Registration of conventional soybean germplasm JTN-5110 with resistance to nematodes and fungal pathogens

Authors: Fritz, Lisa; ARELLI, PRAKASH - Retired ARS Employee; YOUNG, LAWRENCE - Retired ARS Employee; Mengistu, Alemu; Gillen, Anne

Submitted to: Journal of Plant Registrations
Publication Type: Germplasm Registration
Publication Acceptance Date: 7/18/2022
Publication Date: 12/7/2022
Citation: Fritz, L.A., Arelli, P.R., Young, L.D., Mengistu, A., Gillen, A.M. 2022. Registration of conventional soybean germplasm JTN-5110 with resistance to nematodes and fungal pathogens. Journal of Plant Registrations. 17:189-201. https://doi.org/10.1002/plr2.20254.
DOI: https://doi.org/10.1002/plr2.20254

Interpretive Summary: More soybean yield is lost to soybean cyst nematode (SCN) in the United States each year than to any other soybean pathogen, causing estimated crop losses exceeding $1 billion annually. Planting SCN-resistant soybean cultivars is an effective way to suppress reproduction of the pest and reduce seed yield losses, but nematode populations in the U.S. have adapted to overcome the type of resistance found in over 90% of resistant cultivars. We developed new soybean JTN-5110 using ‘Hartwig’, a source of nematode resistance genes that have not yet been widely deployed among U.S. cultivars. JTN-5110 was developed using molecular markers and is resistant to multiple populations of cyst nematode (including those referred to as HG types 0, 1.2.5.7, 2.5.7, 5.7, and 7) that differ in their ability to reproduce on a defined set of soybean lines. JTN-5110 was tested extensively in breeder, regional, and state yield trials and produces seed yields that are competitive with soybean cultivars that do not have SCN resistance. JTN-5110 is a maturity group V soybean that will be useful to soybean breeders in developing new cultivars with durable resistance to SCN.

Technical Abstract: More soybean [Glycine max (L.) Merr.] yield is lost to soybean cyst nematode (SCN; Heterodera glycines Ichinohe) in the United States each year than to any other soybean pathogen, causing estimated crop losses exceeding $1 billion annually. Planting soybeans that resist infection by SCN and limit the reproduction of this pest is a time-tested management solution. JTN-5110 (Reg. No. _____, PI 678369) is a maturity group (MG) V soybean germplasm developed using molecular markers and released by the USDA-ARS in 2017 for its broad resistance to SCN, as well as resistance to reniform nematode (Rotylenchulus reniformis Linford & Oliveira), frogeye leaf spot (caused by Cercospora sojina Hara), and sudden death syndrome (SDS; caused by Fusarium virguliforme O’Donnell & T. Aoki). JTN-5110 is an F3-derived line from the cross of experimental soybean J98-32 × ‘Anand’. JTN-5110 is resistant to H. glycines (HG) types 1.2.5.7 (race 2) and 2.5.7 (race 5) as well as HG types 0, 5.7, and 7 (all corresponding to race 3). From 2010–2017, JTN-5110 was evaluated in 144 environments as part of 17 yield trials that included Uniform Soybean Tests and state variety trials in Arkansas and Tennessee. Seed yield of JTN-5110 was either not significantly different from or significantly higher than the trial mean in 16 of the 17 trials. JTN-5110 is an excellent choice for a MG V parent for developing soybean cultivars with durable resistance to SCN and other economically important diseases of soybean.