Abstract
Asian soybean rust caused by Phakopsora pachyrhizi, occurs in all soybean production regions of the world. Rust is the most destructive foliar disease of soybean and can cause yield losses of over 80%. To date, six race-specific resistance genes have been identified in plant introductions. However, races of P. pachyrhizi able to overcome the resistance conferred by these genes have evolved. Due to the limited availability of resistant varieties, fungicide application is the only management tool available for farmers, which significantly raises the production cost and the risk of environmental and human contamination. Thus, the transfer of resistance genes through classical breeding followed by marker-assisted selection allows the development of resistant varieties and their use as an efficient and cost-effective method for controlling soybean rust. The objective of this review is to provide a broad overview of the Asian soybean rust resistance, and a useful tool to guide future researches as well.
Highlights
Soybean is one of the most important economic crops as a source of protein and oil
Asian soybean rust caused by Phakopsora pachyrhizi (Sydow. & Sydow.)is the most destructive, and over 80% losses are common when environmental conditions are conducive to disease development (Figure 1)
There are no reports of negative economic effects due to soybean rust in the United States, there are up to 33% yield losses documented in experiments with no fungicide application [13]
Summary
Carlos Renato Echeveste da Rosa1*, Carlos Roberto Spehar and Jean Q. Liu3 1Du Pont Pioneer - Soybean Plant Pathology, 73310-970, Planaltina, DF, Brazil 2Universidade de Brasilia - Faculdade de Agronomia e Medicina Veterinária, 70910-970, Brasilia, DF, Brazil 3ARQ Solutions, Chicago, IL, 60613, USA
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