The regulation of flowering is best understood in annual plants which flower only once in their lifetime, whereas the repeated cycles of growth and flowering in perennials have not been extensively studied. The identification and study of the perpetual flowering 1 mutant of the perennial Arabis alpina, now gives insight into the different mechanisms of flowering regulation in perennial and annual species, and suggests that patterns of chromatin modification may have a role.
- Renhou Wang
- Sara Farrona
- Maria C. Albani
