The rapid radiation of Bomarea (Alstroemeriaceae: Liliales), driven by the rise of the Andes
The rapid radiation of Bomarea (Alstroemeriaceae: Liliales), driven by the rise of the Andes
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DOI：
10.1093/evolut/qpad184
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发表时间：
2023-10-13
期刊：
影响因子：
3.3
通讯作者：
Rothfels，Carl J.
中科院分区：
文献类型：
--
作者：
Tribble，Carrie M.;Alzate-Guarin，Fernando;Rothfels，Carl J.
山脉隆起等地质事件会影响物种多样化的方式、时间和地点，但衡量这些影响是一个长期的挑战。安第斯山脉对区域生物群的进化产生了影响，它阻碍了基因的流动，开辟了新的栖息地，并改变了当地的气候。B o m a r e a（Alstroemeriaceae）是热带植物，（通常）分布范围较小，孤立;总的来说，B o m a r e a物种分布于墨西哥中部至智利中部。这个属似乎已经迅速进化，最近，快速辐射往往是具有挑战性的解决与传统的系统发育推断。在这项研究中，我们应用了基因组学-数百个位点，基因树为基础的数据策展，和多物种结合的方法-来推断B o muscle的遗传。我们使用这个系统来解开多样化和地理历史的潜在驱动因素。特别是，我们测试，如果安第斯山脉的贡献，B的多样化？我们发现，B o m a r e a在中新世中期起源于安第斯山脉中部，然后沿着山脉隆升的轨迹向北扩展。此外，安第斯血统比非安第斯亲属多样化得更快。因此，B o Bagarim Bagarin Bag这些结果也证明了基因组规模的数据进行宏观进化推断的效用（和危险）。
Geological events such as mountain uplift affect how, when, and where species diversify, but measuring those effects is a longstanding challenge. Andean orogeny impacted the evolution of regional biota by creating barriers to gene flow, opening new habitats, and changing local climate. Bomarea (Alstroemeriaceae) are tropical plants with (often) small, isolated ranges; in total, Bomarea species occur from central Mexico to central Chile. This genus appears to have evolved rapidly and quite recently, and rapid radiations are often challenging to resolve with traditional phylogenetic inference. In this study, we apply phylogenomics—with hundreds of loci, gene-tree-based data curation, and a multispecies-coalescent approach—to infer the phylogeny of Bomarea. We use this phylogeny to untangle the potential drivers of diversification and biogeographic history. In particular, we test if Andean orogeny contributed to the diversification of Bomarea. We find that Bomarea originated in the central Andes during the mid-Miocene, then spread north, following the trajectory of mountain uplift. Furthermore, Andean lineages diversified faster than non-Andean relatives. Bomarea thus demonstrates that—at least in some cases—geological change rather than environmental stability has driven high species diversity in a tropical biodiversity hotspot. These results also demonstrate the utility (and danger) of genome-scale data for making macroevolutionary inferences.