Abstract
Perennial plants continue the growth for several years repeating annual growth cycle, active growth or dormant phase. In autumn plants cease their growth and buds enter dormancy state called endodormancy, then in spring, they resume their growth. Endodormancy allows plants to survive under severe environmental conditions such as low temperate and drought. However, the molecular mechanism of endodormancy in perennial plants is yet to be well understood. Recently, we revealed that SVP-like MADS-box genes of Prunus mume, named DORMANCY ASSOCIATED MADS-box (PmDAM), are involved in endodormancy. For further understanding the molecular basis of endodormancy, we performed comprehensive expression analysis using custom microarray of P.mume (180Kx3) which is designed from sequences of EST and peach genome database. We will report the results of microarray analysis and discuss several genes which showed the dormancy-related expression patterns similar to PmDAM.
