Table 2.

Percentage of amino acid differences in the alignment (± SD) in the three groups of proteins.

	TOTAL	UNIQUE	REPETITIVE	T-test§
Hox	22.80 ± 10.44	18.22 ± 10.50	37.11 ± 12.33
Hox-derived	40.43 ± 18.26	39.00 ± 19.64	62.97 ± 24.08	***
Non-Hox	23.77 ± 10.81	23.38 ± 10.93	55.46 ± 31.35
ANOVA	n.s.	n.s.	n.s.

n.s. (P > 0.05), * (P < 0.05), ** (P < 0.01), *** (P < 0.001).

^§ T-test for paired samples (unique vs. repetitive) on proteins having both types of regions [ABD-A, LAB, PB, BCD, ZEN, Ccp84Ac, CG13617, CG14290 and LAP (product of CG2520)].