Voynikov Yulian, Balabanova Vessela, Gevrenova Reneta, Zheleva-Dimitrova Dimitrina
Department of Chemistry, Faculty of Pharmacy, Medical University, 2 Dunav Str., 1000 Sofia, Bulgaria.
Department of Pharmacognosy, Faculty of Pharmacy, Medical University, 2 Dunav Str., 1000 Sofia, Bulgaria.
Plants (Basel). 2023 Jan 14;12(2):390. doi: 10.3390/plants12020390.
Herein, a chemophenetic significance, based on the phenolic metabolite profiling of three (, and ) and two species ( and ), coupled to morphometric data, is presented. A set of twelve morphometric characters were recorded from each plant species and used as predictor variables in a linear discriminant analysis (LDA) model. From a total 75 observations (15 from each of the five species), the model correctly assumed their species' membership, except for 2 observations. Among the studied species, and presented the greatest morphological similarity. A phytochemical profiling of phenolic specialized metabolites by UHPLC-Orbitrap-MS revealed 46 hydroxybenzoic, hydroxycinnamic, and acylquinic acids and their derivatives, 1 coumarin and 21 flavonoids. Hierarchical and PCA clustering applied to the phytochemical data corroborated the similarity of and , observed in the morphometric analysis. This study contributes to the phylogenetic relationships between the tribe Senecioneae taxa and highlights the chemophenetic similarity/dissimilarity of the studied species belonging to and genera.
本文基于三种（、和）和两种（和）植物的酚类代谢产物谱，并结合形态测量数据，呈现了一种化学分类学意义。从每个植物物种记录了一组十二个形态测量特征，并将其用作线性判别分析（LDA）模型中的预测变量。在总共75个观测值（五个物种各15个）中，该模型正确地确定了它们的物种归属，但有2个观测值除外。在所研究的物种中，和表现出最大的形态相似性。通过超高效液相色谱-轨道阱质谱对酚类特殊代谢产物进行的植物化学分析揭示了46种羟基苯甲酸、羟基肉桂酸和酰基奎宁酸及其衍生物、1种香豆素和21种黄酮类化合物。应用于植物化学数据的层次聚类和主成分分析聚类证实了在形态测量分析中观察到的和的相似性。本研究有助于千里光族分类群之间的系统发育关系，并突出了所研究的属于和属的物种的化学分类学相似性/差异。
