Taxonomy in the phylogenomic era: species boundaries and phylogenetic relationships among North American ants of the Crematogaster scutellaris group (Formicidae: Hymenoptera)
Taxonomy in the phylogenomic era: species boundaries and phylogenetic relationships among North American ants of the Crematogaster scutellaris group (Formicidae: Hymenoptera)
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系统发育时代的分类学：北美火蚁类（蚁科：膜翅目）的物种边界和系统发育关系
DOI：
10.1093/zoolinnean/zlab047
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发表时间：
2022
影响因子：
2.8
通讯作者：
Blaimer, Bonnie B.
中科院分区：
文献类型：
--
作者：
Ward, Philip S.;Blaimer, Bonnie B.
我们调查了种水平的分类和进化历史的新北蚂蚁在theCrematogaster scutellarisgroup（膜翅目：蚁科），借鉴证据，从形态学和UCE（ultraconserved元素）基因组学。新世界物种在这组形成了一个支持良好的分支，起源于晚中新世（约7.3 Mya），随后分为三个主要谱系：C。coarctataclade（西南新北区），C. opacaclade（西南的新北和北方的新热带）和C. lineolataclade（东部新北和加勒比，有四个孤立的西南地方病）。我们假设trans-Beringian扩散到新大陆，西向东运动在北美和限制嗜温物种的东部与西部干旱化的增加。这些蚂蚁的祖先筑巢行为被推断为地面居住，这仍然是干旱西部的主要条件，而美国东部的大多数物种都是树栖的。从异名中复活了9个种，并描述了3个新种：C.探测器Nov. (from内华达州）、C.副棘蛇属Nov.（佛罗里达）和C. vetustasp. Nov.（亚利桑那州）。我们提供了一个基于工人的关键ofCrematogasterocurring在美国墨西哥北部的34种，但强调仍有正在进行的分类问题，需要解决。
We investigate the species-level taxonomy and evolutionary history of Nearctic ants in theCrematogaster scutellarisgroup (Hymenoptera: Formicidae), drawing on evidence from morphology and UCE (ultraconserved element) phylogenomics. The New World species in this group form a well-supported clade that originated in the Late Miocene (~7.3 Mya) and subsequently diverged into three major lineages: theC. coarctataclade (south-western Nearctic), theC. opacaclade (south-western Nearctic and northern Neotropics) and theC. lineolataclade (eastern Nearctic and Caribbean, with four isolated south-west endemics). We hypothesize trans-Beringian dispersal into the New World, west-to-east movement within North America and restriction of mesophilic species to the east with increasing aridification of the west. The ancestral nesting behaviour of these ants is inferred to be ground-dwelling, and this is still the predominant condition in the arid west, whereas most species in the eastern United States are arboreal. We resurrect from synonymy nine species and describe three new species:C. detectasp. nov.(from Nevada), C. parapilosasp. nov.(Florida) andC. vetustasp. nov.(Arizona). We provide a worker-based key to the 34 species ofCrematogasteroccurring in America north of Mexico, but emphasize that there are still ongoing taxonomic issues that need to be resolved.