No genotype effect: at least one unchanged taxon called different: relative abundance, mice as n, uncorrected 99.6%; CLR, mice as n, BH 68.9%; CLR, cages as n, BH 2.6%; taxon 1 detected (CLR, cages as n, BH) 0.1% KO raises taxon 1 four-fold: at least one unchanged taxon called different: relative abundance, mice as n, uncorrected 100.0%; CLR, mice as n, BH 81.6%; CLR, cages as n, BH 4.3%; taxon 1 detected (CLR, cages as n, BH) 23.4%