Florida Museum of Natural History, Gainesville, FL, 32611, USA.
Genetics Institute, University of Florida, Gainesville, FL, 32610, USA.
Am J Bot. 2018 Mar;105(3):433-445. doi: 10.1002/ajb2.1059. Epub 2018 Apr 17.
Using phylogenetic approaches to test hypotheses on a large scale, in terms of both species sampling and associated species traits and occurrence data-and doing this with rigor despite all the attendant challenges-is critical for addressing many broad questions in evolution and ecology. However, application of such approaches to empirical systems is hampered by a lingering series of theoretical and practical bottlenecks. The community is still wrestling with the challenges of how to develop species-level, comprehensively sampled phylogenies and associated geographic and phenotypic resources that enable global-scale analyses. We illustrate difficulties and opportunities using the rosids as a case study, arguing that assembly of biodiversity data that is scale-appropriate-and therefore comprehensive and global in scope-is required to test global-scale hypotheses. Synthesizing comprehensive biodiversity data sets in clades such as the rosids will be key to understanding the origin and present-day evolutionary and ecological dynamics of the angiosperms.
利用系统发育方法在物种采样和相关物种特征以及出现数据方面进行大规模的假设检验——尽管存在所有相关挑战，但仍要严格进行——这对于解决进化和生态学中的许多广泛问题至关重要。然而，此类方法在经验系统中的应用受到一系列挥之不去的理论和实际瓶颈的阻碍。该领域仍在努力应对如何开发具有物种水平、全面采样的系统发育以及相关地理和表型资源的挑战，这些资源使全球范围的分析成为可能。我们以蔷薇目为例来说明困难和机遇，认为需要组装具有适当规模的生物多样性数据——因此，范围全面且全球——以检验全球规模的假设。在蔷薇目等进化枝中综合全面的生物多样性数据集对于理解被子植物的起源以及当今的进化和生态动态将是关键。
