Molecular phylogeny and biogeographic diversification of linnaeoideae (caprifoliaceae s. L.) disjunctly distributed in Eurasia, North America and Mexico

PloS One
Hua-Feng WangShiliang Zhou

Abstract

Linnaeoideae is a small subfamily of erect or creeping shrubs to small trees in Caprifoliaceae that exhibits a wide disjunct distribution in Eurasia, North America and Mexico. Most taxa of the subfamily occur in eastern Asia and Mexico but the monospecific genus Linnaea has a circumboreal to north temperate distribution. In this study, we conducted phylogenetic and biogeographic analyses for Linnaeoideae and its close relatives based on sequences of the nuclear ribosomal ITS and nine plastid (rbcL, trnS-G, matK, trnL-F, ndhA, trnD-psbM, petB-D, trnL-rpl32 and trnH-psbA) markers. Our results support that Linnaeoideae is monophyletic, consisting of four eastern Asian lineages (Abelia, Diabelia, Dipelta and Kolkwitzia), the Mexican Vesalea, and Linnaea. The Mexican Vesalea was formerly placed in Abelia, but it did not form a clade with the eastern Asian Abelia; instead Vesalea and Linnaea are sisters. The divergence time between the eastern Asian lineages and the Mexican Vesalea plus the Linnaea clade was dated to be 50.86 Ma, with a 95% highest posterior density of 42.8 Ma (middle Eocene) to 60.19 Ma (early Paleocene) using the Bayesian relaxed clock estimation. Reconstructed ancestral areas indicated that the common ancestor of ...Continue Reading

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Citations

Dec 8, 2015·Molecular Phylogenetics and Evolution·Tobias HerdenNikolai Friesen
Oct 12, 2016·The New Phytologist·Donald A Levin, Samuel V Scarpino
Jul 14, 2021·American Journal of Botany·Aaron K LeeWendy L Clement

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Datasets Mentioned

BETA
KP297477-KP297801

Methods Mentioned

BETA
PCR

Software Mentioned

FigTree
SequenceMatrix
RAxML
Clustal W
Tracer
MrModeltest
Al
Mega
MrBayes
BEAST

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