highly significantp < 0.01
QTL peaks with a logarithm of the odds (LOD) greater than thresholds determined by 10,000 permutations were considered genome-wide significant ( p < 0.05, LOD > 4.00 microbial abundance, 3.90 measures of diversity) or highly significant ( p < 0.01, LOD > 5.19 microbial abundance, 4.68 measures of diversity) for all models.