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首页> 外文期刊>MycoKeys >Different diversification histories in tropical and temperate lineages in the ascomycete subfamily Protoparmelioideae (Parmeliaceae)
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Different diversification histories in tropical and temperate lineages in the ascomycete subfamily Protoparmelioideae (Parmeliaceae)

机译：子囊菌亚原初纲（Parmeliaceae）的热带和温带世系的不同多样化历史

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Background: Environment and geographic processes affect species’ distributions as well as evolutionary processes, such as clade diversification. Estimating the time of origin and diversification of organisms helps us understand how climate fluctuations in the past might have influenced the diversification and present distribution of species. Complementing divergence dating with character evolution could indicate how key innovations have facilitated the diversification of species.Methods: We estimated the divergence times within the newly recognised subfamily Protoparmelioideae (Ascomycota) using a multilocus dataset to assess the temporal context of diversification events. We reconstructed ancestral habitats and substrate using a species tree generated in *Beast.Results: We found that the diversification in Protoparmelioideae occurred during the Miocene and that the diversification events in the tropical clade Maronina predate those of the extratropical Protoparmelia. Character reconstructions suggest that the ancestor of Protoparmelioideae was most probably a rock-dwelling lichen inhabiting temperate environments.Conclusions: Major diversification within the subtropical/tropical genus Maronina occurred between the Paleocene and Miocene whereas the diversifications within the montane, arctic/temperate genus Protoparmelia occurred much more recently, i.e. in the Miocene.
机译：背景：环境和地理过程会影响物种的分布以及进化过程，例如进化枝多样化。估计生物的起源和多样化的时间有助于我们了解过去的气候波动如何影响物种的多样化和目前的分布。方法：我们：利用多基因座数据集评估新发现的亚科原目亚科（原子亚科）中的分化时间，以评估多样性事件的时间背景，从而说明关键的创新如何促进了物种的多样化。结果：我们发现中新世期间发生了原弓形目科的多样性，热带小岛Maronina的多样性事件早于温带原弓形目的物种。性格重建表明原角龙科的祖先很可能是居住在温带环境中的岩石地衣。结论：亚热带/热带属马龙尼娜主要发生在新世和中新世之间，而山地，北极/温带原虫的多样性最近，即在中新世。

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