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Fossil fruits of Firmiana and Tilia from the middle Miocene of South Korea and the efficacy of the Bering land bridge for the migration of mesothermal plants

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Plant Diversity 2021年第6期43卷 480-491页

作者： Lin-Bo Jia Gi-Soo Nam Tao Su gregory w.stull Shu-Feng Li Yong-Jiang Huang Zhe-Kun Zhou CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650204China Gongju National University of Education 27Ungjin-roGongju-siChungcheongnam-do 32553South Korea CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303China University of the Chinese Academy of Sciences Beijing 100049China Germplasm Bank of wild Species Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China Department of Botany Smithsonian InstitutionWashingtonDC 20013USA

Determining whether the high-latitude Bering land bridge(BLB)was ecologically suitable for the migration of mesothermal plants is significant for Holarctic phytogeographic *** studies provide a critical source of data on the latitudinal positions of different plant lineages at different times,permitting assessment of the efficacy of the BLB for *** we report exceptionally preserved fossils of Firmiana and Tilia endochrysea from the middle Miocene of South *** represents a new reliable record of Firmiana and the first discovery of the *** lineage in the fossil record of *** occurrence of these fossils in South Korea indicates that the two lineages had a distribution that extended much farther north during the middle Miocene,but they were still geographically remote from the *** light of the broader fossil record of Asia,our study shows that,in the middle Miocene,some mesothermal plants apparently inhabited the territory adjacent to the BLB and thus they were possibly capable of utilizing the BLB as a migratory *** other mesothermal plants,such as Firmiana and the *** lineages,however,are restricted to more southern regions relative to the BLB based on current fossil *** lineages may have been ecologically unable to traverse the BLB,which raises questions about the efficacy of the BLB as a universal exchange route for mesothermal plants between Asia and North America during the middle Miocene.

关键词： Asia Bering land bridge Biogeography Middle Miocene Malvaceae

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Phylogenomics,reticulation,and biogeographical history of Elaeagnaceae

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Plant Diversity 2024年第6期46卷 683-697页

作者： wei Gu Ting Zhang Shui-Yin Liu Qin Tian Chen-Xuan Yang Qing Lu Xiao-Gang Fu Heather R.Kates gregory w.stull Pamela S.Soltis Douglas E.Soltis Ryan A.Folk Robert P.Guralnick De-Zhu Li Ting-Shuang Yi Germplasm Bank of wild Species&Yunnan Key Laboratory of Crop wild Relatives Omics Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China Kunming College of Life Science University of Chinese Academy of SciencesKunming 650201China Key Laboratory of Plant Diversity and Specialty Crops Chinese Academy of SciencesBeijing 100093China Florida Museum of Natural History University of FloridaGainesvilleFL 32611United States Department of Biology University of FloridaGainesvilleFL 32611United States Department of Biological Sciences Mississippi State UniversityMississippiMS 39762United States School of Life Sciences Yunnan UniversityKunming 650504YunnanChina

The angiosperm family Elaeagnaceae comprises three genera and ca.100 species distributed mainly in Eurasia and North *** family-wide phylogenetic and biogeographic research on Elaeagnaceae has been conducted,limiting the application and preservation of natural genetic ***,we reconstructed a strongly supported phylogenetic framework of Elaeagnaceae to better understand interand intrageneric relationships,as well as the origin and biogeographical history of the *** this purpose,we used both nuclear and plastid sequences from Hyb-Seq and genome skimming approaches to reconstruct a well-supported phylogeny and,along with current distributional data,infer historical biogeographical *** phylogenetic analyses of both nuclear and plastid data strongly support the monophyly of Elaeagnaceae and each of the three *** was resolved as sister to the well-supported clade of Hippophae and *** intrageneric relationships of Elaeagnus and Hippophae were also well *** levels of nuclear gene tree conflict and cytonuclear discordance were detected within Elaeagnus,and our analyses suggest putative ancient and recent *** inferred that Elaeagnaceae originated at ca.90.48 Ma(95%CI?89.91e91.05 Ma),and long-distance dispersal likely played a major role in shaping its intercontinentally disjunct *** work presents the most comprehensive phylogenetic framework for Elaeagnaceae to date,offers new insights into previously unresolved relationships in Elaeagnus,and provides a foundation for further studies on classification,evolution,biogeography,and conservation of Elaeagnaceae.

关键词： Biogeography Cytonuclear discordance Hybridization Phylogeny Long-distance dispersal

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