Protognetaceae: A new gnetoid macrofossil family from the Jurassic of northeastern China

doi:10.1104/pp.17.00418

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	Protognetaceae: A new gnetoid macrofossil family from the Jurassic of northeastern China
	Yang, Yong ; Xie, Lei 3; Ferguson, David K.
刊名	PERSPECTIVES IN PLANT ECOLOGY EVOLUTION AND SYSTEMATICS
	2017
卷号	28 页码:67-77
关键词	China Daohugou Evolution Gnetophytes Jurassic Molecular clock
ISSN号	1433-8319
DOI	10.1104/pp.17.00418
文献子类	Article
英文摘要	The divergence of the gnetophytes has been controversial due to the lack of appropriate fossils to calibrate the phylogenetic trees. Here we describe a new macrofossil family, Protognetaceae Y. Yang, L. Xie et D. K. Ferguson, fam. nov., from the Middle Jurassic, consisting of only Protognetum jurassicum Y. Yang, L. Xie et D. K. Ferguson, gen. et sp. nov. This monotypic family displays transitional morphology between Ephedraceae and Gnetaceae. It is similar to the Ephedraceae in the longitudinally striated twigs, the linear parallel-veined leaves decussate at the swollen nodes, and to the Gnetaceae in the lax female spikes and a few sessile female reproductive units (FRUs) verticillately arranged at the nodes. These FRUs are subtended by leaf-like linear bracts, and have an apical short and straight tube. The Protognetaceae provide new evidence to understand the early evolution of the gnetophytes. We reconstructed a phylogeny of gymnosperms based on six DNA markers, and dated the divergence of the gnetophytes with calibration using our new macrofossil. We found that the crown age of the gnetophytes is in the Middle Triassic, the age of modern Ephedra is in the Neogene, and modern Gnetum is dated back to the K/T boundary.
学科主题	Plant Sciences
出版地	JENA
WOS关键词	SEED-PLANT PHYLOGENY ; CRETACEOUS YIXIAN FORMATION ; SP-NOV ; EXTANT GYMNOSPERMS ; EPHEDRA GNETALES ; CHLOROPLAST DNA ; GNETUM GNETALES ; HIGH-THROUGHPUT ; INNER-MONGOLIA ; NORTH-AMERICA
语种	英语
出版者	ELSEVIER GMBH, URBAN & FISCHER VERLAG
WOS记录号	WOS:000406865900039
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31270238, 31470301, J1310002] ; Scientific Research Project of Shenzhen Urban Administration [201519] ; Major Technical Research Project of the Innovation of Science and Technology Commission of Shenzhen [JSGG20140515164852417]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/22214]
专题	系统与进化植物学国家重点实验室
作者单位	1.Beijing Forestry Univ, Coll Nat Conservat, Beijing 100083, Peoples R China 2.Ferguson, David K.] Univ Vienna, Dept Paleontol, A-1090 Vienna, Austria 3.Chinese Acad Sci, State Key Lab Systemat & Evolutionary Bot, Inst Bot, 20 Nanxincun, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yong,Xie, Lei,Ferguson, David K.. Protognetaceae: A new gnetoid macrofossil family from the Jurassic of northeastern China[J]. PERSPECTIVES IN PLANT ECOLOGY EVOLUTION AND SYSTEMATICS,2017,28:67-77.
APA	Yang, Yong,Xie, Lei,&Ferguson, David K..(2017).Protognetaceae: A new gnetoid macrofossil family from the Jurassic of northeastern China.PERSPECTIVES IN PLANT ECOLOGY EVOLUTION AND SYSTEMATICS,28,67-77.
MLA	Yang, Yong,et al."Protognetaceae: A new gnetoid macrofossil family from the Jurassic of northeastern China".PERSPECTIVES IN PLANT ECOLOGY EVOLUTION AND SYSTEMATICS 28(2017):67-77.