Rhododendron kuomeianum (Ericaceae), a new species from northeastern Yunnan (China), based on morphological and genomic data
文献类型： 外文期刊
作者： Chang, Yu-Hang 1 ; Yao, Gang 1 ; Neilsen, Jens 3 ; Liu, De-Tuan 1 ; Zhang, Lu 4 ; Ma, Yong-Peng 1 ;
作者机构： 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Integrat Conservat Plant Species Extremel, Kunming 650201, Yunnan, Peoples R China
2.Chinese Acad Sci, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
3.Dobbies Garden Ctr, Perth DD2, Scotland
4.Yunnan Acad Agr Sci, Flower Res Inst, Kunming 650051, Yunnan, Peoples R China
关键词： Rhododendron; New species; RAD-seq; Phylogenetic position
期刊名称：PLANT DIVERSITY （ 影响因子：2.528； ）
ISSN： 2096-2703
年卷期： 2021 年 43 卷 4 期
页码：
收录情况： SCI
摘要： Rhododendron kuomeianum Y.H. Chang, J. Nielsen & Y.P. Ma, a new species of Rhododendron (Ericaceae) within subsect. Maddenia in sect. Rhododendron from Yiliang County, NE Yunnan, China, is described and illustrated. The new species is similar to R. valentinianum, but it can be easily distinguished by its sparse scales on the abaxial surface of the leaf blade, fewer flowers per inflorescence and white corolla with pale red margins. There are also differences in the widths of calyx lobes, leaf blade shape and indumentum characteristics of the petiole between the new species and Rhododendron linearilobum. We confirmed that R. kuomeianum is a new species closely related to R. valentinianum and R. changii with phylogenomic studies of 10 species within this subsection based on restriction site-associated DNA sequencing (RADseq) data. These phylogenomic analyses also clarified additional taxonomic problems in this subsection previously raised by morphological analysis. Our findings make a strong case for using next-generation sequencing to explore phylogenetic relationships and identify new species, especially in plants groups with complicated taxonomic problems. Copyright (C) 2021 Kunming Institute of Botany, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.
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