UPA reference sequences

Reference sequences of the UPA (universal plastid amplicon) to identify algae in metabarcoding datasets. Formatted for use with the RDP classifier. See here for a description of the dataset and methods: https://doi.org/10.1016/j.dib.2017.02.013通用质体扩增子（UPA）参考序列，用于在元条形码数据集中识别藻类。该序列已格式化，适用于RDP分类器。有关数据集和方法的具体描述，请参阅：https://doi.org/10.1016/j.dib.2017.02.013