Phylogenomics and Fossil Data Inform the Systematics and Geographic Range Evolution of a Diverse Neotropical Ant Lineage

IF 3.2 1区 农林科学 Q1 ENTOMOLOGY Insect Systematics and Diversity Pub Date : 2022-01-01 DOI:10.1093/isd/ixab023
S. Price, Benjamin D. Blanchard, Scott Powell, Bonnie B. Blaimer, C. Moreau
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引用次数: 6

Abstract

Abstract Recent advances in phylogenomics allow for the use of large amounts of genetic information in phylogenetic inference. Ideally, the increased resolution and accuracy of such inferences facilitate improved understanding of macroevolutionary processes. Here, we integrate ultraconserved elements (UCEs) with fossil and biogeographic range data to explore diversification and geographic range evolution in the diverse turtle ant genus Cephalotes Latreille, 1802 (Hymenoptera: Formicidae). We focus on the potential role of the uplift of the Panamanian land bridge and the putative ephemeral GAARlandia land bridge linking South America and the Antilles in shaping evolution in this group. Our phylogenetic analyses provide new resolution to the backbone of the turtle ant phylogeny. We further found that most geographic range shifts between South America and Central America regions were temporally consistent with the development of the Panamanian land bridge, while we did not find support for the GAARlandia land bridge. Additionally, we did not infer any shifts in diversification rates associated with our focal land bridges, or any other historical events (we inferred a single diversification rate regime across the genus). Our findings highlight the impact of the Panamanian land bridge for Cephalotes geographic range evolution as well as the influence of taxonomic sampling on macroevolutionary inferences.
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系统基因组学和化石数据揭示了不同新热带蚂蚁谱系的系统学和地理范围进化
系统基因组学的最新进展允许在系统发生推断中使用大量的遗传信息。理想情况下,这种推断的分辨率和准确性的提高有助于提高对宏观进化过程的理解。本文将超保守元素(UCEs)与化石和生物地理范围数据相结合,探讨了龟蚁属(Cephalotes Latreille, 1802)的多样性和地理范围演变。我们重点关注巴拿马陆桥的隆起和连接南美洲和安的列斯群岛的假定的短暂的GAARlandia陆桥在塑造该群演化中的潜在作用。我们的系统发育分析为龟蚁系统发育的主干提供了新的解决方案。我们进一步发现,南美洲和中美洲地区之间的大部分地理范围转移与巴拿马大陆桥的发展在时间上是一致的,而我们没有发现对GAARlandia大陆桥的支持。此外,我们没有推断出与我们的焦点陆桥或任何其他历史事件相关的多样化率的任何变化(我们推断了整个属的单一多样化率制度)。我们的研究结果强调了巴拿马大陆桥对头足类地理范围进化的影响,以及分类抽样对宏观进化推断的影响。
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来源期刊
CiteScore
5.30
自引率
8.80%
发文量
34
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