Phylogenetic relationships in Nepeta L. (Lamiaceae) and related genera based on ITS sequence data
Phylogenetic relationships in Nepeta L. (Lamiaceae) and related genera based on ITS sequence data
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作者：
Jamzad, Z;Chase, MW;Jalili, A
测定了43种海参属植物的核糖体DNA内转录间隔区(NrITS)的序列，并与近缘关系较近的龙须菜属(Lallemantia)、青海龙须菜属(Dracocephalum)和龙须菜属(Aquache)以及外群(Lavandula、Stachys、NewCastelia和Prostanthera)的代表进行了比较。简约分析表明，海棠属为单系种，由5个主要的单系群组成，在以往的分类中，大多数种属于一个以上的科。这五个支系由。(1)Sect.Spartonepeta；(2)教派。Macronepeta+Spicatae；(3)组。海带+水母，P.P.+Oxynepeta+Schizocalyx+Macrostegiae；Capituliferae+Denudatae+Micranthae p.P.+Micronepeta p.p.和(5)Sect.Psilonepeta。这些类群物种间的系统发育关系与花冠形状、苞片质地、颜色和花粉外壁纹饰等花部特征的分布一致。
The internal transcribed spacers of nuclear ribosomal DNA (nrITS) from 43 species of Nepeta and representatives of closely related genera (Lallemantia, Dracocephalum and Agastache) and outgroups (Lavandula, Stachys, Newcastelia and Prostanthera) were sequenced. Parsimony analysis indicated that Nepeta is monophyletic and composed of five major monophyletic groups, most of which comprise species belonging to more than one section in previous classifications. These five clades are composed of. (1) sect. Spartonepeta; (2) sects. Macronepeta + Spicatae; (3) sects. Nepeta + Micranthae p.p. + Oxynepeta + Schizocalyx + Macrostegiae; (4) sects. Capituliferae + Denudatae + Micranthae p.p. + Micronepeta p.p.; and (5) sect. Psilonepeta. The phylogenetic relationships among species of these groups are congruent with the distribution of some floral characters, including corolla shape, bract texture, color and pollen exine ornamentation.