TY - JOUR
T1 - Resolution of deep angiosperm phylogeny using conserved nuclear genes and estimates of early divergence times
AU - Zeng, Liping
AU - Zhang, Qiang
AU - Sun, Renran
AU - Kong, Hongzhi
AU - Zhang, Ning
AU - Ma, Hong
N1 - Funding Information:
This work was supported by grants from the National Science Foundation of China (91131007 and 31100156) and a Smithsonian Postdoctoral Fellowship to N.Z. We are grateful to Lianming Gao, Dezhu Li, Qingfeng Wang and Xuejun Ge for their assistance in material collection; Ji Qi for help in transcriptome sequence assembly; Haifeng Wang for assistance in sequence analysis; Liang Zhao, Sangtae Kim and Yi Hu for providing plant photographs; Peter K. Endress, Ji Yang, Blair Hedges and Michael Axtell for valuable comments on the manuscript; and Michael Moore for sharing the alignments of plastid genes with us.
Publisher Copyright:
© 2014 Macmillan Publishers Limited.
PY - 2014
Y1 - 2014
N2 - Angiosperms are the most successful plants and support human livelihood and ecosystems. Angiosperm phylogeny is the foundation of studies of gene function and phenotypic evolution, divergence time estimation and biogeography. The relationship of the five divergent groups of the Mesangiospermae (∼99.95% of extant angiosperms) remains uncertain, with multiple hypotheses reported in the literature. Here transcriptome data sets are obtained from 26 species lacking sequenced genomes, representing each of the five groups: eudicots, monocots, magnoliids, Chloranthaceae and Ceratophyllaceae. Phylogenetic analyses using 59 carefully selected low-copy nuclear genes resulted in highly supported relationships: sisterhood of eudicots and a clade containing Chloranthaceae and Ceratophyllaceae, with magnoliids being the next sister group, followed by monocots. Our topology allows a re-examination of the evolutionary patterns of 110 morphological characters. The molecular clock estimates of Mesangiospermae diversification during the late to middle Jurassic correspond well to the origins of some insects, which may have been a factor facilitating early angiosperm radiation.
AB - Angiosperms are the most successful plants and support human livelihood and ecosystems. Angiosperm phylogeny is the foundation of studies of gene function and phenotypic evolution, divergence time estimation and biogeography. The relationship of the five divergent groups of the Mesangiospermae (∼99.95% of extant angiosperms) remains uncertain, with multiple hypotheses reported in the literature. Here transcriptome data sets are obtained from 26 species lacking sequenced genomes, representing each of the five groups: eudicots, monocots, magnoliids, Chloranthaceae and Ceratophyllaceae. Phylogenetic analyses using 59 carefully selected low-copy nuclear genes resulted in highly supported relationships: sisterhood of eudicots and a clade containing Chloranthaceae and Ceratophyllaceae, with magnoliids being the next sister group, followed by monocots. Our topology allows a re-examination of the evolutionary patterns of 110 morphological characters. The molecular clock estimates of Mesangiospermae diversification during the late to middle Jurassic correspond well to the origins of some insects, which may have been a factor facilitating early angiosperm radiation.
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U2 - 10.1038/ncomms5956
DO - 10.1038/ncomms5956
M3 - Article
C2 - 25249442
AN - SCOPUS:84919900743
SN - 2041-1723
VL - 5
JO - Nature communications
JF - Nature communications
M1 - 4956
ER -