The accurate identification and classification of wild species enhance
the utilization of potential plant genetic resources. The wild rye sp
ecies Secale vavilovii Grossh. may serve to broaden the genetic variat
ion in cultivated rye, S. cereale. The combined analyses of cytologica
l, isozymic and other genetic characteristics in the present study rev
ealed that of the fourteen rye accessions designated as S. vavilovii,
only three accessions were correctly classified. Thus it is essential
to increase multidisciplinary, international research and collaboratio
n to aid in the classification and utilization of the yet untapped pla
nt germplasm.