Taxonomic evaluation of Miscanthus nudipes (Poaceae) based on morphological and molecular evidence

doi:10.11646/phytotaxa.205.1.1

	Taxonomic evaluation of Miscanthus nudipes (Poaceae) based on morphological and molecular evidence
	Ma, Hong-Zheng ; Cai, Zhe ; Zhang, Fu-Min ; Zhang, Hui ; Ge, Song; Dai, Si-Lan ; Chen, Wen-Li
	2015
发表期刊	PHYTOTAXA
ISSN	1179-3155
卷号	205 期号:1 页码:1-20
摘要	Miscanthus species including the famous energy plant M. x giganteus are considered to be second-generation energy crops. Miscanthus nudipes is an endemic species from Himalaya-Hengduan Mountains and provides important germplasm for Miscanthus breeding given its high tolerance to frost and drought. However, the taxonomy of this species remains controversial in terms of intraspecific classification, with one to nine subspecies or species recognized previously. The variation patterns of the morphological characters are not understood clearly as there have been no intensive analyses of the morphological variation across individuals and populations. Here, by sampling 15 natural populations from the entire distribution area of M. nudipes, we investigate patterns of population variation based on 39 quantitative and nine qualitative morphological characters and 14 microsatellite loci, with the aim to provide a reliable taxonomic treatment of this important species. Morphological analyses from ANOVA, UPGMA and PCA indicate that M. nudipes populations show significant differences between the Himalayas and Hengduan Mountains. A neighbor-joining tree and principle coordinates analysis of the microsatellite data support the results of the morphological analyses. Based on our results, we recognize two subspecies under Miscanthus nudipes (M. nudipes subsp. nudipes and M. nudipes subsp. yunnanensis) and provide a taxonomic treatment for the species. We propose three diagnostic characters for the subspecies identification, i.e., the ratio of callus hair length to spikelet length, the hairiness of the panicle axis and the hairiness of the peduncle.
关键词	classification Hengduan Mountains Himalayas morphology microsatellite markers
学科领域	Plant Sciences
DOI	10.11646/phytotaxa.205.1.1
收录类别	SCI
语种	英语
WOS关键词	GENETIC-VARIATION ; DIVERSITY ; SOFTWARE ; GRASSES ; TRAITS ; PLANTS ; HAIRY ; DNA
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000353120800001
出版者	MAGNOLIA PRESS
文献子类	Article
出版地	AUCKLAND
EISSN	1179-3163
资助机构	Chinese Academy of Sciences [KZCX2-YW-034] ; National Natural Science Foundation of China [31470300, 91131902, 31070168]
作者邮箱	silandai@sina.com ; chenwl@ibcas.ac.cn
引用统计	被引频次：3[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/2S10CLM1/25600
专题	系统与进化植物学国家重点实验室
作者单位	1.[Ma, Hong-Zheng 2.Beijing Forestry Univ, Coll Landscape Architecture, Beijing 100083, Peoples R China 3.Cai, Zhe 4.Zhang, Fu-Min 5.Zhang, Hui 6.Ge, Song 7.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Ma, Hong-Zheng,Cai, Zhe,Zhang, Fu-Min,et al. Taxonomic evaluation of Miscanthus nudipes (Poaceae) based on morphological and molecular evidence[J]. PHYTOTAXA,2015,205(1):1-20.
APA	Ma, Hong-Zheng.,Cai, Zhe.,Zhang, Fu-Min.,Zhang, Hui.,Ge, Song.,...&Chen, Wen-Li.(2015).Taxonomic evaluation of Miscanthus nudipes (Poaceae) based on morphological and molecular evidence.PHYTOTAXA,205(1),1-20.
MLA	Ma, Hong-Zheng,et al."Taxonomic evaluation of Miscanthus nudipes (Poaceae) based on morphological and molecular evidence".PHYTOTAXA 205.1(2015):1-20.

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