Born migrators: Historical biogeography of the cosmopolitan family Cannabaceae

Jian Jun Jin, Mei Qing Yang, Peter W. Fritsch, Robin van Velzen, De Zhu Li*, Ting Shuang Yi

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Dispersal scenarios have been favored over tectonic vicariance as an explanation for disjunct distributions in many plant taxa during the last two decades. However, this argument has been insufficiently addressed in cosmopolitan groups showing disjunct patterns in both the temperate and tropical regions. In this study, we used the Cannabaceae, an angiosperm family distributed in tropical and temperate regions of both the New World and the Old World, to explore the role of dispersal in shaping disjunct patterns and species diversification of cosmopolitan plants. We reconstructed the phylogenetic relationships of all 10 genera and 75 species of Cannabaceae (ca. 64.1% of recognized species) based on eight DNA regions. Based on fossil calibrations, we estimated the divergence times and net diversification rates. We further inferred the ancestral geographical ranges with several models and compared the fitness of different models. The Cannabaceae and most genera were strongly supported as monophyletic except for the Parasponia being embedded within the Trema. The Celtis were resolved into two strongly supported clades primarily corresponding to temperate and tropical regions. We inferred that the Cannabaceae originated at ca. 93 Ma, and that subsequent rampant and widespread dispersals shaped the intercontinentally disjunct distribution of the Cannabaceae. Dispersal coincides with adaptation to drier and colder climate in the Northern Hemisphere, or humid and warm climate in the tropical regions, followed by rapid species diversification. This study advances our understanding as to the formation of distribution patterns and species diversification of a plant family with tropical to temperate disjunct distributions.

Original languageEnglish
JournalJournal of Systematics and Evolution
DOIs
Publication statusE-pub ahead of print - 23 Nov 2019

Fingerprint

Cannabaceae
biogeography
disjunct distribution
tropical region
tropics
Parasponia
Trema
Celtis
vicariance
cold zones
climate
tectonics
angiosperm
Angiospermae
Northern Hemisphere
fitness
calibration
fossils
divergence
family

Keywords

  • ancestral geographical range analysis
  • Cannabaceae
  • dispersal
  • molecular dating
  • Northern Hemisphere
  • phylogeny

Cite this

Jin, Jian Jun ; Yang, Mei Qing ; Fritsch, Peter W. ; van Velzen, Robin ; Li, De Zhu ; Yi, Ting Shuang. / Born migrators: Historical biogeography of the cosmopolitan family Cannabaceae. In: Journal of Systematics and Evolution. 2019.
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author = "Jin, {Jian Jun} and Yang, {Mei Qing} and Fritsch, {Peter W.} and {van Velzen}, Robin and Li, {De Zhu} and Yi, {Ting Shuang}",
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Born migrators: Historical biogeography of the cosmopolitan family Cannabaceae. / Jin, Jian Jun; Yang, Mei Qing; Fritsch, Peter W.; van Velzen, Robin; Li, De Zhu; Yi, Ting Shuang.

In: Journal of Systematics and Evolution, 23.11.2019.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Yang, Mei Qing

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AU - Yi, Ting Shuang

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