Contrasting biogeographic and diversification patterns in two Mediterranean-type ecosystems.
Contrasting biogeographic and diversification patterns in two Mediterranean-type ecosystems.
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DOI：
10.1371/journal.pone.0039377
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发表时间：
2012
期刊：
影响因子：
3.7
通讯作者：
Forest F
中科院分区：
文献类型：
--
作者：
Buerki S;Jose S;Yadav SR;Goldblatt P;Manning JC;Forest F
世界上的五个地中海地区包括近50，000种植物（约占已知维管植物的20%），尽管占世界陆地面积的不到5%。其中两个地区的生态和进化历史，开普植物区系和地中海盆地，已被广泛调查，但很少有研究旨在了解它们之间的历史关系。在这里，我们研究的植物地理和多样化的过程中，形成了植物多样性的进化在好望角和地中海盆地使用一个大的质体数据集的geophyte家庭风信子科（包括约。25%的总多样性），一组主要分布在整个非洲和欧亚大陆。风信子科是一个主要群体在开普敦和地中海盆地无论是在物种数量和形态和生态变异。使用国家的最先进的方法，在地理和多样化，我们发现，旧世界的家庭成员起源于撒哈拉以南非洲的古新世-始新世边界，两个地中海地区都有很高的多样化率，但对比地理的历史。虽然在整个家族历史中，开普多样性受到其与撒哈拉以南非洲关系的极大影响，但地中海盆地在该地区地中海气候开始和撒哈拉干旱化之后与后者没有联系。地中海盆地随后对邻近地区的多样性做出了重大贡献，特别是北方和中东，而开普敦可以被视为地理学上的死胡同，只有少数人向撒哈拉以南非洲地区扩散。这两个重要的生物多样性储存库的进化历史的理解将受益于这里开发的框架的应用程序中存在于两个地区的其他植物群。
The five Mediterranean regions of the world comprise almost 50,000 plant species (ca 20% of the known vascular plants) despite accounting for less than 5% of the world’s land surface. The ecology and evolutionary history of two of these regions, the Cape Floristic Region and the Mediterranean Basin, have been extensively investigated, but there have been few studies aimed at understanding the historical relationships between them. Here, we examine the biogeographic and diversification processes that shaped the evolution of plant diversity in the Cape and the Mediterranean Basin using a large plastid data set for the geophyte family Hyacinthaceae (comprising ca. 25% of the total diversity of the group), a group found mainly throughout Africa and Eurasia. Hyacinthaceae is a predominant group in the Cape and the Mediterranean Basin both in terms of number of species and their morphological and ecological variability. Using state-of-the-art methods in biogeography and diversification, we found that the Old World members of the family originated in sub-Saharan Africa at the Paleocene–Eocene boundary and that the two Mediterranean regions both have high diversification rates, but contrasting biogeographic histories. While the Cape diversity has been greatly influenced by its relationship with sub-Saharan Africa throughout the history of the family, the Mediterranean Basin had no connection with the latter after the onset of the Mediterranean climate in the region and the aridification of the Sahara. The Mediterranean Basin subsequently contributed significantly to the diversity of neighbouring areas, especially Northern Europe and the Middle East, whereas the Cape can be seen as a biogeographical cul-de-sac, with only a few dispersals toward sub-Saharan Africa. The understanding of the evolutionary history of these two important repositories of biodiversity would benefit from the application of the framework developed here to other groups of plants present in the two regions.
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影响因子：
4.1
作者：
Arrigo, Nils;Buerki, Sven;Kozlowski, Gregor
通讯作者：
Kozlowski, Gregor
影响因子：
3.4
作者：
Fay, MF;Bayer, C;Chase, MW
通讯作者：
Chase, MW
影响因子：
4.2
作者：
Ali, Syed Shujait;Yu, Yan;Wetschnig, Wolfgang
通讯作者：
Wetschnig, Wolfgang
影响因子：
6.8
作者：
AKAIKE, H
通讯作者：
AKAIKE, H
影响因子：
3.4
作者：
Andrus, N;Trusty, J;Francisco-Ortega, J
通讯作者：
Francisco-Ortega, J