Mining Sources of Resistance to Durum Leaf Rust among Tetraploid Wheat Accessions from CIMMYT's Germplasm Bank.

A collection of 482 tetraploid wheat accessions from the CIMMYT Germplasm Bank was screened in the greenhouse for resistance to leaf rust disease caused by the fungus E. The accessions were screened against two races CBG/BP and BBG/BP in the field at two locations: against race CBG/BP at the Norman E. Borlaug Experimental Station (CENEB) located in the Yaqui Valley in the northern state of Sonora in Mexico during the 2014-2015 growing season; and against race BBG/BP at CIMMYT headquarters in El Batan, Texcoco, in the state of Mexico in the summer of 2015.

Occurrence of the Species Complex Causing Fusarium Head Blight of Wheat in Mexico.

Fusarium head blight (FHB) is one of the most important diseases affecting wheat production worldwide. In Mexico, and are the dominant species causing FHB of wheat (Cerón-Bustamante et al. 2018).

Genome-wide mapping and allelic fingerprinting provide insights into the genetics of resistance to wheat stripe rust in India, Kenya and Mexico.

Stripe or yellow rust (YR) caused by Puccinia striiformis Westend. f. sp.