Phylogenomics improves the phylogenetic resolution and provides strong evidence of mito-nuclear discordance in two genera of a New Zealand cicada (Hemiptera: Cicadidae) species radiation

IF 4.7 1区 农林科学 Q1 ENTOMOLOGY Systematic Entomology Pub Date : 2023-11-09 DOI:10.1111/syen.12613
Mark Stukel, Alexandra E. Porczak, Eric R. L. Gordon, Jason Vailionis, Diler Haji, Thomas R. Buckley, Alan R. Lemmon, Emily Moriarty Lemmon, Chris Simon
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Abstract

Rapid species radiations present difficulties for phylogenetic reconstruction due to lack of phylogenetic information and processes such as deep coalescence/incomplete lineage sorting and hybridization. Phylogenomic data can overcome some of these difficulties. In this study, we use anchored hybrid enrichment (AHE) nuclear phylogenomic data and mitochondrial genomes recovered from AHE bycatch with several concatenated and coalescent approaches to reconstruct the poorly resolved radiation of the New Zealand cicada species in the genera Kikihia Dugdale and Maoricicada Dugdale. Compared with previous studies using only three to five Sanger-sequenced genes, we find increased resolution across our phylogenies, but several branches remain unresolved due to topological conflict among genes. Some nodes that are strongly supported by traditional support measures like bootstraps and posterior probabilities still show significant gene and site concordance conflict. In addition, we find strong mito-nuclear discordance; likely the result of interspecific hybridization events in the evolutionary history of Kikihia and Maoricicada.

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系统发生组学提高了系统发生分辨率,并提供了新西兰蝉(半翅目:蝉科)物种辐射中两个属的有丝分裂-核不一致性的有力证据
由于缺乏系统发育信息以及深度凝聚/不完全系分类和杂交等过程,快速物种辐射给系统发育重建带来了困难。系统发生组数据可以克服其中一些困难。在本研究中,我们利用锚定杂交富集(AHE)核系统发生组数据和从 AHE 副渔获物中回收的线粒体基因组,并采用几种连接和聚合方法,重建了新西兰蝉属 Kikihia Dugdale 和 Maoricicada Dugdale 的辐射解析度较低的蝉种。与之前仅使用三到五个桑格测序基因的研究相比,我们发现我们的系统发生的分辨率有所提高,但由于基因间的拓扑冲突,一些分支仍未得到解决。一些通过传统支持度量(如引导和后验概率)得到强有力支持的节点仍然显示出明显的基因和位点一致性冲突。此外,我们还发现了强烈的有丝分裂-核分裂不一致现象;这可能是 Kikihia 和 Maoricicada 进化史中种间杂交事件的结果。
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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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