Bakalin Vadim A, Vilnet Anna A, Choi Seung Se, Nguyen Van Sinh
Laboratory of Cryptogamic Biota, Botanical Garden-Institute FEB RAS, 690024 Vladivostok, Russia.
Laboratory of Flora and Vegetation, Polar-Alpine Botanical Garden-Institute Kola SC RAS, 184209 Apatity, Russia.
Plants (Basel). 2020 Oct 23;9(11):1423. doi: 10.3390/plants9111423.
was found to be a formed by several strongly genetically different species. The taxonomic diversity in the group is the possible result of radiation in early stages; then, these taxa likely survived for a long time in similar environmental conditions, which resulted in stasis. Presently, the existing taxa are similar one to another and may be morphologically distinguished with difficulties. The most taxonomically valuable morphological characteristics include oil bodies and cells in the leaf segment features. The most diverse genotypes (the vast majority of which are treated here as distinct species) were found in amphi-Pacific Asia, which may reflect the evolutionary history of the genus or may be the consequence of more profound sampling in the macro-region in comparison with other parts of the Holarctic.
被发现是由几个遗传差异很大的物种组成。该类群中的分类多样性可能是早期辐射的结果；然后，这些分类单元可能在相似的环境条件下长期存活，从而导致停滞。目前，现有的分类单元彼此相似，在形态上难以区分。最具分类学价值的形态特征包括油体和叶段特征中的细胞。在环太平洋亚洲地区发现了最多样化的基因型（这里绝大多数被视为不同的物种），这可能反映了该属的进化历史，也可能是与全北区其他地区相比，该宏观区域采样更深入的结果。
