Quantitative Trait Loci Conditioning Resistance to Phaeosphaeria Leaf Spot of Maize Caused by Phaeosphaeria maydis

The phaeosphaeria leaf spot of maize in Brazil: evidences of a new etiological agent?

spot, has been observed causing severe damage in all maizegrowing areas of Brazil since 1982 (Fantin, 1994). The causal organism of this disease was initially described in the USA as Phaeosphaeria maydis (Henn.) Rane, Payak & Renfro (sin. Sphaerulinia maydis Henn.), anamorph Phyllosticta sp. (Rane et al., 1966). Doubts regarding the etiology of this disease have resulted in several attempts to ...

OCCURRENCE OF NORTHERN LEAF BLIGHT, Phaeosphaeria LEAF SPOT , SOUTHERN LEAF BLIGHT, RUST AND MAIZE STREAK VIRUS IN KENYA

Identification and Mapping of Quantitative Trait Loci Conditioning Resistance to Southern Leaf Blight of Maize Caused by Cochliobolus heterostrophus Race O.

ABSTRACT A random set of recombinant inbred (RI) lines (F2:7) derived from the cross of the inbred lines Mo17 (resistant) and B73 (susceptible) were evaluated for resistance to southern leaf blight (SLB) caused by Cochliobolus heterostrophus race O. The RI lines were genotyped at a total of 234 simple sequence repeat, restriction fragment length polymorphism, or isozyme loci. Field plots of the...

Analysis of quantitative trait Loci for resistance to southern leaf blight in juvenile maize.

ABSTRACT A set of 192 maize recombinant inbred lines (RILs), derived from a cross between the inbred lines Mo17 and B73, were evaluated as 3-week-old seedlings in the greenhouse for resistance to southern leaf blight, caused by Cochliobolus heterostrophus race O. Six significant (LOD >3.1) quantitative trait loci (QTL) were identified for disease resistance, located on chromosomes 1, 2, 3, 6, 7...

Genome-Wide Association Study Reveals Novel Quantitative Trait Loci Associated with Resistance to Multiple Leaf Spot Diseases of Spring Wheat

Accelerated wheat development and deployment of high-yielding, climate resilient, and disease resistant cultivars can contribute to enhanced food security and sustainable intensification. To facilitate gene discovery, we assembled an association mapping panel of 528 spring wheat landraces of diverse geographic origin for a genome-wide association study (GWAS). All accessions were genotyped usin...