黏菌隶属于原生动物界，其个体发育过程反映了生物从单细胞向多细胞进化的趋势，在生物演化中处于十分重要的地位。白柄菌属是黏菌中特殊的类群，更是黏菌系统分类属级乃至科级间重要的过渡类群，因结构特异性导致其与若干相近属分类地位难以正确界定，明确该属及其相近属的分类学地位，对黏菌类群研究具重要的分类学意义。本项目拟借助形态学、个体发育和多基因系统学分析，深入开展白柄菌属及相近属系统分类学研究：1)借助传统形态学的分类技术，探明我国白柄菌属及其相近属的物种多样性；2)通过对典型类群个体发育的研究，明晰原质团类型及子实体发育方式等特性；3)通过SSUrRNA及COⅠ单基因或多基因序列分析，结合形态学与个体发育数据，综合分析属、种的发育关系，重新评价属级乃至科级的分类标准及分类框架，订正属、种分类的混乱，创建白柄菌属及其相近属贴近自然的分类系统。预期研究为黏菌系统学研究提供基础数据。

Myxogastria belong to the protozoan. Its ontogenetic process reflects the evolution trend of organisms from single cell to multi-cell, and plays an important role in the evolution of organisms. The genus Diachea is a special group of myxogastria, and it is also an important transitional group of myxogastria. Because of its structural specificity, it is difficult to define its taxonomic status correctly with some related genera. It is of great taxonomic significance to clarify the correct taxonomic status of Diachea and related genera for the study of myxogastria. With the help of morphological, ontogenetic and polygenic phylogenetic analysis, this project intends to carry out in-depth systematics studies of Diachea and related genera: 1) to ascertain the species diversity of Diachea and related genera in China with the help of traditional morphological taxonomic techniques; 2) to clarify the plasmoidium type and the sporocarp development mode by studying Ontogeny of Diachea and related genera. 3) Through SSUrRNA and COI single gene or multi-gene sequence analysis, combined with morphology, comprehensive analysis of genera and species development relationship, re-evaluation of generic and even family-level classification criteria and classification framework, revision of the confusion of genera and species classification, and establishment of a natural taxonomic system of Diachea and related genera. It is expected that this study will provide basic data for the systematics of myxogastria.