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The Journal of Heredity 2001:92(6)
© 2001 The American Genetic Association 92:509-511

Brief Communication

Linkage Between Loci Controlling Nodulation and Testa Variegation in Peanut

K. E. Dashiell, M. Gallo-Meagher, and D. W. Gorbet

From the Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, OK 74078-6028 (Dashiell), Agronomy Department, P.O. Box 110300, University of Florida, Gainesville, FL 32611-0300 (Gallo-Meagher), and Agricultural Research and Education Center, University of Florida, Marianna, FL 32446 (Gorbet).

Address correspondence to Maria Gallo-Meagher at the address above.

Linkage of loci controlling nodulation (N1) and testa variegation (V) was studied for cultivated peanut (Arachis hypogaea L.). The lines M4-2 (nonnodulating, variegated; VVn1n1n2n2N3N3) and UF 487A (nodulating, nonvariegated; vvN1N1n2n2N3N3) were used as parents in the crosses M4-2 x UF 487A, M4-2 x (UF 487A x M4-2), and their reciprocals. Individual plants were evaluated for nodulation and testa variegation in the F1, F2, F3, F1BC1, and F2BC1 generations. Data indicate that the N1 and V loci are linked with calculated crossover percentage of 7.1%.


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