8Nei M and Li W H.Mathematical model for studying genetic variation in terms of restriction endonuc leases[J].Proc Natl Acad Sci USA,1997,76(10):5269~5273.
9Staskwicz B J,Ausube(FM,Baker),Ellis JG.et al.MOlecular geneties of plant disease resistance[J].science 1995(268):661~667.
10Wolfe M S.The current status and prospects of multilane cultivara and variety mixture of disease resistance[J].Annual Review of phytopathology,1985(23):25 1~273.