Selection against hybrid incompatibilities is expected to generate an excess of conspecific associations.
In particular, selection against hybrid incompatibilities is expected to generate positive R, or conspecific associations between loci.
No significant solid-state incompatibilities are expected in the electrospun binary mixtures of PRX and the present synthetic graft copolymer.
As a result, genic incompatibilities are expected to quickly develop between nuclear and mitochondrial genes that evolve independently from each other in individuals from different populations and species.
However, mito-nuclear incompatibilities may occur in hybrids due to the breaking apart of coadapted complexes, and these incompatibilities are expected to be manifested asymmetrically in one of the two hybrid families (Turelli and Moyle 2007).
Because BDM incompatibilities are expected to accumulate with the divergence of two species, identifying such incompatibilities from closely related species is most relevant to understanding speciation (Nosil and Schluter 2011).
Hybrid incompatibilities are expected to evolve slowly [ 71, 72], and the rate probably decreases with increasing life-span and generation times due to maintenance of ancestral polymorphisms [e.g. [ 73]].
In addition to the concept that symmetrical effects could be due to accumulation of multiple independent DMIs (Turelli and Orr 2000; Turelli and Moyle 2007), it has also been noted that such complex incompatibilities are expected to be common (Orr 1995; Coyne and Orr 2004).
If the endosymbiotic bacteria cause cytoplasmic incompatibility in the host, the infection frequency is expected to be either low or high, as intermediate frequencies would commonly lead to incompatibilities [ 9].
When there is on-going interbreeding between two the species (as is the case with the swordtails), this finding is expected only if these incompatibilities reduce the hybrids' chances of finding mates or surviving.
