Seed morphological diversity of Pedicularis (Orobanchaceae) and its taxonomic significance

	Seed morphological diversity of Pedicularis (Orobanchaceae) and its taxonomic significance
	Liu, Min-Lu1,2,3 ; Yu, Wen-Bin 1,2; Li, De-Zhu1,2 ; Mill, Robert R.4; Wang, Hong1,2
通讯作者	Wang,H (reprint author),Chinese Acad Sci,Kunming Inst Bot,Key Lab Biodivers & Biogeog,Kunming 650201,Peoples R China.,wanghong@mail.kib.ac.cn
	2013-11-01
发表期刊	PLANT SYSTEMATICS AND EVOLUTION
ISSN	0378-2697
卷号	299 期号:9 页码:1645-1657
摘要	Mature seeds of 109 species of Pedicularis representing 13 groups according to Tsoong's infra-generic classification were investigated using light microscopy (LM) and scanning electron microscopy (SEM). The largest seeds occurred in P. superba (4.82 +/- A 0.32 mm x 2.18 +/- A 0.18 mm) and the smallest in P. crenata (0.95 +/- A 0.16 mm x 0.72 +/- A 0.08 mm). The individual seed weight ranged from 0.20 to 9.52 mg. There were two types of primary ornamentation, i.e. reticulate and undulate. Reticulate seeds were found in all examined species except for P. pantlingii and P. confluens. The reticulate seeds were divided into three subtypes, i.e. cristate-reticulate, regular-reticulate and membranous-reticulate. Among them, the cristate-reticulate and the undulate primary ornamentation are firstly reported. The inner tangential wall ornamentation was categorized into granulate, ruminate or striate. Seed characters seem to support the transfer of Pedicularis to Orobanchaceae from traditional Scrophulariaceae. Seed length, individual seed weight, primary ornamentation and inner tangential wall ornamentation were considered as potentially useful characters for infra-generic classification. Non-metric multidimensional scaling (NMDS) analyses indicated a clustering of some species in group 1 (Sceptrum) and all species in group 6 (Cyathophora), respectively. However, seed data were not highly congruent with Tsoong's classification for delimitation of existing groups. Some characters, such as seed shape, primary ornamentation, inner tangential wall ornamentation and epidermal cell shape could be applied to identification of some species in this genus.
关键词	Pedicularis Orobanchaceae Seed Characters Nmds Taxonomic Significance
学科领域	Plant Sciences ; Evolutionary Biology
收录类别	SCI
语种	英语
WOS记录号	WOS:000326291200003
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/17427
专题	中国科学院东亚植物多样性与生物地理学重点实验室
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650201, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Plant Germplasm & Genom Ctr, Kunming 650201, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 4.Royal Bot Garden Edinburgh, Edinburgh EH3 5LR, Midlothian, Scotland
推荐引用方式 GB/T 7714	Liu, Min-Lu,Yu, Wen-Bin,Li, De-Zhu,et al. Seed morphological diversity of Pedicularis (Orobanchaceae) and its taxonomic significance[J]. PLANT SYSTEMATICS AND EVOLUTION,2013,299(9):1645-1657.
APA	Liu, Min-Lu,Yu, Wen-Bin,Li, De-Zhu,Mill, Robert R.,&Wang, Hong.(2013).Seed morphological diversity of Pedicularis (Orobanchaceae) and its taxonomic significance.PLANT SYSTEMATICS AND EVOLUTION,299(9),1645-1657.
MLA	Liu, Min-Lu,et al."Seed morphological diversity of Pedicularis (Orobanchaceae) and its taxonomic significance".PLANT SYSTEMATICS AND EVOLUTION 299.9(2013):1645-1657.

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