Data for: Integrating phylogenetics with intron positions illuminates the origin of the complex spliceosome

Fasta files of the LECA spliceosomal OGs, alignments used for tree inference, inferred phylogenetic tree files, alignments used for intron analysis and mapped intron files.本数据集包含真核生物末次共同祖先（Last Eukaryotic Common Ancestor, LECA）剪接体直系同源基因簇（Orthologous Groups, OGs）对应的FASTA格式文件（FASTA）、用于系统发育树推断的多序列比对文件、经推断得到的系统发育树文件、用于内含子分析的多序列比对文件以及映射后的内含子文件。