Diplazoptilon (Asteraceae) is merged with Saussurea based on evidence from morphology and molecular systematics

doi:10.11646/phytotaxa.236.1.4

	Diplazoptilon (Asteraceae) is merged with Saussurea based on evidence from morphology and molecular systematics
	Yuan, Qian 1; Bi, Yan-Chao ; Chen, You-Sheng
	2015
发表期刊	PHYTOTAXA
ISSN	1179-3155
卷号	236 期号:1 页码:53-61
摘要	Diplazoptilon is a monotypic genus belonging to the Saussurea group (Asteraceae, Cardueae). We undertake micromorphological and molecular studies to discuss the systematic position of this genus. The achene of Diplazoptilon picridifolium is obconical, 4-angled, with a small crown on the apical rim. The pollen of D. picridifolium are spheroidal, narrowly tricolpate, with the exine reticulate and shortly spinulate. The micromorphological characters of D. picridifolium are well in accordance with those of the genus Saussurea. Our molecular analyses demonstrate that Diplazoptilon and Saussurea form a strongly supported clade. Taking into account the great similarities in achene, pappus and pollen morphology between Diplazoptilon and Saussurea, it is reasonable to merge Diplazoptilon with Saussurea. From our molecular work and the gross-morphological characters, D. picridifolium should be a member of Saussurea subgen. Saussurea sect. Strictae. There are more than one species with a plumose outer pappus in the genus Saussurea, and the occurrences the plumose outer pappus in the genus Saussurea may have had parallel origins.
关键词	Cardueae Compositae morphology phylogeny
学科领域	Plant Sciences
DOI	10.11646/phytotaxa.236.1.4
收录类别	SCI
语种	英语
WOS关键词	QINGHAI-TIBETAN PLATEAU ; CARDUEAE ASTERACEAE ; EVOLUTION ; COMPOSITAE ; PHYLOGENY ; RADIATION ; NUCLEAR
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000366593300004
出版者	MAGNOLIA PRESS
文献子类	Article
出版地	AUCKLAND
EISSN	1179-3163
资助机构	National Natural Science Foundation of China [31370226, 31110103911]
作者邮箱	maple@ibcas.ac.cn
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25839
专题	系统与进化植物学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yuan, Qian,Bi, Yan-Chao,Chen, You-Sheng. Diplazoptilon (Asteraceae) is merged with Saussurea based on evidence from morphology and molecular systematics[J]. PHYTOTAXA,2015,236(1):53-61.
APA	Yuan, Qian,Bi, Yan-Chao,&Chen, You-Sheng.(2015).Diplazoptilon (Asteraceae) is merged with Saussurea based on evidence from morphology and molecular systematics.PHYTOTAXA,236(1),53-61.
MLA	Yuan, Qian,et al."Diplazoptilon (Asteraceae) is merged with Saussurea based on evidence from morphology and molecular systematics".PHYTOTAXA 236.1(2015):53-61.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
phytotaxa.236.1.4.pd（2309KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文