Journal
NATURE PLANTS
Volume 5, Issue 5, Pages 461-470Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41477-019-0421-0
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Funding
- Strategic Priority Research Programme of the Chinese Academy of Sciences (CAS) [XDB31000000]
- CAS' Large-scale Scientific Facilities [2017-LSF-GBOWS-02]
- KIB's iFlora initiative [2014-4-11]
- National Natural Science Foundation of China [31570333]
- CAS' Youth Innovation Promotion Association [2015321]
- Ten Thousand Talents Programme of China
- Yunling International Highend Experts Programme of Yunnan Province
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Angiosperms are by far the most species-rich Glade 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.
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