IMR OpenIR
Accelerated evolution of early angiosperms: Evidence from ranunculalean phylogeny by integrating living and fossil data
Alternative TitleAccelerated evolution of early angiosperms: evidence from ranunculalean phylogeny by integrating living and fossil data
Wang Wei1; Dilcher David L2; Sun Ge2; Wang HongShan2; Chen ZhiDuan1
2016
Source PublicationJOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN1674-4918
Volume54Issue:4Pages:336-341
AbstractThe new discovery of angiosperm remains in the Jehol Biota of northeastern China contributes to our understanding of the origin and early evolution of flowering plants. The earliest eudicot genus with reproductive organs, Leefructus, was recently documented from the Lower Cretaceous Yixian Formation at 125.8-123.0 Ma, and was reconsidered to be close to the extant family Ranunculaceae based on gross morphology. However, this hypothesis has not been tested using a cladistic approach. To determine the possible allies of Leefructus within extant eudicots, we constructed a 66 morphological data matrix. Molecular and morphological analyses of extant Ranunculales combined with the fossil suggest that it has an affinity with the Ranunculaceae. The earliest fossil record of the eudicots is 127-125 Ma based on tricolpate pollen grains. Thus, we suggest a hypothesis that the basal eudicots might have experienced an accelerated evolution and diversification during the latest Barremian and earliest Aptian, leading to the stem groups of at least six extant families or lineages, 10-15 Myr earlier than currently documented. Angiosperms have undergone multiple uneven pulses of radiation since their origin. Many key character innovations occurred in different stages that could have triggered those radiations in concert with various biotic and abiotic factors.
Other AbstractThe new discovery of angiosperm remains in the Jehol Biota of northeastern China contributes to our understanding of the origin and early evolution of flowering plants. The earliest eudicot genus with reproductive organs, Leefructus, was recently documented from the Lower Cretaceous Yixian Formation at 125.8-123.0 Ma, and was reconsidered to be close to the extant family Ranunculaceae based on gross morphology. However, this hypothesis has not been tested using a cladistic approach. To determine the possible allies of Leefructus within extant eudicots, we constructed a 66 morphological data matrix. Molecular and morphological analyses of extant Ranunculales combined with the fossil suggest that it has an affinity with the Ranunculaceae. The earliest fossil record of the eudicots is 127-125 Ma based on tricolpate pollen grains. Thus, we suggest a hypothesis that the basal eudicots might have experienced an accelerated evolution and diversification during the latest Barremian and earliest Aptian, leading to the stem groups of at least six extant families or lineages, 10-15 Myr earlier than currently documented. Angiosperms have undergone multiple uneven pulses of radiation since their origin. Many key character innovations occurred in different stages that could have triggered those radiations in concert with various biotic and abiotic factors.
KeywordSP NOV. YIXIAN FORMATION CRATO FORMATION POTOMAC GROUP GEN. AGE MITOCHONDRIAL DIVERSIFICATION RADIATION SEQUENCES angiosperms Cretaceous diversification paleobotany phylogeny Ranunculales
Indexed ByCSCD
Language英语
Funding Project[National Basic Research Program of China] ; [National Natural Science Foundation of China] ; [Youth Innovation Promotion Association Foundation of CAS]
CSCD IDCSCD:5757448
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/150827
Collection中国科学院金属研究所
Affiliation1.中国科学院
2.中国科学院金属研究所
3.吉林大学
4.印第安纳大学
5.University Florida, Florida Museum Nat Hist, Gainesville, FL 32611 USA
Recommended Citation
GB/T 7714
Wang Wei,Dilcher David L,Sun Ge,et al. Accelerated evolution of early angiosperms: Evidence from ranunculalean phylogeny by integrating living and fossil data[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2016,54(4):336-341.
APA Wang Wei,Dilcher David L,Sun Ge,Wang HongShan,&Chen ZhiDuan.(2016).Accelerated evolution of early angiosperms: Evidence from ranunculalean phylogeny by integrating living and fossil data.JOURNAL OF SYSTEMATICS AND EVOLUTION,54(4),336-341.
MLA Wang Wei,et al."Accelerated evolution of early angiosperms: Evidence from ranunculalean phylogeny by integrating living and fossil data".JOURNAL OF SYSTEMATICS AND EVOLUTION 54.4(2016):336-341.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang Wei]'s Articles
[Dilcher David L]'s Articles
[Sun Ge]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang Wei]'s Articles
[Dilcher David L]'s Articles
[Sun Ge]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang Wei]'s Articles
[Dilcher David L]'s Articles
[Sun Ge]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.