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	基于IT和matK序列的兰科沼兰族分子系统研究及二新种
其他题名	Phylogenetic analysis of Malaxideae (Orchidaceae: Epidendroideae) : two new species based on the combined nr DNA ITS and chloroplast mat K sequences
	唐光大 ; 张国强 ; 洪文君 ; 仲健 ; 庄雪影
来源期刊	广西植物
ISSN	1000-3142
出版年	2015
卷号	35 期号:4 页码:447-463
中文摘要	沼兰族是兰科植物的大族之一.约2 000种，除了极地和沙漠地区.全球均有分布。该族植物主要分布在热带地区.尤其在东南亚、热带美洲、非洲以及澳大利亚等地区种类非常丰富。目前，已有关于该族植物形态和分子系统的研究，但有关该族亚族和属间的系统关系尚不清楚，属的界定争议也较大。该文基于核基因片段ITS和叶绿体基因片段mat K序列.采用最大简约法、最大似然法贝叶斯推理分析法.对现有沼兰族主要属的123种植物和10个外类群植物进行了分子系统学研究。结果表明：沼兰族主要分为3个亚族分支，包括附生的鸢尾兰亚族(Oberoniinae)、地生的羊耳蒜亚族(Liparidinae)和沼兰亚族分支（Crepldium clade）。鸢尾兰亚族包括6个属、羊耳蒜亚族分支包括5个属、沼兰亚族分支包括4个属：丫瓣兰亚族(Ypsilorchidinae)应归并为鸢尾兰亚族;Disticholiparis属与Stichirkis属的模式标本相同.应并入Stlchorkis属；沼兰属(Crepidium）和无耳沼兰属(Dienia)的唇瓣结构差异较大.但二者均为单系类群。此外，在收集野外实验材料过程中.发现了2种产自中国西南部和越南北部的沼兰族新种.分别命名为麻栗坡羊耳蒜（Platystyliparis malipoenis G. D. Tang,X. Y. Zhuang & Z. J. Liu)和秉滔羊耳蒜（Cestichis pingtaoi G. D. Tang.X. Y. Zhuang & Z. J. Liu)。
英文摘要	Malaxideae is a larger cosmopolitan orchid tribe consisting of nearly 2 000 species and is distributed worldwide. excluding the polar and desert regions. It is abundant in the tropical regions.particularly in Australia.and the tropical Asia.Southeast Asia.the tropical Americas and Africa. Molecular and morphological analyses have been performed to establish the phylogenetic relationships within this tribe. However.the subtribe and intergeneric relationships remain unclear, and the genus definition of this trlbe is considerably controversial. The maximum parsimony. maximum likelihood and Bayesian inference analyses were performed based on the combined sequences of the nuclear ITS and chloroplast mat K genes of 133 taxa (10 other allied species as outgroups).which represent nearly all of the major genera of the Malaxideae. These results suggested that Malaxideae could be divided into three clades.the epiphytic Oberonnnae.the terrestrial Liparidinae.and a terrestrial Crepidium clade. The Oberoniinae and Liparidinae could be divided into six genera and five genera respectively,and Crepidium clade cam poses of four genera. The subtribe Ypsilorchidinae should be attributed to Oberonnnae. Disticholi pans should be removed because it shared the same type with Stichorkis. The phylogenetic relationship of Crepidium and Dienia is monophyletic. although they have different lip structures. In addition, two new species found in Southwest China and northern Vietnam.Plat ystyliparis mal i toensis G. D. Tang.X. Y. Zhuang & Z. J. Liu and Cestichis pmgtaoi G. D. Tang.X. Y. Zhuang & Z. J. Liu.were described based on the molecular analysis and morphological observation.
中文关键词	沼兰族 ; 核基因ITS ; 系统学 ; 并系类群
英文关键词	Malaxideae nrDNA ITS mat K phylogeny Paraphyletic matK
语种	英语
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5503028
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232866
作者单位	1.College of Forestry and Landscape Architecture. South China Agricultural University, Shenzhen Kev Laboratory for Orchid Conservaton and Utilization, Guangzhou, Guangdong 510642, China; 2.The National Orchid Coservation Center of China and The Orchid Conservation and Research Center of Shenzhen, Shenzhen Kev Laboratory for Orchid Conservaton and Utilization, Shenzhcn, 518114; 3.College of Forestry and Landscape Architecture. South China Agricultural University, Guangzhou, Guangdong 510642, China
推荐引用方式 GB/T 7714	唐光大,张国强,洪文君,等. 基于IT和matK序列的兰科沼兰族分子系统研究及二新种[J],2015,35(4):447-463.
APA	唐光大,张国强,洪文君,仲健,&庄雪影.(2015).基于IT和matK序列的兰科沼兰族分子系统研究及二新种.广西植物,35(4),447-463.
MLA	唐光大,et al."基于IT和matK序列的兰科沼兰族分子系统研究及二新种".广西植物 35.4(2015):447-463.