Abstract
A better understanding of the genetic relationship among different testa colors is needed in peanut (Arachis hypogaea L.) breeding programs. Numerous genes are involved in this important U.S. market quality trait. However, the relationship among some of these genes is not yet known. The objective of this study was to determine the interaction among the three genes (P, w1, and w2) controlling purple and wine testa color. No maternal or cytoplasmic differences were found among three reciprocal purple x wine testcrosses. The F1, F2, and F3 segregation results suggest that purple testa color of PI 331334 differs from that of wine testa color parental lines (PI 264549, Wine-Frr 1 and Wine-Frr 2) by only two genes. These findings illustrate that the dominant purple testa color gene (P) is independent from at least one of the two recessive wine genes (w1 w1 or w2w2).
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Keywords: Arachis hypogaea L, cross combinations, Groundnut, inheritance, seed coat
How to Cite:
Branch, W., (2001) “Genetic Relationship between Purple and Wine Testa Color in Peanut¹”, Peanut Science 28(1), p.19-20. doi: https://doi.org/10.3146/i0095-3679-28-1-5