Abstract Recently diverged butterfly populations in North America have been found to exhibit high levels of divergence on the Z chromosome relative to autosomes, as measured by fixation index, Fst. The pattern of divergence appears to result from accumulation of incompatible alleles, obstructing introgression on the Z chromosome in hybrids (i.e., the large‐Z effect); however, it is unknown whether this mechanism is sufficient to explain the data. Here, we simulate the effects of hybrid incompatibility on interbreeding butterfly populations using a model in which populations accumulate cross‐incompatible alleles in allopatry prior to contact. We compute statistics for introgression and population divergence during contact between model popul...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Most speciation events probably occur gradually, without complete and immediate reproductive isolati...
Sex chromosomes are disproportionately involved in reproductive isolation and adaptation. In support...
Sex chromosomes are disproportionately involved in reproductive isolation and adaptation. In support...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Most speciation events probably occur gradually, without complete and immediate reproductive isolati...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Zones of secondary contact between closely related taxa are a common legacy of the Quaternary ice ag...
Most speciation events probably occur gradually, without complete and immediate reproductive isolati...
Zones of secondary contact between closely related taxa are a common legacy of the Quaternary ice ag...
ABSTRACT Hybridisation and introgression can dramatically alter the relationships among groups of sp...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Most speciation events probably occur gradually, without complete and immediate reproductive isolati...
Sex chromosomes are disproportionately involved in reproductive isolation and adaptation. In support...
Sex chromosomes are disproportionately involved in reproductive isolation and adaptation. In support...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Most speciation events probably occur gradually, without complete and immediate reproductive isolati...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Zones of secondary contact between closely related taxa are a common legacy of the Quaternary ice ag...
Most speciation events probably occur gradually, without complete and immediate reproductive isolati...
Zones of secondary contact between closely related taxa are a common legacy of the Quaternary ice ag...
ABSTRACT Hybridisation and introgression can dramatically alter the relationships among groups of sp...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Hybridisation and introgression can dramatically alter the relationships among groups of species, le...
Most speciation events probably occur gradually, without complete and immediate reproductive isolati...