Phylogenomic inference and demographic model selection suggest peripatric separation of the cryptic steppe ant species Plagiolepis pyrenaica stat. rev.
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The ant Plagiolepis taurica Santschi, 1920 (Hymenoptera, Formicidae) is a typical species of the Eurasian steppes, a large grassland-dominated biome that stretches continuously from Central Asia to Eastern Europe and is represented by disjunct outposts also in Central and Western Europe. The extent of this biome has been influenced by the Pleistocene climate, and steppes expanded recurrently during cold stages and contracted in warm stages. Consequently, stenotopic steppe species such as P. taurica repeatedly went through periods of demographic expansion and severe isolation. Here, we explore the impact of these dynamics on the genetic diversification within P. taurica. Delimitation of P. taurica from other Plagiolepis species has been unclear since its initial description, which raised questions on both its classification and its spatiotemporal diversification early on. We reâevaluate species limits and explore underlying mechanisms driving speciation by using an integrative approach b..., Morphometric measurements are provided in Excel tables and geometric morphometry landmarks are provided as tps file. The corresponding methods and the character definition are provided in the Supplementary Material of the manuscript., , # Phylogenomic inference and demographic model selection suggest peripatric separation of the cryptic steppe ant species Plagiolepis pyrenaica stat. rev. [https://doi.org/10.5061/dryad.c866t1g9f](https://doi.org/10.5061/dryad.c866t1g9f) Data description: Morphometric measurements are provided in Excel tables and geometric morphometry landmarks are provided as tps file. The corresponding methods and the character definition are provided in the Supplementary Material of the manuscript. The file \"workers_individuals.xlsx\" contains raw data of morphometric measurements from individual workers of Plagiolepis pyrenaica and P. taurica. Abbreviations: HYP=classification by traditional morphometry; nuDNA = classification by RAD sequencing The file \"Nest_sample_means_RAV.xlsx\" contains per nest sample means of allometrically corrected morphometric data of workers of Plagiolepis pyrenaica and Pl. taurica. LAT, LON, ALT = geographic latitude, longitude and altitude; HYP=classification by trad...
1920年由Santschi命名的土耳其斜结蚁（Plagiolepis taurica Santschi, 1920）隶属于膜翅目（Hymenoptera）蚁科（Formicidae），是欧亚草原带的典型类群。欧亚草原带是一片以草本植物占优的连续生物群区，其分布范围从中亚延伸至东欧，同时在中欧与西欧也存在孤立的片段化分布。该生物群区的范围受更新世气候调控：冰期阶段草原面积周期性扩张，暖期则逐步收缩。因此，诸如P. taurica这类狭栖性草原物种，反复经历了种群扩张与严重隔离的循环。本研究旨在探究这些动态过程对P. taurica种群内遗传分化的影响。自最初定名以来，土耳其斜结蚁与其他斜结蚁属（Plagiolepis）物种的界定始终存在模糊性，这早在早期就引发了学界对其分类及时空分化的疑问。我们采用整合方法重新评估了物种界限，并探讨了驱动物种形成的潜在机制…… 形态测量数据以Excel表格形式存储，几何形态测量标志点以tps文件格式提供。相关方法及性状定义详见论文的补充材料（Supplementary Material）。 # 系统基因组学推断与种群模型选择结果表明，隐秘性草原蚂蚁物种比利牛斯斜结蚁（Plagiolepis pyrenaica stat. rev.）经历了邻域分化。 https://doi.org/10.5061/dryad.c866t1g9f 数据说明：形态测量数据以Excel表格形式存储，几何形态测量标志点以tps文件格式提供。相关方法及性状定义详见论文的补充材料。 文件"workers_individuals.xlsx"包含了比利牛斯斜结蚁（Plagiolepis pyrenaica）与土耳其斜结蚁（P. taurica）的工蚁个体形态测量原始数据。 缩写说明：HYP=基于传统形态测量的分类；nuDNA = 基于限制性位点相关DNA测序（RAD sequencing）的分类 文件"Nest_sample_means_RAV.xlsx"包含了比利牛斯斜结蚁与土耳其斜结蚁工蚁的异速生长校正形态测量数据的每巢样本均值。LAT、LON、ALT分别代表地理纬度、经度与海拔；HYP=基于传统……
