TABLE 1.

Transition types in the infinite-alleles model of mutation

	Event (single time step in a Moran model)	Effect on X	Rate (death selection)	Rate (reproduction selection)
1	xi dies, xi−2 reproduces, no mutation	x′i−2 = xi−2 − 1
	(i > 2)	x′i−1 = xi−1 + 2
		x′i = xi − 1
2	xi dies, xi−1 reproduces, no mutation	—
	(i > 1)
3	xi dies, xi (same) reproduces, no mutation	—
4	xi dies, xi (different) reproduces, no mutation	x′i−1 = xi−1 + 1
	(i > 1)	x′i = xi − 2
		x′i+1 = xi+1 + 1
5	xi dies, xj reproduces, no mutation	x′i−1 = xi−1 + 1
	(i > 1, j ≠ i, i − 1, i − 2)	x′i = xi − 1
		x′j = xj − 1
		x′j+1 = xj+1 + 1
6	x1 dies, xj reproduces, no mutation	x′1 = x1 − 1
	(j ≠ 1)	x′j = xj − 1
		x′j+1 = xj+1 + 1
7	x1 dies, x1 (different) reproduces, no mutation	x′1 = x1 − 2
		x′2 = x2 + 1
8	xi dies, anything reproduces, mutation	x′1 = x1 + 1	μiixiu
	(i > 1)	x′i−1 = xi−1 + 1
		x′i = xi − 1
9	x2 dies, anything reproduces, mutation	x′1 = x1 + 2	μ22x2u
		x′2 = x2 − 1
10	x1 dies, anything reproduces, mutation	—	μ1x1u

The effects of each of the 10 transition types on X = {x₁, x₂,…, x_2N} and their rates under the two modes of selection.