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This article in CS

  1. Vol. 19 No. 6, p. 786-788
     
    Received: July 2, 1979
    Published: Nov, 1979


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doi:10.2135/cropsci1979.0011183X001900060010x

Inheritance of Testa Color Variegation in Peanut1

  1. W. D. Branch and
  2. Ray O. Hammons2

Abstract

Abstract

The inheritance of testa color variegation was investigated in reciprocal crosses between the variegated (red on white) PI 274191 ✕ solid red PI 371965 peanut (Arachis hypogaea L.) genotypes. F2 phenotypic segregation was consistent with that of a genetic model for incomplete dominance at one locus, designated V. Microscopic examination showed that the V gene inhibited full cellular development of the outer red epidermal layer of the testa in certain regions. This inhibition exposed the underlying white cellular layer resulting in a variegated pattern. The homozygously recessive locus, v, does not prevent the r2 locus from producing phenotypes with solid red color testa.

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