Shotgun 宏基因组测序
16s rRNA 数据有偏向性:
- Degenerate primers Degenerate primers
- PCR Amplification
- Databases
- Does not capture viruses and eukaryotes
主要用于菌群分析。
用途:需要深度测序的数据,样本一般分为:宿主来源,如人或动物等;环境来源,如土壤或水体等。数据分析时,前者一定要考去除宿主缘DNA,后者要高度深度测序对后期拼接有较大帮助。
Methods Protocol
- DNA isolation
- Library preparation
- Sequencing
- Data QC: FastQC, FastX_toolkit
- Reads assembly: IDBA-UD, Mira, Velvet/MetaVelvet
- Partipation: FCP,Phymm/PhymmBL, AMPHORA2, NBC, MEGAN, MG-RAST, CAMERA, IMG/M
- Analysis: MetaPhAln, PhyloSift/pplacer