Table 2.

omtA gene polymorphism statistics for Aspergillus flavus from a single Mississippi field.

Season/Source/Year	Sequence and haplotype				Nucleotide diversity				Population expansion
	N	S	H	Hd ± sd	π	K	θ s	θ g	D +	F +	Fs	S	D
May–Oct./soil/2006	8	28	4	0.64 ± 0.18	0.020	12.17	0.018	10.79	0.96	0.99	4.86	0.05	0.67
May–Oct./soil/2007	10	26	4	0.53 ± 0.18	0.014	8.77	0.015	9.19	1.11	0.88	5.02	0.03	−0.21
May–Oct./soil/2008	8	39	5	0.78 ± 0.15	0.023	14.25	0.025	15.42	0.15	0.02	3.32	0.16	−0.40
May–Oct./above ground/2006	9	28	5	0.86 ± 0.08	0.022	13.27	0.017	10.30	1.32	1.51	3.92	0.09	1.44
May–Oct./above ground/2008	10	32	5	0.66 ± 0.16	0.011	6.88	0.020	12.01	−2.36*	−2.58*	2.45	0.23	−2.05*
Jan.–April/soil/2006	15	28	5	0.59 ± 0.14	0.015	9.27	0.014	8.80	0.92	0.84	5.34	0.02	0.22
Jan.–April/soil/2007	23	26	4	0.52 ± 0.09	0.016	9.84	0.011	7.04	1.20	1.51	11.4	0.00	1.49
Jan.–April/soil/2008	17	24	2	0.22 ± 0.12	0.008	5.29	0.011	7.09	1.59*	0.98	10.3	0.00	−1.02
Jan.–April/soil/2009	5	25	3	0.80 ± 0.16	0.024	14.80	0.020	12.00	1.73*	1.86*	4.74	0.09	1.73
Jan.–April/plant debris/2006	5	23	2	0.40 ± 0.23	0.015	9.20	0.018	11.04	−1.23*	−1.32	6.64	0.02	−1.23
Jan.–April/plant debris/2007	4	23	3	0.83 ± 0.22	0.001	1.00	0.001	1.09	−0.70	−0.60	−0.88	0.95	−0.70
Jan.–April/plant debris/2008	4	23	2	0.66 ± 0.20	0.025	15.33	0.021	12.54	2.28*	2.38*	6.76	0.03	2.28*
Combined	118	68	24	0.61 ± 0.04	0.018	11.08	0.023	13.94	−4.07*	−3.13*	1.83	0.20	−0.65

Note: N = number of sequences; S = number of variable sites; H = number of haplotypes; Hd = haplotype diversity ± standard deviation; π = nucleotide diversity; K = mean number of pairwise nucleotide differences; θ _s = theta per site; θ _g = theta per gene; D ⁺and F ⁺ statistics (Fu and Li 1993) [21]; Fs  Fu's  F's statistic; Strobeck S statistic (Strobeck 1987) [22]; D = Tajima's (1989) [23] statistic; ^* P < 0.05.