Table 6.

Pairwise comparison of Paenibacillus ihumii with other species using GGDC, formula 2 (DDH estimates based on identities/HSP length)^a

	Paenibacillus ihumii	Paenibacillus fonticola	Paenibacillus peoriae	Paenibacillus stellifer	Paenibacillus terrae	Paenibacillus borealis
P. ihumii	100%	28% ± 2.43	17.5% ± 2.23	18.2% ± 2.26	17.6% ± 2.23	17.6% ± 2.24
P. fonticola		100%	16.8% ± 2.21	17.1% ± 2.22	17.2% ± 2.22	17% ± 2.22
P. peoriae			100%	18.2% ± 2.26	33.7% ± 2.47	18.1% ± 2.75
P. stellifer				100%	18.3% ± 2.26	19.7% ± 2.3
P. terrae					100%	18.1% ± 2.25
P. borealis						100%

^aConfidence intervals indicate inherent uncertainty in estimating DDH values from intergenomic distances based on models derived from empirical test data sets (which are always limited in size). These results are in accordance with the 16S rRNA and phylogenomic analyses as well as the GGDC results. DDH, DNA-DNA hybridization; GGDC, Genome-to-Genome Distance Calculator; HSP, high-scoring segment pairs.