I posted this topic in the GardenWeb forum and would like to seek more opinions on this matter especially from those specialized in genetics. Here by acclimatization I am implying that a deciduous plant can adapt to survive in tropical conditions. I have known of certain species of deciduous plants which have been successfully cultivated in the tropics. The best example is the Wrightia religiosa which is the favorite plant for bonsai in South-East Asia. It has adapted to do without winter dormancy and as a result it does not flower unless you defoliate the plant completely. Also many types of temperate evergreens have survived the tropical heat like the pines and others too. Now the point I am looking for is whether the modifications or adaptations have become inheritable traits for its progeny. I believe they are inheritable, as the seedlings grown from Wrightia religiosa mother plant cultivated in the tropics show they thrive in a tropical environment, without the stress and modifications which their temperate ancestors have had to undergo. In fact when these seedlings are grown in temperate climate, they do poorly and their growth is incredibly slow. Thus it can be inferred that there must be changes in their genes when they have become acclimatized to a tropical environment. I greatly appreciate if anyone can shed some light on this point.