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題 名 | 臺灣產薯蕷屬植物親緣關係之研究=Phylogenetic Relationship of the Genus Dioscorea L. (Dioscoreaceae) of Taiwan |
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作 者 | 徐光明; 蔡進來; 陳明義; | 書刊名 | 台灣生物多樣性研究 |
卷 期 | 12:3 2010.07[民99.07] |
頁 次 | 頁291-302 |
分類號 | 377.2107 |
關鍵詞 | 薯蕷屬; 葉綠體基因片段; 親緣關係; 臺灣; Dioscorea; Chloroplast genes; Phylogeny; Taiwan; |
語 文 | 中文(Chinese) |
中文摘要 | 多種薯蕷屬植物為經濟作物。為探討台灣產薯蕷屬植物之親緣關係,本研究以matK 與rbcL 二段葉綠體基因片段作為遺傳標誌,自台灣本島及離島採集16 種薯蕷屬植物,並從GenBank 下載8 種薯蕷屬植物序列進行比對,使用PAUP 軟體進行neighbor joining、maximum parsimony 及maximum likelihood 親緣關係分析,並與Bayesian 樹狀圖整合呈現。結果顯示台灣產薯蕷屬植物主要分為二大分支,一為根狀莖節 (section Stenophora);另一分支包含丁字形毛節 (section Combilium)、基生翅節 (section Opsophyton)、複葉節 (section Botryosicyos)、白薯榔節 (section Lasiophyton) 及周生翅節 (section Enantiophyllum) 5 節,這5 節之親緣關係在此分支中亦可明確區分開來。本研究之分子數據演算結果與形態分類相吻合,支持台灣產薯蕷屬植物,在屬階層之下分屬6 節的分類架構。 |
英文摘要 | Several species of the genus Dioscorea (Dioscoreaceae) are commercially important cultivated plants.We used DNA sequences of the chloroplast genes rbcLand matK to conduct phylogenetic analysis of 16 species of Dioscorea from Taiwan with 8 species of China, Thailand and Madagascar retrieved from GenBank as the referent species. The phylogenetic trees were constructed with the neighbor joining, maximum parsimony, maximum likelihood, and Bayesian methods. The phylogenetic tree reconstructed revealed that Taiwan's Dioscorea were divided into two clades; clade A is the section Stenophora and clade B is composited of the sections Combilium, Opsophyton, Botryosicyos, Lasiophyton and Enantiophyllum. The phylogenetetic relationship of the Dioscorea in Taiwan based on the cpDNA sequences agreed with that derived from the morphological characters. The datasets also supported the infrageneric structure. |
本系統中英文摘要資訊取自各篇刊載內容。