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题名: A multidisciplinary approach reveals hidden taxonomic diversity in the morphologically challenging Taxus wallichiana complex
作者: Moeller, Michael1, 4; null(高连明)1; Mill, Robert R.4; null(刘杰)1, 2; Zhang, De-Quan1, 2; Poudel, Ram C.1, 2, 3; null(李德铢)1, 2
刊名: TAXON
出版日期: 2013-12-01
卷号: 62, 期号:6, 页码:1161-1177
关键词: differentiation matrix ; multivariate analysis ; phytogeography ; population-level sampling ; taxonomy ; Taxus calcicola
文章类型: Article
英文摘要: Addressing the taxonomy of morphologically complex groups can be challenging. Correlating results from multivariate morphological analyses and molecular data and reconciling these with geographic distributions allowed us to address the classification of the taxonomically difficult Taxus wallichiana complex in China and surrounding areas. We used 27 morphological characters (phenotype) and sequences of the chloroplast trnL-F intron/spacer region (genotype) on 1240 samples of 79 populations and 43 type and paratype specimens and demonstrated a strong correlation between phenotype and genotype and geographic distribution. We were able to define the number of taxonomically discrete units in the complex and delineate the geographic distribution of five species, T chinensis, T florinii, T mairei, T wallichiana and the here described new species T calcicola in China and adjacent regions. These are much fewer than the number of recently proposed species and these exhibit greatly non-overlapping and continuous distributions. Based on descriptions of species-"typical" specimens, we prepared species-specific morphometric profiles, that allowed the generation of a species differentiation matrix, allowing the quick selection of the most suitable characters for the separation of any species pair. This work represents a step forward towards the completion of a workable taxonomy of Asian Taxus.
类目[WOS]: Plant Sciences ; Evolutionary Biology
研究领域[WOS]: Plant Sciences ; Evolutionary Biology
关键词[WOS]: MOLECULAR-DATA ; TAXACEAE ; DNA ; DELIMITATION ; CHLOROPLAST ; YEWS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000335124600005
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/19241
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650201, Yunnan, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Plant Germplasm & Genom Ctr, Kunming 650201, Yunnan, Peoples R China
3.Univ Chinese Acad Sci, Kunming Coll Life Sci, Kunming 650201, Yunnan, Peoples R China
4.Royal Bot Garden Edinburgh, Edinburgh EH3 5LR, Midlothian, Scotland
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