Origin and evolutionary history of Populus (Salicaceae): Further insights based on time divergence and biogeographic analysis

doi:10.3389/fpls.2022.1031087

	Origin and evolutionary history of Populus (Salicaceae): Further insights based on time divergence and biogeographic analysis
	Liu, Xia 1; Wang, Zhaoshan 1; Wang, Wei 2; Huang, Qinqin 3; Zeng, Yanfei 1; Jin, Yu 4; Li, Honglei ; Du, Shuhui 5; Zhang, Jianguo 1
	2022
发表期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
卷号	13
摘要	IntroductionPopulus (Salicaceae) species harbour rich biodiversity and are widely distributed throughout the Northern Hemisphere. However, the origin and biogeography of Populus remain poorly understood. MethodsWe infer the divergence times and the historical biogeography of the genus Populus through phylogenetic analysis of 34 chloroplast fragments based on a large sample. Results and DiscussionEurasia is the likely location of the early divergences of Salicaceae after the Cretaceous-Paleogene (K-Pg) mass extinction, followed by recurrent spread to the remainder of the Old World and the New World beginning in the Eocene; the extant Populus species began to diversity during the early Oligocene (approximately 27.24 Ma), climate changes during the Oligocene may have facilitated the diversification of modern poplar species; three separate lineages of Populus from Eurasia colonized North America in the Cenozoic via the Bering Land Bridges (BLB); We hypothesize that the present day disjunction in Populus can be explained by two scenarios: (i) Populus likely originated in Eurasia and subsequently colonized other regions, including North America; and (ii) the fact that the ancestor of the genus Populus that was once widely distributed in the Northern Hemisphere and eventually wiped out due to the higher extinction rates in North America, similar to the African Rand flora. We hypothesize that disparities in extinction across the evolutionary history of Populus in different regions shape the modern biogeography of Populus. Further studies with dense sampling and more evidence are required to test these hypotheses. Our research underscores the significance of combining phylogenetic analyses with biogeographic interpretations to enhance our knowledge of the origin, divergence, and distribution of biodiversity in temperate plant floras.
关键词	biogeography divergence time molecular phylogeny Populus bering land bridge
学科领域	Plant Sciences
DOI	10.3389/fpls.2022.1031087
收录类别	SCI
语种	英语
WOS关键词	WESTERN NORTH-AMERICA ; GREEN RIVER FORMATION ; DIVERSIFICATION RATES ; GENETIC-RELATIONSHIPS ; PATERNAL CHLOROPLAST ; MOLECULAR PHYLOGENY ; EASTERN ASIA ; LAND-BRIDGE ; S-DIVA ; TERTIARY
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000907772800001
出版者	FRONTIERS MEDIA SA
文献子类	Article
出版地	LAUSANNE
资助机构	National Natural Science Foundation of China ; [31470665]
作者邮箱	zhangjg@caf.ac.cn
作品OA属性	gold, Green Published
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/28905
专题	系统与进化植物学国家重点实验室
作者单位	1.Chongqing Univ Arts & Sci, Coll Landscape Architecture & Life Sci, Chongqing, Peoples R China 2.Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Key Lab Silviculture,State Forestry Adm, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China 4.Chongqing Three Gorges Univ, Coll Biol & Food Engn, Chongqing, Peoples R China 5.Henan Acad Forestry, Qual Testing Ctr Forestry Prod, Natl & Grassland Adm, Zhengzhou, Peoples R China 6.Shanxi Agr Univ, Forestry Coll, Jinzhong, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xia,Wang, Zhaoshan,Wang, Wei,et al. Origin and evolutionary history of Populus (Salicaceae): Further insights based on time divergence and biogeographic analysis[J]. FRONTIERS IN PLANT SCIENCE,2022,13.
APA	Liu, Xia.,Wang, Zhaoshan.,Wang, Wei.,Huang, Qinqin.,Zeng, Yanfei.,...&Zhang, Jianguo.(2022).Origin and evolutionary history of Populus (Salicaceae): Further insights based on time divergence and biogeographic analysis.FRONTIERS IN PLANT SCIENCE,13.
MLA	Liu, Xia,et al."Origin and evolutionary history of Populus (Salicaceae): Further insights based on time divergence and biogeographic analysis".FRONTIERS IN PLANT SCIENCE 13(2022).

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