Dataset and codes underlying "The younger flagellum sets the beat for C. reinhardtii"

The dataset presented are what underlies the paper "The younger flagellum sets the beat for C. reinhardtii". Codes for modeling and plotting, and the hydrodynamic computations' data are included.<br>Eukaryotes swim by coordinating flagellar movements and adjust their direction by fine-tuning this coordination. C. reinhardtii, a model organism, uses synchronous flagellar beating for propulsion and adjusts direction by modulating beating amplitudes. This strategy relies on inherent flagellar differences and effective coordination during synchronous beating. Mechanical connections support synchrony, but how flagellar differences persist during synchrony is unclear. This study combines experiments, computations, and modeling to reveal the roles of each flagellum in synchronous beating. By selectively loading each flagellum, researchers found that coordinated beating responds mainly to loading on the cis flagellum, indicating an asymmetric response due to unilateral coupling between flagella. These results highlight distinct roles for each flagellum in coordination and have implications for the behavior of biflagellates.<br>

本数据集为研究论文《年轻鞭毛主导莱茵衣藻（C. reinhardtii）的摆动节律》提供了核心支撑，包含建模与绘图代码以及流体动力学计算数据。
真核生物通过协调鞭毛运动实现游动，并通过微调该协调模式调整运动方向。莱茵衣藻（C. reinhardtii）作为经典模式生物，依靠同步鞭毛摆动实现推进，并通过调节摆动幅度调整运动方向。该运动策略依赖于鞭毛固有的差异以及同步摆动过程中的有效协调。机械连接可维持鞭毛的同步摆动，但同步状态下鞭毛间的固有差异如何得以维持仍未明确。本研究结合实验、计算与建模手段，揭示了两条鞭毛在同步摆动中的各自功能。通过对单条鞭毛实施选择性载荷加载，研究人员发现，鞭毛的协同摆动主要响应顺向鞭毛（cis flagellum）所受的载荷，这表明鞭毛间存在单侧耦合机制，进而引发不对称响应。本研究结果凸显了两条鞭毛在运动协调中的差异化作用，对双鞭毛生物的行为研究具有重要参考意义。