Biogeography and ecological drivers of evolution in the Andes: resolving the phylogenetic backbone for Calceolaria (Calceolariaceae)
Biogeography and ecological drivers of evolution in the Andes: resolving the phylogenetic backbone for Calceolaria (Calceolariaceae)
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DOI：
10.1093/botlinnean/boab079
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发表时间：
2022-04-13
影响因子：
2.4
通讯作者：
Espindola，Anahi
中科院分区：
文献类型：
--
作者：
Frankel，Lauren;Murua，Maureen;Espindola，Anahi
蒲包属（蒲包科）是美洲的一个象征性的和多样的属。尽管是该地区最容易识别的属之一，也是一个具有巨大潜力的系统，可以提高我们对安第斯山脉物种多样化不同驱动因素的理解，但其属内进化关系仍然知之甚少。响应需要额外的分子标记来解决组的系统发育关系，我们进行质体分析，并解决属的骨干。具体而言，使用低覆盖率的基因组为14个物种，我们组装的质体，估计和日期的系统发育假说和评估组中的进化趋势。我们的方法使我们能够解决的属的骨干，确定两个主要的分支，并估计多样化的时间同期的主要气候和造山事件。我们的植物地理重建建议一个独立的殖民地的整个范围内的属的两个分支。最后，我们的花形态的评价揭示了未来的途径，调查传粉生物学和多样化的组之间的关系。
Calceolaria(Calceolariaceae) is an emblematic and diverse genus in the Americas. Despite being one of the most easily recognized genera in the region and a system with great potential to improve our understanding of different drivers of species diversification in the Andes, its intrageneric evolutionary relationships are still poorly understood. Responding to the need for additional molecular markers to resolve the phylogenetic relationships of the group, we perform plastome analyses and resolve the backbone of the genus. Specifically, using low-coverage genomes for 14 species, we assembled plastomes, estimated and dated phylogenetic hypotheses and evaluated evolutionary trends in the group. Our approach allowed us to resolve the backbone of the genus, identify two main clades and estimate a timing of diversification contemporaneous to major climatic and orogenic events. Our biogeographic reconstructions suggest an independent colonization of the whole range of the genus by both clades. Finally, our evaluations of floral morphology reveal future avenues for investigating the relationship between the pollination biology and diversification of the group.