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- Kloppers, Frederik, et al. Show all 9 Authors
- Theoretical and applied genetics 2018 v.131 no.10 pp. 2245-2266
- Puccinia graminis; barley; chromosomes; grain crops; mature plants; pathogens; quantitative trait loci; races; resistance genes; stem rust; virulence; Kenya; Minnesota
- ... Key message Major stem rust resistance QTLs proposed to be Rpg2 from Hietpas-5 and Rpg3 from GAW-79 were identified in chromosomes 2H and 5H, respectively, and will enhance the diversity of stem rust resistance in barley improvement programs. Stem rust is a devastating disease of cereal crops worldwide. In barley (Hordeum vulgare ssp. vulgare), the disease is caused by two pathogens: Puccinia gram ...
- Kloppers, Frederik J., et al. Show all 4 Authors
- European journal of plant pathology 2009 v.124 no.4 pp. 577-583
- Cercospora zeae-maydis; DNA; DNA fragmentation; DNA primers; Zea mays; conidia; corn; fungi; genes; grey leaf spot disease; histones; internal transcribed spacers; leaves; pathogens; plantations; polymerase chain reaction; rapid methods; sequence alignment; South Africa; Zambia; Zimbabwe
- ... The aim of our study was to identify the causal agent of grey leaf spot disease of maize in southern Africa. Single-conidial cultures were recovered from maize leaves with typical disease symptoms sampled from several fields in South Africa, Zambia and Zimbabwe. Morphology, cultural characteristics, and a PCR-based test using Cercospora zeae-maydis and C. zeina-specific primer sets identified all ...
- Kloppers, Frederik J., et al. Show all 9 Authors
- Plant biotechnology journal 2007 v.5 no.6 pp. 759-767
- Maize streak virus; Zea mays; corn; crops; crossing; disease resistance; genes; genotype; hybrids; pathogens; survival rate; transgenic plants; Africa
- ... In this article, we report transgene-derived resistance in maize to the severe pathogen maize streak virus (MSV). The mutated MSV replication-associated protein gene that was used to transform maize showed stable expression to the fourth generation. Transgenic T₂ and T₃ plants displayed a significant delay in symptom development, a decrease in symptom severity and higher survival rates than non-tr ...