背景:教派的系统地位。Tuberculata及其分类学最近引起了极大的关注。然而,定义教派特征的不同基础。Tuberculata导致该组植物之间存在许多分歧。金花茶和紫花茶一直是分类学争议的主题,并被视为同一物种的不同物种或品种。因此,重要的是使用多种方法,即,综合分类学,确定蓝花和紫花的分类地位。这是在形态学的基础上系统探索这两种植物的分类位置的第一个研究,解剖学,孢粉学和分子系统学。
结果:广泛的样本评论和实地调查表明,马尾花和马尾花存在许多差异,例如树干的数量(严重剥蚀与轻微剥离),叶型(光滑薄革质,闪亮的vs.光滑皮革,晦涩或略带光泽),叶缘(整个与锯齿),花类型(无柄vs.无柄),样式数量(3-4与3),和萼片(卵形vs.圆)。此外,C.neriifolia具有更独特的淡黄色花朵颜色,和树干蜕皮在马尾花中比在马尾花中更为严重。此外,叶表皮的微观形态分析表明,这两个物种在背斜壁中存在差异,气孔装置,和气孔簇,和基于花粉大小的花粉形态分析,发芽沟,以及极轴和赤道轴表明它们彼此不同。基于整个叶绿体基因组构建的系统发育树的结果,蛋白质编码基因,ITS2结果表明,紫菜和紫菜都聚集在不同的分支中,并获得了较高的支持。
结论:结果结合了形态学,解剖学,孢粉学,和分子系统学,以将蓝草和紫草都视为该教派中的独立物种。结核杆菌,物种名称继续像以前一样被使用。总之,阐明蓝花和紫花的分类地位加深了我们对教派系统分类的理解。结核杆菌.
BACKGROUND: The systematic status of sect. Tuberculata and its taxonomy have recently attracted considerable attention. However, the different bases for defining the characteristics of sect. Tuberculata has led to many disagreements among the plants in this group. Camellia neriifolia and Camellia ilicifolia have been the subject of taxonomic controversy and have been treated as different species or varieties of the same species. Therefore, it is important to use multiple methods, i.e., integrative taxonomy, to determine the taxonomic status of C. neriifolia and C. ilicifolia. This is the first study to systematically explore the taxonomic position of these two plants on the basis of Morphology, Anatomy, Palynology and Molecular Systematics.
RESULTS: Extensive specimen reviews and field surveys showed that many differences exist in C. neriifolia and C. ilicifolia, such as the number of trunk (heavily debarked vs. slightly peeling), leaf type (smooth thin leathery, shiny vs. smooth leathery, obscure or slightly shiny), leaf margin (entire vs. serrate), flower type (subsessile vs. sessile), number of styles (3-4 vs. 3), and sepal (ovate vs. round). Moreover, C. neriifolia has a more distinctive faint yellow flower color, and trunk molting was more severe in C. neriifolia than that in C. ilicifolia. In addition, micromorphological analysis of the leaf epidermis showed that the two species differed in the anticlinal wall, stomatal apparatus, and stomatal cluster, and pollen morphology analyses based on pollen size, germination furrow, and polar and equatorial axes showed that they are both distinct from each other. The results of the phylogenetic tree constructed based on the whole chloroplast genome, protein-coding genes, and ITS2 showed that both C. ilicifolia and C. neriifolia were clustered in different branches and gained high support.
CONCLUSIONS: The results combine morphology, anatomy, palynology, and molecular systematics to treat both C. neriifolia and C. ilicifolia as separate species in the sect. Tuberculata, and the species names continue to be used as they were previously. In conclusion, clarifying the taxonomic status of C. neriifolia and C. ilicifolia deepens our understanding of the systematic classification of sect. Tuberculata.