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A Note on Testcrosses Between Tan or Pink Testa Color and Recessive Red Peanut Genotypes¹

Authors: W. D. Branch , C. C. Holbrook

  • A Note on Testcrosses Between Tan or Pink Testa Color and Recessive Red Peanut Genotypes¹

    ARTICLES

    A Note on Testcrosses Between Tan or Pink Testa Color and Recessive Red Peanut Genotypes¹

    Authors: ,

Abstract

Phenotypically distinguishing between tan and pink peanut (Arachis hypogaea L.) testa color can be difficult. Genetic separation was attempted by testcrosses with homozygously recessive red testa genotypes (r2r2, r3r3). The recessive red testa color was found to differ from all of the following pink and tan cultivars: Sunbelt Runner, Southern Runner, Starr, Toalson, and the tan colored Krinkle-leaf genotype (F1F2D1D2r1) by only one of the two recessive red loci. Even though these results show that testcrossing to recessive red genotypes is not a viable approach for discerning tan versus pink testa color, it does suggest that several peanut cultivars already carry one recessive red gene.

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Keywords: Arachis hypogaea L, Groundnut, seedcoat color inheritance, Cultivars

How to Cite:

Branch, W. & Holbrook, C., (1991) “A Note on Testcrosses Between Tan or Pink Testa Color and Recessive Red Peanut Genotypes¹”, Peanut Science 18(2), p.109-110. doi: https://doi.org/10.3146/i0095-3679-18-2-12

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Published on
01 Jul 1991
Peer Reviewed

Author Notes

1Contribution of the University of Georgia, College of Agriculture and the U.S. Department of Agriculture, Agricultural Research Service.