| Literature DB >> 31061536 |
Hong-Tao Li1, Ting-Shuang Yi1, Lian-Ming Gao2, Peng-Fei Ma1, Ting Zhang1, Jun-Bo Yang1, Matthew A Gitzendanner3,4, Peter W Fritsch5, Jie Cai1, Yang Luo2, Hong Wang2, Michelle van der Bank6, Shu-Dong Zhang1, Qing-Feng Wang7, Jian Wang8, Zhi-Rong Zhang1, Chao-Nan Fu2,9, Jing Yang1, Peter M Hollingsworth10, Mark W Chase11,12, Douglas E Soltis3,4,13,14, Pamela S Soltis15,16,17, De-Zhu Li18,19,20.
Abstract
Angiosperms are by far the most species-rich clade of land plants, but their origin and early evolutionary history remain poorly understood. We reconstructed angiosperm phylogeny based on 80 genes from 2,881 plastid genomes representing 85% of extant families and all orders. With a well-resolved plastid tree and 62 fossil calibrations, we dated the origin of the crown angiosperms to the Upper Triassic, with major angiosperm radiations occurring in the Jurassic and Lower Cretaceous. This estimated crown age is substantially earlier than that of unequivocal angiosperm fossils, and the difference is here termed the 'Jurassic angiosperm gap'. Our time-calibrated plastid phylogenomic tree provides a highly relevant framework for future comparative studies of flowering plant evolution.Entities:
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Year: 2019 PMID： 31061536 DOI： 10.1038/s41477-019-0421-0
Source DB: PubMed Journal: Nat Plants ISSN： 2055-0278 Impact factor: 15.793