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ACCESSIONPLANT NAMETAXONOMYORIGINGENEBANKIMAGEAVAILABILITYRECEIVEDSOURCE TYPESOURCE DATECOLLECTION SITECOORDINATESELEVATIONHABITATIMPROVEMENT LEVELNARRATIVE
0PI 698818TifGP-3Arachis hypogaea L. subsp. hypogaea Georgia, United StatesNLGRPNot Available2021DEVELOPEDBreeding materialTifGP-3 and TifGP-4 are both runner market-type in seed and pod size with a spreading growth habit. They both have a very high level of resistance to late leaf spot. TifGP-3 and TifGP-4 exhibited a high level of resistance when evaluated in field trials for two years. This resistance has also been documented in in vitro detached leaf studies. Similar to field results, TifGP-3 and TifGP-4 produced significantly fewer LLS lesions 20 days after inoculation in comparison to susceptible lines. TifGP-3 and TifGP-4 also exhibited significantly lower % sporulating lesions and smaller lesion area in comparison to a susceptible check. TifGP-3 has introgressed segments from A. cardenasii on the top of chromosome A02, the bottom of A02 and the bottom of A03. TifGP-4 has the introgressed segments on the top of A02 and the bottom of A03. The level of resistance to LLS observed in these two lines was not significantly different. Segments on the top of A02 combined with the bottom of A03 accounted for the majority of LLS resistance. Some breeders may choose to use TifGP-4 to minimize the chance of linkage drag. However, important traits may exist in the segment on the bottom of A02 so we are also releasing TifGP-3. 2116488PI 698818
1PI 698819TifGP-4Arachis hypogaea L. subsp. hypogaea Georgia, United StatesS9Not Available2021DEVELOPEDBreeding materialTifGP-3 and TifGP-4 are both runner market-type in seed and pod size with a spreading growth habit. They both have a very high level of resistance to late leaf spot. TifGP-3 and TifGP-4 exhibited a high level of resistance when evaluated in field trials for two years. This resistance has also been documented in in vitro detached leaf studies. Similar to field results, TifGP-3 and TifGP-4 produced significantly fewer LLS lesions 20 days after inoculation in comparison to susceptible lines. TifGP-3 and TifGP-4 also exhibited significantly lower % sporulating lesions and smaller lesion area in comparison to a susceptible check. TifGP-3 has introgressed segments from A. cardenasii on the top of chromosome A02, the bottom of A02 and the bottom of A03. TifGP-4 has the introgressed segments on the top of A02 and the bottom of A03. The level of resistance to LLS observed in these two lines was not significantly different. Segments on the top of A02 combined with the bottom of A03 accounted for the majority of LLS resistance. Some breeders may choose to use TifGP-4 to minimize the chance of linkage drag. However, important traits may exist in the segment on the bottom of A02 so we are also releasing TifGP-3. 2116490PI 698819