Table 1.

Overall mean genetic distances (± standard errors) of nucleotide and amino acid sequences of expressed MHC I (nine) and MHC II-DRB (four) alleles in 108 and 139 Namibian cheetahs, respectively.

								Genetic distances
MHC	Region	Length	V	C	Si	%Si	No. differences	All sites	ABS	Non-ABS
Class I	Exon 2	249	36	213	21	8.43	17.07 ± 2.71	0.07 ± 0.01	0.19 ± 0.05	0.04 ± 0.01
	Exon 3	263	40	223	13	4.94	16.73 ± 2.42	0.07 ± 0.01	0.18 ± 0.05	0.05 ± 0.01
	Intron 2	200/202	12	190	3	1.48	4.80 ± 1.41	0.03 ± 0.01	—	—
	Alpha 1	83	22	61	13	15.66	10.67 ± 1.95	0.14 ± 0.03	0.40 ± 0.11	0.08 ± 0.03
	Alpha 2	87	17	70	4	4.60	7.60 ± 1.79	0.09 ± 0.02	0.33 ± 0.12	0.05 ± 0.02
Class II-DRB	Exon 2	243/246	41	205	6	2.44	22.17 ± 3.20	0.10 ± 0.02	0.20 ± 0.04	0.06 ± 0.01
	Beta 1	81/82	25	57	5	6.10	14.33 ± 2.43	0.20 ± 0.04	0.50 ± 0.13	0.10 ± 0.03

NOTE.—V, variable; C, conserved; Si, parsimony-informative sites; %Si, Si percentage. The mean number (± standard error) of differing nucleotides and amino acids among the MHC I and MHC II-DRB alleles, respectively, are shown. Genetic distances are presented for all sites, ABS and non-ABS.