Table 3.

Deletion and Insertion Profile in Tetraodontid (Smooth) and Diodontid (Spiny) Puffers

	Tetraodontidae	Diodontidae	Significance
Ratio of deletions to point substitutions	0.04 (0.026–0.063)	0.06 (0.044–0.079)a	NSb
Ratio of insertions to point substitutions	0.03 (0.017–0.049)	0.03 (0.018–0.043)	NS
Average deletion size (bp)	19.8	19.1	NS
Average insertion size (bp)	2.7	2.6	NS
Deletion bias (base pairs lost/substitution)c	0.7	1.1	NS

^aNumbers in parentheses are 95% confidence intervals estimated by bootstrapping.

^bNot statistically significant.

^cDefined as (deletion rate) × (average deletion size) − (insertion rate) × (average insertion size).