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ARS Home » Southeast Area » Tifton, Georgia » Crop Genetics and Breeding Research » Research » Publications at this Location » Publication #391404
Research Project: Development of High-Yielding, High-Oleic Peanut Cultivars or Germplasm with Tolerance to Biotic and Abiotic Stresses

Location: Crop Genetics and Breeding Research

Title: Registration of 'TifJumbo' peanut

Author
item Holbrook, Carl - Corley
item CLEVENGER, J - Hudsonalpha Institute For Biotechnology
item OZIAS-AKINS, P - University Of Georgia
item CHU, Y - University Of Georgia
item BRENNEMAN, T - University Of Georgia

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 12/20/2022
Publication Date: N/A
Citation: N/A

Interpretive Summary: There are several runner market-type peanut varieties with resistance to the peanut root-knot nematode. The objective of this work was to develop a high oleic acid, virginia market-type variety that also has resistance to the peanut root-knot nematode and resistance to spotted wilt caused by tomato spotted wilt virus (TSWV). Crosses were made to develop breeding populations. Marker assisted selection was used to select for nematode resistance and the high oleic to linoleic (O/L) characteristic. TifJumbo has a high level of resistance to both the peanut root-knot nematode and TSWV and has a high ratio of oleic acid to linoleic acid. When tested in fields without nematode pressure TifJumbo exhibited yields that were at least similar to other currently grown peanut varieties. When tested in fields with nematode pressure, TifJumbo exhibited significantly higher yields in comparison to other virginia-type peanut varieties.

Technical Abstract: ‘TifJumbo’ is a virginia-type peanut (Arachis hypogaea L. subsp. hypogaea var. hypogaea) cultivar released by the USDA-ARS and the Georgia Agricultural Experiment Station in 2021. TifJumbo was developed at the University of Georgia Coastal Plain Experiment Station, Tifton, GA. Our research objective was to develop a high oleic acid, virginia market-type cultivar that also has resistance to the peanut root-knot nematode (Meloidogyne arenaria (Neal) Chitwood race 1) and resistance to spotted wilt caused by tomato spotted wilt tospovirus (TSWV). Breeding populations were developed by hybridizing C1805-2-9-16 x N08082olJCT. C1805-2-9-16 is a breeding line selected from the cross of Tifguard x Florida-07. N08082olJCT is a Bailey-derived high oleic breeding line. Marker assisted selection was used in the development of TifJumbo to select for nematode resistance and the high oleic to linoleic (O/L) characteristic. TifJumbo has a high level of resistance to both the peanut root-knot nematode and TSWV and has a high ratio of oleic acid to linoleic acid. When tested in fields without nematode pressure TifJumbo exhibited yields that were at least similar to other currently grown peanut cultivars. When tested in fields with nematode pressure, TifJumbo exhibited significantly higher yields in comparison to Bailey, a widely grown nematode-susceptible virginia-type cultivar. Grade variables for TifJumbo were similar to other common virginia-type peanut cultivars. Seed size and size distribution were similar to other virginia-type cultivars.