Knowledge Management System Of Institute Of Botany,CAS
| Bilobate leaves of Bauhinia (Leguminosae, Caesalpinioideae, Cercideae) from the middle Miocene of Fujian Province, southeastern China and their biogeographic implications | |
| Lin, Yanxiang1; Wong, William Oki; Shi, Gongle2; Shen, Si; Li, Zhenyu | |
| 2015 | |
| 发表期刊 | BMC EVOLUTIONARY BIOLOGY
 |
| ISSN | 1471-2148 |
| 卷号 | 15 |
| 摘要 | Background: Morphological and molecular phylogenetic studies suggest that the pantropical genus Bauhinia L. s.l. (Bauhiniinae, Cercideae, Leguminosae) is paraphyletic and may as well be subdivided into nine genera, including Bauhinia L. s.s. and its allies. Their leaves are usually characteristic bilobate and are thus easily recognized in the fossil record. This provides the opportunity to understand the early evolution, diversification, and biogeographic history of orchid trees from an historical perspective under the framework of morphological and molecular studies. Results: The taxonomy, distribution, and leaf architecture of Bauhinia and its allies across the world are summarized in detail, which formed the basis for classifying the bilobate leaf fossils and evaluating the fossil record and biogeography of Bauhinia. Two species of Bauhinia are described from the middle Miocene Fotan Group of Fujian Province, southeastern China. Bauhinia ungulatoides sp. nov. is characterized by shallowly to moderately bilobate, pulvinate leaves with shallowly cordate bases and acute apices on each lobe, as well as paracytic stomatal complexes. Bauhinia fotana F.M.B. Jacques et al. emend. possesses moderately bilobate, pulvinate leaves with moderately to deeply cordate bases and acute or slightly obtuse apices on each lobe. Conclusions: Bilobate leaf fossils Bauhinia ungulatoides and B. fotana together with other late Paleogene - early Neogene Chinese record of the genus suggest that Bauhinia had been diverse in South China by the late Paleogene. Their great similarities to some species from South America and South Asia respectively imply that Bauhinia might have undergone extensive dispersals and diversification during or before the Miocene. The fossil record, extant species diversity, as well as molecular phylogenetic analyses demonstrate that the Bauhiniinae might have originated in the Paleogene of low-latitudes along the eastern Tethys Seaway. They dispersed southwards into Africa, migrated from Eurasia to North America via the North Atlantic Land Bridge or floating islands during the Oligocene. Then the genus spread into South America probably via the Isthmus of Panama since the Miocene onward, and underwent regional extinctions in the Boreotropics of mid-high-latitudes during the Neogene climatic cooling. Hence, Bauhinia presently exhibits a pantropical intercontinental disjunct distribution. |
| 关键词 | Bauhinia Bauhiniinae Bilobate leaves Biogeography Caesalpinioideae Cercideae Evolution Fotan Group Legumes Leguminosae Miocene North Atlantic Land Bridge Orchid trees Pantropical intercontinental disjunct South China Tethys Seaway |
| 学科领域 | Evolutionary Biology ; Genetics & Heredity |
| DOI | 10.1186/s12862-015-0540-9 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | ATLANTIC LAND-BRIDGE ; S.L. LEGUMINOSAE ; FOSSIL LEAVES ; NORTHERN-HEMISPHERE ; TERTIARY FLORA ; EVOLUTION ; PLANT ; EOCENE ; FRUITS ; LEAF |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| WOS记录号 | WOS:000364805400001 |
| 出版者 | BMC |
| 文献子类 | Article |
| 出版地 | LONDON |
| 资助机构 | National Natural Science Foundation of China [41372029, 41206173] |
| 作者邮箱 | happyking@ibcas.ac.cn ; glshi@nigpas.ac.cn ; lizy@ibcas.ac.cn |
| 作品OA属性 | Green Published, gold |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/25995 |
| 专题 | 系统与进化植物学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, Yanxiang,Wong, William Oki,Shi, Gongle,et al. Bilobate leaves of Bauhinia (Leguminosae, Caesalpinioideae, Cercideae) from the middle Miocene of Fujian Province, southeastern China and their biogeographic implications[J]. BMC EVOLUTIONARY BIOLOGY,2015,15. |
| APA | Lin, Yanxiang,Wong, William Oki,Shi, Gongle,Shen, Si,&Li, Zhenyu.(2015).Bilobate leaves of Bauhinia (Leguminosae, Caesalpinioideae, Cercideae) from the middle Miocene of Fujian Province, southeastern China and their biogeographic implications.BMC EVOLUTIONARY BIOLOGY,15. |
| MLA | Lin, Yanxiang,et al."Bilobate leaves of Bauhinia (Leguminosae, Caesalpinioideae, Cercideae) from the middle Miocene of Fujian Province, southeastern China and their biogeographic implications".BMC EVOLUTIONARY BIOLOGY 15(2015). |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Lin-2015-Bilobate le（3772KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论