Wang Yajun, Wang Hanchen, Ye Chao, Wang Zhiping, Ma Chongbo, Lin Dongliang, Jin Xiaohua
State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China.
University of Chinese Academy of Sciences, Beijing 100093, China.
Plant Divers. 2024 May 16;46(4):425-434. doi: 10.1016/j.pld.2024.05.002. eCollection 2024 Jul.
Orchidaceae are one of the largest families of angiosperms in terms of species richness. In the last decade, numerous studies have delved into reconstructing the phylogenetic framework of Orchidaceae, leveraging data from plastid, mitochondrial and nuclear sources. These studies have provided new insights into the systematics, diversification and biogeography of Orchidaceae, establishing a robust foundation for future research. Nevertheless, pronounced controversies persist regarding the precise placement of certain lineages within these phylogenetic frameworks. To address these discrepancies and deepen our understanding of the phylogenetic structure of Orchidaceae, we provide a comprehensive overview and analysis of phylogenetic studies focusing on contentious groups within Orchidaceae since 2015, delving into discussions on the underlying reasons for observed topological conflicts. We also provide a novel phylogenetic framework at the subtribal level. Furthermore, we examine the tempo and mode underlying orchid species diversity from the perspective of historical biogeography, highlighting factors contributing to extensive speciation. Ultimately, we delineate avenues for future research aimed at enhancing our understanding of Orchidaceae phylogeny and diversity.
从物种丰富度来看，兰科是被子植物中最大的科之一。在过去十年中，众多研究利用来自质体、线粒体和核源的数据，深入探究了兰科系统发育框架的重建。这些研究为兰科的系统分类学、多样化和生物地理学提供了新的见解，为未来的研究奠定了坚实的基础。然而，关于某些谱系在这些系统发育框架中的精确位置仍存在明显争议。为了解决这些差异并加深我们对兰科系统发育结构的理解，我们对2015年以来聚焦于兰科中有争议类群的系统发育研究进行了全面综述和分析，深入探讨了观察到的拓扑冲突的潜在原因。我们还提供了一个新的亚族水平的系统发育框架。此外，我们从历史生物地理学的角度研究了兰花物种多样性的节奏和模式，强调了导致广泛物种形成的因素。最终，我们勾勒出未来研究的方向，旨在增进我们对兰科系统发育和多样性的理解。
