A new species of Saussurea (Asteraceae) from Tibet and its systematic position based on ITS sequence analysis

NWIPB OpenIR

	A new species of Saussurea (Asteraceae) from Tibet and its systematic position based on ITS sequence analysis
	Wang, YJ ; Pan, JT ; Liu, SV ; Liu, JQ
	2005-03-01
发表期刊	BOTANICAL JOURNAL OF THE LINNEAN SOCIETY ; Wang Yujin, Pan Jintang, Liu Shangwu, Liu Jianquan.A new species of Saussurea (Asteraceae) from Tibet and its systematic position based on ITS sequence analysis.BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2005,147(3):349-356
摘要	A new species of Saussurea, S. erecta S. W Liu, J. T Pan A J. Q. Liu sp. nov., is described from Tibet. It resembles S. kingii but may be distinguished by having distinct stems and glabrous achenes. Saussurea kingii was placed in sect. Pseudoeriocoryne of subgen. Eriocoryne; this section was circumscribed by acaulescence and an inflorescence with congested capitula surrounded by a rosette of leaves. The discovery of S. erecta with distinct stems, cauline leaves and corymbose capitula blurred the delimitation of sect. Pseudoeriocoryne and suggested that the section may be polyphyletic. Both the close relationship and the significant difference between S. erecta and S. kingii were confirmed by analyses of nrDNA ITS sequences. The resulting phylogenies based on ITS data further suggest that Saussurea sect. Pseudoeriocoryne, as traditionally defined, does not constitute a monophyletic group. The rapid radiation and speciation of Saussurea in the Qinghai-Tibetan Plateau, as inferred from ITS phylogeny, are discussed. (c) 2005 The Linnean Society of London.; A new species of Saussurea, S. erecta S. W Liu, J. T Pan & J. Q. Liu sp. nov., is described from Tibet. It resembles S. kingii but may be distinguished by having distinct stems and glabrous achenes. Saussurea kingii was placed in sect. Pseudoeriocoryne of subgen. Eriocoryne; this section was circumscribed by acaulescence and an inflorescence with congested capitula surrounded by a rosette of leaves. The discovery of S. erecta with distinct stems, cauline leaves and corymbose capitula blurred the delimitation of sect. Pseudoeriocoryne and suggested that the section may be polyphyletic. Both the close relationship and the significant difference between S. erecta and S. kingii were confirmed by analyses of nrDNA ITS sequences. The resulting phylogenies based on ITS data further suggest that Saussurea sect. Pseudoeriocoryne, as traditionally defined, does not constitute a monophyletic group. The rapid radiation and speciation of Saussurea in the Qinghai-Tibetan Plateau, as inferred from ITS phylogeny, are discussed. (c) 2005 The Linnean Society of London.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/15212
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Wang, YJ,Pan, JT,Liu, SV,et al. A new species of Saussurea (Asteraceae) from Tibet and its systematic position based on ITS sequence analysis[J]. BOTANICAL JOURNAL OF THE LINNEAN SOCIETY, Wang Yujin, Pan Jintang, Liu Shangwu, Liu Jianquan.A new species of Saussurea (Asteraceae) from Tibet and its systematic position based on ITS sequence analysis.BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2005,147(3):349-356,2005.
APA	Wang, YJ,Pan, JT,Liu, SV,&Liu, JQ.(2005).A new species of Saussurea (Asteraceae) from Tibet and its systematic position based on ITS sequence analysis.BOTANICAL JOURNAL OF THE LINNEAN SOCIETY.
MLA	Wang, YJ,et al."A new species of Saussurea (Asteraceae) from Tibet and its systematic position based on ITS sequence analysis".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY (2005).