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A Single Dominant Gene for Resistance to the Soybean Aphid in the Soybean Cultivar Dowling
TLDR
Results indicated that a single dominant gene named Rag1 controlled resistance in Dowling, and the monogenic dominant nature of resistance will enable breeders to rapidly convert existing susceptible cultivars to resistant cultivars using backcrossing procedures.
Resistance to the Soybean Aphid in Soybean Germplasm
With an efficient greenhouse screening method, the first resistance to the soybean aphid (Aphis glycines Matsumura) was found in cultivated soybean [Glycine max (L.) Merr.] germplasm. No resistance
Discovery of Soybean Aphid Biotypes
TLDR
These tests confirm that there are at least two distinct biotypes of A. glycines in North America and will be useful sources of resistance to both isolates.
A New Soybean Aphid (Hemiptera: Aphididae) Biotype Identified
TLDR
The identification of soybean aphid biotypes that can overcome Rag1 and Rag2 resistance, even before soybean cultivars with the resistance genes have been deployed in production, suggests that there is high variability in virulence within aphid populations present in North America.
Soybean Aphid Resistance in Soybean Jackson Is Controlled by a Single Dominant Gene
TLDR
Results indicated that a single dominant gene controlled resistance in Jackson, a cultivar found to have strong antibiosis-type resistance to the soybean aphid, and there is no known genetic relationship between Jackson and Dowling.
Crops that feed the World 2. Soybean—worldwide production, use, and constraints caused by pathogens and pests
TLDR
Because the crop is highly nutritious and versatile it offers resources to address world food issues through current and future utilization practices, and with application of newer genomic technologies, the crop has enormous potential to improve dietary quality for people throughout the world.
Inheritance of Resistance to the Soybean Aphid in Soybean PI 200538
TLDR
Since the resis- tance gene in PI 200538 also gave resistance to soybean aphid biotypes 1 and 2, it is pos- sible that the gene is Rag2 and not a new aphid resistance gene, therefore,PI 200538 may be an additional source of Rag2.
Soybean aphid resistance genes in the soybean cultivars Dowling and Jackson map to linkage group M
TLDR
This study mapped the locations of Rag1 and the Jackson gene onto the soybean genetic map and segregated 1:2:1 in the F2:3 populations and mapped to soybean linkage group M between the markers Satt435 and Satt463.
Breeding for Resistance to Soybean Rust.
TLDR
To help minimize the impact of Soybean rust, the first line of defense will be fungicides, with host resistance and yield stability augmenting the long-term management of soybean rust.
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