Evaluation of soybean genotypes for resistance against the rust-causing fungus Phakopsora pachyrhizi in East Africa

Simple item page
dc.contributor.authorMurithi, Harun Muthuri
dc.contributor.authorNamara, Mercy
dc.contributor.authorTukamuhabwa, Phinehas
dc.contributor.authorMahuku, George
dc.contributor.authorThomma, Bart P. H. J.
dc.contributor.authorJoosten, Matthieu H. A. J.
dc.date.accessioned2025-10-22T05:33:35Z
dc.date.available2025-10-22T05:33:35Z
dc.date.issued2021-01-16
dc.description.abstractSoybean rust, caused by the biotrophic fungus Phakopsora pachyrhizi, is the most important foliar disease of soybean (Glycine max) worldwide. Deployment of resistant soybean cultivars is the best option for managing this disease. Genes conferring resistance to P. pachyrhizi have been identified, but pathotypes of the rust fungus overcoming these resistance genes have also been found. To identify novel resistance genes, soybean genotypes from both local and international sources were screened at multiple locations in Tanzania and Uganda in 2016 and 2017. The results from this screening revealed that infection types, disease severities, and sporulation levels varied among the genotypes and locations. The majority of the genotypes had tan-coloured (TAN) lesions and developed moderate sporulation, implying susceptibility, while only seven of the 71 lines had reddish-brown (RB) lesions and showed low disease severities in all of the screening environments. We identified seven genotypes that were the most resistant to rust in the most locations over the two years. These genotypes will be useful for further studies and, ultimately, for rust management, as they show broad resistance to various pathotypes of the rust fungus.
dc.identifier.citationMurithi, H. M., Namara, M., Tamba, M., Tukamuhabwa, P., Mahuku, G., van Esse, H. P., ... & Joosten, M. H. (2021). Evaluation of soybean genotypes for resistance against the rust‐causing fungus Phakopsora pachyrhizi in East Africa. Plant Pathology, 70(4), 841-852.
dc.identifier.otherhttps://doi.org/10.1111/ppa.13339
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/12160
dc.language.isoen
dc.publisherPlant Pathology
dc.titleEvaluation of soybean genotypes for resistance against the rust-causing fungus Phakopsora pachyrhizi in East Africa
dc.typeArticle
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Plant Pathology - 2021 - Murithi - Evaluation of soybean genotypes for resistance against the rust‐causing fungus.pdf
Size:
970.87 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Agricultural and Veterinary Sciences