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首页> 外文期刊>Genetic Resources and Crop Evolution >The origin of Datura metel (Solanaceae): genetic and phylogenetic evidence
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The origin of Datura metel (Solanaceae): genetic and phylogenetic evidence

机译：曼陀罗（茄科）的起源：遗传和系统发育证据

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摘要

Using the analysis of nine isozyme systems and cladistic analysis of 32 morphological characters of the Mexican species of the section Dutra of the genus Datura, evidence was sought on the origin of the cultivated D. metel L. The genetic similarity and the phylogenetic relationship suggest that D. metel is related more closely to D. inoxia Mill. than to the other taxa of the section Dutra based upon the small genetic distance between them. The cladistic analysis revealed two main clades: the long-lived, tuberous rooted perennials (D. inoxia, D. lanosa A.S. Barclay ex Bye, D. metel, and D. wrightii Regel) and the tap-rooted annuals (D. discolor Bernh., D. kymatocarpa A.S. Barclay, D. leichhardtii F.V. Muell. ex Benth. ssp. pruinosa (Greenm.) Barclay ex Hammer (syn.: D. pruinosa Greenm.), D. reburra A.S. Barclay). Datura inoxia is the sister taxon of D. metel next to which is D. wrightii while D. lanosa is the basal taxon of this group. The combination of genetic and cladistic data indicates that D. inoxia is most likely the progenitor of D. metel.
机译：通过对9种同工酶系统的分析和对曼陀罗属杜特拉（Dutra）属墨西哥部分的32种形态特征的分类分析，寻找了栽培D. metel L.起源的证据。遗传相似性和系统发育关系表明D. metel与D. inoxia Mill密切相关。而不是Dutra部分的另一个分类单元，因为它们之间的遗传距离较小。进化论分析揭示了两个主要进化枝：长寿的块茎根多年生植物（D. inoxia，D。lanosa AS Barclay ex Bye，D。metel和D. wrightii Regel）和自生根的年生植物（D. discolor Bernh） ，D。kymatocarpa AS Barclay，D。leichhardtii FV Muell。出自Benth ssp。pruinosa（Greenm。），Barclay出自Hammer（syn .: D. pruinosa Greenm。），D。reburra AS出自Barclay。 Datura inoxia是D. metel的姊妹分类单元，其次是D. wrightii，而D. lanosa是该组的基础分类单元。遗传和分类数据的结合表明，D。inoxia很可能是D. metel的祖先。

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