Phylogenetic relationships and biogeography of Asia Callicarpa (Lamiaceae), with consideration of a long-distance dispersal across the Pacific Ocean —insights into divergence modes of pantropical flora.
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fpls-14-1133157.pdf
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28.43 MB
Format
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Resource type
Journal article
Date published
May 15, 2023
Abstract
There are about 140 species of L. 1753 (Lamiaceae), with more species richness in tropical to subtropical Asia and the New World. The genus might provide an insight into the amphi-Pacific disjunction pattern of tropical and subtropical vegetation. This study has greatly improved the phylogenetic underpinning for , derived from more inclusive taxonomic samplings, and employing data on both two-nuclear and eight-chloroplast regions. To address time and patterns of diversification in , we conducted divergence time and biogeographic analyses, and inferred shifts in the distribution areas across the phylogenetic clades. Our phylogenetic results show that is monophyletic with respect to the groups considered, and eight well-supported primary clades were discerned in the combined analyses. Our estimates indicated that the crown group of originates around the Late-Eocene (ca. 36.23 Ma) and diversification within most clades is concentrated in the Miocene and continued to the Pleistocene. In addition, our biogeographic analyses suggested that the probable ancestor of the Callicarpa crown clade originated in East Asia and Southeast Asia. Multiple dispersal and vicariance events contributed to the current distribution of the taxa. Furthermore, this genus expanded eastward out of East and Southeast Asia to the New World by long-distance dispersal, which inspired us to better understand the amphi-Pacific disjunct distribution.
Project(s)
Priority 4: Accelerated Taxonomy
Funder
| Funder name | Awards |
National Natural Science Foundation of China, China | Grant 31760045 - Grant 31970220 - Grant 32260047 |
Natural Science Foundation of Guangxi Province, China | Grant 2018GXNSFAA281132 |
Foundation of Guangxi Key Laboratory of Sugarcane Biology | GXKLSCB-202004 |
Journal title
Frontiers in Plant Science
Volume
14
Article number
1133157
Publisher
Frontiers Media SA
Place of publication
Lausanne, Switzerland
eISSN
1664-462X
Date accepted
April 20, 2023
Official URL
Rights statement
In Copyright
Additional information
IF = 6.627 (2022-2023)