Glutamate Dehydrogenase Isozyme Pattern As a Unique Marker for Identifying Cold-Tolerant Wheat Genotypes

Identification of wheat genotypes that are tolerant to cold by using glutamate dehydrogenase isozyme pattern has been investigated. Glutamate dehydrogenase isozyme analysis of cold-tolerant wheat genotypes (VWFW1350 and HS240) and cold-sensitive wheat genotypes (VL404 and HD 1949) under cold-acclimated and non-acclimated conditions have shown that one unique glutamate dehydrogenase isozyme form was expressed in the cold tolerant genotypes under cold acclimated condition. This particular isozymic form has the potential to serve as a biochemical marker for selecting cold tolerant genotypes.