作者
Zhenxiang Xi, Liang Liu, Joshua S. Rest, Charles C. Davis
发表日期
2014
期刊
Systematic Biology
卷号
63
期号
6
页码范围
919–932
出版商
Oxford University Press
简介
The molecular era has fundamentally reshaped our knowledge of the evolution and diversification of angiosperms. One outstanding question is the phylogenetic placement of Amborella trichopoda Baill., commonly thought to represent the first lineage of extant angiosperms. Here, we leverage publicly available data and provide a broad coalescent-based species tree estimation of 45 seed plants. By incorporating 310 nuclear genes, our coalescent analyses strongly support a clade containing Amborella plus water lilies (i.e., Nymphaeales) that is sister to all other angiosperms across different nucleotide rate partitions. Our results also show that commonly applied concatenation methods produce strongly supported, but incongruent placements of Amborella: slow-evolving nucleotide sites corroborate results from coalescent analyses, whereas fast-evolving sites place Amborella alone as the first lineage of extant …
学术搜索中的文章
Z Xi, L Liu, JS Rest, CC Davis - Systematic biology, 2014