Zuo Zheng-Yu, Rouhan Germinal, Dong Shi-Yong, Liu Hong-Mei, Du Xin-Yu, Zhang Li-Bing, Lu Jin-Mei
Germplasm Bank of Wild Species, and Yunnan Key Laboratory of Crop Wild Relatives Omics, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum National d'Histoire Naturelle, CNRS, Sorbonne Université, Ecole Pratique des Hautes Etudes, Université des Antilles, CP39, 57 rue Cuvier 75005, Paris, France.
Plant Divers. 2024 Jul 30;47(1):34-52. doi: 10.1016/j.pld.2024.07.010. eCollection 2025 Jan.
Dryopteridaceae are the largest fern family and include nearly 20% of extant fern diversity, with 24 currently recognized genera. Recognition and delineation of genera within this family have varied greatly. The three-subfamily classification of Dryopteridaceae was based primarily on molecular phylogenetic relationships but lacked morphological evidence, and the phylogenetic relationships of the subfamilies and genera of Dryopteridaceae are only partially resolved. A comprehensive and robust phylogeny is urgently needed. The heterogeneous morphology of the current members of Dryopteridaceae makes the family and its subfamilies difficult to define by single morphological characteristics or even character combinations. We carried out phylogenetic analyses to reconstruct a highly supported phylogeny of Dryopteridaceae. Our analyses recovered 24 strongly supported clades grouped into seven major clades of Dryopteridaceae. Seven morphological characters including habit, rhizome shape, frond morphology, rachis-costae architecture, appendages on stipe base and lamina, and soral arrangement were found to be informative for identifying different major clades and clades in Dryopteridaceae. Based on phylogenetic reconstruction and morphological analysis, we presented an updated infra-familial classification of Dryopteridaceae with seven subfamilies and 24 genera including four newly proposed subfamilies (Ctenitidoideae, Lastreopsidoideae, Pleocnemioideae, and Polystichopsidoideae). Morphological character combinations of each subfamily are summarized, and a key is provided. Most genera sensu PPG I are recognized, with reclassified into Dryopteridoideae and considered a synonym of . A new genus is introduced. This revised classification will serve as a foundational framework for future investigations on taxonomy, biogeography, and diversification of the most species-rich Dryopteridaceae in ferns.
鳞毛蕨科是最大的蕨类植物科，包含了近20%的现存蕨类植物多样性，目前已确认有24个属。该科内各属的识别和划分差异很大。鳞毛蕨科的三亚科分类主要基于分子系统发育关系，但缺乏形态学证据，且该科亚科和属的系统发育关系仅得到部分解决。迫切需要一个全面且可靠的系统发育树。鳞毛蕨科现存成员的形态各异，使得该科及其亚科难以通过单一形态特征甚至特征组合来定义。我们进行了系统发育分析，以重建一个得到高度支持的鳞毛蕨科系统发育树。我们的分析得到了24个得到强烈支持的分支，这些分支被归入鳞毛蕨科的七个主要分支。发现包括植株习性、根状茎形状、叶形态、叶轴-中脉结构、叶柄基部和叶片上的附属物以及孢子囊群排列在内的七个形态特征，对于识别鳞毛蕨科不同的主要分支和分支具有参考价值。基于系统发育重建和形态学分析，我们提出了一个更新的鳞毛蕨科科级以下分类，包括七个亚科和24个属，其中包括四个新提出的亚科（刺齿亚科、假复叶耳蕨亚科、拟贯众亚科和多羽耳蕨亚科）。总结了每个亚科的形态特征组合，并提供了一个检索表。PPG I意义上的大多数属都被认可，其中 重新分类到鳞毛蕨亚科， 被视为 的同义词。引入了一个新属。这个修订后的分类将作为未来对蕨类植物中物种最丰富的鳞毛蕨科进行分类学、生物地理学和多样化研究的基础框架。
