Bringing order to chaos: A new classification of avian schistosomes and their genetic lineages in the context of swimmer’s itch

This dataset provides four multiple-sequence alignments used for the global phylogenetic revision of avian schistosomes (family Schistosomatidae), parasitic flatworms that infect birds and some may cause swimmer's itch (cercarial dermatitis) in humans. The alignments were generated from 184 newly obtained sequences and combined with publicly available GenBank sequences for avian schistosomes retrieved up to April 2025. They were used to generate phylogenetic tree: Figures 1, 2, S1 and S2 of the associated manuscript. The four alignment files are: (1) a concatenated cox1/ITS/28S alignment of 141 terminals representing 88 species/lineages across 1,588 characters, used for the summary phylogenetic tree; (2) a cox1 alignment of 247 terminals representing 88 species/lineages across 420 characters; (3) an ITS1-5.8S rRNA-ITS2 alignment of 181 terminals representing 60 species/lineages across 600 characters; and (4) a 28S rDNA alignment of 160 terminals representing 81 species/lineages across 548 characters. All the sequences were aligned using MAFFT v7 in Geneious Prime 2025.1.1, manually trimmed, and filtered with Gblock 0.91b under relaxed settings to remove poorly aligned regions.本数据集提供4套多序列比对文件，用于开展禽血吸虫（血吸虫科，一类寄生于鸟类的寄生扁形动物，部分类群可引发人类尾蚴性皮炎，即游泳者痒症）的全球系统发育修订研究。本数据集的比对文件由184条新获得的序列生成，并结合了截至2025年4月从公共基因数据库（GenBank）中检索到的禽血吸虫序列。这些比对文件被用于生成关联论文中的系统发育树：对应论文的图1、图2、补充图S1及补充图S2。4套比对文件具体如下：(1) 一套串联cox1/ITS/28S的多序列比对，包含141个终端分类单元，涵盖88个物种/支系，共1588个特征位点，用于构建总结性系统发育树；(2) 一套cox1基因多序列比对，包含247个终端分类单元，涵盖88个物种/支系，共420个特征位点；(3) 一套ITS1-5.8S rRNA-ITS2基因多序列比对，包含181个终端分类单元，涵盖60个物种/支系，共600个特征位点；(4) 一套28S rDNA基因多序列比对，包含160个终端分类单元，涵盖81个物种/支系，共548个特征位点。所有序列均通过Geneious Prime 2025.1.1软件中的MAFFT v7工具完成比对，经人工修剪后，使用Gblock 0.91b软件以宽松参数设置进行过滤，以移除比对质量不佳的区域。