| 老鸦瓣属(百合科)的恢复: 以形态性状的分支分析为依据 |
| |
| 引用本文： | 谭敦炎,张震,李新蓉,洪德元.老鸦瓣属(百合科)的恢复: 以形态性状的分支分析为依据[J].中国科学院研究生院学报,2005,1(3):262-270. |
| |
| 作者姓名： | 谭敦炎 张震 李新蓉 洪德元 |
| |
| 作者单位： | 1(中国科学院植物研究所系统与进化植物学重点实验室 北京 100093) 2(新疆农业大学林学院 乌鲁木齐 830052) |
| |
| 摘 要： | 老鸦瓣群(Amana群)是百合科中的一个东亚特有类群,仅分布在中国中东部、日本和朝鲜半岛。该类群在形态上与广义郁金香属Tulipa L.相似,但也具有与子房近等长的花柱以及2-3(-4)个苞片等与郁金香属不同的形态特征。有关该类群是否应置于郁金香属中或是否应独立为属的问题长期以来存在争议。为了澄清该问题,我们对产于中国的Amana群进行了广泛的标本室和野外形态观察,并采用分支系统学方法,对该类群3个种以及郁金香属的其他15种植物(包括土耳其的3个种)的28个形态性状数据进行了分支分析。结果表明广义郁金香属并非是一个单系类群。Amana群与广义郁金香属的其他4个组sect. Orithyia、sect. Eriostemones、sect. Leiostemones、sect. Tulipanum以及Lloydia属的两个种共同构成一个大支的3个分支。我们对广义郁金香属5个组共19种植物的ITS以及trnL-F分子序列综合分析的结果也表明：sect. Tulipanum、sect. Leiostemones、sect. Eriostemones和sect. Orithyia构成一大支,Amana群和猪牙花属的Erythronium sibiricum构成另一大支。因此,我们认为Amana群应从广义郁金香属中独立出来,恢复其老鸦瓣属Amana Honda作为属的分类地位。
|
| 关 键 词： | 百合科 郁金香属 老鸦瓣属 形态性状 分支分析 |
Restoration of the genus Amana Honda (Liliaceae) based on a cladistic analysis of morphological characters |
| |
| TAN Dun-Yan,ZHANG Zhen,LI Xin-Rong,HONG De-Yuan.Restoration of the genus Amana Honda (Liliaceae) based on a cladistic analysis of morphological characters[J].Journal of the Graduate School of the Chinese Academy of Sciences,2005,1(3):262-270. |
| |
| Authors: | TAN Dun-Yan ZHANG Zhen LI Xin-Rong HONG De-Yuan |
| |
| Institution: | 1(Laboratory of Systematic and Evolutionary Botany, Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China) 2(College of Forestry Sciences, Xinjiang Agricultural University, Urumqi 830052, China) |
| |
| Abstract: | Amana is a group in the Liliaceae (s.s.) confined to central and eastern China, Japan and Korean peninsula. This group is similar to Tulipa L. by having leaves 2-5 basal or cauline, flower usually solitary, erect, stamens 6, 3 longer, and anthers basifixed, but differs in having 2-3(-4) opposite or verticillate bracts at the upper part of the flowering stem and a longer style as long as ovary. It has long been in dispute if the Amana group should be included in the genus Tulipa or treated as an independent genus of its own. Based on both herbarium and field observations on the Chinese taxa of Tulipa (s.l.), particularly those in the Amana group, a cladistic analysis of 18 species (including 3 species from Turkey) of Tulipa was carried out in the present work. Twenty-eight morphological characters were used in unweighted pair-group method using the maximum parsimony (MP) tree construction executed with PAUP 4.0b4a program. The results show that Tulipa (s.l.) is not a monophyletic group but split into two clades: one is Amana group, and the other comprises Orithyia, Eriostemones, Leiostemones and Tulipanum. Our unpublished data of ITS and trnL-F sequences in 19 species representing five sections of Tulipa (s.l.) also show that sect. Tulipanum, sect. Leiostemones, sect. Eriostemones and sect. Orithyia form one clade, whereas the Amana group and Erythronium form another clade. The Amana group is thus better treated as an independent genus. |
| |
| Keywords: | Liliaceae Tulipa Amana morphological character cladistic analysis |
|
| 点击此处可从《中国科学院研究生院学报》浏览原始摘要信息 |
| 点击此处可从《中国科学院研究生院学报》下载免费的PDF全文 |
|
