In terms of area, the bread
wheat producing regions of China comprise the largest area in the world
that is constantly threatened by stripe rust epidemics. Consequently, it
is important to exploit new adultplant resistance genes in breeding.
This study reports the transfer of stripe rust resistance from Aegilops
variabilis to bread wheat resulting in resistant line, TKL2(R). Genetic
analysis of the segregating populations derived from a cross between
TKL2(R) and a susceptible sister line, TKL2(S),indicated that the
adult-plant resistance to Puccinia striiformis f. sp. tritici in TKL2(R)
is conferred by a single dominant gene. This gene provided resistance
to physiological races currently endemic to China, thus indicating its
potential usefulness in wheat breeding.
Location：