基于转录组的金龟子总科系统发育证实了金龟子和植食性胸膜炎金龟子(鞘翅目)的姐妹群关系

IF 4.7 1区 农林科学 Q1 ENTOMOLOGY
Lars Dietz, Matthias Seidel, Jonas Eberle, Bernhard Misof, Thaynara L. Pacheco, Lars Podsiadlowski, Sasanka Ranasinghe, Nicole L. Gunter, Oliver Niehuis, Christoph Mayer, Dirk Ahrens
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引用次数: 2

摘要

金龟子(Scarabaeidae)是一种多样且具有重要生态意义的被子植物相关昆虫。按照惯例,金龟子由两个主要谱系组成:粪甲虫和植食性胸膜甲虫。然而,以前的系统发育分析并不能令人信服地回答这两个谱系是否形成一个单系群的问题。在这里,我们报告了我们对从50多种斯卡拉贝科和其他斯卡拉贝总科的转录组中提取的4000多个基因的系统发育分析结果。我们的研究结果为金龟子科的单系性提供了令人信服的支持,证实了有争议的甲虫和植食性胸膜炎金龟子的姐妹群关系。基于超矩阵的最大似然和多物种联合系统发育分析强烈暗示了目前所理解的Melolonthinae亚科是异系的。因此,我们提出了Melolonshinae系统学的各种变化:Sericinae Kirby,1837 stat.rest.和sensu.n.包括Ablaberini、Dipucephalini和Sericini部落,Sericoidinae Erichson,1847 stat.rest.和senson.包括Automolini、Heteronychini、Liparetrini、Maechidiini、Phyllotocini、Scitalini和Sericoidini部落。这两个亚科似乎一致地形成了一个单系姐妹群,与迄今为止包括在胸膜口圣甲虫中的所有其他亚科(Orphinae除外)形成姐妹群。我们的研究结果代表着朝着理解最大的被子植物相关甲虫辐射之一的多样化历史迈出了重要一步。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A transcriptome-based phylogeny of Scarabaeoidea confirms the sister group relationship of dung beetles and phytophagous pleurostict scarabs (Coleoptera)

A transcriptome-based phylogeny of Scarabaeoidea confirms the sister group relationship of dung beetles and phytophagous pleurostict scarabs (Coleoptera)

Scarab beetles (Scarabaeidae) are a diverse and ecologically important group of angiosperm-associated insects. As conventionally understood, scarab beetles comprise two major lineages: dung beetles and the phytophagous Pleurosticti. However, previous phylogenetic analyses have not been able to convincingly answer the question whether or not the two lineages form a monophyletic group. Here, we report our results from phylogenetic analyses of more than 4000 genes mined from transcriptomes of more than 50 species of Scarabaeidae and other Scarabaeoidea. Our results provide convincing support for the monophyly of Scarabaeidae, confirming the debated sister group relationship of dung beetles and phytophagous pleurostict scarabs. Supermatrix-based maximum likelihood and multispecies coalescent phylogenetic analyses strongly imply the subfamily Melolonthinae as currently understood being paraphyletic. We consequently suggest various changes in the systematics of Melolonthinae: Sericinae Kirby, 1837 stat. rest. and sensu n. to include the tribes Ablaberini, Diphucephalini and Sericini, and Sericoidinae Erichson, 1847 stat. rest. and sensu n. to include the tribes Automoliini, Heteronychini, Liparetrini, Maechidiini, Phyllotocini, Scitalini, and Sericoidini. Both subfamilies appear to consistently form a monophyletic sister group to all remaining subfamilies so far included within pleurostict scarabs except Orphninae. Our results represent a major step towards understanding the diversification history of one of the largest angiosperm-associated radiations of beetles.

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来源期刊
Systematic Entomology
Systematic Entomology 生物-进化生物学
CiteScore
10.50
自引率
8.30%
发文量
49
审稿时长
>12 weeks
期刊介绍: Systematic Entomology publishes original papers on insect systematics, phylogenetics and integrative taxonomy, with a preference for general interest papers of broad biological, evolutionary or zoogeographical relevance.
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