Registration of ‘S99-2281’ Soybean Germplasm Line with Resistance to Frogeye Leaf Spot and Three Nematode Species

Authors: SHANNON, J - UNIV OF MISSOURI; JEONG-DONG, LEE - UNIV OF MISSOURI; WRATHER, J - UNIV OF MISSOURI; SLEPER, DAVID - UNIV OF MISSOURI; Mian, Rouf; BOND, JASON - S. ILLINOIS U, CARBONDALE; ROBBINS, ROBERT - UNIV ARKANSAS

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 8/15/2008
Publication Date: 1/1/2009
Citation: Shannon, J., Jeong-Dong, L., Wrather, J., Sleper, D.A., Mian, R.M., Bond, J.P., Robbins, R.T. 2009. Registration of ‘S99-2281’ Soybean Germplasm Line with Resistance to Frogeye Leaf Spot and Three Nematode Species. Journal of Plant Registrations. 3:94-98.

Interpretive Summary: New and improved soybean lines with high-yield and resistance to multiple pests are needed for continuous gain in productivity of the soybean crop in the U.S. Soybean Cyst Nematode (SCN), Southern Root Knot Nematode, and frogeye leaf spot are three major diseases of soybean in the U.S. Soybean [Glycine max (L.) Merr.] germplasm line ‘S99-2281’ soybean was developed at the University of Missouri-Delta Center and released by the University of Missouri Agricultural Experiment Station. It is an F4 plant selection composited in the F5 generation from the cross of N90-516 x S92-1069. S99-2281 is a productive, early group V (relative maturity 5.2) soybean line with broad resistance to soybean cyst nematode Heterodera glycines Ichinohe HG types (races), southern root knot nematode [Meloidogyne incognita (Kofoid & White) Chitwood] and reniform nematode [Rotylenchulus reniformis (Linford and Oliveira). It also has the Rcs3 gene for resistance to all races of frogeye leaf spot caused by Cercospora sojina K. Hara. In combined analyses over three years S99-2281 yielded 3% and 7% more than ‘Manokin’ in southeast Missouri trials and in Uniform Group IVs Tests-Southern States, respectively. This soybean line with multiple pest resistance and high-yield potential should be very useful for soybean breeders to develop productive soybean cultivars with broad resistance to multiple nematode species and frogeye leaf spot.

Technical Abstract: Soybean [Glycine max (L.) Merr.] germplasm line ‘S99-2281’ soybean (Reg. No. CV-, PI) was developed at the University of Missouri-Delta Center and released by the University of Missouri Agricultural Experiment Station. It is an F4 plant selection composited in the F5 generation from the cross of N90-516 x S92-1069. S99-2281 is a productive, early group V (relative maturity 5.2) soybean line with broad resistance to soybean cyst nematode Heterodera glycines Ichinohe HG types (races), southern root knot nematode [Meloidogyne incognita (Kofoid & White) Chitwood] and reniform nematode [Rotylenchulus reniformis (Linford and Oliveira). It also carries the Rcs3 gene for resistance to all races of frogeye leaf spot caused by Cercospora sojina K. Hara. In combined analyses over three years S99-2281 yielded 3% and 7% more than Manokin in southeast Missouri trials (15 tests) and in Uniform Group IVs Tests-Southern States (39 tests), respectively. It will be useful as an elite parent in soybean breeding programs to develop productive soybean cultivars with broad resistance to frogeye leaf spot and resistance to multiple nematode species.