In 1953, Hylander et al. (1953) revived the name P. striiformis.A stripe rust outbreak in northwest Syria contributed to the beginning of the Syrian Civil War by increasing food prices.

[2] Other cereal rust fungi have macrocyclic, heteroecious life cycles, involving five spore stages and two phylogenetically unrelated hosts.

P. striiformis was thought to be microcyclic for centuries until 2009, when a team of scientists at the USDA-ARS Cereal Disease Lab led by Yue Jin confirmed that barberry (Berberis and Mahonia spp.)

[4] (Then P. striiformis was accidentally discovered to also have the same alternate host when scientists observed rust infection on various barberry species, and inoculated spores of this unknown rust onto Poaceae hosts.

)[3][5] Later, infected wheat plants bearing teliospores were soaked in water and suspended over barberry species.

Since yellow rust can occur whenever the wheat plants in green and the environmental condition conducive for the spore infection, yellow rust is a severe problem in the wheat-producing regions worldwide.

[12][13] Development of varieties resistant to the disease is always an important objective in wheat breeding programs for crop improvement.

This has been done in the past, however as normal, these resistance genes became ineffective due to the acquisition of virulence to that particular resistance gene rendering the variety susceptible - necessitating ongoing variety development.

QYr.niab-2D.1 is a quantitative trait locus (QTL) for adult plant resistance (APR).