Unique Jurassic Ovaries Shed a New Light on the Nature of Carpels

doi:10.3390/plants13162239

NIGPAS OpenIR

	Unique Jurassic Ovaries Shed a New Light on the Nature of Carpels
通讯作者	Wang, Xin([email protected])
	Fu, Qiang1,2,3 ; Sun, Jie 4; Zheng, Shaolin 5,6; Wang, Xin1,2
	2024-08-01
发表期刊	PLANTS-BASEL
ISSN	2223-7747
卷号	13 期号:16 页码:11
摘要	Enclosed ovules are a reproductive feature restricted to angiosperms. Although this feature can be used as a criterion for identifying fossil angiosperms, how ovules are enclosed and the nature of the placenta are still foci of debates. A reason underlying these controversies is the lack of reproductive organ fossils shedding light on these issues. These controversies hinder a clear understanding of angiosperm evolution and systematics. Here, we report a new fossil ovary, Xenofructus dabuensis gen. et sp. nov, from the Middle Jurassic of Liaoning, China. Our fossil clearly demonstrates the existence of ovules in Xenofructus that has a free central placentation. This new feature implies that a placenta in angiosperm gynoecia is homologous to an ovule/seed-bearing axis, and free central placentation is one of the early developed placentations. This discovery is apparently at odds with the current understanding of placentation and its evolution. Apparently, the understanding of angiosperms and their gynoecia should be updated with newly available palaeobotanical data.
关键词	Xenofructus fruits ovary free central placentation evolution angiosperms Jurassic
DOI	10.3390/plants13162239
收录类别	SCI
语种	英语
关键词[WOS]	YIXIAN FORMATION ; EARLY ANGIOSPERM ; SEED PLANT ; SP NOV. ; EVOLUTION ; ORIGIN ; GEN. ; ARCHAEFRUCTUS ; ARCHAEANTHUS ; INSIGHTS
资助项目	National Natural Science Foundation of China ; [42288201]
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:001306732400001
项目资助者	National Natural Science Foundation of China
出版者	MDPI
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44211
专题	中国科学院南京地质古生物研究所
通讯作者	Wang, Xin
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, CAS Ctr Excellence Life & Paleoenvironment, Nanjing 210008, Peoples R China 3.Univ Chinese Acad Sci UCAS, Nanjing 211135, Peoples R China 4.Northwest Univ, Dept Geol, Shaanxi Key Lab Early Life & Environm, State Key Lab Continental Dynam, Xian 710069, Peoples R China 5.Minist Natl Land & Resources, Shenyang Ctr Geol Survey, Shenyang 110034, Peoples R China 6.Minist Natl Land & Resources, Inst Geol & Mineral Resources, Shenyang 110034, Peoples R China
第一作者单位	中国科学院南京地质古生物研究所
通讯作者单位	中国科学院南京地质古生物研究所
推荐引用方式 GB/T 7714	Fu, Qiang,Sun, Jie,Zheng, Shaolin,et al. Unique Jurassic Ovaries Shed a New Light on the Nature of Carpels[J]. PLANTS-BASEL,2024,13(16):11.
APA	Fu, Qiang,Sun, Jie,Zheng, Shaolin,&Wang, Xin.(2024).Unique Jurassic Ovaries Shed a New Light on the Nature of Carpels.PLANTS-BASEL,13(16),11.
MLA	Fu, Qiang,et al."Unique Jurassic Ovaries Shed a New Light on the Nature of Carpels".PLANTS-BASEL 13.16(2024):11.