CONTROL OF PLANT FLOWERING TIME BY REGULATING THE EXPRESSION OF PHYTOCHROME C

摘要

It is found out that a rice phyC gene mutant, which is a plant isolated by a method of isolating a mutant with the use of a mutant panel, shows a flowering (earing) time about 1 week earlier than a control in case of growing under long-day conditions. This result indicates that plant flowering can be promoted under long-day conditions by regulating the expression of phyC gene. The promotion of plant flowering with the use of phyC gene can largely contribute to breeding of useful crops or ornamental plants having novel characteristics suitable for cultivation areas or cultivation times, etc. Moreover, a rice phyC gene mutant, the flowering of which is promoted under long-day conditions, is highly expected as a novel rice variety with quickened harvest.