Archaea 1 Article 1 Clustered Regularly Interspaced Short Palindromic Repeats 1 DNA sequence 1 Gastrointestinal Microbiome 1 Humans 1 Inoviridae Metagenome 1 Metagenomics 1 Microviridae 1 Plasmids 1 Sequence Analysis, DNA 1 Viruses 1 archaeon 1 bacteriophage 1 clustered regularly interspaced short palindromic repeat 1 controlled study 1 gene sequence 1 gene targeting 1 genetic code 1 genetic database 1 genetics 1 genome analysis 1 human 1 intestine flora 1 intestine villus 1 marker gene 1 metagenome 1 metagenomics 1 molecular evolution 1