Phylogenetic placement of the enigmatic fern genus Trichoneuron informs on the infra-familial relationship of Dryopteridaceae

doi:10.1007/s00606-015-1265-3

CORC > 武汉植物园 > 中国科学院武汉植物园

	Phylogenetic placement of the enigmatic fern genus Trichoneuron informs on the infra-familial relationship of Dryopteridaceae
	Liu, Hong-Mei 1,2; Zhang, Xian-Chun 3; Wang, Mei-Ping 1,2; Shang, Hui 4; Zhou, Shi-Liang 3; Yan, Yue-Hong 4; Wei, Xue-Ping 3; Xu, Wen-Bin 5; Schneider, Harald 6
刊名	PLANT SYSTEMATICS AND EVOLUTION
	2016-03-01
卷号	302 期号:3 页码:319-332
关键词	Disjunct distribution Lastreopsis Leaf indumentum Paraphyletic Polystichopsis Rachis-costa architecture Subfamily
ISSN号	0378-2697
DOI	10.1007/s00606-015-1265-3
英文摘要	The taxonomic status and phylogenetic placement of the monotypic genus Trichoneuron is studied using DNA sequences of three plastid-coding genes. Trichoneuron was originally assigned to Thelypteridaceae but has been considered to be a synonym of Lastreopsis in recent treatments. In this study, the proposed relationship of Trichoneuron to Lastreopsis was tested using a comprehensive taxa sampling of Dryopteridaceae. Our results strongly support the recognition of Trichoneuron as a distinct genus belonging to Dryopteridaceae. Trichoneuron does not group together with Lastreopsis. Instead the genus was found to be sister to the Neotropical genus Polystichopsis. This sister relationship is supported by the occurrence of long pluricellular hairs attached to the rachis of both genera. The morphological distinction of Trichoneuron from Lastreopsis is backed by the structure of the adaxial groove of rachis-costa junction and the hairs at abaxial side of leaf axes. The Polystichopsis-Trichoneuron clade was found to form the sister clade to an entirely Neotropical clade comprising Polybotrya and its relatives. The new subfamily Polybotryoideae is introduced based on the presented observations. In turn, the newly recovered sister relationship between Polystichopsis and Trichoneuron provides evidence for geographic disjunctions involving the Caribbean islands and the Indo-Burma biodiversity hotspot.
资助项目	National Natural Science Foundation of China[31300183] ; Scientific Research Project of Shenzhen Urban Management Bureau[201312] ; state-sponsored overseas academic visiting scholarship program[201308440224]
WOS研究方向	Plant Sciences ; Evolutionary Biology
语种	英语
出版者	SPRINGER WIEN
WOS记录号	WOS:000372906100007
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/106]
专题	中国科学院武汉植物园
通讯作者	Liu, Hong-Mei
作者单位	1.Fairylake Bot Garden, Shenzhen Key Lab Southern Subtrop Plant Div, Shenzhen, Peoples R China 2.Chinese Acad Sci, Shenzhen 518004, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 4.Chinese Acad Sci, Shanghai Chenshan Plant Sci Res Ctr, Chenshan Bot Garden, Shanghai 201602, Peoples R China 5.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China 6.Nat Hist Museum, Dept Life Sci, London SW7 5BD, England
推荐引用方式 GB/T 7714	Liu, Hong-Mei,Zhang, Xian-Chun,Wang, Mei-Ping,et al. Phylogenetic placement of the enigmatic fern genus Trichoneuron informs on the infra-familial relationship of Dryopteridaceae[J]. PLANT SYSTEMATICS AND EVOLUTION,2016,302(3):319-332.
APA	Liu, Hong-Mei.,Zhang, Xian-Chun.,Wang, Mei-Ping.,Shang, Hui.,Zhou, Shi-Liang.,...&Schneider, Harald.(2016).Phylogenetic placement of the enigmatic fern genus Trichoneuron informs on the infra-familial relationship of Dryopteridaceae.PLANT SYSTEMATICS AND EVOLUTION,302(3),319-332.
MLA	Liu, Hong-Mei,et al."Phylogenetic placement of the enigmatic fern genus Trichoneuron informs on the infra-familial relationship of Dryopteridaceae".PLANT SYSTEMATICS AND EVOLUTION 302.3(2016):319-332.