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Structural character evolution in Pucciniomycotina: mitosis, septa, and hyphal branch initiation in two Helicogloea species

机译:普科尼霉素的结构性状进化:两种螺旋形叶片物种中有丝分裂,隔膜和亚酚枝起始

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摘要

Early diverging taxa of Ascomycota and Basidiomycota share similarities in subcellular characters of the spindle pole body (SPB), nuclear division, and septal pore apparatus, but our understanding of character evolution is incomplete because of the limited number of structural studies within the earliest diverging subphyla of Dikarya, Taphrinomycotina and Pucciniomycotina. Two species of Helicogloea (Atractiellomycetes) were analyzed for these characters and provide data on SPB and nuclear division for an additional class of Pucciniomycotina. A detailed analysis of septal pore apparatus for the Helicogloea species permits comparisons with those of other Pucciniomycotina and Ascomycota. The endogenous origin of hyphal branches is shown to occur in a third class of Pucciniomycotina. The full set of characters supports a close relationship between Atractiellomycetes and Pucciniomycetes.
机译:早期分歧的ascomycota和底霉素的亚霉菌股份中的亚细胞体特征在主轴体(SPB),核师和隔间孔设备的亚细胞特征中,但我们对角色演变的理解是不完整的,因为最早发散的亚伯里斯的结构研究有限数量的结构研究 迪克拉塔拉,Taphrinomycotina和Pucciniomycotina。 为这些角色分析了两种Helicogloea(Atractiellomycetes),并为另一类Pucciniomycotina提供SPB和核划分的数据。 对Helicogloea物种的隔膜孔装置进行详细分析允许与其他普科尼霉素和Ascomycota的比较。 显示亚酚枝的内源性起源在第三类Pucciniomycotina发生。 完整的字符支持atractiellomycetes和pucciniomycetes之间的密切关系。

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