Introgression of Asian soybean rust resistant genes into elite soybean lines from Uruguay

Soybean is the main agricultural crop in Uruguay. One of diseases with greatest damage potential Asian soybean rust, estimated grain yield losses up 80% region. Throughout history, different authors have stated importance genetic resistance as a fundamental tool to decrease adverse effects phytopathogens, leading agriculture sustainability. The objective this work was introduce rust genes into elite lines INIA’s breeding program and evaluate enhanced resistance. Introgression resistant carried out greenhouse, through three backcrosses from F1. Two donors: Py7-1-47 No6-12-B handed by JIRCAS two combinations (Rpp1-b + Rpp5 Rpp4 Rpp5, respectively) lines: SJ10-122-040, SJ10-158-039, SJ10-173-072 were used. After each backcross, plants carrying both selected marker assisted selection. Each third backcross self-pollinated (BC3F2) single plant families inoculated greenhouse. Percentage within introgressed ranged 42% 98%, compared fully susceptible recurrent parents.