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<title>GTDB-Tk: 微生物基因组分类工具</title>
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<i class="fas fa-dna mr-3"></i>GTDB-Tk
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基于基因组分类数据库的微生物分类工具包
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<div class="badge badge-lg badge-outline text-white border-white">基因组分类</div>
<div class="badge badge-lg badge-outline text-white border-white">系统发育分析</div>
<div class="badge badge-lg badge-outline text-white border-white">微生物鉴定</div>
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<i class="fas fa-info-circle text-blue-600 mr-3"></i>工具概述
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<h3 class="text-xl font-semibold mb-4 text-gray-800">什么是GTDB-Tk?</h3>
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GTDB-Tk是一个基于基因组分类数据库(GTDB)的微生物分类工具包,专门用于对未知基因组进行自动化分类。
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它能够处理大量的基因组序列,通过系统发育分析确定微生物的分类地位,帮助研究人员识别新物种。
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<h4 class="font-semibold text-blue-800 mb-3">核心优势</h4>
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<li><i class="fas fa-check mr-2"></i>自动化分类流程</li>
<li><i class="fas fa-check mr-2"></i>基于120个单拷贝标记基因</li>
<li><i class="fas fa-check mr-2"></i>支持细菌和古菌分类</li>
<li><i class="fas fa-check mr-2"></i>标准化分类体系</li>
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<i class="fas fa-cogs text-green-600 mr-3"></i>分类工作流程
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<h3 class="card-title text-xl justify-center">1. 基因预测</h3>
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使用Prodigal预测基因组中的蛋白质编码基因
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<h3 class="card-title text-xl justify-center">2. 标记基因鉴定</h3>
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使用HMMER鉴定120个细菌或122个古菌单拷贝标记基因
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<h3 class="card-title text-xl justify-center">3. 系统发育分类</h3>
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基于标记基因构建系统发育树,确定分类地位
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<h3 class="text-xl font-semibold mb-4 text-gray-800">1. 创建Conda环境</h3>
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<pre><code>conda create -n gtdbtk
conda activate gtdbtk</code></pre>
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<h3 class="text-xl font-semibold mb-4 text-gray-800">2. 安装GTDB-Tk</h3>
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<pre><code>conda install -c bioconda gtdbtk</code></pre>
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<h3 class="text-xl font-semibold mb-4 text-gray-800">3. 下载数据库 (~27GB)</h3>
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<pre><code>wget https://data.ace.uq.edu.au/public/gtdb/data/releases/release89/89.0/gtdbtk_r89_data.tar.gz
tar zxvf gtdbtk_r89_data.tar.gz</code></pre>
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数据库下载需要较长时间,请耐心等待
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<h3 class="text-xl font-semibold mb-4 text-gray-800">4. 配置数据库路径</h3>
<p class="text-gray-600 mb-4">编�