Abstract
Autoimmunity: A Barrier to Gene Flow in Plants?
Highlights
150 years after Darwin published The Origin of Species, evolutionary biologists are still working out the conditions and processes that give rise to new species
Hybrid necrosis occurs in crosses within and between species, suggesting that similar evolutionary processes may be at work at different times as the genes of the interbreeding species drift apart
Conditions like hybrid necrosis, according to the classic Dobzhansky-Muller model of hybrid incompatibility, arise from deleterious interactions between genes inherited from the parents
Summary
150 years after Darwin published The Origin of Species, evolutionary biologists are still working out the conditions and processes that give rise to new species. One postfertilization mechanism in plants, called hybrid necrosis, arises from interactions between genes that cause misshapen, yellow, or damaged leaves and stunted growth, much like an infection. Conditions like hybrid necrosis, according to the classic Dobzhansky-Muller model of hybrid incompatibility, arise from deleterious interactions between genes inherited from the parents.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have