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Plastid phylogenomics improve phylogenetic resolution in the Lauraceae
Song, Yu1,2,3; Yu, Wen-Bin1,2,3; Tan, Yun-Hong1,2,3; Jin, Jian-Jun4; Wang, Bo1,2; Yang, Jun-Bo4; Liu, Bing5,6; Corlett, Richard T.1,2,3
Corresponding AuthorYang, Jun-Bo( ; Liu, Bing( ; Corlett, Richard T.(
AbstractThe family Lauraceae is a major component of tropical and subtropical forests worldwide, and includes some commercially important timber trees and medicinal plants. However, phylogenetic relationships within Lauraceae have long been problematic due to low sequence divergence in commonly used markers, even between morphologically distinct taxa within the family. Here we present phylogenetic analyses of 43 newly generated Lauraceae plastomes together with 77 plastomes obtained from GenBank, representing 24 genera of Lauraceae and 17 related families of angiosperms, plus nine barcodes from 19 additional species in 18 genera of Lauraceae, in order to reconstruct highly supported relationships for the Lauraceae. Our phylogeny supports the relationships: sisterhood of the Lauraceae and a clade containing Hernandiaceae and Monimiaceae, with Atherospermataceae and Gomortegaceae being the next sister groups, followed by Calycanthaceae. Our results highlight a monophyletic Lauraceae, with nine well-supported clades as follows: Hypodaphnis clade, Beilschmiedia-Cryptocarya clade, Cassytha clade, Neocinnamomum clade, Caryodaphnopsis clade, Chlorocardium-Mezilaurus clade, Machilus-Persea clade, Cinnamomum-Ocotea clade, and Laurus-Neolitsea clade. The topology recovered here is consistent with the patterns of plastome structural evolution and morphological synapomorphies reported previously. More specifically, flower sex, living type, inflorescence type, ovary position, anther locus number, leaf arrangement, leaf venation, lateral vein number, tree height, and inflorescence location all represent morphological synapomorphies of different lineages. Our findings have taxonomic implications and two new tribes, Caryodaphnopsideae and Neocinnamomeae, are described, and the composition of four other tribes is updated. The phylogeny recovered here provides a robust phylogenetic framework through which to address the evolutionary history of the Magnoliids, the third-largest group of Mesangiospermae.
Keywordchloroplast Laurales magnoliids phylogenetic relationships
Indexed BySCI ; SCI
WOS IDWOS:000488554900001
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Document Type期刊论文
Corresponding AuthorYang, Jun-Bo; Liu, Bing; Corlett, Richard T.
Affiliation1.Chinese Acad Sci, Ctr Integrat Conservat, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China
2.Chinese Acad Sci, Core Bot Gardens, Ctr Conservat Biol, Mengla 666303, Yunnan, Peoples R China
3.Chinese Acad Sci, Southeast Asia Biodivers Res Inst, Yezin 05282, Nay Pyi Taw, Myanmar
4.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming 650201, Yunnan, Peoples R China
5.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
6.Chinese Acad Sci, Sino African Joint Res Ctr, Wuhan 430074, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Song, Yu,Yu, Wen-Bin,Tan, Yun-Hong,et al. Plastid phylogenomics improve phylogenetic resolution in the Lauraceae[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2019:17.
APA Song, Yu.,Yu, Wen-Bin.,Tan, Yun-Hong.,Jin, Jian-Jun.,Wang, Bo.,...&Corlett, Richard T..(2019).Plastid phylogenomics improve phylogenetic resolution in the Lauraceae.JOURNAL OF SYSTEMATICS AND EVOLUTION,17.
MLA Song, Yu,et al."Plastid phylogenomics improve phylogenetic resolution in the Lauraceae".JOURNAL OF SYSTEMATICS AND EVOLUTION (2019):17.
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