Phylogenomics and systematics of botryllid ascidians, and implications for the evolution of allorecognition

Allorecognition, the ability of an organism to distinguish kin from non-kin, or self from non-self, has been studied extensively in a group of invertebrate chordates, the colonial ascidians called botryllids (Subphylum Tunicata, Class Ascidiacea, Family Styelidae).  When two conspecific botryllid colonies come in contact, there are two potential outcomes to an allorecognition reaction: fusion or rejection. The rejection outcome of allorecognition varies by species and has been classified by type (referred to as R-type). R-type is defined according to how far the fusion process progresses before the rejection begins, since the rejection reaction appears as an interference of the fusion process. Here, we map evolution of R-types onto an extended and robust phylogeny of the botryllids. In this study, we have reconstructed the largest phylogenomic tree of botryllids, including 98 samples and more than 40 different species, and mapped on it nine of the 12 species for which the R-ty..., , , # Data from: Phylogenomics and systematics of botryllid ascidians, and implications for the evolution of allorecognition

In this dataset there are five categories of files.

### Category #1:

All single gene alignment files (177)

Name of Zip file: Single_gene_alignment_files.7z

### Category #2:

All single gene tree files (177)

Name of Zip file: Single_gene_tree_file.7z

### Category #3:

The concatenation file (1)

Name: T641_Nydam_Botryllidae_ConcatLoci.phylip

### Category #4:

The RAxML species tree file (1)

Name: RAXML__1.T64

### Category #5:

The Astral species tree file (1)

Name: outBestTreeAstral.tre
,

同种异体识别（Allorecognition）指生物体区分亲缘个体与非亲缘个体、自我与非自我的能力，该性状已在一类无脊椎脊索动物——隶属于被囊动物亚门（Subphylum Tunicata）、海鞘纲（Class Ascidiacea）、柄海鞘科（Family Styelidae）的群居海鞘类玻里海鞘（botryllids）中得到广泛研究。当两个同种玻里海鞘类群体接触时，同种异体识别反应存在两种潜在结局：融合或排斥。同种异体识别的排斥结局因物种而异，且已按类型分类（称为R型）。R型根据排斥反应启动前融合进程的进展程度定义，因为排斥反应表现为对融合过程的阻断。
本研究将R型的演化映射至扩展且稳健的玻里海鞘类系统发育树中。本研究构建了迄今规模最大的玻里海鞘类系统发育组学树，涵盖98个样本、40余个不同物种，并将12个已明确R型性状的物种中的9个的R型性状映射至该树上。# 数据来源：玻里海鞘类海鞘的系统发育组学与系统分类学，及其对同种异体识别演化的启示

本数据集包含五类文件：

### 类别1：
所有单基因比对文件（共177个），压缩包名称：Single_gene_alignment_files.7z

### 类别2：
所有单基因树文件（共177个），压缩包名称：Single_gene_tree_file.7z

### 类别3：
串联序列文件（共1个），文件名为：T641_Nydam_Botryllidae_ConcatLoci.phylip

### 类别4：
RAxML物种树文件（共1个），文件名为：RAXML__1.T64

### 类别5：
Astral物种树文件（共1个），文件名为：outBestTreeAstral.tre