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Registration of Peanut Germplasm Line TifGP‐1 with Resistance to the Root‐Knot Nematode and Tomato Spotted Wilt Virus
Author(s) -
Holbrook C. Corley,
Timper Patricia,
Culbreath Albert K.
Publication year - 2008
Publication title -
journal of plant registrations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.316
H-Index - 21
eISSN - 1940-3496
pISSN - 1936-5209
DOI - 10.3198/jpr2007.04.0193crg
Subject(s) - germplasm , tifton , library science , biology , horticulture , computer science , botany , dry matter
Journal of Plant Registrations, Vol. 2, No. 1, January 2008 57 T ifGP-1 (Reg. No. GP-126, PI 648354) is a runner-type peanut (Arachis hypogaea L. subsp. hypogaea var. hypogaea) germplasm line that was released by the USDA-ARS and the Georgia Agricultural Experiment Stations in 2006. This material was released based on resistance to both tomato spotted wilt caused by Tomato spotted wilt virus (TSWV) and the peanut root-knot nematode [Meloidogyne arenaria (Neal) Chitwood]. It was developed at the University of Georgia Coastal Plain Experiment Station, Tifton, GA, and was tested under the experimental designation C209-6-13. Segregating interspecifi c material that originated from a cross of A. hypogaea (PI 261942) with A. cardenasii (GKP 10017, PI 262141) was obtained from North Carolina State University. TifGP-1 originated from a cross of this segregating interspecifi c material with the cultivar MARC I (Gorbet et al., 1992). The population was advanced to the F 4 using single-seed descent. Individual F 4 plants were harvested. The population was then subjected to selection pressure for resistance to M. arenaria using a greenhouse screening technique (Holbrook et al., 1983), and for resistance to TSWV using a fi eld screening technique (Culbreath et al., 1997). TifGP-1 is a small runner market-type in seed and pod size. Based on standard peanut plant descriptors (Pittman, 1995), it is a medium size with a bunch growth habit and a mainstem that is not apparent during the growing season or at harvest. It is a medium maturity class peanut, with about 135 d needed for optimal maturity. TifGP-1 is the fi rst peanut germplasm reported to have resistance to both TSWV and the peanut root-knot nematode, and the fi rst interspecifi c germplasm reported to have resistance to TSWV. In two separate greenhouse studies (Holbrook et al., 2003), TifGP1 supported reproduction rates for M. arenaria of 3983 and 3552 Registration of Peanut Germplasm Line TifGP-1 with Resistance to the Root-Knot Nematode and Tomato Spotted Wilt Virus