Jeremy S. Johnson

Range-Wide Geographic Variation of Major Gene Resistance ( Cr 3) to White Pine Blister Rust in Pinus strobiformis (Southwestern White Pine)

Southwestern white pine (Pinus strobiformis) is native to the U.S. and Mexico and is susceptible to the pathogen Cronartium ribicola, which causes the disease white pine blister rust. A major gene, Cr3, confers resistance to the disease. While Cr3 has been observed at low frequen...