Immigration dynamics of tropical and subtropical Southeast Asian limestone karst floras

2022-01-11

作  者:Li XQ, Xiang XG*, Zhang Q, Jabbour F, Ortiz RD, Erst AS, Li ZY, Wang W*
影响因子:5.977
刊物名称:Proceedings of The Royal Society B-Biological Sciences
出版年份:2022
卷:289  期:1966  页码:20211308

论文摘要:

  Ex situ origins and dispersal of taxa have played important roles in the assembly of island-like biodiversity hotspots. Insular limestone karsts in Southeast Asia are hotspots of biodiversityandendemism, but the immigration processes of their unique floras are still poorly known. Here, we used Gesneriaceae as a proxy to investigate the immigration dynamics of tropical and subtropical Southeast Asian karst floras.We present the most comprehensive phylogenetic analysis of the Old World gesneriads to date based on twelve loci. By estimating divergence times and reconstructing ancestral states (habitat, soil type and range), we found that immigration into subtropical Southeast Asian karst floras first occurred in the Early Miocene, with two peaks in the Early–Middle Miocene and the Pliocene–Early Pleistocene, whereas immigration into tropical Southeast Asian karsts initiated in the Late Eocene, with two peaks in the Late Oligocene and the Late Miocene.We also discover that Southeast Asian karst biodiversity comprises immigrant pre-adapted lineages and descendants from local acid soil ancestors, although niche shift from acid soil to karst in tropical Southeast Asian islands was lacking. This study advances our understanding of the historical assembly of Southeast Asian karst floras. 

    

全文链接:https://royalsocietypublishing.org/doi/10.1098/rspb.2021.1308

附件下载:

位于北京西部香山脚下的中国科学院植物研究所是我国系统与进化生物学领域的第一个国家重点实验室

版权所有 © 系统与进化植物学国家重点实验室[中国科学院植物研究所]
ICP备16067583号-12 网站管理 技术支持:青云软件

联系我们

  • 地址:北京市海淀区 香山南辛村20号
  • 邮编:100093
  • 电话:010-6283 6086
  • 传真:010-6283 6095
  • 电邮:lseb@ibcas.ac.cn

语言切换