Author:
Chung Shih-Wen,Huang Wei-Jie,Chen Zhi-Hao,Liu Shih-Hui
Abstract
Abstract
Background
Blumea plants are widely distributed in the tropical areas of Asia, Africa, and Australia, especially tropical Asia. Limited studies left the taxonomy and infrageneric phylogeny of Blumea insubstantial. Here, a new species, Blumea chishangensis S. W. Chung, Z. H. Chen, S. H. Liu & W. J. Huang, from Taiwan is described, and an extended phylogeny is reconstructed to provide new perceptions of Blumea evolution.
Results
The new species is distinguished from B. hieraciifolia by the following features: leaf blade sparsely pilose or glabrescent (vs. silky villous), the leaves margins regularly remote mucronulate (vs. double serrate or dentate), capitula pedicelled (vs. capitula sessile or subsessile), and leaves basal rosette or sub-basal rosette and a few cauline (vs. mostly cauline). Phylogenetic analysis based on the ITS, trnL-trnF, and trnH-psbA regions places the new species in the subclade II in B. lacera clade and shows a close relationship with B. axillaris and B. oxyodonta. A key to Blumea species in Taiwan and the studied species in the subclade II is provided. Moreover, the evolutionary inferences of B. conspicua, B. linearis, and B. sinuata are first reported here. The paraphyly of B. formosana and B. sinuata are also revealed for the first time.
Conclusions
Both morphological and molecular data support that B. chishangensis is a new species. Our phylogeny highlights the need for further taxonomic and evolutionary studies on Blumea.
Funder
Taiwan Forestry Research Institute
Ministry of Science and Technology, Taiwan
National Sun Yat-sen University
Publisher
Springer Science and Business Media LLC
Reference48 articles.
1. Abdullah MF, Rahim A, Heidari P, Ahmed I, Poczai P (2021) Comparative plastome analysis of Blumea, with implications for genome evolution and phylogeny of Asteroideae. Ecol Evol 11:7810–7826
2. Anderberg AA, Eldenäs P (2007) XVII. Tribe Inuleae Cass. In: Kadereit JW, Jeffrey C (eds) The families and genera of vascular plants flowering plants-Eudicot, Asterales, vol 8. Springer, Berlin, pp 374–390
3. Anderberg AA, Eldenäs P, Bayer RJ, Englund M (2005) Evolutionary relationships in the Asteraceae tribe Inuleae (incl. Plucheeae) evidenced by DNA sequences of ndhF; with notes on the systematic positions of some aberrant genera. Org Divers Evol 5:135–146
4. Bremer B, Struwe L (1992) Phylogeny of the Rubiaceae and the Loganiaceae: congruence or conflict between morphological and molecular data? Am J Bot 79:1171–1184
5. Chen YS, Anderberg AA (2011) Blumea. In: Wu ZY, Raven PH, Hong DY (eds) Flora of China. Asteraceae, vol 20–21. Science Press, Beijing, pp 829–837