Annotations, alignments and a newick tree for comparative analyses of vertebrate V1Rs

This dataset contains supporting data for the study on the evolutionary diversification of vomeronasal type 1 receptor (V1R) genes across chordates, with particular focus on the origin and lineage-specific expansion of the V1R2 clade. The archive includes V1R gene annotations, multiple sequence alignments, and a Newick-formatted phylogenetic tree used in the comparative genomic and phylogenetic analyses. The annotations include intact V1R coding sequences identified from genome assemblies of vertebrates. The alignments and phylogenetic tree correspond to the analyses used to classify vertebrate V1Rs into major clades and to resolve the subclade structure of V1R2. These files provide the basis for the analyses of V1R copy number variation, V1R clade classification, and lineage-specific V1R2 expansion described in the associated manuscript.本数据集为脊索动物犁鼻器1型受体（vomeronasal type 1 receptor, V1R）基因演化分化相关研究提供配套支撑数据，研究重点聚焦于V1R2进化枝的起源与谱系特异性扩张。 本归档包含本研究比较基因组学与系统发育分析中所用的V1R基因注释文件、多序列比对文件，以及Newick格式的系统发育树。其中注释文件涵盖从脊椎动物基因组组装结果中鉴定得到的完整V1R编码序列。上述比对文件与系统发育树对应了用于将脊椎动物V1Rs划分为主要进化枝，并解析V1R2亚枝结构的相关分析。 这些文件为相关论文中所述的V1R拷贝数变异分析、V1R进化枝分类，以及谱系特异性V1R2扩张研究提供了核心支撑。