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首页> 外文期刊>Mycologia >Molecular phylogenetics of Ramaria and related genera: evidence fromnuclear large subunit and mitochondrial small subunit rDNA sequences
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Molecular phylogenetics of Ramaria and related genera: evidence fromnuclear large subunit and mitochondrial small subunit rDNA sequences

机译：疟原虫及相关属的分子系统发育：核大亚基和线粒体小亚基rDNA序列的证据

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Phylogenetic relationships of the genus Ramaria and additional related taxa were examined through phylogenetic analysis of mitochondrial and nuclear ribosomal DNA sequence data. Related genera included Clathrus, Clavariadelphus, Gautieria, Gomphus, Hysterangium, Kavinia and Pseudocolus. Outgroup genera included Bondarzewia, Favolus, Ganoderma, Lactarius and Russula. The nuclear large subunit ribosomal DNA (nuc LSU rDNA) (approx. 610 bp) from 78 collections including 34 Ramaria species was used to test generic, subgeneric and selected species concepts for Ramaria. The mitochondrial small subunit ribosomal DNA (mt SSU rDNA) (ca 470 bp) from 51 representative holobasidiomycetes including ten Ramaria species also was used to independently test the monophyly of the genus Ramaria. Parsimony analyses of both datasets indicated that the genus Ramaria was paraphyletic and that several morphologically distinct groups of holobasidiomycetes were derived from ramarioid ancestors. In the nuc LSU rDNA analyses, Gautieria was nested among the terricolous Ramaria species and was closely related to R. subg Ramaria. The nuc LSU rDNA results also indicated that R subg Laeticolora and R. subg Lentoramaria formed paraphyletic grades. Ramaria subg Laeticolora was paraphyletic due to the terminally derived R. subg Ramaria/Gautieria clade and a nested Gomphus. Ramaria subg Lentoramaria was paraphyletic due to a nested Clavariadelphus, Kavinia, and R. abietina of subg Echinoramaria. Both the nuc LSU rDNA and the mt SSU rDNA analyses demonstrated strong bootstrap support for the inclusion of the Phallales with the ingroup taxa, but the relationship of the Phallales to the Gomphales was indeterminate. Selected species concepts were also tested (e.g., R amyloidea and R. celerivirescens, and R. araiospora and R. stuntzii). These data rejected the monophyly of Ramaria and suggested that the ramarioid morphology and lignicolous substrate affinity were ancestral for the Gomphales.
机译：通过对线粒体和核糖体DNA序列数据进行系统发育分析，检查了Ramaria属与其他相关分类单元的亲缘关系。相关的属包括钩吻属（Clathrus），毛lava纲属（Clavariadelphus），高铁属（Gautieria），冈比亚（Ghomphus），子宫（Hysterangium），卡维尼亚（Kavinia）和假单胞菌（Pseudocolus）。外群属包括Bondarzewia，Favolus，灵芝，Lactarius和Russula。来自78个馆藏的核大亚基核糖体DNA（nuc LSU rDNA）（约610 bp），包括34种罗摩拉属物种，用于测试罗摩拉属的通用，亚属和选定物种概念。来自51个代表性的包括10个Ramaria种的全生物的线粒体小亚基核糖体DNA（mt SSU rDNA）（约470 bp）也被用来独立测试Ramaria属的单亲性。对这两个数据集的简约分析表明，Ramaria属是共生的，并且从形态上独特的几个类群是全息类祖先。在nuc LSU rDNA分析中，Gautieria嵌套在terricolous Ramaria物种之间，并且与R. subg Ramaria密切相关。 Nuc LSU rDNA结果还表明，R subg Laeticolora和R. subg Lentoramaria形成了近亲等级。由于终生衍生的R. subg Ramaria / Gautieria进化枝和嵌套的Gomphus，Ramaria subg Laeticolora是共生的。雷公藤亚目Lentorramaria是亚种的，因为亚毛虫Echinoramaria的巢状Clavariadelphus，Kavinia和R. abietina。 nuc LSU rDNA和mt SSU rDNA分析均显示出强大的自举支持，以将Phallales纳入组别分类群，但Phallales与Gomphales的关系不确定。还测试了选定的物种概念（例如，淀粉样淀粉菌和R. celerivirescens，以及R. araiospora和R. stuntzii）。这些数据拒绝了Ramaria的单亲性，并暗示了Ramarioid形态和木本植物底物亲和力是Gomphales的祖先。

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