Data for: Plio-Pleistocene climatic fluctuations and divergence with gene flow drive continent-wide diversification in an African bird

This dataset contains the data used in Ogolowa et al (2025). The study
assessed the genetic structure and demographic history of the
Yellow-rumped Tinkerbird, Pogoniulus bilineatus species complex.
It found substantial genetic structuring across the range of the species
with an earliest split that coincides with the arid corridor. Thus
highlighting the arid corridor as an important biogeographical feature in
avian diversification in Sub-Saharan Africa. The data includes raw fastq
files generated via double-digest restriction-site associated DNA
sequencing (ddRADseq) from DNA samples of 183 individuals. The samples
were collected across the geographic range of P. bilineatus, with
representative samples from all seven currently recognized subspecies. It
also contains the metadata of each sample that indicates the sample
location, collection date, and coordinate information.

本数据集包含Ogolowa等人（2025）研究中所使用的全部相关数据。该研究针对黄纹拾䴕（Yellow-rumped Tinkerbird, *Pogoniulus bilineatus*）物种复合体的遗传结构与种群历史展开系统性评估。研究结果显示，该物种的整个分布范围内存在显著的遗传结构，其最早的分化节点与干旱走廊的形成时期高度吻合，由此凸显干旱走廊作为撒哈拉以南非洲鸟类多样化进程中重要生物地理特征的关键地位。本数据集涵盖183份样本通过双酶切限制性位点关联DNA测序（double-digest restriction-site associated DNA sequencing, ddRADseq）获得的原始fastq文件，这些样本覆盖了*P. bilineatus*的完整地理分布范围，包含当前已正式认可的全部7个亚种的代表性个体。此外，数据集还收录了每份样本的元数据，记录了样本采集地点、采集日期以及坐标信息。