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| ACCESSION | PLANT NAME | TAXONOMY | ORIGIN | GENEBANK | IMAGE | AVAILABILITY | RECEIVED | SOURCE TYPE | SOURCE DATE | COLLECTION SITE | COORDINATES | ELEVATION | HABITAT | IMPROVEMENT LEVEL | NARRATIVE | | |
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| 0 | PI 659503 | G01-PR16 | Glycine max (L.) Merr. | Georgia, United States | SOY | | | 2010 | DEVELOPED | 2007 | | | | | Breeding material | G01-PR16 possesses the Rpp(?)Hyuuga gene conditioning resistance to Asian soybean rust (ASR), caused by Phakopsora pachyrhizi. This is based on its red brown reaction when inoculated with Georgia isolates of P. pachyrhizi in the greenhouse and in the field, and on its possession of the Hyuuga marker alleles at the SSR markers Satt460 and Satt307. In 2 years of field testing in the ASR screening nursery at Attapulgus GA, G01-PR16 averaged significantly less ASR canopy damage than the ASR susceptible cultivar Dillon, and had a similar canopy rating to its resistant parent, Hyuuga. In a greenhouse screening, G01-PR16 produced the red brown reaction and did not sporulate when inoculated with a mixture of isolates collected from Georgia, while Dillon produced tan sporulating lesions. Based on field observations in three Georgia field environments (2002-2004) and in the 2007 purification increase, G01-PR16 was consistently rated resistant to bacterial pustule caused by Xanthomonas campestris pv. glycines (Nakano) Dye. The results from a southern root-knot nematode (Meloidogyne incognita) screening experiment indicated that G01-PR16 was resistant. G01-PR16 has the determinate growth habit, purple flowers, gray pubescence, tan pod walls, and yellow seed coats with buff hilia. G01-PR16 is a Maturity Group VI line (relative maturity 6.4) that matures 2 d earlier than Dillon and 19 d earlier than Hyuuga. G01-PR16 averaged 10 cm shorter than Dillon and was similar to Dillon with regard to lodging. G01-PR16 produced seed that averaged 35 mg seed-1 heavier than Dillon seed, but were similar to Dillon in protein and oil concentrations. When tested in seven ASR-free environments, G01-PR16 averaged 19% higher in seed yield (524 kg ha-1) than Hyuuga and 10% less than Dillon. | 1842665 | PI 659503 |