Ohio Closer To Aphid Resistance

While some areas will begin planting soybean aphid-resistant plants this coming season, growers in Ohio will have to wait a little longer. A soybean plant introduction (PI) has been found to show resistance to soybean aphid in that state, paving the way to control the insect through new resistant cultivars as soon as 2010.

 

The soybean PI, labeled PI 243540, contains a single dominant gene — named Rag2 — that allows the plant to resist soybean aphid feeding and aphid colonization. This finding is the latest in a series of national research efforts to more effectively manage soybean aphid. The University of Illinois, Michigan State University, and Kansas State University have all identified their own soybean plant lines that show resistance to soybean aphid.

 

Actually, the new plant line was identified after a known soybean aphid-resistant plant developed by the University of Illinois failed to produce the desired results in Ohio. Scientists realized that the soybean aphid biotype in Ohio was different than the one in Illinois and could overcome resistance to Illnois’ Rag1 gene, not all that surprising since soybean aphids are capable of developing new bioteypes very rapidly.

 

The scientists at Ohio State University‘s Ohio Agricultural Research and Development Center are working to develop a food-grade soybean cultivar that the Ohio biotype won’t colonize. The research is designed to transfer the Rag2 gene into susceptible soybean varieties and test their resistance to the aphid in both the greenhouse and in the field. Researchers are seeing promising results and hope to have breeding lines available for release by the end of 2010 if agronomic characteristics — such as yield and resistance to major diseases — hold up.

 

In addition to PI 243540, other soybean plant introductions that show resistance to soybean aphid have been identified by the Ohio scientists, albeit on a moderate level. The hope is that those findings can be used to develop partial-resistant soybean cultivars, whereby multiple genes rather than a single, dominant gene define resistance.

 

Soybean cultivars containing the Rag1 gene should be commercially available beginning next year. However, these cultivars are not recommended for Ohio growers. If they choose to plant these new cultivars, their control option will still be to spray insecticides when aphid populations reach threshold.

(Source: The Ohio State University)

 

Leave a Reply

Latest News
CHS St. Paul, MN fertilizer terminal
CropLife 100Farmers Union Oil Co. Votes To Join CHS
September 30, 2016
Eligible voting members of Farmers Union Oil Co., a diversified agricultural retailer based out of Oslo, MN, have cast affirmative Read More
EmployeesOABA Program Develops Future Generation Of Agribusiness…
September 29, 2016
The Ohio AgriBusiness Association will select up to 25 promising leaders to participate in a leadership enhancement program early next Read More
ManagementThoughts on CropLife America and the PSM Appeal
September 29, 2016
Editors Paul Schrimpf and Eric Sfiligoj talk about the recent CropLife America annual meeting and the successful appeal of the Read More
Corn Field
Industry NewsMarrone Bio Innovations’ SVP And Chief Sustainability O…
September 29, 2016
Marrone Bio Innovations, Inc., a leading provider of effective and environmentally responsible pest management and plant health products, announced today Read More
Young Corn Field
StewardshipStudy: Ohio Farmers Doing ‘A Good Job Of Managing…
September 27, 2016
Leaders from Ohio’s largest grain farming organizations announced today that Ohio farmers are doing their part in effectively managing phosphorus Read More
Growmark FS Outlet
Industry NewsGROWMARK To Purchase Suncor’s Share Of UPI
September 26, 2016
GROWMARK and Suncor have reached an agreement in which GROWMARK will purchase Suncor’s 50% interest in UPI, Inc. in Ontario, Read More
Corn Field
Eric SfiligojFacing Ag Industry Challenges
September 26, 2016
At the 2016 annual Mid America CropLife Association (MACA) meeting in September, a pair of crop protection company representatives discussed Read More
Syngenta Seedcare Institute
Seed/BiotechSyngenta Opens New North America Seedcare Institute In …
September 23, 2016
Syngenta unveiled its new Seedcare Institute in Stanton, MN, during a recent grand opening celebration. More than 150 industry leaders, Read More
StewardshipMonsanto Invests $1.6 Million In System To Quantify Gre…
September 23, 2016
The USDA – Natural Resources Conservation Service (USDA-NRCS) recently awarded the National Corn Growers Association (NCGA) and its Soil Health Read More
Pipe rack
LegislationCourt Sides With Ag Retailers On PSM
September 23, 2016
The D.C. Court of Appeals has ruled the Occupational Safety and Health Administration violated the Occupational Safety and Health Act when Read More
ManagementPacific Coast Fertilizer Announces Interest In Longview…
September 22, 2016
Pacific Coast Fertilizer LP (PCF) announced at the Cowlitz Economic Development Council board of directors meeting its interest in developing Read More
Young corn plants in soil
UncategorizedCool Planet Raises Additional $9 Million To Commerciali…
September 22, 2016
Cool Planet has announced the first close of a new financing round to commercialize the company’s Cool Terra Engineered Biocarbon Read More
Crop InputsJim Loar Promoted To President And CEO Of Cool Planet
September 22, 2016
In a move that reflects and reinforces the company’s commitment to the agricultural market, the Cool Planet board of directors Read More
BlendersNorth Dakota Coop Debuts Dry Fertilizer Plant
September 22, 2016
North Central Grain Cooperative has begun operations at a new dry fertilizer plant at its Rolla, ND, site. It is Read More
Crop InputsMonsanto, Bayer Officials Defend Proposed $66 Billion M…
September 21, 2016
Top officials for Monsanto and Bayer defended their proposed $66 billion merger before skeptical senators on Tuesday, insisting that the Read More
ManagementUpcoming Shows & Recent Events
September 19, 2016
Editors Paul Schrimpf and Eric Sfiligoj talk about upcoming trade shows and events and review the Mid America CropLife Association Read More
Industry NewsVerdesian Life Sciences Appoints New CEO
September 19, 2016
Verdesian Life Sciences, a plant health and nutrition company, today announced that its board of directors has named Kenneth M. Avery Read More
Corn
Crop InputsEPA Settles With Syngenta For Alleged Multi-Regional Pe…
September 19, 2016
The U.S. EPA has announced a multi-region settlement with Syngenta Crop Protection, LLC (Syngenta) in Greensboro, NC, for alleged violations of Read More