Table 1.

Effect of the ith X‐linked locus on sex‐specific survival and overall fitness

	X‐Linked Genotype
	AA, A	Aa, –	aa, a
Female fitness	1	1 – hisf,i	1 – sf,i
Male fitness	1	–	1 – sm,i
Female survival	1	1 – hisf,iαf,i	1 – sf,iαf,i
Male survival	1	–	1 – sm,iαm,i

Parameters include female and male selection coefficients (s_f,i , s_m,i ), the dominance coefficient (h_i ), and the effect of the mutation on survival relative to its effect on overall fitness (α_f,i , α_m,i , where, e.g., α_f,i  = 1 under pure viability selection and α_f,i  = 0 under pure fecundity selection).