水平基因转移HGT

作者: 胡童远 | 来源:发表于2021-09-26 12:34 被阅读0次

    文献代表

    标题:Elevated rates of horizontal gene transfer in the industrialized human microbiome
    中文:非工业地区人体微生物组水平基因转移提高
    杂志:CELL
    时间:2021
    单位:剑桥麻省理工
    HGT定义:
    We used Blast (blastn, v2.6.0) to systematically detect blocks of DNA that are shared by two genomes of different species. We retained blast hits with 100% similarity and that are larger than 500bp.

    标题:Mobile genes in the human microbiome are structured from global to individual scales
    中文:人体微生物群的移动基因
    杂志:Nature
    时间:2016
    单位:剑桥哈佛麻省理工
    HGT定义:
    Recent DNA transfers are defined as the presence of near-identical DNA fragments (99% percent identity or greater) with a length of 500 basepairs or greater in two distantly related genomes.

    检测方法

    HGTector2

    标题:HGTector: an automated method facilitating genome-wide discovery of putative horizontal gene transfers
    杂志:BMC bioinformatics
    时间:2014
    引用:60 (2021.9)

    Github:https://github.com/qiyunlab/HGTector

    1 软件获取

    conda create -n HGTector
    conda activate HGTector
    conda install python=3 pyyaml pandas matplotlib scikit-learn bioconda::diamond
    
    #pip install git+https://github.com/qiyunlab/HGTector.git
    git clone https://github.com/qiyunlab/HGTector.git
    cd HGTector
    python setup.py install 
    # --user  # 该参数会把软件安装在Home,家小勿用
    

    2 获取数据库

    ./hgtector database -o /route/database/HGTector/ \
    --default
    

    OSError: [Errno 122] Disk quota exceeded

    Blastn

    #建库
    makeblastdb -in db_blast/total.ffn \
    -input_type fasta -dbtype nucl -title total -parse_seqids \
    -out db_blast/total
    
    #比对一个基因组
    blastn -db ./db_blast/total \
    -outfmt 6 \
    -max_target_seqs 100000000 \
    -num_threads 4 \
    -perc_identity 100 \
    -evalue 1e-6 \
    -query ./genome/T2103096366.ffn \
    -out ./out/T2103096366_blast.out
    

    MetaCHIP

    标题:MetaCHIP: community-level horizontal gene transfer identification through the combination of best-match and phylogenetic approaches
    中文:群落水平HGT鉴定方法
    杂志:Microbiome
    时间:2019
    单位:新南威尔士大学

    Github: https://github.com/songweizhi/MetaCHIP

    更多
    Horizontal gene transfer
    Bioinformatics tools to detect horizontal gene transfer
    pip install git(pip直接安装git上的项目)

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