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ACCESSIONPLANT NAMETAXONOMYORIGINGENEBANKIMAGEAVAILABILITYRECEIVEDSOURCE TYPESOURCE DATECOLLECTION SITECOORDINATESELEVATIONHABITATIMPROVEMENT LEVELNARRATIVE
0PI 669816'AR10SDS'Glycine max (L.) Merr. Iowa, United StatesSOYFlowerNot Available2013DEVELOPEDBreeding materialAR10SDS (Reg. No. , PI )is the first Sudden Death Syndrome (SDS)-partially resistant line released by ISU, Project Nos. 4403 and 0159 (Agronomy and Plant Pathology Departments), Iowa State University Research Foundation (ISURF) Docket # 03264. AR10SDS (Experimental line AR03-163008) is partially resistant to Fusarium virguliforme which causes SDS, and resistant to soybean cyst nematode (SeN) phenotypic Race 3 (HG types 0 and 7) caused by Heterodera glycines. AR10SDS is a bulk of 60 F3:8 plants uniform in plant and seed traits. The parentage is 'Ripley' x 'IA1008'. Ripley is resistant to SDS. IA1008 is resistant to SeN. The cross and generations advances were made in Puerto Rico beginning in 2000, ISU research site at the Isabela Substation, University of Puerto Rico, Isabela, Puerto Rico. Yield was evaluated from 2003-2006 in Iowa and in the Northern US regions. From 2003-2011, SDS reSistance was evaluated under greenhouse conditions and in 3D3-infe~ted field :5oil. SeN ~creenin9 was conducted in 2005-2006 under greenhouse conditions. Three SDS resistance QTLs were inherited from Ripley, and two SeN resistance QTLs from IA 1008. Seed yield is similar to IA 1008, significantly (P=0.05) better than 'Parker', and 'Freebom.' It is of early-mid maturity group (MG) I and adapted from 40 to 420 N latitude. AR10SDS may serve breeding programs for its dual disease resistance.1914711PI 669816