| Phylogeography and Population History of Eleutharrhena macrocarpa (Tiliacoreae, Menispermaceae) in Southeast Asia's Most Northerly Rainforests | |
| Song, Shijie1; Shen, Jianyong; Zhou, Shishun; Guo, Xianming2; Zhao, Jinchao3; Shi, Xinghui4; Yu, Zhiyong5; Gong, Qiangbang6; You, Shaohua7; Landrein, Sven | |
| 2022 | |
| Source Publication | DIVERSITY-BASEL
 |
| ISSN | 1424-2818 |
| Volume | 14Issue:6Pages:- |
| Abstract | The diversification of Tiliacoreae and the speciation of Eleutharrhena are closely linked to Southeast Asia's most northerly rainforests which originate from the Himalayan uplift. Migration routes across biogeographical zones within the Asian clade, including those of Eleutharrhena, Pycnarrhena, and Macrococculus, and their population structures are still unexplored. We combine endocarp morphology, phylogenetic analyses, divergence time estimation, ancestral area reconstruction, as well as SCoT method to reconstruct the past diversification of Eleutharrhena macrocarpa and to understand their current distribution, rarity, and evolutionary distinctiveness. The disjunct, monospecific, and geographically restricted genera Eleutharrhena and Macrococculus both have a dry aril, a unique feature in Menispermaceae endocarps that further confirms their close relationship. Pycnarrhena and Eleutharrhena appeared during the end of the Oligocene c. 23.10 million years ago (Mya) in Indochina. Eleutharrhena speciation may be linked to climate change during this time, when humid forests became restricted to the northern range due to the Himalayan uplift. Differentiation across the Thai-Burmese range could have contributed to the isolation of the Dehong populations during the Miocene c. 15.88 Mya, when exchange between India and continental Asia ceased. Dispersal to the Lanping-Simao block and further differentiation in southeastern and southern Yunnan occurred during the Miocene, c. 6.82 Mya. The specific habitat requirements that led to the biogeographic patterns observed in E. macrocarpa contributed to a low genetic diversity overall. Population 1 from Dehong, 16 from Pu'er, and 20 from Honghe on the East of the Hua line have a higher genetic diversity and differentiation; therefore, we suggest that their conservation be prioritized. |
| Keyword | aril conservation genetics Eleutharrhena macrocarpa evolutionary distinctiveness Himalayan uplift Menispermaceae southern Yunnan rainforests Tiliacoreae |
| Subject Area | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| DOI | 10.3390/d14060437 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000815914300001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/13218 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Xishuangbanna 666303, Peoples R China 2.Univ Chinese Acad Sci, Coll Life Sci, Beijing 101408, Peoples R China 3.Res Inst Xishuangbanna Natl Nat Reserve, Xishuangbanna 666100, Peoples R China 4.Management Bur Nangunhe Natl Nat Reserve, Lincang 677400, Peoples R China 5.Management & Protect Bur Daweishan Natl Nat Reser, Pingbian Branch, Pingbian 661299, Honghe Hani & Y, Peoples R China 6.Management Bur Fenshuiling Natl Nat Reserve, Jinping 661500, Honghe Hani & Y, Peoples R China 7.Tongbiguan Prov Nat Reserve, Dehong 678400, Dehong Dai & Ji, Peoples R China 8.Xishuangbanana Natl Nat Reserve, Xishuangbanna 666100, Peoples R China |
| Recommended Citation GB/T 7714 | Song, Shijie,Shen, Jianyong,Zhou, Shishun,et al. Phylogeography and Population History of Eleutharrhena macrocarpa (Tiliacoreae, Menispermaceae) in Southeast Asia's Most Northerly Rainforests[J]. DIVERSITY-BASEL,2022,14(6):-. |
| APA | Song, Shijie.,Shen, Jianyong.,Zhou, Shishun.,Guo, Xianming.,Zhao, Jinchao.,...&Landrein, Sven.(2022).Phylogeography and Population History of Eleutharrhena macrocarpa (Tiliacoreae, Menispermaceae) in Southeast Asia's Most Northerly Rainforests.DIVERSITY-BASEL,14(6),-. |
| MLA | Song, Shijie,et al."Phylogeography and Population History of Eleutharrhena macrocarpa (Tiliacoreae, Menispermaceae) in Southeast Asia's Most Northerly Rainforests".DIVERSITY-BASEL 14.6(2022):-. |
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| Phylogeography and P（4020KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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