Figure 1From: Coexistence of diploid and triploid hybrid water frogs: population differences persist in the apparent absence of differential survivalSimplified illustration of gamete production and population maintenance of all-hybrid P. esculentus populations. Note that the frogs mostly produce offspring with genotypes different from their own. LL and RR die before sexual maturity; LRR males (and LLRR frogs) are formed rarely, because LR sperm (as opposed to LR eggs) is rare.Back to article page