Table 2.

Genetic diversity of MHC in 3 Chinese alligator populations.

Population	Locus	Allele 01	Allele 02	H O	H E	P-value of HWE	Tajima’s D test
ZJ	I1327	0.73	0.27	0.469	0.396	0.396	1.711
AH	I1327	0.69	0.31	0.375	0.437	0.441	2.083*
USA	I1327	0.70	0.30	0.200	0.442	0.132	1.518
ZJ	I20	0.36	0.64	0.531	0.468	0.699	2.611*
AH	I20	0.22	0.78	0.375	0.347	1.000	1.383
USA	I20	0.10	0.90	0.200	0.189	1.000	0.949
ZJ	Beta1085	0.98	0.02	0.031	0.092	0.015*	−1.953*
AH	Beta1085	0.91	0.09	0.125	0.231	0.008*	−1.524
USA	Beta1085	1.00	0.00	—	—	—	—

Note: the predominant alleles are in bold; * indicates P < 0.05; H _O and H _E are observed and expected heterozygosities, respectively.