荚蒾属植物分类研究进展

Review on the taxonomy of Viburnum L.

关键词:  荚蒾属, 分类学, 系统发育, 分类证据, 研究进展

Key words:  Viburnum, taxonomy, phylogeny, taxonomic evidence, research progress

摘要:

荚蒾属(Viburnum L.)是荚蒾科(Viburnaceae)木本植物类群,在全球广泛分布,全世界约有197种。该属多数成员具有重要的观赏价值和药用价值,明确其分类问题对资源的开发利用与保护具有关键性的指导意义。该文通过文献梳理,系统概述了荚蒾属的系统位置变动、属内分类研究历史、分类学证据与方法,并提出存在的问题和解决方法。(1)荚蒾属的系统位置在不同分类体系中历经多次调整,最终确定于川续断目(Dipsacales)荚蒾科内的稳定地位,是科内其他属共同的姐妹群。(2)该属的范围界定及属内阶元划分经反复修订,属内分类单元划分趋于清晰,当前通用“属-组-种”的分类阶元体系。(3)荚蒾属系统分类学研究现已形成多学科整合格局,涵盖形态学、微形态学、解剖学、细胞学、孢粉学、植物化学及分子系统学等多个领域,为分类修订提供了多维度证据支撑。(4)当前研究仍存在部分不足,部分分支的系统发育关系尚未完全厘清,部分近缘种种间及种下分类界限依旧模糊,分类系统有待进一步完善,属内全面采样及物种准确鉴定工作亟待加强。(5)未来应扩大样本范围、强化多区域调查与多维度整合研究,进一步完善分类系统,为该属资源的合理开发与有效保护提供科学依据。

Abstract:

Viburnum L. is a widely distributed woody genus in the family Viburnaceae, with approximately 197 species worldwide. Most species of this genus possess significant ornamental value and medicinal value, rendering them valuable resources for the horticulture and pharmaceutical industries. Clarifying their taxonomic ambiguities is crucial for guiding the development, utilization, and conservation of these resources. This paper systematically summarizes the changes of the systematic position of the genus Viburnum, intra-generic taxonomic history, as well as the main evidence and methods put forward the existing problems and solutions.(1)The systematic position of Viburnum has undergone multiple adjustments across different classification systems, and its stable status within the Viburnaceae(order Dipsacales)has finally been confirmed and it is the common sister group to all other genra in the family.(2)The delimitation of the genus and the division of its intra-generic taxa have also been revised repeatedly, evolving from the broad circumscription in early studies to the more refined classification, and the “genus-section-species” taxonomic hierarchy is currently widely accepted and applied in academic research, with the delimitation of major intra-generic taxa becoming relatively clear.(3)Contemporary research on the systematic taxonomy of Viburnum has formed an integrated multiple-disciplinary framework, incorporating evidence from morphology, micromorphology, anatomy, cytology, palynology, phytochemistry, and molecular systematics, which provides multi-dumensional evidential support for classification revision.(4)Current research still has some limitations, the phylogenetic relationships of some clades remain unresolved, taxonomic boundaries between certain closely related species and within some species are still ambiguous, the classification system of this genus requires further improvement, and comprehensive sampling and accurate species identification are urgently needed.(5)Future studies should expand the scope of sample collection and strengthen multi-regional surveys and integrative studies, and provide a scientific reference for the rational development and effective conservation of those resources of this genus.