非洲南部小蚁和小蚁的进化、系统学和历史生物地理学(神经翅目:小蚁科):古老起源和原位多样化

IF 4.7 1区 农林科学 Q1 ENTOMOLOGY Systematic Entomology Pub Date : 2023-05-18 DOI:10.1111/syen.12593
Noémie M.-C. Hévin, Gael. J. Kergoat, Anne-Laure Clamens, Bruno Le Ru, Mervyn W. Mansell, Bruno Michel
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引用次数: 0

摘要

Palparine和palparidiine antlion构成了一个象征性的大型昆虫分支,偶尔会有颜色,只分布在东半球的西部,大约一半的已知物种多样性只发生在非洲南部。对它们的进化史知之甚少,大多数属的界限和关系仍然没有解决。在这项研究中,我们分析了144种蚂蚁的7个基因座(5个线粒体基因和2个核基因)的分子数据集,并为Palparini和Palparidiini(62个Palparini种,代表17个已知属中的15个,以及所有3个已知的Palparidiini种)的代表性样本提供了第一个系统发育假设。此外,我们还重建了它们的多样化时间和历史生物地理。结果表明,一些现存的palparine属是多系或副系,并提供了有趣的线索,应该有助于未来的分类修订;它还使我们能够重新评估以前用于定义某些属的一些形态特征的分类效用和相关性。分子测年分析表明,这两个群体最近的共同祖先大约起源于9200万年前的晚白垩纪。最后,历史生物地理学分析的结果为非洲南部的起源提供了强有力的支持,该起源进一步成为多样化的摇篮和北部连续扩散浪潮的跳板。
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Evolution, systematics and historical biogeography of Palparini and Palparidiini antlions (Neuroptera: Myrmeleontidae): Old origin and in situ diversification in Southern Africa

Palparine and palparidiine antlions constitute an emblematic clade of large and occasionally colourful insects that are only distributed in the western portion of the Eastern hemisphere, with about half of the known species diversity occurring exclusively in Southern Africa. Little is known about their evolutionary history, and the boundaries and relationships of most genera are still unresolved. In this study, we analyse a molecular dataset consisting of seven loci (five mitochondrial and two nuclear genes) for 144 antlion species and provide the first phylogenetic hypothesis for a representative sampling of Palparini and Palparidiini (62 Palparini species, representing 15 of the 17 known genera, and all three known Palparidiini species). In addition, we reconstruct their timing of diversification and historical biogeography. The resulting tree indicates that several extant palparine genera are polyphyletic or paraphyletic and provides interesting leads that ought to be helpful for future taxonomic revisions; it also enables us to re-evaluate the taxonomic utility and relevancy of a number of morphological characters that were previously used to define some genera. Molecular dating analyses indicate that the most recent common ancestor of both groups originated about 92 million years ago (Ma) in the Late Cretaceous. Finally, the results of historical biogeography analyses provide strong support for an origin in Southern Africa, which further acted as both a cradle of diversification and a springboard for successive waves of northern dispersals.

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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.
期刊最新文献
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