Figure 1: Schematic view of sex-asymmetric inbreeding.
From: Sex ratio biases in termites provide evidence for kin selection
(a) The typical eusocial breeding system for sex-asymmetric inbreeding. Monogamous founding pairs produce outbred F1 offspring but inbred F2 offspring as the colony grows and both may contribute to founding the next generation of colonies. (b) Mother–son inbreeding resulting in sex-asymmetric genetic contributions, where F2 individuals inherit 0.75 maternal genes and 0.25 paternal genes. (c) Full-sib inbreeding resulting in sex-symmetric genetic contributions, where the grandoffspring (F2) inherit 0.5 maternal genes and 0.5 paternal genes.
