Equivalent locations of sucrose synthase genes in chromosomes 7D of wheat, 7Ag of Agropyron elongatum, and 7H of barley

摘要

Wheat/Agropyron 7D/7Ag recombinant chromosomes were analysed by Southern blotting, using cDNA radioactive probes corresponding to the Ss1 and Ss2 sucrose synthase genes of wheat. The genes were located in the central segments of the short arms of both chromosomes 7D and 7Ag. A similar analysis of wheat/barley addition lines demonstrated that DNA sequences that cross-hybridized with the wheat probes were located in chromosome 7H of barley.