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首页> 外文期刊>Mycologia >Phylogeny of Cyttaria inferred from nuclear and mitochondrial sequence and morphological data
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Phylogeny of Cyttaria inferred from nuclear and mitochondrial sequence and morphological data

机译：从核和线粒体序列及形态学数据推断的小夜蛾系统发育

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Cyttaria species (Leotiomycetes, Cyttariales) are obligate, biotrophic associates of Nothofagus (Hamamelididae, Nothofagaceae), the southern beech. As such Cyttaria species are restricted to the southern hemisphere, inhabiting southern South America (Argentina and Chile) and southeastern Australasia (southeastern Australia including Tasmania, and New Zealand). The relationship of Cyttaria to other Leotiomycetes and the relationships among species of Cyttaria were investigated with newly generated sequences of partial nucSSU, nucLSU and mitSSU rRNA, as well as TEE] sequence data and morphological data. Results found Cyttaria to be defined as a strongly supported clade. There is evidence for a close relationship between Cyttaria and these members of the Helotiales: Cordierites, certain Encoelia spp., Ionomidotis and to a lesser extent Chlorociboria. Order Cyttariales is supported by molecular data, as well as by the unique endostromatic apothecia, lack of chitin and highly specific habit of Cyttaria species. Twelve Cyttaria species are hypothesized, including all 11 currently accepted species plus an undescribed species that accommodates specimens known in New Zealand by the misapplied name C. gunnii, as revealed by molecular data. Thus the name C. gunnii sensu stricto is reserved for specimens occurring on N. cunninghamii in Australia, including Tasmania. Morphological data now support the continued recognition of C. septentrionalis as a species separate from C. gunnii. Three major clades are identified within Cyttaria: one in South America hosted by subgenus Nothofagus, another in South America hosted by subgenera Nothofagus and Lophozonia, and a third in South America and Australasia hosted by subgenus Lophozonia, thus producing a non-monophyletic grade of South American species and a monophyletic clade of Australasian species, including monophyletic Australian and New Zealand clades. Cyttaria species do not sort into clades according to their associations with subgenera Lophozonia and Nothofagus.
机译：Cyttaria物种（Leotiomycetes，Cyttariales）是南部山毛榉的Nothofagus（金缕梅科，Nothofagaceae）的专性生物营养同伴。因此，Cyttaria物种仅限于南半球，居住在南美南部（阿根廷和智利）和大洋洲东南部（包括塔斯马尼亚岛的东南澳大利亚和新西兰）。利用新生成的部分nucSSU，nucLSU和mitSSU rRNA序列，以及TEE]序列数据和形态学数据，研究了Cyttaria与其他Leoiomycetes的关系以及Cyttaria物种之间的关系。结果发现Cyttaria被定义为一个强有力的进化枝。有证据表明Cyttaria和这些Helotiales成员之间有密切的关系：堇青石，某些Encoelia spp。，Ionomidotis和较小程度的Chlorociboria。分子数据，以及独特的基质内质上皮细胞缺乏，几丁质的缺乏和Cyttaria物种的高度特殊习性支持了Cyttariales。假设有十二种Cyttaria物种，包括所有11种目前被接受的物种，再加上一个未描述的物种，该物种可以容纳新西兰人以错误使用的名字C. gunnii已知的标本，如分子数据所揭示。因此，C。gunnii sensu stricto这个名称专为澳大利亚（包括塔斯马尼亚岛）在坎宁哈姆猪笼草上出现的标本而保留。形态学数据现在支持持续识别七叶蝉C. septentrionalis是一种独立于冈尼梭菌的物种。在Cyttaria中确定了三个主要进化枝：一个在南美由Nothofagus属主办，另一个在南美由Nothofagus和Lophozonia属主办，在南美和大洋洲由第三个Lophozonia属主办，从而产生了非单系等级的South美国物种和澳大利亚物种的单系进化枝，包括澳大利亚和新西兰的单系进化枝。根据与Lophozonia和Nothofagus亚属的关联，Cyttaria物种不会分类为进化枝。

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