Citation:
Jianquan Liu, Charles C Davis, Xiyin Wang, Zhenxiang Xi, Zhiji Qin, Qinfeng Wang, Man Liu, Lanxing Shan, Beibei Jiao, Fanbo Meng, Xingxing Shen, Lei Zhang, Tao Ma, Ying Li, Dafu Ru, Donglei Wang, Leke Lv, Pengchuan Sun, and Yongzhi Yang. 2/24/2020. “Prickly waterlily and rigid hornwort genomes shed light on early angiosperm evolution.” Nature Plants, 2020, Pp. 1-8.
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Abstract:
Angiosperms represent one of the most spectacular terrestrial radiations on the planet 1, but their early diversification and phylogenetic relationships remain uncertain 2, 3, 4, 5. A key reason for this impasse is the paucity of complete genomes representing early-diverging angiosperms. Here, we present high-quality, chromosomal-level genome assemblies of two aquatic species—prickly waterlily (Euryale ferox; Nymphaeales) and the rigid hornwort (Ceratophyllum demersum; Ceratophyllales)—and expand the genomic representation for key sectors of the angiosperm tree of life. We identify multiple independent polyploidization events in each of the five major clades (that is, Nymphaeales, magnoliids, monocots, Ceratophyllales and eudicots). Furthermore, our phylogenomic analyses, which spanned multiple datasets and diverse methods, confirm that Amborella and Nymphaeales are successively sister to all other …See also: 2016-2020
