Evolutionary history of Nile perch Lates sp. inferred from mitochondrial DNA variation analyses

Zoological Studies

Table 4 Observed 95% CIs of simulated S and demographic parameters among Nile perch lineages

Group	Population	S	95% CI	τ	θ ₀	θ ₁	P(SSD _sim)	P(SSD _obs)	Hri	P(Hri)
East Africa	Albert Lake	15	1 ~ 14	13.81 (0.04 ~ 68.81)	0.00 (0.00 ~ 3.57)	2.11 (0.16 ~ 99,999.00)	0.240	0.126	0.339	0.20
	Kyoga Lake	3	1 ~ 10	0.97 (0.00 ~ 2.45)	0.00 (0.00 ~ 0.05)	99,999.00 (1.35 ~ 99,999.00)	0.580	0.012	0.127	0.60
	Nabugabo Lake	19	2 ~ 12	2.20 (0.04 ~ 4.18)	0.00 (0.00 ~ 1.40)	99,999.00 (2.41 ~ 99,999.00)	0.130	0.085	0.164	0.48
	Chamo Lake	2	0 ~ 7	1.51 (0.00 ~ 4.30)	0.00 (0.00 ~ 2.53)	99,999.00 (16.84 ~ 99,999.00)	0.650	0.037	0.250	0.74
	Turkana Lake	3	3 ~ 12	1.60 (0.00 ~ 3.23)	0.00 (0.00 ~ 0.97)	99,999.00 (4.79 ~ 99,999.00)	0.680	0.011	0.087	0.76
	Victoria Lake	33	19 ~ 41	1.25 (0.24 ~ 5.65)	1.25 (0.00 ~ 2.16)	26.25 (4.05 ~ 99,999.00)	0.300	0.008	0.021	0.85
West Africa	Senegal River	11	6 ~ 18	1.56 (0.48 ~ 2.75)	0.00 (0.00 ~ 0.53)	99,999.00 (2.92 ~ 99,999.00)	0.170	0.028	0.104	0.34

CIs, confidence intervals; S, number of polymorphic sites. τ, θ ₀, and θ ₁ are the age of expansion and population size before and following expansion, expressed in units of mutational time, respectively. SSD is sum of square deviations between the observed and the expected mismatch distribution for a demographic history of the lineage defined by estimates of the τ, θ ₀, and θ ₁ parameters. P (Hri) is the probability of observing by chance a higher value of the raggedness index than the observed one, under a hypothesis of population expansion. Population age ranges are given with 95% CIs of τ for 1,000 mismatch distribution replicates.