Google Search Baidu Search
(多个关键字请用"空格"格开)
您当前的位置:首页 > 科研成果 > 论文
论文

Extensive Miocene speciation in and out of Indochina: The biogeographic history of Typhonium sensu stricto (Araceae) and its implication for the assembly of Indochina flora 

 
论文编号:
作者: Low SL
刊物名称: Journal of Systematics and Evolution
所属学科:
论文题目英文: Extensive Miocene speciation in and out of Indochina: The biogeographic history of Typhonium sensu stricto (Araceae) and its implication for the assembly of Indochina flora
年: May 2021
卷: 59
期: 3
页: 419-428
联系作者: Xing YW
收录类别:
影响因子: 4.089
参与作者:
备注:
摘要: The Asian paleotropical flora is characterized by abundance of endemic species, high biodiversity, and complex geological and climatic histories. However, the main driving mechanism underlying such high tropical biodiversity remains unclear. Hence, the present study aimed to investigate the biogeographic origin of the Asian paleotropical flora by tracking the speciation and diversification history of a typical tropical perennial, Typhonium sensu stricto (s.s.) (Araceae), using a time-calibrated whole-plastome phylogeny. In particular, we tested whether the Asian paleotropic region is a macroevolutionary source or sink. We observed that Typhonium s.s. originated in Indochina during the early–middle Miocene epoch, ca. 17.24 Ma (95% highest posterior density [HPD]: 12.83-21.99 Ma). Most of the in situ diversification within the genus Typhonium s.s. has been underway since 14.73 Ma, with an accelerated lineage diversification at ca. 15-17 Ma, which may have been triggered by the intensification of the Asian monsoon system around the middle Miocene. Furthermore, the underground tuberous stem of Typhonium s.s. might have played an essential role in the adaptation to the seasonality caused by the monsoon in Indochina. Our results also suggested that peripatric speciation may be important in the diversification of T. trilobatum and T. roxburghii. This study provides a framework for studies in biogeography and evolution of the Asian paleotropical flora.
论文下载: 下载地址
   

关闭窗口

返回首页

CAS-MART.png
数字标本.png
东南亚中心2.jpg
前往中国植物园联盟网站
W020160606696316538360.jpg
屏幕快照 2018-07-04 09.56.59.png