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Corn+Soybean Digest

New Nematode-Resistant Soybean Line

A new soybean line developed by Agricultural Research Service (ARS) scientists is good news for growers. The line, JTN-5109, is effective against the most virulent soybean cyst nematode, called LY1.

In the U.S., the nematode caused an estimated yield loss of 94 million bushels in 2007. Genetic resistance has been the most effective means of controlling the pest.

Nearly all nematode-resistant soybean varieties currently available contain resistance genes from one of two sources — soybean lines “Peking” or Plant Introduction (PI) 88788. JTN-5109, however, has combined nematode resistance from three sources — “Peking,” PI 437654 and PI 567516C.

JTN-5109 is the latest soybean line developed by geneticist Prakash Arelli and his team at the ARS Crop Genetics Research Unit's satellite laboratory in Jackson, TN.

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