about the marker position

[zhz]

gramene

	i am a researcher in China, last two month , i checked some markers for rice and markered them in my physical map ,but today ,i checked these markers again but to my surprise, their positions in map (Rice-Gramene TIGR Assembly 2004) are all been changed ,it must affect my research work very seriously ,so i wanna know why this happen ? thanks a lot 

　　　　　　　　zhz
　　　　　　　　zhz at sagc.org.cn
　　　　　　　　　　2004-09-13