Allium canariense (Amaryllidaceae), a species endemic to the Canary Islands

Allium canariense (Amaryllidaceae), a species endemic to the Canary Islands
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Allium canariense(石蒜科),加那利群岛特有物种

DOI:
10.11646/phytotaxa.221.1.1
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发表时间:
2015
期刊:
影响因子:
1.1
通讯作者:
Schoenfelder
Schoenfelder
中科院分区:
生物学4区
文献类型:
--
作者:
Friesen;Herden;Schoenfelder

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本文对加那利群岛Molium组的葱属种作了订正。作为欧亚亚属Amerallium代表的系统发育修订的一部分,我们发现在加那利群岛的植物群的植物区系出版物的命名和分类中存在很大的分歧。在加那利群岛的植物群中至少有四种被提及的Molium组植物:Allium roseum,A. subvillosum,A. subhirsutum和A.三叶草为了更好地了解Molium组中一组密切相关物种的系统发育关系,我们使用了最大简约和贝叶斯分析7个分类群的组合核(ITS-rRNA基因的内部转录间隔区和ETS-外部转录间隔区)和三个叶绿体(rpl 32-trnL和trnL-trnF基因间间隔区和rps 16内含子)数据集。为了比较A.岛之间的canariense种群,我们使用的ISSR方法。我们发现,只有一个物种的部分Molium发生在加那利群岛的特有种加那利葱,密切相关的葱subvillosum。形态学和分子生物学特征证实了该新种的独立性。并对它们的发生、起源和地理分布进行了讨论。
A revision of the Allium species of the section Molium in the Canary Islands is presented. As part of the phylogenetic revision of the Eurasian representatives of the subgenus Amerallium we found large disagreements in the nomenclature and taxonomy of Allium roseum in the floristic publications on the flora of the Canary Islands. At least four species of the section Molium are mentioned for the flora of the Canary Islands: Allium roseum, A. subvillosum, A. subhirsutum and A. trifoliatum. To learn more about the phylogenetic relationships within a group of closely related species of the section Molium, we used maximum parsimony and Bayesian analyses of combined nuclear (ITS—internal transcribed and ETS—external transcribed spacers of rRNA genes) and three chloroplast (rpl32-trnL and trnL-trnF intergenic spacers and rps16 intron) datasets of 7 taxa. For comparison of the relationships of A. canariense populations between the islands we used the ISSR method. We found that only one species of the section Molium occurs in the Canary Islands—the endemic species Allium canariense, closely related to Allium subvillosum. Independence of this new species has been confirmed by morphological and molecular features. Discussion on phylogeny, origin and geographic distribution is provided.
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