No references found indicating rye seed is a pathway. Rye is not considered an important host and reports of infection by this pathogen were from the 1930's and previous.
Fungicide seed treatments have been described for wheat seed.
Triticum aestivum
wheat
Yes
TILLCA-2, TILLCA-3, TILLCA-4
Seed as a pathway is well established and accepted.
Yes
Seed wash
This test has not been validated or standardized.
TILLCA-1, TILLCA-5
Fungicide seed treatments
Resistant varieties and seed treatments has decreased the importance of this disease in wheat and resulted in the complete control of the pathogen in the US and much of the wheat production.
Ballinger DJ, Gould GJ, 1989. Occurrence of spores of Tilletia lpvis and T. tritici in wheat deliveries in western Victoria. Australasian Plant Pathology, 18:6-7