. 2010 Oct 26;10:326. doi: 10.1186/1471-2148-10-326

Table 4.

Mismatch analysis estimated parameters

	Lake Nicaragua		Lake Managua
	*A. citrinellus*	*A. labiatus*	*A. citrinellus*	*A. labiatus*	Tisma Pond	Lake Asososca León	Lake Apoyeque	Lake Xiloá	Lake Asososca Managua	Lake Masaya	Lake Apoyo

Mean no. of differences											1.594
τ	-	4.167	2.852	1.781							0.836
θ₀	-	0.739	2.167	0.034	0.316	0.156	0.001	0.066	0.040	0.060	0.006
θ₁	-	27457.3	54099.3	73519.2	10366.5	30380.4	16999.9	58317.6	50978.8	43333.2	81522.500
SSD	0.055**	0.002^ns	0.016^ns	0.005^ns	0.027^ns	0.038^ns	0.0001^ns	0.0001^ns	0.033^ns	0.007^ns	0.057**
Raggedness index	0.012^ns	0.008^ns	0.022^ns	0.064^ns	0.034^ns	0.098^ns	0.594^ns	0.034^ns	0.145^ns	0.032^ns	0.031^ns

τ is the moment estimator of the age of the expansion; θ₀and θ₁are the mutation parameters before and after the expansion respectively; SSD is the test of the validity of a stepwise expansion model based on the sum of square deviations between the observed and the expected mismatch, and the significance of the test is estimated with a parametric bootstrap approach, and the same method is used to test the significance of the Raggedness index (probability values: *p < 0.05, **p < 0.001, ns = non-significant).