In 1983, transgenic plants were introduced by four groups of authors.  However, commercial use of transgenic plants dates from 1996.  Since its first application, cultivation area of transgenic crops around the world has been permanently increasing.  Transferring of a transgene from microorganisms, animals, and distant plants, transgenic plants can obtain novel treats that would probably never be introduced by conventional breeding.  New treats that plants can get in nature by spontaneous mutations and breeding occur slowly.  During the evolution organisms have been accommodated to changes in their environment, in contrast to revolutionary changes introduced by molecular biology methods applied on production of transgenic crops.  This can make disbalance among organisms and cause some ecological problems.  Such problems can be solved by regulations which forbid use of transgenic crops without vigorous assays for safe application.