): Implications for a natural delimitation despite homoplasy and rapid radiation".TAXON 67.2(2018):237-249.

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