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Mesozoic cupules and the origin of the angiosperm second integument

文献类型：期刊论文

作者Shi, Gongle5,6; Herrera, Fabiany4; Herendeen, Patrick S.4; Clark, Elizabeth G.1; Crane, Peter R.2,3; Shi, Gongle（史恭乐）
刊名NATURE
出版日期2021-05-26
页码20
ISSN号0028-0836
DOI10.1038/s41586-021-03598-w
通讯作者Shi, Gongle(glshi@nigpas.ac.cn)
英文摘要The second integument of the angiosperm ovule is unique among seed plants, with developmental genetics that are distinct from those of the inner integument(1). Understanding how the second integument should be compared to structures in other seed plants is therefore crucial to resolving the long-standing question of the origin of angiosperms(2-6). Attention has focused on several extinct plants with recurved cupules that are reminiscent of the anatropous organization of the basic bitegmic ovules of angiosperms(1-6), but interpretations have been hampered by inadequate information on the relevant fossils. Here we describe abundant exceptionally well-preserved recurved cupules from a newly discovered silicified peat dating to the Early Cretaceous epoch (around 125.6 million years ago) in Inner Mongolia, China. The new material, combined with re-examination of potentially related fossils, indicates that the recurved cupules of several groups of Mesozoic plants are all fundamentally comparable, and that their structure is consistent with the recurved form and development of the second integument in the bitegmic anatropous ovules of angiosperms. Recognition of these angiosperm relatives (angiophytes) provides a partial answer to the question of angiosperm origins, will help to focus future work on seed plant phylogenetics and has important implications for ideas on the origin of the angiosperm carpel.
WOS关键词SEED PLANTS ; CORYSTOSPERMALES ; PTERIDOSPERMS ; EVOLUTION ; OVULES
资助项目Youth Innovation Promotion Association of the Chinese Academy of Sciences[2017359] ; US National Science Foundation[DEB-1748286] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41790454] ; Oak Spring Garden Foundation
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000654970600002
出版者NATURE RESEARCH
资助机构Youth Innovation Promotion Association of the Chinese Academy of Sciences ; US National Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Oak Spring Garden Foundation
源URL[http://ir.nigpas.ac.cn/handle/332004/38141]  
专题中国科学院南京地质古生物研究所
通讯作者Shi, Gongle; Shi, Gongle（史恭乐）
作者单位1.Duke Univ, Dept Biol, Durham, NC USA
2.Yale Univ, Yale Sch Environm, New Haven, CT USA
3.Oak Spring Garden Fdn, Upperville, VA USA
4.Chicago Bot Garden, Glencoe, IL USA
5.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing, Peoples R China
6.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing, Peoples R China
推荐引用方式
GB/T 7714		 Shi, Gongle,Herrera, Fabiany,Herendeen, Patrick S.,et al. Mesozoic cupules and the origin of the angiosperm second integument[J]. NATURE,2021:20.
APA Shi, Gongle,Herrera, Fabiany,Herendeen, Patrick S.,Clark, Elizabeth G.,Crane, Peter R.,&Shi, Gongle.(2021).Mesozoic cupules and the origin of the angiosperm second integument.NATURE,20.
MLA Shi, Gongle,et al."Mesozoic cupules and the origin of the angiosperm second integument".NATURE (2021):20.

入库方式： OAI收割

来源：南京地质古生物研究所

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