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ACCESSIONPLANT NAMETAXONOMYORIGINGENEBANKIMAGEAVAILABILITYRECEIVEDSOURCE TYPESOURCE DATECOLLECTION SITECOORDINATESELEVATIONHABITATIMPROVEMENT LEVELNARRATIVE
0PI 663944TifGP-2Arachis hypogaea L. subsp. hypogaea Georgia, United StatesS9SEED2011DEVELOPEDBreeding materialTifGP-2 is runner market-type in seed and pod size. It has a spreading runner growth habit with an erect mainstem that is prominent throughout the growing season, and at harvest. It is a medium maturity class peanut, with about 135 days needed for optimal maturity. TifGP-2 has a tan testa (seed coat) with percent meat comparable to other runner cultivars. TifGP-2 is most similar to the cultivar, Tifguard. Tifguard is resistant to the peanut root-knot nematode, and this resistance is the result of a single dominant gene contained within an introgression on chromosome 9A. This introgressed chromosome segment is large, spanning one-third to one-half of chromosome 9A, which may result in yield drag. These late generation sister line with (Tifguard) and without (TifGP-2) nematode resistance can be valuable research tools to obtain a better understanding of the interaction of nematodes with other pathogens of peanut.1890975PI 663944